La Crosse Technology BC-9009U User manual

BC-9009 Battery Charger Instruction Manual Contents
Language Page
English 1
1
BC-9009U BATTERY CHARGER - TABLE OF CONTENTS
Topic Page
Features 3
Inventory Of Contents 4
Function Keys 5
Operating Modes
Charge Mode 8
Discharge Mode 16
Refresh Mode 18
Test Mode 19
Trickle Charge 22
Display Mode Information 22
The Size C and D BatteryAdapter 29
Care and Maintenance 30
Specification 31
Warranty Information 32
Troubleshooting 36
2
BATTERY CHARGER BC-9009U
Instruction Manual
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 a journey.
The Charging unit
3
CAUTIONS:
1. The charger is restricted to charging NiCd and NiMH rechargeable batteries only.
Never use this charger for other types of batteries such as alkaline, lithium, carbon zinc
or other types that are not specified.
2. The charging unit should only be used 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 use 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 a high
charging current is chosen). User should 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
Charging rechargeable batteries in various currents (200, 500, 700 or 1000 mA). The

4
charging current can be set up to 1500 or 1800 mAh when two batteries are charged.
Fast charging – 70 mins to charge up 2000 mAh batteries
Individual LCD display for all compartments
Charging both “AA” and “AAA” rechargeable batteries simultaneously
Overheat detection to protect rechargeable batteries from over-charging
Minus delta voltage (-dV) detection for charge termination
Damaged batteries detection
Discharge mode (first discharging and then charging) to remove memory effect of
rechargeable batteries
Refreshing old rechargeable batteries by discharging/ charging cycles
Test function to check the capacities of rechargeable batteries
Charging/ Discharging functions can be launched independently and simultaneously to
each rechargeable battery in the compartments
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)
INVENTORY OF CONTENTS
1. Charging unit
5
2. Transformer
3. Size “C” battery adapter & Size “D” battery adapter (Total of 4Adapters)
4. Holding Bag
5. “AA” rechargeable battery (4) & “AAA” rechargeable battery (4)
6. Instruction Manual
FUNCTION KEYS:
There are three easy-to-use function keys and four number keys on the charging unit:
Compartment
Number keys
DISPLA
Y
MODE key
CURRENT ke
y
6
Compartment Number key
Press and release the Number key to select a particular battery compartment for charge
modes and/or display mode adjustment.
MODE key
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 toggle between the “Charge”, “Discharge”,
“Test” and “Refresh” mode. To change the operating mode for an individual rechargeable
battery, first press the corresponding NUMBER key then press the MODE key.
DISPLAY key
Press and release to select the displays of the charging current (in mA), time elapsed (in
hh:mm), the terminal voltage (in V) and accumulated capacities (in mAh orAh) during the
charging or discharging process.
To change the display content of a particular rechargeable battery, first press the
corresponding NUMBER key then press the DISPLAY key.
7
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 the rechargeable battery (CHARGE) – to charge the rechargeable battery,
automatically switches to trickle charge after the rechargeable battery is full.
b. Discharge then charge the rechargeable battery (DISCHARGE) – to discharge the
rechargeable battery then charge it to minimize 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 repeatedly
until no further increase in the capacity is estimated. For old rechargeable batteries or
those have not been used for a long time, refreshing may bring the rechargeable
battery back to the optimum condition.
d. Check the rechargeable battery capacity in mAh/ Ah (TEST)

