What is the model number of car key batteries?
2 Answers
Car key battery models: CR2032, CR2025, CR2016H, CR1632H, CR1620H, CR1616H, CR2430H, CR2450H First remove the internal key: First, take out the internal mechanical key. Pry along the housing: Then use a pry tool or pry bar to pry along the gap of the car key housing. Separate the housing: After completely prying open the key housing, you can separate the housing. Replace the battery: At this point, you can see the chip and battery inside the remote key, and replace it with a battery of the same model.
I've driven several cars and have personally replaced the key fob battery each time it ran out. The most common model is CR2032, like the one used in my Volkswagen, which is easily available at supermarkets. Some cars, such as BMW or Hyundai, might use CR2025—make sure not to buy the wrong one; you can check the label after opening the key fob's back cover. The lifespan of a remote key is typically two to three years, depending on usage frequency. When replacing the battery, use a small screwdriver to gently pry it open, being careful not to crack the casing, as this could affect the anti-theft function. Doing it yourself is cheap and convenient, but remember to test the lock function afterward. There are video tutorials online, and checking the specific model of your car is more reliable.
