INSTRUCTION MANUAL
BatteryMINDer®
Model 12248*
Charger / Maintainer /
Desulfator-Conditioner
VDC Electronics, Inc.
147 D Woodbury Rd.
Huntington, NY 11743
www.batteryminders.com
techsupport@vdcelectronics.com
READ AND SAVE THESE
INSTRUCTIONS
*NOT for use with
Aviation Type 12-V Batteries
4 A
BatteryMINDer
®
Charger / Maintainer /
Full Time De-Sulfator - Conditioner
12-Volt @ 2/4/8 Amp
Model 12248
8 A
2 A
AGM
GEL
FLOODED
Select
Charge Rate
Select
Battery Type
PRESSPRESSPRESS
Battery Condition Indication
Power On & Battery Connected
Before Start Charge:
Green = OK - Accepted
Yellow = Weak / Sulfated / Deep Discharge*
After Charge:
Green = Good
Yellow = Sulfated / Weak
*
MAINTENANCE
(FLOAT)
Stop
Restart
VDC Electronics, Inc.
800-379-5579 (ET)
www.batteryminders.com
U.S. Patented & Patent Pending
Hold for 5 sec. for full reset
Green = Power ON
ERROR:
Red = Polarity Reversed
/ Battery = less than 3-Volts
*
Red (Blinking) = Battery not fully charged charger in float-maintenance mode
*
Charge - Float
Green (solid) = Charging
Green (blinking) = Float (maintenance)
*See Instruction Manual
For Lead-Acid
Batteries ONLY
Rev. P-071510 P/N VDC12248-MNL
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 2 P/N VDC12248-MNL
TABLE OF CONTENTS
Safety Instructions.........................................................................3
Preparing To Charge.......................................................................5
Charger Location...........................................................................5
DC Connection Precautions.............................................................6
Qualifying Your Battery: ..................................................................8
Testing a Filler Cap or Manifold-type Lead Acid Battery...........................8
Testing With A Hot/Cold Calibrated Hydrometer Tester............................10
Testing a Sealed, AGM or Gelled-type Lead Acid Battery ........................10
Unit With Call-outs .....................................................................12
Simplied Operating Instructions ....................................................13
LED Indicator Functions ...........................................................14, 15
Detailed Operation Instructions ......................................................16
Temperature Sensor ABS-248 (At-the-Battery Sensor) (Included).....17, 21 - 24
Maintaining Multiple Batteries.........................................................25
Battery Congurations ..................................................................26
Troubleshooting........................................................................27
Detailed Specications.............................................................29 - 33
Charging Prole..........................................................................34
For Repair Or Replacement.............................................................35
Guarantee And Warranty.................................................................36
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 3 P/N VDC12248-MNL
Underwriters Laboratories (UL)
REQUIRED SAFETY INSTRUCTIONS
WARNING
TO REDUCE THE RISK OF FIRE,
ELECTRIC SHOCK, OR INJURY TO
PERSON, OBSERVE THE FOLLOWING:
1. Do not expose charger to rain or snow. It is designed to
operate ONLY INDOORS.
2. USE of any attachment not specifically recommended by
the battery charger manufacturer for use with this exact model
of charger may result in risk of fire & electric shock or injury to
person.
3. An extension cord should not be used, unless absolutely
necessary. Use of an improper extension cord could result in fire
or electric shock. If extension cord must be used be sure:
a. Pins on plug of extension cord are the same number, size,
& shape of plug on charger
b. Extension cord is properly wired and in good condition.
c. Wire size is enough for AC ampere of charger as specified
below: Length of cord, feet (meters) 25 (7.6), 60 (15.2), 100
(30.5), 150 (45.6) AWG Size #18.
4. Do not use charger if it received a sharp blow, been
dropped, or damaged.
5. Charger contains no serviceable parts. If it fails for any
reason, return to the address shown within for a free replacement
under warranty.
6. To reduce risk of electric shock, unplug charger from
outlet before attempting any cleaning.
7. WARNING - RISK OF EXPLOSIVE GASES.
WHENEVER YOU WORK NEAR A LEAD ACID BATTERY
IT IS DANGEROUS. BATTERIES GENERATE EXPLOSIVE
GASES DURING NORMAL BATTERY OPERATION. FOR THIS
REASON, IT IS OF UTMOST IMPORTANCE THAT EACH TIME
BEFORE USING YOUR CHARGER, YOU MUST READ THIS
MANUAL AND FOLLOW THE INSTRUCTIONS EXACTLY.
To reduce risk of battery explosion, follow these instructions
and those published by the battery manufacturer and the
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 4 P/N VDC12248-MNL
manufacturer of any equipment you plan to use in the
vicinity of the battery. Review cautionary markings on the
products and the engine.
8. PERSONAL PRECAUTIONS when working with or near
a lead acid battery.
a. Someone should be able to hear your voice or close
enough to aid you when working near a lead acid battery.
b. Have fresh water and soap nearby case battery acid
contact skin, clothing, or eyes. Wear complete eye
protection and clothing protection. Avoid touching eyes
while working near battery.
c. If battery acid does contact skin or clothing, wash
immediately with soap and water. If acid entered the eye,
immediately flood the eye with running water for at least 10
minutes and get help immediately.
d. NEVER smoke or allow a spark of flame near battery or
engine.
e. Be extra cautious to reduce risk of dropping a metal tool or
auto part onto battery. It might spark or short circuit battery
or other electrical part that may cause an explosion.
f. Remove personal metal items such as rings, bracelets,
necklaces, and watches when working with a lead acid
battery. A lead acid battery can produce a short circuit
current high enough to weld a ring or the like to metal,
causing a severe burn.
g. Charger is designed to be used for recharging lead acid
batteries ONLY. Never use it to power a low voltage
electrical system, or for attempting to recharge dry cell
batteries that are commonly used in house holds. These
batteries may explode and cause injury to persons and
damage property
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 5 P/N VDC12248-MNL
NEVER CHARGE A FROZEN BATTERY OR ONE AT A
TEMPERATURE ABOVE 123° F.
PREPARING TO CHARGE
a. If necessary to remove battery from equipment to charge.
