Traditional Culture Encyclopedia - Hotel franchise - How to change batteries for all locks?

How to change batteries for all locks?

The specific steps are as follows: 1. First, find the panel in the door lock and unscrew it with a screwdriver.

2. At this time, you can take out the four No.5 batteries inside and look at the battery placement direction.

3. Put four new batteries in the original direction.

4. Install the panel and tighten it with a screwdriver, then you can hear the sound of electricity.