Mitsubishi i-MiEV key fob battery
1 of the 6 model years listed for the Mitsubishi i-MiEV have a proven battery. The most common answer is CR1620. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 2012-2013Key-head remote
Not confirmed yet
- 2014Key-head remote
CR1620
FCC ID OUCG8D-625M-ATwo sites agree: americankeysupply.com and energizer.com (checked Nov 2, 2026)
Find CR1620 on Amazon - 2015Unknown
Not confirmed yet
- 2016Unknown
Not confirmed yet
- 2017Unknown
Not confirmed yet
Changing the battery
Key with remote in the head
- Here the key blade and remote are one piece. You open the plastic head, not the blade.
- Many key heads split along the side seam. Start at the small notch and pry a little at a time.
- Replace the cell with the same face showing, and make sure the rubber keypad sits flat before closing.
- Press the head together until it clicks and test the buttons. The transponder chip that lets the car start is separate from the battery, so starting should not change.
A CR1620 is 16 mm across and 2.0 mm thick. It is easy to confuse with the 20 mm CR20xx sizes, which will not fit.
Keep spare coin cells away from small children. A swallowed coin cell can burn the throat within hours; if it happens, go to an emergency room at once.