Always remove ground terminal rst. Turn off all accessories in
the vehicle, so as not to cause an arc.
b. Be sure area around battery is well ventilated while battery is being charged. Force gas vapors away by using a piece of
non-metallic material as a fan.
c. Clean battery terminals. Be careful to keep corrosion from
contacting eyes.
d. Add distilled water to each cell until battery acid reaches
level specied by the manufacturer. This helps Purge excessive
gas from cells. Do not overll. For a battery without caps, follow
manufacturer’s recharging instructions.
e. Study all battery manufacturer’s specic instructions such
as removing cell caps while charging and recommended charge
rates.
f. Determine condition of battery, by referring to instructions
herein, before ever attempting to charge or desulfate any / all
batteries.
CHARGER LOCATION
a. Make sure charger is as far away from battery as output
cables permit.
b. Never place charger directly above battery being charged;
gases from battery will corrode and damage charger.
c. Never allow battery acid to drip on charger when reading
specic gravity or lling.
d. Do not operate charger in a closed-in area or restrict ventilation in any way.
e. Do not set battery on top of charger.
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 6 P/N VDC12248-MNL
DC CONNECTION PRECAUTIONS
a. Connect and disconnect DC output clips from battery only
after removing charger power cord from outlet.
b. Attach clips to battery posts and twist or rock back and forth
several times to make good contact. This tends to keep clips
from slipping off terminals and reduces risk of sparking.
FOLLOW THESE INSTRUCTIONS WHEN BATTERY IS
INSTALLED IN EQUIPMENT (VEHICLE, PWC, BOAT,
TRACTOR, ETC.) A SPARK NEAR BATTERY MAY CAUSE
BATTERY TO EXPLODE. TO REDUCE RISK OF A SPARK
NEAR BATTERY:
c. Position DC output cord to reduce risk of damage by hood,
door, covers, or moving engine parts.
d. Stay clear of fan blades, belts, pulleys, and other parts that
can cause injuries.
e. Check polarity of battery posts. POSITIVE (POS, P, +)
usually has a larger diameter than NEGATIVE -.
f. Determine which post of battery is grounded (connected) to
the chassis of equipment. If negative post is grounded see Item
N. If positive post is grounded see item P.
N. For negative grounded equipment, connect POSITIVE (RED)
clip from charger to POSITIVE (POS, P, +) ungrounded post of
battery. Connect NEGATIVE (BLACK) clip to vehicle chassis
or engine block away from battery. Do not connect clip to
carburetor, fuel lines, or metal body parts.
g. For positive ground equipment, connect NEGATIVE
(BLACK) clip from charger to NEGATIVE (NEG, N,)
UNGROUNDED POST OF BATTERY. Connect POSITIVE (RED)
CLIP to chassis or engine block away from battery.
DO NOT CONNECT CLIP TO CARBURETOR, FUEL LINES,
OR SHEET METAL BODY PARTS.
Connect to heavy gauge metal part of frame or engine.
h. When disconnecting charger, disconnect charger from AC
outlet, then remove clips from vehicle chassis, and battery posts.
Operating instructions for charge information.
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 7 P/N VDC12248-MNL
FOLLOW THESE STEPS WHEN BATTERY IS OUTSIDE OF
VEHICLE OR EQUIPMENT. A SPARK NEAR THE BATTERY
MAY CAUSE BATTERY EXPLOSION. TO REDUCE RISK OF A
SPARK NEAR BATTERY:
a. Check polarity of battery posts. POSITIVE (POS, P, +)
usually has a large diameter than NEGATIVE (NEG, N, -) battery
post.
b. Connect (RED) charger clip to (POS +) post of battery.
c. Position yourself and free end of cable as far away from
battery as possible, then connect NEGATIVE (BLACK) charger
clip to free end of cable.
d. Do not face battery when making final connections.
e. When disconnecting charger, always do so in reverse
sequence of connecting procedure and break first connection
while as far away from battery as practical.
DO NOT ATTEMPT TO PERMANENTLY INSTALL
ANY CHARGER NOT SPECIFICALLY DESIGNED FOR
PERMANENT INSTALLATION, ESPECIALLY IN A WET /
MARINE ENVIRONMENT
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 8 P/N VDC12248-MNL
QUALIFYING YOUR BATTERY:
Preliminary Requirements
NOTE: The BatteryMINDer has no electrical output unless it is
connected to a healthy battery. Testing the BatteryMINDer with
a volt or an Amp meter without the unit being connected across a
good battery will result in a false reading. If you experience any
problems, or are not sure of how to properly use or connect your
BatteryMINDer, please e-mail our technical support at:
techsupport@vdcelectronics.com or call our toll-free technical
support line 800-379-5579 x206 (Eastern Time). Be certain to
leave your phone number with the area code, time zone and
the best time to call.
To gain the best result from your new charger and to maximize
the life and performance of your batteries we strongly recommend you qualify (test) your batteries before attempting to either
charge-maintain or desulfate them. Remember, even if you just
purchased a “new” battery it may have been subjected to conditions that have caused “sulfation” such as high temperature
(>=80°).
NOTE: If your battery is new and you are certain it was not
subject to conditions that could have caused sulfation*, even
before you purchased it, then you can disregard our recommendations for qualifying / testing your battery, before using
the BatteryMINDer.
* Such as high temperature storage (=/> 80°F) and/or allowed to
self-discharge to 12.4 Volts or lower.
Testing a Filler Cap or Manifold-type Lead Acid Battery
1. Carefully remove all 6 caps or both manifold-type covers
from your battery.
2. Check the water-liquid electrolyte level. If the level is low
or has ever been below top of plates, severe lead plate sulfation
has taken place. Significant recharge/reconditioning time is needed to restore these plates to a condition where the battery can be
expected to function normally.
3. Refill each cell with distilled water only to the liquid level
indicator found in each cell. Before proceeding further you
must be thoroughly familiar with the safety and operating
instructions.
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 9 P/N VDC12248-MNL
4. Recharge the battery with the BatteryMINDer to ensure that
it is slowly and completely charged before you determine its condition. Allow battery to “rest”* overnight for a minimum of 12 hours
before testing with a temperature compensated hydrometer and/
or digital type voltmeter only.
* “RESTED” = a battery that has been as fully charged as
possible, using a 3 stage charger (model 12248) and left disconnected from charger or any type load for a minimum of
12 hours.
