La Crosse Technology BC-1000U Instruction Manual page 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 current setting of the first charging compartment restricts the maximum charging

current of the other rechargeable batteries. For instance, if the first compartment
rechargeable battery is set to charge at 700 mA, then the second, third and fourth
rechargeable batteries can be only set to charging at a maximum current of 700 mA.
"Full" sign is shown -The battery
is fully charged
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