La Crosse Technology RS-900 Instruction Manual page 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 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 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)
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