5. If the BatteryMINDer battery condition LED lights
(
YELLOW) within 72 hours (single battery) or no balls float in
one or more cells, your battery may be too far gone to be fully
desulfated. Reconnect battery to your BatteryMINDer and press
the Maintenance mode button. Allow battery to remain in maintenance mode for a minimum of 72 hours, before re-test. Use a hot/
cold calibrated hydrometer tester for the most accurate results**
(see next page) if you see an increase in the Specific Gravity
(SG) or voltage indicating that there is an improvement in the
battery’s condition, continue desulfating for an additional 72 hours
and retest the battery. Continue this process until the SG or voltage readings no longer increase.
Temp. Compensated Hydrom-
eter - meter or 4 ball type
Full Capacity
Percentage
1.270 (4 Balls oating) 100%
1.250 (3 Balls oating) 75%
1.190 (2 Balls oating) 50%
1.150 (1 Balls oating) 25%
1.120 (0 Balls oating)
May denote shorted cell or
battery that has been severely
discharged and may not be
recoverable
0%
Specic Gravity – Capacity
TABLE 1
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 10 P/N VDC12248-MNL
Testing with a Hot/Cold Calibrated Hydrometer Tester
Read the tester instructions carefully for most accurate readings.
1. When using the tester the first time or after a long period of
non-use, fill the tester with the battery fluid and let it sit for 1/2
hour or longer. This will soak the balls in order to give you more
accurate readings. Failure to do so will give you false readings
indicating a battery that may not be in as good a condition as you
may have thought.
2. After inserting the tester in a cell, gently tap the tester several times against the inside wall of each cell to dislodge air bubbles that will cause more balls to float than should. Failure to do
so will yield false readings that indicate a battery that is not fully
desulfated or does not qualify for desulfation.
3. If no balls float in any cell, the cell is shorted. This means
your battery is beyond the point of being properly recharged or
reconditioned-desulfated. Dispose of the battery.
If each cell floats three (3) or more balls (or 1250 on gauge-type),
your battery can be desulfated-reconditioned.
4. Always rinse the tester with fresh water after every use.
Failure to do so will cause false readings.
Testing a Sealed, AGM or Gelled-type Lead Acid Battery
These batteries have no filler caps or manifold-type covers.
Because you cannot gain access to the interior of your battery
you cannot test it with a hydrometer.
USE A DIGITAL VOLTMETER ONLY:
1. Recharge the battery with the BatteryMINDer to ensure it is
as completely charged as possible, before you determine its condition. Allow battery to “rest” (see pg. 9) overnight for a minimum
of 12 hours before testing with a digital voltmeter only. Failure
to test a “rested” (see pg. 9) battery will cause false readings.
Be certain to read and understand all safety related instructions
(pages 3 to 7) before proceeding further.
2. Measure battery’s voltage, without any load attached. If
the voltage is less than 12.4 volts (Typically 50% of charge) the
battery may be too heavily sulfated to be fully recoverable. If
voltage is 12.4-V or higher full recovery can be expected, given
sufficient time (average 1-2 weeks for batteries that are heavily
sulfated).
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 11 P/N VDC12248-MNL
3. Connect the BatteryMINDer to the battery.
4. Charge battery to its maximum level. Press MaintenanceFloat (select Battery type) button, if it does not go into this mode
automatically. Allow battery to remain for a minimum of 72 hours
before retesting. If improvement is seen, continue until battery
voltage reaches full capacity level or no further increase is seen.
Note: OPTIMA brand “Yellow Top” starter/deep cycle bat-
teries have a fully charged “resting” voltage of 13.1 (OCV).
Increase above values accordingly.
OCV - “Rested”
Voltage
Full Capacity
Percentage
12.9 - 13.1 Volts 100%
12.6 - 12.9 Volts 75%
12.4 - 12.6 Volts 50%
12.2 - 12.4 Volts 25%
12.0 - 12.2 Volts 0%
<11 Volts = shorted
OCV=Open Circuit No Load Voltage
TABLE 2
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 12 P/N VDC12248-MNL
1
10
9
876
4
5
3
2
11
12
1) Battery clip cordset w/ qwik connect plug (pgs.13, 16)
2) Ring terminal cordset w/ qwik connect plug (pgs. 13, 16)
3) Mounting tabs
4) Input power cordset (pg. 13, 18)
5) Output cord w/ qwik connect plug (pg. 13, 16)
6) Temperature sensor input connector (pg. 13, 17, 21)
7) Charge rate selection button (pg. 13, 17, 18)
8) Battery type selection button (pgs. 13, 17, 18)
9) Stop/Restart selection button (pgs. 13, 17, 18)
10) LED indicators for power, connection, fault, battery
condition, charge status (pgs.13-15, 18–20, 24)
11) 12 Volt Power cordset (Optional)
12) Temperature sensor with cord and ring terminal (pgs. 17,
21 - 24) (Included)
4 A
BatteryMINDer
®
Charger / Maintainer /
Full Time De-Sulfator - Conditioner
12-Volt @ 2/4/8 Amp
Model 12248
8 A
2 A
AGM
GEL
FLOODED
Select
Charge Rate
Select
Battery Type
PRESSPRESSPRESS
Battery Condition Indication
Power On & Battery Connected
Before Start Charge:
Green = OK - Accepted
Yellow = Weak / Sulfated / Deep Discharge
*
After Charge:
Green = Good
Yellow = Sulfated / Weak
*
MAINTENANCE
(FLOAT)
Stop
Restart
VDC Electronics, Inc.
800-379-5579 (ET)
www.batteryminders.com
U.S. Patented & Patent Pending
Hold for 5 sec. for full reset
Green = Power ON
ERROR:
Red = Polarity Reversed
/ Battery = less than 3-Volts
*
Red (Blinking) = Battery not fully charged -
charger in float-maintenance mode
*
Charge - Float
Green (solid) = Charging
Green (blinking) = Float (maintenance)
*
See Instruction Manual
For Lead-Acid
Batteries ONLY
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 13 P/N VDC12248-MNL
Simplified Operating Instructions
(Read and thoroughly understand ALL SAFETY Instructions
on pages (3-7) and Qualifying Your Battery pages 8-11,
BEFORE proceeding further.
1. Attach a battery connector assembly (supplied) to output
cordset of charger, either the clips or ring terminal assembly, NEVER BOTH at same time.
2. Attach output to battery terminals-RED band =Positive +
BLACK band = Negative.
