What is the battery model for Mazda car keys?

[ValerieMarie]

Mazda different models use different key battery models. For example, the Mazda CX-4 key battery model is CR2025. Other relevant battery models and battery replacement methods are as follows: Other relevant battery models: Depending on the vehicle type, the battery models used for car keys also vary. Common battery models include the following: CR2302, CR2450, CR1616, CR2025, CR1620, etc. The battery model can be seen on the back of the battery. Battery replacement method: When replacing the battery, first open the key. Use a flat-head screwdriver to pry open the key along the surrounding gap. Once the key is opened, you can see the internal circuit board and the battery inside. Then remove the old battery, replace it with a new one, and reassemble the casing.