# Battery

## Inserting/Changing the Batteries

Alkali-manganese batteries are recommended for the laser receiver.

1. Turn the locking mechanism (67) of the battery compartment cover into position (e.g. using a coin).
2. Open the battery compartment cover (66) and insert the batteries.

When inserting the batteries, ensure that the polarity is correct according to the illustration on the inside of the battery compartment.

Always replace all the non-rechargeable batteries at the same time. Only use non-rechargeable batteries from the same manufacturer and which have the same capacity.

1. Close the battery compartment cover (66) and turn the locking mechanism (67) of the battery compartment cover into position .

The battery indicator (r) shows the state of charge of the batteries of the laser receiver:

Indicator | Capacity
--- | ---
| 50 − 100%
| 5 − 50%
| 2 − 5%
| 0 − 2%

- Take the batteries out of the laser receiver when you are not using it for a prolonged period of time. The batteries can corrode during prolonged storage in the laser receiver.

## Rotary Laser Battery Charge Indicator

The battery charge indicator (j) shows the state of charge of the battery pack/batteries of the rotary laser, provided that the rotary laser is switched on and a Bluetooth® connection has been established between the laser receiver and the rotary laser.

Indicator | Capacity
--- | ---
| 60 − 100%
| 30 − 60%
| 5 − 30%
| 0 − 5%