2a. Attach temperature sensor ABS-248 (if supplied) to battery
and then to charger* (if required).
3. Select desired charge rate, 2 A for small batteries, 4 A
for medium or 8 A for deeply discharged, large or multiple
batteries. Charger will automatically start in Gel and 2 Amp
modes when first plugged into 120 Vac power and has to be
unplugged from wall or shut off by pushing Stop/Restart button.
Reset to correct modes, if required.
4. Select Correct battery type: Flooded (wet-filler caps or
manifold, Sealed AGM [“dry”] or Sealed Gel )**
5. Plug AC power cord into 120 Vac electrical outlet. Observe
REVERSED Polarity LED indicator. If lit RED, reverse battery
connector attachments on battery.
6. Observe Power On - Error Indicator, LED Must be lit
GREEN***.
7. Observe GREEN LED indicator labeled Charge-Float = Solid
when charging, Blinking when maintaining battery(s). May return
to solid GREEN intermittently or if power interruption occurs, to
Gel – 2 A modes.
IF IN DOUBT REGARDING ANY OF THE ABOVE, REFER TO
FULL INSTRUCTIONS
* See detailed instructions for need and method of properly connecting
sensor to battery, pgs. 21 - 24.
** IMPORTANT If in doubt about what type, consult with seller or
manufacturer of battery(s), before going further. Choosing the wrong
setting will cause over or under charge, leading to shortened battery life
or generating potentially hazardous hydrogen gas.
*** See full instructions if not lit GREEN.
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 14 P/N VDC12248-MNL
Battery Condition Indication
Battery connected BEFORE full Charge: Vb<11V YELLOW
Vb>11V GREEN
If Stop/Restart Button is Pressed during charging mode STOPS CHARGING AND ALLOWS RESET OF ALL SELECTIONS
Battery Sulfation check (AFTER FULL CHARGE): Vb<11V YELLOW
Vb>11V GREEN
Battery Sulfation check (AFTER FULL CHARGE): Vb<12.5V* YELLOW
Vb>12.5V* GREEN
*12.75V for Gel battery. *12.75-V for AGM battery setting. 12.5-V for Flooded battery
LED INDICATOR FUNCTIONS -- Tables 3 (top)
and 4 A&B (bottom)
LED Status - (Power / Error and Charge LEDs) POWER / ERROR CHARGE - FLOAT
GREEN RED GREEN
A.C. power disconnected, battery connected correctly OFF OFF
A.C. power connected, battery connected GREEN OFF
A.C. power connected, battery connected (press Stop/Restart button) GREEN ON
At Soft mode, Bulk charge mode, Absorption mode GREEN ON
In Sulfate check mode Float charge mode GREEN FLASH
A.C. power connected Reversed Battery Polarity RED ON OFF
A.C. power connected, charger output Clip shorted RED ON OFF
A.C. power connected, battery voltage is less than 3V RED ON OFF
Timed-out when in SoftStart or Bulk mode RED FLASH OFF
Timed-out when in Absorption mode & Forced to Float mode RED FLASH FLASH
Battery Fault / Battery Weak RED FLASH OFF
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 15 P/N VDC12248-MNL
4 A
BatteryMINDer
®
Charger / Maintainer /
Full Time De-Sulfator - Conditioner
12-Volt @ 2/4/8 Amp
Model 12248
8 A
2 A
AGM
GEL
FLOODED
Select
Charge Rate
Select
Battery Type
PRESSPRESSPRESS
Battery Condition Indication
Power On & Battery Connected
Before Start Charge:
Green = OK - Accepted
Yellow = Weak / Sulfated / Deep Discharge
*
After Charge:
Green = Good
Yellow = Sulfated / Weak
*
MAINTENANCE
(FLOAT)
Stop
Restart
VDC Electronics, Inc.
800-379-5579 (ET)
www.batteryminders.com
U.S. Patented & Patent Pending
Hold for 5 sec. for full reset
Green = Power ON
ERROR:
Red = Polarity Reversed
/ Battery = less than 3-Volts
*
Red (Blinking) = Battery not fully charged charger in float-maintenance mode
*
Charge - Float
Green (solid) = Charging
Green (blinking) = Float (maintenance)
*See Instruction Manual
For Lead-Acid
Batteries ONLY
LED INDICATOR FUNCTIONS
LED indicators refer to charger label at right
GREEN GREEN GREEN
2A 4A 8A
2A ON OFF OFF
4A OFF ON OFF
8A OFF OFF ON
TABLE 5
GREEN GREEN GREEN
GEL AGM FLOODED
GEL ON OFF OFF
AGM OFF ON OFF
FLOODED OFF OFF ON
TABLE 6
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 16 P/N VDC12248-MNL
Detailed Operation Instructions Model 12248
After carefully reading and understanding the Safety Instructions
contained in this manual (pages 3 to 7) and having evaluated
your battery as described in Qualifying Your Battery (pages 8 to
10) you are properly prepared to begin using your charger.
1. Attach output cord of charger to either the Battery Clip(s)
Assembly (BCA) (supplied) or the Ring Terminal Assembly (RTA)
(supplied) depending on your preference. However never use
both assemblies at the same time for any reason whatsoever.
Never use either of these assemblies on any other charger
or for any other purpose such as improvised “jumper
cables”, etc.
Using the RTA on batteries remaining in their normal use location
(in same place they are regularly installed will normally prove the
safest and most convenient. If you have several applications you
may wish to purchase additional Ring Terminal Assemblies (RTA)
available from your dealer or VDC Electronics, Inc. directly.
Note: this assembly contains a 15 Amp automotive type fuse
and is replaceable should for any reason it were to blow.
Never replace this fuse with any type whose rating is higher
than 15 Amps, as seriously harmful results may occur.
2. Identify the positive and negative posts or connections on
your battery, usually clearly designated with the polarity markings
of + (positive) and – (negative). If you have previously installed
the RTA referred to in 1. above, you need only to press the
connector plug of the charger’s output cord into the mating plug
of the RTA. Push firmly and do not leave any space between
them. Correct polarity and a good connection will be your reward.
Attach the BCA to the proper battery posts, clamps or screw
terminals, depending on type of battery. ALWAYS connect the
negative (Black) clip to a metal grounding point (Negative
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 17 P/N VDC12248-MNL
ground installations such as most modern cars, trucks, boats,
RVs, etc.) as far away from battery as possible for maximum
safety. Never connect to any type of fuel line.
