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Deltran Battery Tender®
WATERPROOF
VIBRATION RESISTANT (VRW)
Battery Chargers
Power Tender Plus: Models 12V6A & 24V3A
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS: This manual contains
important safety and operating instructions for the DELTRAN
BATTERY TENDER® VRW Power Tender Plus Battery Chargers, both
12V6A and 24V3A models. CAREFULLY READ THESE
INSTRUCTIONS BEFORE USING THE BATTERY CHARGER.
WARNING AND CAUTION LABEL DEFINITIONS:
WARNING
WARNING indicates a potentially hazardous situation, which, if
not avoided, could result in serious injury or death.
CAUTION
CAUTION indicates a potentially hazardous situation, which, if not
avoided, may result in minor or moderate injury.
CAUTION
CAUTION used without the safety alert symbol indicates a
potentially hazardous situation that if not avoided, may result in
property damage.
GENERAL PRECAUTIONS
CAUTION
WORKING WITH LEAD ACID BATTERIES AND BATTERY CHARGERS:
All lead acid batteries have the potential to emit gasses that may combine into
a combustible or explosive mixture. In many cases, it is possible that lead acid
batteries will emit these gasses during normal discharge and charging
operations. Because of this potential danger, it is important that you follow the
precautions recommended by both the battery and battery charger
manufacturers before using either one.
USING MANUALS: Study all of the battery manufacturer's precautions and
specific recommendations for safe operation such as not removing cell caps
while charging and the recommended rates of charge (charger output current).
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CAUTION
CHARGER LOCATION: LOCATE the charger as far away from the battery as
is allowed by the length of the output cable harness. NEVER set the charger
above the battery. NEVER set the charger on a surface constructed from
combustible material.
CHARGER VOLTAGE COMPATIBILITY: NEVER use a battery charger
unless the battery voltage matches the output voltage rating of the charger.
For example, do not use a 12-volt charger with a 6-volt battery and vice-versa.
EXCESSIVE MOISTURE: The charger body and power cords are fully
waterproof. However, do not expose the AC and DC electrical connections at
the ends of the power cords to rain or snow.
CHARGER ATTACHMENTS: Do not use attachments that are not
recommended or sold by Deltran or its affiliates. To do oth erwise may result in
the risk of electric shock, fire, or possibly some other unforeseen potential
personal injury situations.
HANDLING POWER CORDS: When handling electric power cords, always
pull by the plug rather than by the cord. This will reduce the risk of damage to
both the plug and cord, and it will minimize the likelihood of electric shock
resulting from that damage.
LOCATION OF POWER CORDS: Make sure all electric power cords are
located so that they cannot be stepped on, tripped over, or otherwise
subjected to damage or stress.
MONITORING SEALED & NON-SEALED BATTERIES: When leaving a
battery charger connected to either a sealed (AGM or GEL) or non-sealed
(flooded battery) for extended periods of time (weeks, months, etc.),
periodically check the battery to see if it is unusually warm. This is an
indication that the battery may have a weak cell and that it could go into a
thermal runaway condition. If the battery releases an excessive amount of gas
or if the battery gets hotter than 130°F (55°C) during charging, disconnect the
charger and allow the battery to cool. Overheating may result in plate
distortion, internal shorting, drying out or other damage. For flooded batteries,
also check individual cell fluid levels against manufacturer's recommendations
for safe operation.
WARNING
ELECTRIC SPARK & OPEN FLAME: NEVER smoke or allow a source of
electric spark or open flame in the vicinity of the battery or engine. (For
example: Don't charge the battery next to a gas water heater.)
VENTILATION: Do not operate the charger where ventilation is restricted.
The intent here is to allow sufficient airflow to minimize and dissipate the heat
generated by the charger and to diffuse the gasses that may be emitted by the
battery.
CHARGER MAINTENANCE: NEVER disassemble the charger or attempt to
do internal repairs. Take it to a qualified service technician. Assembling the
charger incorrectly may result in the risk of electric shock or create a fire
hazard.
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WARNING
EXTENSION CORDS: An extension cord should not be used unless
absolutely necessary. Using improper extension cord could result in a risk of
fire and electric shock. If extension cord must be used, make sure that:
¾ The pins on the extension cord plug have the same number, size,
and shape as those of the AC power cord plug on the charger;
¾ The extension cord is properly wired and is in good electrical
condition; and
¾ The wire size is as specified in Table 1 below.
TABLE 1: EXTENSION CORD
LENGTH & MINIMUM SAFE CONDUCTOR SIZE
Note: The smaller the AWG number, the larger the conductor diameter.
