How Often Should Car Key Batteries Be Replaced?

[StRowan]

Button batteries should be replaced at most every one and a half years, while cylindrical two-way remote batteries need replacement every six months. Different batteries have different lifespans: Generally, different types of batteries require replacement at varying intervals. If the car owner uses button batteries, it is best to keep one or two spare batteries in the car. However, if no spares are prepared, it is not a big issue, as the owner will be aware in advance when the battery is running low. Usage frequency affects lifespan: Additionally, the replacement timing of car key batteries also depends on the frequency of use by the owner. For example, if the owner frequently uses the key, there is a higher likelihood of needing to replace the battery sooner.