# Operation with Non-Rechargeable Batteries

To switch from a lithium-ion battery pack (9) to non-rechargeable batteries, remove the lithium-ion battery pack (9).

It is recommended that you use alkaline manganese batteries to operate the measuring tool.

Insert the non-rechargeable batteries.

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

Insert the battery compartment cover (12) and let it click into place.

If the non-rechargeable batteries are running low, the laser lines will flash slowly for approx. 1 min.
If the non-rechargeable batteries are empty, the laser lines will flash quickly for approx. 10 s, then the measuring tool will switch off.

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

- Take the batteries out of the measuring tool when you are not using it for a prolonged period of time. The batteries can corrode and self-discharge during prolonged storage in the measuring tool.