Mazda Mazda2 key fob battery
2 of the 4 model years listed for the Mazda Mazda2 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.
- 2011Flip key
CR1620
FCC ID BGBX1T478SKE125-01Owner's manual: fitness.manualsonline.com and manua.ls (checked Nov 2, 2026)
Manual text: “Replace only with the same type battery (CR1620 or equivalent).”
Find CR1620 on Amazon - 2012Flip key
Not confirmed yet
- 2013Flip key
CR1620
FCC ID BGBX1T478SKE125-01Owner's manual: mazdausa.com and americankeysupply.com (checked Nov 1, 2026)
Manual text: “Replace only with the same type battery (CR1620 or equivalent).”
Find CR1620 on Amazon - 2014Flip key
Not confirmed yet
Changing the battery
Flip key
- Swing the key blade open first. On most flip keys the cell lives in the body behind the hinge.
- Look along the edge for a notch. A coin turned in that notch usually separates the remote half from the blade half.
- Lift the cell out with a plastic tool and press in the new one with the + side matching.
- Clip the body closed, fold the blade, and test the buttons from a few steps away.
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.
If a child might have swallowed a coin cell, treat it as an emergency and get to a hospital right away.