The car has been driving for some time, and the key of the display screen is low, indicating that the battery needs to be replaced. But searching through the small keys, there is not a screw, or turn on the switch to change the battery. But on closer inspection, we can see a slit in the side of the key. Now you can follow me to change the battery.
First, go to the stationery or supermarket to buy a good button battery, remember the model 2032. Get a pair of eyebrow tweezers (or a small flat-head screwdriver with a sharp edge).
With one side of the head of the eyebrow clamp, force into the gap at the bottom of the key, and then gently turn the eyebrow clamp to increase the gap.
Then, with a slight twist of the hand, the key breaks into two parts.
Pick up the half with the battery, insert the side of the eyebrow clamp into the bottom of the battery (directly with the hand mouth, difficult), the battery can be easily lifted. After removing the spent battery, press the new battery into the button battery position. Notice that the positive pole is down there.
After replacing the battery, install the two keys. Note that the head of the two keys, the part with the chip has a locking pin, and the part with the battery has a bayonet.
Secure the bayonet and lock pin, press gently, and the battery is replaced. (Note that if there is a sense of stagnation when pressing, you need to check whether the bayonet is tight.