All 8 BatteryGuru sizes
Browse car key batteries by size.
If you already know the battery printed inside your key fob, choose it below. Not sure? Use the vehicle finder and we will guide you to the right match.
3V lithium coin cell
CR1616 Car Key Battery
A compact 3V coin battery for slim key fobs and smaller remotes.
View CR1616
3V lithium coin cell
CR1620 Car Key Battery
A thin replacement option used by many low-profile automotive remotes.
View CR1620
3V lithium coin cell
CR1632 Car Key Battery
Reliable power for select key fobs that need a compact but wider cell.
View CR1632
3V lithium coin cell
CR2016 Car Key Battery
A common choice for older remotes and stacked-cell key fob designs.
View CR2016
3V lithium coin cell
CR2025 Car Key Battery
A popular car key battery size with dependable 3V replacement power.
View CR2025
3V lithium coin cell
CR2032 Car Key Battery
One of the most common key fob batteries for modern vehicle remotes.
View CR2032
3V lithium coin cell
CR2354 Car Key Battery
A larger capacity option for remote designs that need a wider cell.
View CR2354
3V lithium coin cell
CR2450 Car Key Battery
A high-capacity 3V battery for larger key fobs and heavier-use remotes.
View CR2450