TABLE OF CONTENT
Topic Page
Inventory Of Contents 3
Features 4
Function Keys 5
Operating Modes 7
Charge Mode 8
Discharge Mode 13
Refresh Mode 15
Test Mode 16
Trickle Charge 18
BEFORE USI NG OUR BATTERY CHARGER, READ IN DETAILS ALL
INSTRUCTIONS CONTAINED IN THIS MANUAL. KEEP THIS MANUAL IN A
SAFE PLACE AS YOU MAY NEED TO USE IT AT A LATER DATE.
We draw the attention of all users of this device: please follow the safety
and maintenance instructions which are part of this manual. Also read the
caution markings on the charger, the manual, and the gift box.
Display Mode Information 19
Care and Maintenance 23
Specification 24
Warranty Information 25
FAQ 28
1
BATTERY CHARGER
Instruction Manual
2
INTRODUCTION:
Congratulations on purchasing this intelligent charging unit which enables quick and
optimum charging to “AA” and “AAA” rechargeable batteries. With charging, discharging,
refreshing and capacity test functions as well as individual LCD displays for charging
compartments; this charging unit is reliable, user-friendly and ideal for use in the home,
office or on journey.
INVENTORY OF CONTENTS
1. Charging unit
2. Transformer
3. Instruction Manual
The Charging unit
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CAUTIONS:
1. The charger is restricted to charging NiCd and NiMH rechargeable batteries only.
Never adopt this charger to other types of batteries such as alkaline, lithium, carbon
zinc or other types that are not specified.
2. The charging unit shall only be used only at normal indoor room conditions.
3. Always follow the charging instructions for the rechargeable battery. Observe the
recommended charging current of the rechargeable batteries. Never adopt a charging
current higher than recommended in the charging process.
4. Never use any power cable and transformer other than those originally supplied with
the charging unit.
5. The rechargeable batteries may become hot during charging (especially when high
charging current is chosen). User shall take extra care when taking out the batteries
after charging.
6. Unplug the charging unit from the power source when not in use.
FEATURES:
The Charging unit
z Charging the rechargeable battery in various current value (200, 500 or 700 mA)
z Individual LCD display for compartments
z Charging both “AA” and “AAA” rechargeable batteries simultaneously
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z Overheat detection to protect rechargeable batteries from over-charging
y
z Minus delta voltage (-dV) detection for charge termination
z Damaged batteries detection
z Discharge mode (first discharging and then charging) to remove memory effect of
rechargeable batteries
z Refreshing old rechargeable batteries by discharging/ charging cycles
z Test function to check the capacities of rechargeable batteries
z Different Charging/ Discharging functions can be launched independently and
simultaneously to each rechargeable battery in the compartments
z Various display modes during charging/ discharging – the charging current (in mA),
time elapsed (in hh:mm), the terminal voltage (in V) and accumulated capacities (in
mAh or Ah)
FUNCTION KEYS:
There are three easy-to-use function keys and four number keys in the charging unit:
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CURRENT key
Compartment Number key
Press and release the Number key to select a particular battery compartm ent for charge
modes and/or display mode adjustment.
MODE key
The mode key shall first be pressed and held for about 5 seconds to activate the mode
change. The subsequent pressing of the mode key will enable to toggle between the
“Charge”, “Discharge”, “Test” and “Refresh” mode. To change the operating mode for an
individual rechargeable battery, first press corresponding NUMBER key then press the
MODE key.
DISPLAY key
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Compartment
Number ke
MODE key
s
DISPLAY key
Press and release to se l e ct the displays of the charging current (in mA), time elapsed (in
hh:mm), the terminal voltage (in V) and accumulated capacities (in mAh or Ah) during the
charging or discharging process.
To change the display content of a particular rechargeable battery, first press corresponding
NUMBER key then press the DISPLAY key.
CURRENT key
Press to select the amount of current to be applied (within the first 8 seconds after batteries
are inserted) in different operating modes (also see “Start charging the rechargeable
batteries” below).
