First-time use/charging batteries
• The batteries must be charged before using them for the first time because they are delivered with an energy content as low as possible.
• The permissible temperature range for charging is from 0 °C to +40 °C/ +32 °F to +104 °F. For optimal charging, we recommend charging the batteries at a low ambient temperature of +10 °C to +20 °C/+50 °F to +68 °F if possible.
• It is normal for the battery to become warm during charging. Using the chargers recommended by Leica Geosystems, it is not possible to charge the battery once the temperature is too high.
• For new batteries or batteries that have been stored for a long time (> three months), it is effectual to make a discharge/charge cycle
• For Li-Ion batteries, a single discharge/charge 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.
Operation/discharging
• The batteries can be operated from −20 °C to +55 °C/−4 °F to +131 °F.
• Low operating temperatures reduce the capacity that can be drawn; high operating temperatures reduce the service life of the battery.
Exchanging the Batteries
Insert and remove the exchangeable batteries
- Open the battery compartment.
- Remove the left battery from the battery compartment by pushing the upper red button to the right. Remove the right battery from the battery compartment by pushing the lower red button to the left.
- Insert the new batteries into the battery compartment.
- Close the battery compartment.
- Turn on the instrument to start the boot process.