Length of Cord (feet) 6 to 100 101 to150
Length of Cord (meters) 1.8 to 30.5 30.8 to 45.6
Size of Conductor (AWG) 18 16
Conductor Diameter (mm) 1.25 1.5
WARNING
Do not operate the charger with damaged AC power cords
or plugs or DC output cords or accessories - replace them
immediately.
PERSONAL PRECAUTIONS
WARNING
Battery posts, terminals and related accessories contain lead and
lead components, chemicals known to the State of California to
cause cancer and birth defects or other reproductive harm.
Always wash your hands after handling these devices.
WARNING
WHEN YOU WORK NEAR LEAD-ACID BATTERIES:
1. Someone should be within range of your voice or close enough to come to
your aid if you have an accident;
2. Have plenty of fresh water and soap nearby in case battery acid contacts
skin, clothing, or eyes;
3. Wear complete eye protection and protective clothing. Avoid touching your
eyes while working near a battery. If battery acid contacts your skin or
clothing, wash immediately with soap and water. If acid enters an eye,
immediately flood the eye with running cold water for at least 10 minutes
and get medical attention as soon as possible;
4. Be extra cautious when handling metal tools around a battery. If you drop
a metal tool near a battery it might spark or create a short circuit between
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the battery terminals and some other metal part. Either event may cause
a dangerous electrical shock hazard, a fire, or even an explosion;
5. Remove all 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-circuited current high enough to weld a metal ring or other
piece of jewelry, causing a severe burn;
6. Use Deltran Battery Tender® VRW Power Tender Plus Battery Chargers
for charging lead-acid batteries only. They are not intended to supply
power to an extra low-voltage electrical system or to charge dry-cell
batteries. Charging dry-cell batteries may cause them to burst and cause
injury to persons and damage to property;
INFORMATION NOTE ABOUT DRY-CELL BATTERIES:
There are some wet, non-spillable, lead acid batteries on the market whose
manufacturers' make the claim that they are dry-cell batteries. These batterie s
are sealed, gas-recombinant, starved electrolyte, possibly with AGM
(Absorbed Glass Mat) type construction. It is perfectly safe to use the
DELTRAN BATTERY TENDER® VRW POWER TENDER PLUS BATTERY
CHARGERS to charge these types of batteries. The dry-cell battery warning is
intended for non-rechargeable, alkaline and other similar types of batteries. If
you have any doubt about the type of battery that you have, please contact the
battery manufacturer before attempting to charge the battery.
7. NEVER charge a visibly damaged or frozen battery.
PREPARING TO CHARGE: First, follow all General &
Personal Precautions as previously explained, and then
continue.
WARNING
IF THE BATTERY MUST BE REMOVED FROM THE VEHICLE:
1. To avoid an electric arc (or spark), turn off or disconnect all of the
accessories in the vehicle. Then always remove the cable that is
connected to grounded terminal from battery first;
2. If necessary, clean the battery terminals. Be careful to keep the corrosion
and other debris from coming in contact with your eyes;
3. If the battery is not a sealed battery, then if necessary, add distilled water
to each cell until the battery acid solution reaches the level specified by
battery manufacturer. Do not overfill;
4. Before inserting the charger AC power plug into the electrical outlet, check
the polarity of the battery posts, and attach at least a 24 inch long 6 (AWG)
insulated, battery extension cable to the negative battery post. Then
connect the appropriate charger DC output connectors to the battery and
the extension cable, positive to positive and negative to negative. Never
allow the alligator clips or terminal rings to touch each other after they are
connected to the battery charger.
5. Connect the AC power plug to the electrical outlet.
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WARNING
IF THE BATTERY REMAINS INSTALLED IN THE VEHICLE:
1. DO NOT CONNECT THE CHARGER AC POWER PLUG TO THE
ELECTRICAL OUTLET UNTIL ALL OTHER CONNECTIONS ARE MADE!
2. Place both the AC and DC power cords in the best position to avoid
accidental damage by movable vehicle parts, i.e. hoods, doors, or moving
engine parts (fan blades, belts, or pulleys).
3. Check the polarity of the battery posts. If the positive (pos, p, +) post is
connected to the vehicle chassis, then the vehicle has a positive ground
system. If the negative (neg, n, -) post is connected to the vehicle chassis,
then the vehicle has a negative ground system. Negative ground systems
are the most common.
4. For negative ground systems, connect the positive (red) alligator clip, or
ring terminal to the positive battery post. Then connect the negative
(black) alligator clip, or ring terminal to the vehicle chassis. Do not make
the negative charger clip or ring connection to the carburetor, fuel lines, or
thin, sheet metal parts. Make that connection to the engine block or a
heavy gauge metal part of the frame.