OPERATING MODES OF THE CHARGING UNIT
This powerful charging unit provides the following operating modes:
a. Charge up the rechargeable battery (CHARGE) – to charge up the rechargeable
battery, automatically switch to trickle charge after rechargeable battery is full.
b. Discharge then charge up the rechargeable battery (DISCHARGE) – to discharge the
rechargeable battery then charge it for minimizing the memory effect.
c. Refresh the rechargeable battery (REFRESH) – to refresh the rechargeable battery to
its maximum capacity by charging and discharging the rechargeable battery
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repeatedly until no further increase in the capacity is estimated. For old rechargeable
batteries or those have not been used for a long times, refreshing may bring the
rechargeable battery back to the optimum condition.
d. Check the rechargeable battery capacity in mAh/ Ah (TEST)
CHARGE MODE
Charging at 200 mA is the default-operating mode of the charging unit. User may select a
charging current of 200, 500 or 700 mA.
The estimated time of charging by various charging current is tabulated in Table 1.
Table 1. Charging Time with various charging current
Size of battery Battery Capacity Charging current selected (mA) Estimated charging time
AA 2500 mAh
AAA 700 mAh
700 ~3 hr 35 min
500 ~5 hr
200 ~13 hr
700 ~60 min
500 ~84 min
200 ~3 hr 30 min
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Note:
z User shall always observe the recommended maximum charging current of the
rechargeable batteries. In general, 200 mA is a recommended charging current if
rapid charging is not necessary. It is definitely safe and optimum to the rechargeable
batteries.
z It may be necessary to charge and discharge the new rechargeable batteries for
several times in the beginning before the optimum capacity of the rechargeable
batteries can be obtained. And user is recommended to adopt once the "Refresh"
mode to the new rechargeable batteries in order to achieve the optimum battery
capacity.
z When the transformer has been plugged to the power source, the version number of
the charger (for example “29” ) will be displayed first. Then all the segments will light
up momentarily and the “null” sign will be shown before batteries are placed. If
damaged batteries are placed to the charging unit, the charger will also show “null” on
LCD.
“null” displayed - No battery or damaged
battery is placed to the charging unit
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START CHARGING THE RECHARGEABLE BATTERIES
Once a rechargeable battery is inserted after the transformer has been plugged to the power
source, the battery voltage (for example, “1.39V”) will be displayed for 4 seconds. Then “200
mA Charge” (default mode) will be shown on LCD for another 4 seconds, indicating that
charging with 200 mA is to be started if no alternation in setting is made.
Within this 8-second time from inserting the batteries the user may first select the
operating mode by the MODE key. Press and hold the MODE button for 5 seconds.
Then within 8 seconds from the last key pressing, user may select the charging/
discharging current by pressing the CURRENT key.
Note:
• The mode key shall first be pressed and held for about 5 seconds to activate the
mode change. The subsequent pressing of the mode key will enable to toggle
between the “Charge”, “Discharge”, “Test” and “Refresh” mode.
• There is a 8-second time allowed for choosing further functions after each key
pressing. If no more key is pressed, the LCD will blink one time to indicate the end of
setting. Afterward, the current can no longer be changed during the process and the
selected mode will be undergone.
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After 8 seconds from no more keys
pressing, the LCD will blink once to
indicate the setting is confirmed and
the selected mode activated
During charging, the different displays- Charging current (in mA), Time elapsed (in hh:mm),
Terminal voltage (in V) and Accumulated capacities (in mAh or Ah) may be toggled and
selected by pressing the DISPLAY key (refer Table 4).
After the rechargeable battery is fully charged, “Full” sign will be shown on the display and
the user may take them out at this time. Or if the rechargeable batteries are kept placed in
the compartments, trickle charging will start. The trickle charging current is around 5% of the
selected charging current to keep the rechargeable batteries full.