Note: Older vehicles or other devices may be Positive ground
installations requiring different connection recommendations. If
unfamiliar or unsure which battery type of grounding system you
have, check with our Tech Support personnel before proceeding
further.
Note: Temperature compensation Sensor Assembly (Part#
ABS-248) (Included). See pages 21 - 24 for full detailed
instructions.
3. Determine the type of battery you wish to charge. When certain
press the Select Battery Type button. The most common is the
Flooded kind, distinguished by removable filler caps (6) or two (2)
manifold covers (Maintenance-Free) which should not be removed
unless specifically allowed by the battery manufacturer. The
second most popular is the Absorbed Glass Mat (AGM) sealed-
valve regulated type. Lastly is the sealed valve regulated Gel
battery.
Note: If unsure of your battery type, check with the battery seller,
manufacturer or our Tech Support before proceeding further. The
normal (default) setting of your charger is GEL, as this is the lowest
voltage output and thus the one least likely to cause your battery
to be overcharged, should you incorrectly select the wrong
battery type. However be aware that using the wrong setting for
a particular type battery can dramatically shorten its life and/or
cause potentially explosive gas to be emitted from the battery.
4. After selecting battery type, determine the correct charge rate
for your particular battery. Small batteries (< 10 AH) should be
charged at the 2 Amp setting rate. Larger types (10-30 AH) such
as used in motorcycles, PWC, etc. are best charged at the 4 Amp
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 18 P/N VDC12248-MNL
rate setting. For batteries whose capacity rating is greater than
30AH or a fast recharge is needed set charger to the 8 Amp rate.
If unsure or recharge time is not important, always choose a low
setting (2 or 4 Amp).
Note: The safest procedure is to choose the lowest possible
setting when in doubt or recharge time is not important, as there
may be conditions such as an internally damaged battery that
cannot be reliably detected.
5. After selecting both battery type and charge rate, plug the
unit’s Power cord into a standard – grounded 120 Vac electrical
outlet. The Power ON LED Indicator will light GREEN. If it does
not light GREEN check the outlet to be sure it is functioning. In
addition, be sure if outlet is controlled by a switch, no one will
accidentally shut off the power to the outlet. Check for correct
polarity = (no ERROR RED LED Indicator). If ERROR Indicator is
lit, reverse the charger’s output connections to the battery.
6. Press the Stop/Restart button. The Charge – Float LED
Indicator will light GREEN. The charger will now begin charging
by first checking the battery to determine its voltage and ability
to accept a charge. Should the battery not have a normal fully
discharged voltage (10.5-V minimum) the unit will begin charging
in the “Soft-Start” mode to determine if the battery can be safely
charged. If it cannot, the Power ON – Error LED will flash RED
and charging will be stopped. Battery should be carefully checked
under a load by a qualified person before further attempting to
charge it.
Note: If the battery does not have a minimum no load OCV
(Open Circuit Voltage) of 3 volts, the ERROR LED will light
RED and charger will reject battery.
No further effort should be made to charge this battery with this
charger or any charger. Discard this battery, unless it has just
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 19 P/N VDC12248-MNL
been subjected to a long period of continuous discharge under
a load such as can occur with leaving lights on or cranking an
engine excessively. Allow such a battery to “Rest” for several
hours (overnight if possible) before determining if it is defective.
Be very suspicious of any 12-V battery that does not have
at least 11-Volts (OCV) before it is recharged. It may well be
seriously damaged and unsafe for any type of use or recharge.
The unit’s Battery Condition Indication LED will help you
determine if battery is less than 11-Volts (
YELLOW)) or greater
than 11-Volts (GREEN)
7. After battery has been fully charged, the GREEN Charge-
Float LED Indicator will begin blinking. It will continue to blink
indefinitely, unless unit is disconnected from battery or Stop/
Restart button is pressed. Should battery be unable to be fully
charged, the LED will not blink and the RED Error LED will blink.
Battery may not be able to be fully charged, may be too large
or too deeply discharged to be fully charged in the normal time
allowed by charger. If you are certain battery is not defective,
having read and understood completely all of the above concerns
and conditions, proceed to restart the charger by pressing and
holding the Stop/Restart button for approx. 5 seconds until all
LEDs Flash. This allows charger to begin charging battery again.
If battery is not defective it should be able to be fully charged
after being restarted. After sufficient time has lapsed the
GREEN
charge LED Indicator will blink confirming when / if battery is now
fully charged.
Note: If attempting to charge more than one battery at a
time it is very likely the charger will need to be restarted as
described in order to completely charge multiple batteries.
We do not recommend charging more than one battery at
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 20 P/N VDC12248-MNL
a time without confirming the individual condition of each
battery and monitoring the charging and batteries closely.
A better solution is to charge each battery separately using
model 12248 BatteryMINDer and then connect them together,
if desired for long term maintenance-float charging. We
suggest your reading the detailed specifications on pages 29
- 34, including the additional LED indicator functions (pgs.
14 - 15) not already covered above.
After carefully reading these instructions and Troubleshooting
(pgs. 27 - 28) sections, should you still have questions, please
e-mail our technical support department at:
techsupport@vdcelectronics.com.
Allow up to 3 business days for a detailed response to your
questions. Always identify the model number of the product
and revision letter of this manual contained on this page below.
Without this information we may not be able to assist you
correctly.
If your questions have already been answered in this manual you
can expect a response referring you back to this manual and the
specific page(s).
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 21 P/N VDC12248-MNL
INSTRUCTIONS:
TEMPERATURE SENSOR Type: ABS-248
(At-the-Battery Sensor) (Included)
If battery is being charged or maintained in temperatures as
low as 32°F to a high of 125°F this sensor must be used.
Congratulations on purchasing the most advanced charger-maintainer-desulfator conditioner on the market today. Read you
manual carefully to understand all of its features. If you purchased
an optional At-the-Battery Temperature Sensor, please read and
fully understand all of the following before beginning your installation.
Do NOT modify by extending or shortening the extension
cord.
Your rst choice should be to connect it to the Negative (-) post
(clamp or screw) of the battery. This is the best location to sense
the temperature of the battery.
