Leica GKL221 User Manual page 51

Refreshing the battery
2-9
The refresh function totally discharges the battery and then puts it on quick charge.
Step Description
1. Connect the charger to the power supply.
2. Insert the battery. The yellow status indicator flashes to indicate that the battery has been
recognized.
3. Press the selection button for more than three seconds to start the process of discharging
the battery. Discharging is indicated by the red status indicator flashing.
Discharging may take a long time for large capacity batteries. To keep discharge
times short, only use this function with batteries that are empty or low on charge.
4. When the battery has been discharged, it is put on quick charge. The status indicator lights
up green.
5. The battery has been completely charged when the green status indicator starts to flash.
We recommend refreshing NiCd and NiMH batteries two to three times when their capacity
starts to sink noticeably.
For Li-Ion batteries, a single discharging and charging cycle is sufficient. We recommend
carrying out the process when the battery capacity indicated on the charger or on a Leica
Geosystems product deviates significantly from the actual battery capacity available.
GKL221 Operation