“Full” sign is shown -The
battery is fully charge d
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Charging current: 200 mA
Charge Mode
Note :
z The current cannot be altered once the setting has been confirmed in the initial stage.
Therefore, the user can avoid changing the current setting accidentally while setting
up other rechargeable batteries. If one wants to change the applied current afterward,
the rechargeable ba tteries must be taken out an d inserted again.
z The maximum charging current of other rechargeable batteries is restricted by the
current setting of the first inserted rechargeable battery. For instance, if the first
inserted rechargeable battery is set to charge at 500 mA, then the second, third and
fourth rechargeable batteries can be only set to charging at a maximum current of 500
mA.
Therefore, the user is recommended to place the battery with the highest expected
charging current in Compartment 1 first. To release the restriction of setting charging
current, user shall take out all four rechargeable batteries from the charging unit.
z To change the operating mode during charging, one can press the MODE key (for
selecting all rechargeable batteries) or NUMBER key then MODE key (for selecting
an individual rechargeable battery). 8 seconds after the last key is pressed the LCD
will blink one time to indicate the end of changing.
z When overheating condition occurs (usually due to too high of a charging current
selected), the charging will be stopped immediately and the display will shown “000
mA”, the charging process will only resume once the temperature of the rechargeable
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batteries drops to a safe level. If overheat conditions continue to occur, the
rechargeable batteries shall be taken out to cool down and then cha rged at a lower
current.
z For a new rechargeable battery it is recommended to charge it with 200 mA current
for re-conditioning it from the long storage status.
DISCHARGE MODE
Discharge mode will first discharge the rechargeable battery then charge it. It is for removing
the memory effects of rechargeable batteries.
By pressing the MODE key within 8 seconds after inserting the rechargeable batteries, the
Discharge mode can be selected. (The mode key shall first be pressed and held for about 1
second to activate the mode change. The subsequent pressing of the mode key will enable
to toggle between the “Charge”, “Discharge”, “Test” and “Refresh” mode.)
When the battery is overheated the charging
ceases automatically. “000 mA” will be
displayed.
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Then user may also sele ct a d ifferent discharging current (see Table 2) by pressing the
CURRENT key, within 8 seconds after inserting the batteries. (The display will blink once to
indicate the setting has been confirmed and the current cannot be changed afterward.)
Note: The discharging current is always set to be half of the coming charging current
whose upper limit is 700 mA (see Table 2). Therefore user is recommended to carefully
select the discharging current so that the charging current afterward will not be too high.
Table 2. DISCHARGE MODE Current
User-selected Discharging
current
Thereafter Charging
current
Discharging current: 250 mA
Discharge Mode
100 mA 250 mA 350 mA
200 mA 500 mA 700 mA
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Finally batteries will be fully charged in discharge mode and “Full” will be displayed. If user
presses DISPLAY key at this time, "charge" icon instead of "discharge" icon will be displayed.
REFRESH MODE
Old rechargeable batteries and those have not been used for a long time require refreshing.
This process will recover the optimum capacity of the rechargeable batteries. By pressing
the MODE key within 8 seconds after inserting the rechargeable batteries, the Refresh mode
can be selected.
Refresh mode will start with discharging the rechargeable battery, then charging it. The
repeated discharging and charging cycles will be launched until no further increase in the
measured capacities is estimated.
Discharging current: 250 mA
Refresh mode (the battery is
being discharged)
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Note:
z By pressing the MODE key within 8 seconds after inserting the rechargeable
batteries, the Refresh mode can be selected. (The mode key shall first be pressed
and held for about 5 seconds to activate the mode change. The subsequent pressing
of the mode key will enable to toggle between the “Charge”, “Discharge”, “Test” and
“Refresh” mode.)
Then user may also select a different discharging current by pressing the CURRENT
key (see “Note” in Discharge mode and Table 2), within 8 seconds after inserting the
batteries. (Or the display will blink once to indicate the end of setting and the current
cannot be changed afterward.)
z It may take up to several days to finish the refreshing process, depending on the
selected discharging current.
z The maximum refresh current is 350 mA.