8
CHARGE MODE
Charging at 200 mA is the default-operating mode of the charging unit.
When only one or two rechargeable batteries are charged, provided that only compartment 1
and compartment 4 are used, a charging current up to 1500 or 1800 mA may be set by the
pressing the CURRENT key.
On the other hand, when charging three or four rechargeable batteries at the same time, user
may select a charging current of 200, 500, 700 or 1000 mA.
When charging two batteries at
compartment 1 & 4 – max.
charging current: 1800 mA
When charging two batteries at
compartment 1 & 2 – max.
charging current: 1000 mA
9
The estimated time of charging by various charging current is tabulated in Table 1.
When charging four batteries –
max. charging current: 1000 mA
When charging two batteries at
compartment 2 & 3 – max.
charging current: 1000 mA
10
Table 1. Charging Time with various charging current
Size of battery Battery Capacity Charging current selected
(mA) Estimated charging time
AA 2600 mAh
1800 ~80 min
1500 ~100 min
1000 ~2 hr 30 min
700 ~3 hr 30 min
500 ~5 hr
200 ~12 hr
AA 2000 mAh
1800 ~70 min
1500 ~80 min
1000 ~2 hr
700 ~3 hr
500 ~4 hr
200 ~10 hr
AAA 1000 mAh 700 ~70 min
500 ~1 hr 40 min
11
200 ~4 hr
Note:
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.
It may be necessary to charge and discharge the new rechargeable batteries several
times in the beginning before the optimum capacity of the rechargeable batteries can
be obtained. It is recommended to use the "Refresh" mode for new rechargeable
batteries in order to achieve the optimum battery capacity.
When the transformer has been plugged into the power source, the version number of
the charger (for example “33” ) 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 into the charging unit, the charger will also show “null” on LCD.
“null” displayed - No battery or damaged battery is
p
laced to the charging unit

12
START CHARGING THE RECHARGEABLE BATTERIES
Once a rechargeable battery is inserted after the transformer has been plugged into 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 alteration 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. “Charge”, “Discharge”, “Refresh” and “Test” mode
may be chosen.
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 1 second to activate the mode
change. The subsequent pressing of the mode key will toggle between the “Charge”,
“Discharge”, “Test” and “Refresh” mode.
There is an 8-second time allowed for choosing further functions after each key
pressing. If no more keys are pressed, the LCD will blink one time to indicate the end of
13
setting. Afterward, the current can no longer be changed during the process and the
selected mode will begin.
Charging current: 200 mA
Charge Mode
A
fter 8 seconds from the last key
p
ress, the LCD will blink once to
indicate the setting is confirmed and
the selected mode is activated
14
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” will be shown on the display and the user
may take out them at this time. If the rechargeable batteries are left in place 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.
15
Note :
The current cannot be altered once the setting has been confirmed in the initial stage.
This prevents the user from changing the current setting accidentally while setting other
rechargeable batteries. If one wants to change the applied current afterward, the
rechargeable batteries must be taken out and inserted again.
The maximum charging current of the 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 700 mA, then the second, third and
“Full” sign is shown -The battery
is fully charged

16
fourth rechargeable batteries can be only set to charging at a maximum current of 700
mA.
Therefore, the user is advised to place the battery with the highest expected charging
current in Compartment 1 first. To release the restriction of setting charging current,
user must take out all four rechargeable batteries from the charging unit.
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
individual rechargeable battery). 8 seconds after the last key press the LCD will blink
one time to indicate the end of changing.
When overheating conditions occur (over about 127°F (53°C)), usually due to too high
a charging current selected), the charging will be stopped immediately and the display
will read “000 mA”, the charging process will only resume once the temperature of the
rechargeable batteries drops to a safe level. If overheating conditions continue to
occur, the rechargeable batteries must be taken out to cool down and then charged at
a lower current.
When the battery is overheated the
charging will cease automatically. “000
mA” will be displayed. 17
For a new rechargeable battery it is recommended to charge it with 200 mA current to
re-condition 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. Then the user may also select different 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.)
Discharging current: 250 mA
Discharge Mode
18
Note:
The discharging current is always set to be half of the coming charging current whose
upper limit is 1000 mA (see Table 2). Therefore the user is recommended to carefully
select the discharging current so that the charging current afterward will not be too
high.
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 toggle between the “Charge”,
“Discharge”, “Test” and “Refresh” mode.
Table 2. DISCHARGE MODE Current
User-selected Discharging
current 100 mA 250 mA 350 mA 500 mA
Thereafter Charging
current 200 mA 500 mA 700 mA 1000 mA
Finally, batteries will be fully charged in discharge mode and “Full” will be displayed. If the
user presses the DISPLAY key at this time, "charge" icon instead of "discharge" icon will be
19
displayed.
REFRESH MODE
Old rechargeable batteries and those that 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.
Refresh mode (the battery is
being discharged)
Discharging current: 250 mA