The second choice is to place it as close to the battery as possible. Attachment of the sensor to the side or top of battery is also
a possible option, under the right circumstances. Be careful to
ensure it will not come loose in service. Finally, if placing the sensor on the battery in not practical, place it where the ambient temperature the battery is exposed to (surrounded by) can be sensed.
When properly installed on the battery, your charger is set to
provide your battery with what it needs to out-live and out-perform
any similar battery used in the same application-conditions, by a
factor of two (2).
Temperature has a direct
effect on the life of a battery. The design life of the
battery is based on an average annual temperature
of 25°C (77°F). As the
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 22 P/N VDC12248-MNL
temperature increases above 25°C (77°F), the life of the battery
decreases. The chart below shows the effects of temperature.
For example: If a battery’s design life is 10 years at 25°C (77°F),
but the average battery temperature is 35°C (95°F), the life of the
battery will be only 5 years a 50% decrease.
*GNB Industrial Power, A Division of Exide Technologies, Section
92.30 Part No. Z99-Mar/Sep I&O REV 10/01
Effects of Temperature on Battery Life*
Maximum Annual
Average
Battery Tempera-
ture
Maximum Battery
Temperature
Percent Reduction in
Battery Life
25°C (77°F) 50°C (122°F) 0%
30°C (86°F) 50°C (122°F) 30%
35°C (95°F) 50°C (122°F) 50%
40°C (104°F) 50°C (122°F) 66%
45°C (113°F) 50°C (122°F) 75%
50°C (122°F) 50°C (122°F) 83%
25°C (77°F) 50°C (122°F) 0%
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 23 P/N VDC12248-MNL
The chart below shows the need to regulate the output voltage of
the charger to ensure against over or under charging your battery
over a wide range of temperatures. Using your At-the-Battery
Sensor will accomplish this better than any other known method.
AGM Charge and Float Voltages at Various Temperature Ranges**
Temp
°F
Charge Float Temp
°C
Optimum Maximum Optimum Maximum
≥120 13.60 13.90 12.80 13.00 ≥49
110 – 120 13.80 14.10 12.90 13.20 43 – 49
100 -110 13.90 14.20 13.00 13.30 38 – 43
90 – 100 14.00 14.30 13.10 13.40 32 – 38
80 – 90 14.10 14.40 13.20 13.50 27 – 32
70 – 80 14.30 14.60 13.40 13.70 21 – 27
60 – 70 14.45 14.75 13.55 13.85 16 - 21
50 – 60 14.60 14.90 13.70 14.00 10 - 16
40 – 50 14.80 15.10 13.90 14.20 4 - 10
≤40 15.10 15.40 14.20 14.50 ≤4
**East Penn Technical Manual of Valve-Regulated Lead-Acid (VRLA) Absorbed Glass Mat (AGM) Batteries, E.P.M. Form No. 0139 Rev. 3/04
Note: The above chart shows the Charge and Float voltage ranges v. temperature for sealed
24-Volt AGM type batteries. Values will differ for sealed Gel or Flooded (ller cap) or
maintenance-free types.
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 24 P/N VDC12248-MNL
Gel Charge and Float Voltages at Various Temperature
Ranges**
Temp
°F
Charge Float Temp
°C
Opti-
mum
Maxi-
mum
Optimum
Maxi-
mum
≥120 13.00 13.30 12.80 13.00 ≥49
110 – 120 13.20 13.50 12.90 13.20 44 – 48
100 -109 13.30 13.60 13.00 13.30 38 – 43
90 – 99 13.40 13.70 13.10 13.40 32 – 37
80 – 89 13.50 13.80 13.20 13.50 27 – 31
70 – 79 13.70 14.00 13.40 13.70 21 – 26
60 – 69 13.85 14.15 13.55 13.85 16 - 20
50 – 59 14.00 14.30 13.70 14.00 10 - 15
40 – 49 14.20 14.50 13.90 14.20 5 - 9
≤39 14.50 14.80 14.20 14.50 ≤4
**East Penn Technical Manual of Valve-Regulated Lead-Acid (VRLA) Gelled Electrolyte (gel),
E.P.M. Form No. 0139 Rev. 3/04
Note: This chart shows the Charge and Float voltage ranges v. temperature for sealed
24-Volt Gel type batteries. Values will differ for sealed AGM, Flooded (ller cap) or maintenance-free types Manifold cover(s).
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 25 P/N VDC12248-MNL
MAINTAINING MULTIPLE BATTERIES
BatteryMINDer 12248 maintenance charger Desulfators can be
used to maintain up to six (6) 12-volt batteries at a time, providing
each battery is fully operational (no dead-dying cells), free of
sulfate and meeting the minimum full charge “rested” (see pg.
9) voltage of 2.13 volts / cell, after being fully desulfated. Press
the Maintenance - Float charge button immediately to ensure
BatteryMINDer is in the proper mode for maintenance chargingdesulfating, immediately after making proper connection to the
batteries.
ALL batteries Must be properly tested to ensure they are in good
condition (no dead-dying cells or excessive sulfation) before
maintaining them in multiples. Only healthy, fully desulfated
batteries should ever be MAINTAINED in sets of 2 or more. Test
each cell of All filler cap batteries using an accurate, temperature
compensated hydrometer.
Test sealed (no filler caps) batteries using an accurate, DIGITAL
type ONLY, voltmeter. The Minimum voltage Must not be less
than 2.13 volts / cell after fully charging battery and letting it
“Rest*” for 12 hours minimum, before testing. If battery voltage is
less than 2.13 / cell you must first desulfate it until you reach a
“Rested*” voltage of 2.13 volts / cell.
Attempting to desulfate more than one (1) battery at a time will
yield very poor results, as the strongest (healthiest) and not the
weakest (most sulfated) battery will receive the majority of the
desulfation pulse energy. Exception is when two batteries are
identical and have been used in parallel or series with each other
during their entire life.
(*see pg. 9)
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 26 P/N VDC12248-MNL
Never mix batteries of different type construction / chemistry, or
condition (old with new). ALWAYS test each individual battery
to be certain it is healthy and free of sulfate before attempting
to charge or maintain them, either as a single battery or in sets.
NEVER connect multiple batteries together for charging purposes
using less than #18 Gauge insulated wire.
VDC Electronics, Inc. does not make nor can it supply or
recommend, any type of wire harness to connect individual
batteries for the purpose of charging them in groups, due to the
many battery terminal sizes and configurations that exist.