TEST MODE
In Test mode the rechargeable batteries will first be fully charge d and then discharged to
determine the capacities. Finally, the rechargeable batteries are charged up again and the
capacity in (mAh) of (Ah) will be estimated and shown after the discharging ends.
By pressing the MODE key within 8 seconds after inserting the rechargeable batteries, the
Test mode can be selected. (The mode key shall first be pressed and held for about 5
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seconds to activate the mode change. The subsequent pressing of the mo de key will enable
to toggle between the “Charge”, “Discharge”, “Test” and “Refresh” mode.)
Note:
z After selecting the Test mode, user may select a different charging current in the Test
mode by pressing the CURRENT key, within 8 seconds after the batteries are
inserted. The afterward-discharging current will be half of the selected charging
current (see Table 3).
Table 3. TEST MODE Current
User-selected Charging
current
Thereafter Discharging
current
The Charging
current in
(mA)
Test mode
200 mA 500 mA 700 mA
100 mA 250 mA 350 mA
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z The maximum charging current is 700 mA.
z After the test mode is finished, the display will shift between the “Full” sign and the
battery capacity (in mAh or Ah) automatically in 3-second intervals until the
rechargeable batteries are removed. User can switch to other displays by pressing the
DISPLAY key.
Battery capacity displayed in
(mAh) as the checking is
finished in Test mode.
TRICKLE CHARGING
After the rechargeable battery is fully charged in any of the operating modes, the charger will
give a small amount of current to the rechargeable batteries to maintain the fully charge d
level. This mode is automatically launched after rechargeable batteries are fully charged and
kept at the charging unit. The signal “Full” will be displayed on the LCD.
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DISPLAY MODE INFORMATION
User can use different display modes to monitor the rechargeable battery condition during
the different operations (see below figure and Table 4 to 7).
Different display modes are exhibited: Charging
current, Time, Voltage and Capacity
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Different operating modes
Table 4. Various displays in Charge Mode
Stage in Charge
mode
During charging Charging current
Full stage
Table 5. Various displays in Discharge Mode
Stage in
Discharge mode
During
discharging
During charging Charging current
Full stage
Various displays (toggled by pressing DISPLAY key)
Voltage (V) Current (mA) *Time (hh:mm)
Instantaneous
Battery voltage
Trickle charging
current
Various displays (toggled by pressing DISPLAY key)
Voltage (V) Current (mA) *Time (hh:mm)
Discharging
Instantaneous
Battery voltage
current
Trickle charging
current
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Charging time
elapsed
Discharging time
elapsed
Charging time
elapsed
Capacity
(mAh/ Ah)
Accumulated
capacity
Capacity
(mAh/ Ah)
Capacity during
discharging
Accumulated
capacity
Table 6. Various displays in Refresh Mode
Stage in
Refresh mode
During
discharging
processes
During charging
processes
Full stage
Various displays (toggled by pressing DISPLAY key)
Voltage (V) Current (mA) *Time (hh:mm)
Instantaneous
Battery voltage
Instantaneous
Battery voltage
Instantaneous
Battery voltage
Discharging
Charging current
Trickle charging
current
current
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Discharging time
elapsed
Charging time
elapsed
Elapsed time of
last discharging
Capacity
(mAh/ Ah)
Capacity during
discharging
Capacity
determined in
last time
discharging
Maximum battery
capacity
determined in
discharging
Table 7. Various displays in Test Mode
Stage in Test
mode
During charging Charging current
During
discharging
During 2nd
charging
Full stage
Note:
• *The timer will be resumed and counted from 00:00 again after the time elapsed is
longer than 20 hours. (For example, 1:45 will be shown after the battery has been
refreshed for 21 hr and 45 min.)
