How Long Car Remote Battery Last. The battery which has a life of roughly one-to-two years under normal use is warrantied for one year from the date of purchase to the original owner. Once the voltage gets to a certain point the warning light will illuminate on the dash to let you know to replace the batteries.

Mine is a 2025. There is always some drain as the remote has to scan the buttons for any press. One may also ask how long does a garage door opener remote last.
You can check the remotes battery level by doing the following.
This isnt ideal and as such we recommend the majority of customers not just the enthusiasts purchase a. Key fob batteries should be replaced every three or four years although this will vary based on their amount of use and build quality. Just like a television remote the performance of the fob will diminish. In the case of the later HPI charger with its 95v 330mA output fully charging a 72V 3300mAh battery would take 10 hours thus this type of charger is often referred to as an overnight one.