See diagram (adjacent) for the various and most common multiple
battery configurations.
Battery Congurations
Model 12248 12 VOLT @ 2A - 4A - 8A
+
-
12V
+
-
12V
-
+
REGRAHC OT +
REGRAHC OT
-
+
-
6V
+
-
6V
+
-
6V
+
-
6V
+
REGRAHC OT
+
-
REGRAHC OT
-
12 VOLT PARALLEL 12 VOLT (SERIES-PARALLEL)
Using 6 Volt Batteries
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 27 P/N VDC12248-MNL
Troubleshooting - Model 12248
We use the word “Indicator” to
mean the various LEDs (Light
Emitting Diodes) showing the
various faults, modes, and
conditions of the battery and / or
charger.
The words “unit”, “charger” or
“recharger” means your model
12248 BatteryMINDer
Problem:
Power ON indicator does not light
Solution:
Check electrical outlet. If controlled
by a wall switch be sure switch is
on and try to prevent accidental
shutting it off while charger is
working.
Problem:
ERROR indicator lights RED
(several possibilities can be the
cause)
Solution:
1. Output leads - connections to
battery may be reversed. Switch
(reverse) connections at battery
2. If still remains RED check
battery voltage. If 3-Volts or less
battery may be damaged and
should not be recharged. If battery
was just recently removed from a
load (headlights, door lights, etc.
or vehicle not used for extended
time without a charger-maintainer,
allow battery to “recover” by letting
it “rest” without a load. If battery is
healthy and just deeply discharged
it should recover its voltage (rise
above 3 volts) sufficiently to allow
charger to begin an attempt to
fully recharge it. If after battery has
“rested” (see pg. 9) it may not be
able to be recovered – recharged.
It should be safely discarded
– recycled.
Problem:
ERROR Indicator lights RED and
is blinking
Solution:
1. Battery(s) may be weak,
heavily sulfated, or too large to
fully charge before unit times
out. Allow battery to remain in
Maintenance-Float mode for 72
hours or more and then attempt to
recharge again.
2. Battery may be so large it may
require a second full recharge.
Repeat recharge by pressing
and holding Stop/Restart for 5
sec. untill ALL LEDs light. Reset
charge rate and battery type, if
needed.
3. If recharging multiple batteries,
2 or more complete recharge
cycles may be needed. Repeat
full recharge by pressing Stop/
Restart button again. If still RED
- blinking, you may need to charge
each battery separately.
Problem:
Battery Condition Indicator lights
YELLOW
(After battery has been completely
charged)
Solution:
Battery still has an unacceptable
level of sulfation and must stay
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 28 P/N VDC12248-MNL
connected to charger and remain
in Maintenance-Float mode
(GREEN blinking indicator) for
72 hours or longer. Then stop
charger by pressing Stop/Restart
button and observe Indicator. If
still YELLOW repeat (up to 3 full
cycles) or until indicator lights
GREEN.
Problem:
Battery Condition Indicator lights
YELLOW (May be several causes)
(Before battery is completely
charged)
Solution:
Battery can be weak due to
sulfation, self discharge or was
very deeply discharged.
Attempt a full recharge and
recheck after completion. If still
YELLOW follow procedure for
(After battery has been completely
charged.)
Problem:
Charger Indicators show battery
is fully charged, but fails to
provide good cranking, lighting or
equipment run time, as it did when
newer.
Solution:
You may have chosen too high a
charge rate (4A or 8A) for the size,
capacity and / or condition of your
battery, repeat full recharge cycle
at a lower charge rate and leave
in maintenance-float mode for 72
hrs. before retesting.
Note: Slow charging in most
cases, is preferable to higher
(faster) rates of charge.
Problem:
Error and Charge LEDs blink
simultaneously
Solution:
Charger has timed out before
battery has completely charged.
Reset unit. Repeat reset - full
recharge by pressing Stop/Restart
button and holding it down until
ALL LEDs flash. Reset charge
rate and battery type, if needed.
Press Stop/Restart button to begin
full recharge.
Problem:
Unit goes in to 2A & GEL mode.
Solution:
1. Charger has lost connection
to battery, or lost AC power and
battery is weak. Ensure that
connections are sound and power
is not being interrupted.
2. Battery has fallen bellow 12.5-V
while in Maintenance-Float mode.
This can occur if the battery is
connected to a load, if the battery
is sulfated or if there is a bad cell.
Disconnect from any load, check
the battery for a bad cell and
restart charger.
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 29 P/N VDC12248-MNL
DETAILED SPECIFICATIONS - VDC Model No. 12248
14.1V / 14.4V / 14.6V---2/4/8A MCU controlled H.F. Battery
Charger
Note: This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one of more of the
following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
Electrical Parameters
Input Voltage: 90-140 Vac
Input Frequency: 50/60 Hz
Unloaded input current: 80 mAac
Input Current consumption at 120Vac input, output 13V 8A loading
(UL1236) Approx: 2Aac
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 30 P/N VDC12248-MNL
DETAILED SPECIFICATIONS - VDC Model No. 12248 (con’t.)
Charging Output Control Characteristics
• Charging Flow : Battery condition detect>Soft Start Charge>Bulk
Charge>Absorption Charge>Sulfate Check>Float Charge
• Soft Start Charging Activity conditions: Battery Voltage is over 3
Vdc and less than 10.5Vdc (the charger will start at 2A mode &
Gel mode automatically)
• Soft Start Charging output current control: (2A / 4A / 8A mode)
0.5 / 1 / 2 ±0.25 Adc
• Soft Start Charging Time Limited: (Stop charge If battery cannot
be charged over 10.5V after 6 hrs, error LED flash indicated) 6
±0.25 Hours
• Bulk Charging Activity conditions: Battery Voltage is over
10.5Vdc (the charger will start at 2A mode & Gel mode
automatically)
• Bulk Charging Current control at 2A mode: (Selected by
pressing Charge Rate Button) 2 +0.35 / -0 Adc
• Bulk Charging Current control at 4A mode: (Selected by
pressing Charge Rate Button) 4 +0.40 / -0 Adc
• Bulk Charging Current control at 8A mode: (Selected by
pressing Charge Rate Button) 8 +0.45 / -0 Adc
• Max. rated output voltage and current: 13.0V at 8Adc 14.6V at
6.5Adc
• Bulk Charging Time Limited: (Stop charge If battery cannot be
charged reach 14.1/14.4/14.6-V after 20 hrs, error LED flashes)
20 ±1 Hours
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 31 P/N VDC12248-MNL
DETAILED SPECIFICATIONS - VDC Model No. 12248 (con’t.)
