How Long Does A Fob Battery Last. It transmits the signal when you press the button to open the door. I usually get low battery nuisance messages around the 18 month mark and then it keeps working for quite a while after that.
The battery may last for 2-3 years in a smart key fob. The battery is a primary battery not rechargeable. Click to see full answer.
Similarly you may ask how much does it cost to replace a car key battery.
A key fob battery will usually last around three to four years before it will need to be replaced. For that reason many manufacturers recommend a replacement schedule of five years. The batteries in the fobs are still the original still work perfectly. The battery life is about 2 years.
