# Operating the Multi Charger

The mains voltage must match the voltage stated on the type plate of the charger.

1. Connect the charger to the mains power.

   The charger conducts a self-test. Both LEDs glow for one second. The charger then enters standby mode. The red LED turns off, and the green LED starts to flash at 5-second intervals.

2. Slide the battery on the battery holder of the charger. Charging starts automatically and the green LED flashes. The charging time depends on the battery's charge level, capacity, and temperature.

   When the battery is fully charged, the green LED glows. The charger automatically switches to retention charging.

New batteries reach their full capacity after approximately five charging/discharging cycles. Recharge batteries if they have not been used for a long time. The performance of the battery reduces when temperature falls below –10°C. Storing a battery for a long time at temperatures above 40°C can reduce the capacity.

## Sleep Mode

If a battery is completely drained, it will go into sleep mode.

Wake up the battery by doing the following:

1. Insert the battery in the charger.

   The charger will automatically detect that the battery is in sleep mode. The red and green LEDs of the charger start to flash, indicating that wake-up mode is activated.

2. When the charger stops flashing, remove and reattach the battery immediately.

   The charger will resume with the regular charging procedure.