La Crosse Technology BC-1000U Instruction Manual page 16

Therefore, 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 a high

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 charge at a lower
current.
When the battery is overheated the
charging will cease automatically. "000
mA" will be displayed.
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