Various displays (toggled by pressing DISPLAY key)
Voltage (V) Current (mA) *Time (hh:mm)
Charging time
elapsed
Discharging time
elapsed
2nd charging
time elapsed
Discharging time
elapsed
Instantaneous
Battery voltage
Discharging
current
Charging current
Trickle charging
current
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Capacity
(mAh/ Ah)
“--- mAh”
“--- mAh”
Capacity of the
battery
determined in
discharging
Capacity of the
battery
determined in
discharging
• In case the power source is shortly interrupted or terminated when the charger is
being operated, the operational mode will automatically be set to “Charge mode at
200 mA” to charge up the battery once the power source is back to normal, regardless
of the operating mode (Charge, Discharge, Refresh or Test) which has been selected
by user before.
CARE AND MAINTENANCE:
z Extreme temperatures, vibration and shock should be avoided as these may cause
damage to the unit
z When cleaning the displays and casings, use a soft damp cloth only. Do not wet the
exposed metal part of the charging unit. Do not use solvents or scouring agents as
they may mark the LCD and casing.
z Do not spill water to the charging unit.
z Do not make any repair attempts to the units. Return it to its original point of purchase
for repair by a qualified engineer. Opening and tampering with the units may invalidate
its guarantee.
z Do not expose the unit to extreme and sudden temperature changes, this may lead to
damage to the electronic parts in the unit.
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SPECIFICATIONS:
Input voltage for AC/DC adapter : 100-240 VAC
Charging current range : 200 mA - 700 mA
Max charging capacity (capacity of rechargeable batteries) : 3000 mAh
Dimensions (L x H x W) of
Charging unit : 2.95” x 5.11” x 1.57”
(75 x 130 x 40 mm)
LIABILITY DISCLAIMER:
z The manufacturer and supplier cannot accept any responsibility for any improper or
incorrect use and any consequences occurred.
z Any performance of repairs or alternations by someone other than the original
supplier will invalidate the warranty.
z This product is only designed to be used by people who have read and understood
this instruction manual.
z The specifications of this product may change without prior notice.
z This product is not a toy. Keep out of the reach of children.
z No part of this manual may be reproduced without written consent of the manufacturer.
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WARRANTY
La Crosse Technology, Ltd provides a 1-year limited warranty on this product against
manufacturing defects in materials and workmanship.
This limited warranty begins on the original date of purchase, is valid only on products
purchased and used in North America and only to the original purchaser of this product. To
receive warranty service, the purchaser must contact La Crosse Technology, Ltd for problem
determination and service procedures. Warranty service can only be performed by a La
Crosse Technology, Ltd authorized service center. The original dated bill of sale must be
presented upon request as proof of purchase to La Crosse Technology, Ltd or La Crosse
Technology, Ltd’s authorized service center.
La Crosse Technology, Ltd will repair or replace this product, at our option and at no charge
as stipulated herein, with new or reconditioned parts or products if found to be defective
during the limited warranty period specified above. All replaced parts and products become
the property of La Crosse Technology, Ltd and must be returned to La Crosse Technology,
Ltd. Replacement parts and products assume the remaining original warranty, or ninety (90)
days, whichever is longer. La Crosse Technology, Ltd will pay all expenses for labor and
materials for all repairs covered by this warranty. If necessary repairs are not covered by this
warranty, or if a product is examined which is not in need or repair, you will be charged for
the repairs or examination. The owner must pay any shipping charges incurred in getting
your La Crosse Technology, Ltd product to a La Crosse Technology, Ltd authorized service
25
center. La Crosse Technology, Ltd will pay ground return shipping charges to the owner of
the product to a USA address only.