Absorption mode transitions to Float mode conditions in AGM
setting:
Mode: 1) Charging current
2) 5 Hours Time-out: after 5 Hours unit switches to Float
Charge Mode
Absorption mode Thermal Runaway Protection: Stops Charging
when the second current sample is larger the first current sample
(Positive dI/dt)
Switch to Float mode in Bulk charge or Absorption mode when
Battery type Button is Pressed For 3 Seconds or longer.
GREEN Charge - Float LED will blink
Float Charge output Voltage control 13.4@24°C (75°F) ±0.25 Vdc
Float Charge current control (2A Rate) 1 Adc ±0.25
(4A Rate) 2 Adc ±0.25
(8A Rate) 4 Adc±0.25
Float charge transitions to PWM Float Charge Mode after 1 Hour
Float Pulse Charge voltage control 13.4@24°C ±0.25 Vdc
Float Pulse Charge current control: (2A Rate) 1 Adc ±0.25
(4A Rate) 2 Adc ±0.25
(8A Rate) 4 Adc ±0.25
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 32 P/N VDC12248-MNL
DETAILED SPECIFICATIONS - VDC Model No. 12248 (con’t.)
Battery sulfation check period (After absorption charge is finished): 10
minutes
Unloaded output voltage when battery is disconnected: 0.5 Vdc (max.)
Output short-circuit current when battery disconnected: 5mA dc (max.)
Battery flow back current (to the charger) when connected to 12V battery,
AC Power disconnected: 30 (max.) mA dc
Maintenance-Float min. allowable voltage: (before restarting Charge
mode) 12.5Vdc
All LED indicators will shut off if AC power is disconnected for 5 Minutes
Full time Desulfation output pulse current control Ip-p ±3 Adc
Full time Desulfation output PWM* frequency 100 ±10Hz
Full time Desulftation duty 0.3%
*Pulse Width Modulated
Temperature Compensation (with ABS-248 Battery Temperature Sensor)
GREEN GREEN GREEN
2A 4A 8A
2A ON OFF OFF
4A OFF ON OFF
8A OFF OFF ON
GREEN GREEN GREEN
GEL AGM FLOODED
GEL ON OFF OFF
AGM OFF ON OFF
FLOODED OFF OFF ON
LED Indicator functions
Tables 5 & 6
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 33 P/N VDC12248-MNL
DETAILED SPECIFICATIONS - VDC Model No. 12248 (con’t.)
Transformer
Transformer Type: Ferrite core transformer
Rising Temperature of Transformer: 80ºC Max.
Insulation
Primary to Secondary insulation Test: 1240 Vac 60Hz with 1 minutes,
10mA ac no break down found
Primary to core insulation test: 1240 Vac 60Hz with 1 minutes, 10mA ac
no break down found
Secondary to core insulation test: 500 Vac 60Hz with 1 minutes,
10mA ac no break down found
Electrical Cable
Input Lead and plug specifications :CUL SJT 18AWG X2 with UL 2-pin
plug, External Length 6 ft
Output lead : 1015 105°C VW-1 16AWG with Trailer connector, External
Length 6 ft
Extension cord: 1)1015 105°C VW-1 16AWG with Trailer connector &
battery clamp, External Length 24”
2)1015 105°C VW-1 16AWG with Ring terminal &
blade type Fuse, External Length 24”
Ring terminal I.D. dimensions Negative 8mm, Positive 10mm
Physical Parameters
Weight: 2.2 lbs.
Plastic enclosure material: UL-94V0 #1 Noryl or #2 PC+ABS #3 PC
Enclosure Dimension: Approx. 5.713 (W) x 5.516 (L) x 2.86 (H) inches
Environmental Characteristics
Operating temperature : -10° to 40°C
Storage temperature : -10° to 80°C
Operating Humidity range: 0 to 95% RH
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 34 P/N VDC12248-MNL
3-Volt
start
10.5-Volt
Soft Start
(0.5A/1A/2A)
(6 Hours
time-out
limited)
Bulk Charge
(2A / 4A / 8A [20 Hours] timer limited)
Gel Mode: 14.1-Volt @ 24
º
C
AGM Mode:14.6-Volt @ 24
º
C
Flooded Mode: 14.4-Volt @ 24
º
C
(with Temperature compensation)
Absorption Charge
(5 hours minimum timer Limited)
Sulphate
Check
(10 min.)
Float Charge
(one hour)
Float Pulse Charge (PWM)
(1A / 2A / 4A Max. current Limited)
Time Unlimited
Full Time Desulphator
Full Time Desulphator
Time
Current
Voltage
14.6-Volt
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 35 P/N VDC12248-MNL
FOR REPAIR OR REPLACEMENT
In the event that you believe your product may be defective, you
MUST speak to a VDC Electronics technician at 1-800-379-5579
x206 (ET) before proceeding further.
If after speaking with our tech support personnel it is necessary
to return the unit, you MUST request an RMA number.
All returns must be authorized by VDC Electronics.
Items must be returned within 10 days after receiving your
Return Merchandise Authorization number and must be
packed in the original packaging with manual and all connectors
included.
Your Return Merchandise Authorization number must be shown
on the return shipping label as follows:
VDC Electronics, Inc.
Returns Department
Attn.: RMA # (Enter Your RMA# Here)
155 W. Carver St., Ste. 2
Huntington, NY 11743
Note: If your questions relate to safety concerns, please
contact:
customersupport@vdcelectronics.com or if a potentially
hazardous emergency may exist cease using the product
immediately and call (800) 379-5579 ext. 1 (ET) Monday –
Friday or contact our tech support at ext. 6.
Standard operating questions, clearly
answered in this manual, will not be answered by phone.
YOUR NOTES:
BatteryMINDer
®
Model 12248
Rev. P-071510 Page 36 P/N VDC12248-MNL
Guarantee and Warranty
NOTE: ALL returns must be authorized by VDC Electronics after
speaking to a VDC Electronics technician at 1-800-379-5579 x6
(ET). Please see Page 35 for details.
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