Illustration of how to replace the fingerprint lock battery

How to change the battery of fingerprint lock: there is a panel inside the lock, and unscrew the panel with a screwdriver. Take out the four No.5 batteries in it, and we will put four new batteries in it, install the panel and tighten it with a screwdriver. At this time, we will hear the sound of power connection.

When the power of the fingerprint lock is too low, the fingerprint lock will prompt you in time to remind you to replace the battery quickly. Fingerprint lock products will give a low-voltage alarm when you open the door 50 times or 100 times every time you use the fingerprint lock, until you replace the battery or the battery is completely exhausted. When the fingerprint lock is out of power and it is impossible to buy an external power supply, if there is a mechanical key, you can temporarily open the door with the mechanical key.

Precautions:

Old and new batteries can't be mixed. In fact, to put it bluntly, the old battery should be thrown away when it is used up, and it has nothing to do with the new battery. Because the old battery is used at a voltage lower than the standard voltage, it will leak because of the chemical reaction inside, and the liquid in the battery is very corrosive, which is easy to corrode the components of the fingerprint lock circuit board, resulting in poor contact or power failure of the fingerprint lock.

Positive and negative poles should be correct, which is actually a relatively simple point. Anyone who has installed a battery knows that the smooth side of the battery faces the spring, and then the bump is put into the battery box with a gentle press. However, some fingerprint lock battery boxes have a capacity of 8 batteries, but only 4 batteries can work normally. This installation requires all four parts to be installed in one place, thus forming a cycle.