How Often Should the Remote Key Battery Be Replaced?

1 Answers
OJune
07/25/25 4:09am
Generally, the lifespan of a car remote key battery is about 2-3 years, depending on the frequency of use, and it varies among different car models, making it difficult to determine an exact replacement time. When the control distance of the car key is less than half of the maximum remote distance, or less than about six meters, the battery should be replaced promptly. Here are several signs that indicate the car key is running out of power: 1. Reduced effective range of the car key remote: Previously, the car door could be unlocked within a distance of 6 meters, but when the key is low on battery, you need to get closer to the car, even right next to the door, for it to respond. This indicates that the car key is about to run out of power. 2. When remotely unlocking the car door: If the remote control sometimes works and sometimes doesn’t, or requires multiple presses to respond, it means the car key is running out of power. 3. Indicator light on the car key: If the brightness of the indicator light on the car key is noticeably dimmer than usual, or if it flickers, it indicates that the car key is running out of power, and the battery should be replaced as soon as possible.
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