Your La Crosse Technology, Ltd warranty covers all defects in material and workmanship
with the following specified exceptions: (1) damage caused by accident, unreasonable use or
neglect (including the lack of reasonable and necessary maintenance); (2) damage occurring
during shipment (claims must be presented to the carrier); (3) damage to, or deterioration of,
any accessory or deco rative surface; (4) damage resulting from failure to follow instruc ti ons
contained in your owner’s manual; (5) damage resulting from the performance of repairs or
alterations by someone other than an authorized La Crosse Technology, Ltd authorized
service center; (6) units used for other than home use (7) applications and uses that this
product was not intended or (8) the products inability to receive a signal due to any source of
interference.. This warranty covers only actual defects within the product itself, and does not
cover the cost of insta l lation or removal from a fixed installation, n ormal set-up or
adjustments, claims based on misrepresentation by the seller or performance variations
resulting from installation-related circumstances.
LA CROSSE TECHNOLOGY, LTD WILL NOT ASSUME LIABILITY FOR INCIDENTAL,
CONSEQUENTIAL, PUNITIVE, OR OTHER SIMILAR DAMAGES ASSOCIATED WITH THE
OPERATION OR MALFUNCTION OF THIS PRODUCT. THIS PRODUCT IS NOT TO BE
USED FOR MEDICAL PURPOSES OR FOR PUBLIC INFORMATION. THIS PRODUCT IS
NOT A TOY. KEEP OUT OF CHILDREN’S REACH.
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This warranty gives you specific legal rights. You may also have other rights specific to your
State. Some States do no allow the exclusion of consequential or incidental damages
therefore the above exclusion of limitation may not apply to you.
For warranty work, tech nical support, or infor m ation contact:
La Crosse Technology, Ltd
2809 Losey Blvd. South
La Crosse, WI 54601
Phone: 608.782.1610
Fax: 608.796.1020
e-mail: support@lacrossetechnology.com
sales@lacrossetechnology.com
(information on other products)
web:www.lacrossetechnology.com
(warranty work)
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FAQ’s
What is the charger capacity?
Maximum charging capacity is 3000 mAh
My batteries are getting warm.
It is common for batteries to get warm will charging. The charger has a built in
temperature sensor which will stop the charging cycle if it has become too hot.
Charging may resume when the battery has cooled.
Allow batteries to cool before placing into a product to be used.
I cannot change modes.
Within 8 seconds of installing a battery, press and hold the MODE button for 5
seconds to change modes.
Why does my display flash a number?
Your station will flash when first plugged in. You’re a/c cord may be defective.
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What type of batteries can I charge?
NiMH (Nickel Metal Hydride) or NiCd (Nickel Cadium) rechargeable batteries
only may be used in this product. Charging other types of batteries may result
in failure of the charger.
My battery reads “Null”.
This charger requires at least .9v in the battery in order to charge it. If the
battery is depleted below that point, you will not be able to charge it on this
battery charger.
You may want to invest in a small charger/holder that will bring the battery back
above .9v when attached for 20-30 seconds. The battery can then be charged
in our charger.
Why do my new batteries not show full capacity?
Due to storage and shipping times, you should charge your batteries fresh out
of the package. All rechargeable batteries need to be used in a product “under
load”, then charged, used, charged, at least 5 times or more to reach full
capacity. Batteries sitting in storage may lose some charge over time.
It is not recommended to “condition” batteries until after they have bee charged
and used 10 times.
As you use your batteries they will gain greater capacity and last longer. It is
common for your batteries to run down quickly at first.
Storing batteries
Store between 40 and 80 degrees F. Do not refrigerate.
Batteries will self-discharge if left unused. If unused for 30-60 days they may
completely deplete of power after long storage.
NiMh batteries should be stored fully charged and recharged every 30 days to
keep in peak capacity.
NiCd batteries should be stored fully discharged.
Do not “store” batteries in the charger.
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All rights reserved. This handbook must not be reproduced in any form, even in excerpts, or
duplicated or processed using electronic, mechanical or chemical procedures without written
permission of the publisher.
This handbook may contain mistakes and printing errors. The information in this handbook is
regularly checked and corrections made in the next issue. We accept no liability for technical
mistakes or printing errors, or their consequences.
All trademarks and patents are acknowledged.
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