5. For positive ground systems, connect the negative (black) alligator clip, or
ring terminal to the negative battery post. Then connect the positive (red)
alligator clip, or ring terminal to the vehicle chassis. Do not make the
positive charger clip or ring connection to the carburetor, fuel lines, or thin,
sheet metal parts. Make that connection to the engine block or a heavy
gauge metal part of the frame.
6. Connect the AC power plug to the electrical outlet.
ADDITIONAL CHARGER INFORMATION
AUTOMATIC CHARGING AND BATTERY STATUS
MONITORING: DELTRAN BATTERY TENDER® VRW POWER TENDER
PLUS Battery Chargers are completely automatic and may be left connected
to both AC power and to the battery that it is charging for long periods of time.
However, it is prudent to periodically check both the battery and the charger for
normal operation during these extended charging periods.
The charger output power, voltage, and current all depend on the condition of
the battery that is being charged. DELTRAN BATTERY TENDER® VRW
POWER TENDER PLUS Battery Chargers have 2 status lights (one red, and
one green) that indicate the operating mode of the charger, and the condition
of the battery that is connected to the charger.
The charger operates in one of the 3 primary charge modes: the bulk mode
(full charge power, constant current, increasing battery voltage, battery is 0%
to 75% or 80% charged), the absorption mode (high constant voltage,
decreasing current, battery is 75% to 100% charged), or the storage/float
maintenance mode (low constant voltage, minimal charge current, battery is
100% to 103% charged).
When the battery is fully charged, the green status indicator light will turn on
and the charger will switch to a storage/maintenance charge mode. DELTRAN
BATTERY TENDER® VRW POWER TENDER PLUS Battery Chargers will
automatically monitor and maintain the battery at full charge.
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SPECIAL FEATURES: The DELTRAN BATTERY TENDER® VRW
POWER TENDER PLUS Battery Chargers have the following special feat ures:
SHORT CIRCUIT PROTECTION: The battery charger can sustain a
short circuit connection directly across its DC output terminals indefinitely
without any risk of either electric shock or excessive heat.
REVERSE POLARITY PROTECTION: The battery charger is
protected by an external fuse against any damage due to the DC output leads
being connected to the opposite polarity battery post. No damage will result to
either the battery or the battery charger.
TIME REQUIRED TO CHARGE A BATTERY:
The DELTRAN BATTERY TENDER® VRW POWER TENDER PLUS Battery
Chargers charge at a rate of either 5.0 Amps (5.0 Amp-Hours per hour) or 2.5
Amps (2.5 Amp-Hours per hour). Therefore, a fully discharged 15 Amp-Hour
battery will take approximately 2.4 hours or 4.8 hours respectively, to recharge
to 80% capacity. Some large automotive or marine, deep cycle type batteries
may take more than 24 hours to fully recharge.
WORKING WITH A DEAD BATTERY OR A BATTERY WITH A VERY
LOW VOLTAGE:
If you try to charge a dead 12-volt battery with a very low voltage, below 9
volts, the DELTRAN BATTERY TENDER® VRW POWER TENDER PLUS
Battery Charger supply its full power to the battery. However, there is no
guarantee the recharge will be successful. There is a good chance that the
battery has already been damaged, and it is important to follow all of the
standard safety precautions. Check the battery often to see if it is getting very
warm, or to detect a sulfur odor and/or a hissing sound. If you any of these
symptoms are present, immediately remove the AC power from the battery
charger. The hissing sound should stop within 30 seconds after you remove
the AC power from the charger. Let the battery sit, open a window or a door to
increase ventilation in the area; if available, use a fan to increase air
circulation. Do not attempt to remove the DC cables from the battery until it
has cooled down and the sulfur odor has dissipated.
NOTE:
If a 12 Volt, Lead-Acid battery has an output voltage of less than 9 volts when
it is at rest, when it is neither being charged nor supplying electrical current to
an external load, there is a good chance that the battery is defective. As a
frame of reference, a fully charged 12-Volt, Lead-Acid battery will have a reststate, no-load voltage of approximately 12.9 volts. A fully discharged 12-Volt,
Lead-Acid battery will have a rest-state, no-load voltage of approximately 11.4
volts. That means that a voltage change of only 1.5 volts represents the full
range of charge 0% to 100% on a 12-Volt, Lead-Acid battery. Depending on
the manufacturer, and the age of the battery, the specific voltages will vary by
a few tenths of a volt, but the 1.5-volt range will still be a good indicator of the
battery charge %.
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STATUS INDICATOR LIGHTS:
indicator light operation:
< RED - FULL RECHARGE (Automatic): BULK & ABSORPTION: When
the red light is on, the battery charger is in the process of fully charging
the battery.
< GREEN FLASHING – ABSORPTION: When the green light is flashing,
the charger is in the constant voltage absorption mode. The charger
automatically switches to float maintenance when the charge current
drops below 0.4 amps or 8 hours after the absorption mode begins.
< GREEN – CHARGE COMPLETE: FLOAT / MAINTENANCE: When the
green light is on and not flashing, and the red light is off, the battery
charger is in the storage / maintenance mode. In this mode the charger
will maintain the battery at full charge by attempting to keep a constant
voltage across the battery terminals. If the battery becomes partially
discharged due to an external current draw or excessive internal battery
losses, the charger will automatically switch itself back to the full
recharge mode of operation.
< RED & GREEN Alternating – ERROR: When the red and green light
are alternating light is flashing, the most likely cause is either a high
resistance connection between the charger and a battery with a voltage
less than 12 volts, or the battery is sulfated.
The following describes the
TROUBLESHOOTING CHECK LIST:
1. NEITHER OF THE CHARGER LIGHTS TURN ON AFTER THE AC POWER
PLUG IS CONNECTED TO THE AC ELECTRICAL OUTLET: Check the
charger AC power plug connection at the AC electrical outlet. Verify that the AC
electrical outlet is functioning properly by plugging in another appliance or a
voltmeter.
2. THE CHARGER GREEN LIGHT GOES ON IMMEDIATELY (within a few
seconds) WHEN AC POWER IS APPLIED TO THE CHARGER:
connections at the battery may be intermittent, the output fuse may be blown, the
battery may be defective, or the battery might already be fully charged. Note: Since
the battery charger is not spark proof, there is no way to determine if the green light
indicates that the battery is fully charged, or if the charger output cables have an open
circuit, either a fractured wire, a blown fuse, or a corroded, high resistance connection
between the charger rings or clamps and the battery terminals. However, when you
first apply AC power to the charger, if the red light comes on but stays on for less than
3 seconds and then the green light comes on, it is very likely that the charger output
circuit is open. Check fuses first.
3. CHARGER IS CHARGING BUT THE GREEN LIGHT DOES NOT TURN ON
IN A REASONABLE AMOUNT OF TIME:
more time to fully charge than originally expected, there may be another appliance
drawing electric power from the battery while it is charging, or the battery may be
defective. Also, a newly purchased battery may not be fully charged and may take
longer to charge initially.
4. THE RED LIGHT COMES ON AGAIN AFTER THE GREEN LIGHT WAS
ALREADY ON: There may be another appliance drawing electric power from the
battery causing its voltage to drop below the reset level. The battery charger then goes
back into full charge mode. Also, the charger connections at the battery may be
intermittent or the battery may be defective.
The battery may be large and requires
The charger
SPECIFICATION SUMMARY:
Technical Specifications (12V6A & 24V3A Models)
Input Voltage / Frequency
Input Current (Maximum)
Output Current
Output Voltage
Charger Output Voltage Amplitudes throughout the entire
charge algorithm, including absorption and float maintenance,
are consistent with the optimum charging recommendations of
the major lead-acid battery manufacturers.
Maximum Operating Temperature
Charger Case Dimensions: Approx. 5.2 in (132 mm) L
(includes 0.2' total endplate thickness) x 5.0 in (127 mm) W x
2.0 in (51 mm) H (at the highest point).
(76.2mm) total (1.5 inch on each end of the length dimension) for safe
bend of AC power cord strain relief and DC output cable harness.
Shipping Weight: Approx. 4.0 lbs (1.82 kg) with Accessories
Design Conformance & Revision: All Deltran charger
products are 100% inspected and electrically tested prior to
shipment. All Deltran battery charger designs are proprietary
and subject to change without notice. Deltran makes no
specific claims nor does it either make or imply any specific
guarantee or warranty with respect to either the physical
configuration or performance of any of the battery charger
products listed herein, including suitability for purpose or
merchantability.
100 to 132 VAC / 50 / 60 Hz
1.5 Amps RMS @ 100 VAC
5 or 2.5 Amps DC
12 or 24 Volts DC
DELTRAN CORPORATION
801 EAST INT’L SPEEDWAY BLVD
DeLand, Florida 32724
Phone 386-736-7900 FAX 386-736-0379
www.batterytender.com
50 °C Typical
Allow an additional 3 in
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