Mazda MX-5 key fob battery (2015–2018): CR2025
The Mazda MX-5 key fob (2015–2018) takes one CR2025 3V lithium coin cell.
CR20253V
CR2025× 13V lithium coin cell
Also sold as DL2025, ECR2025, KECR2025 · CR2025 details
Source: Mazda MX-5 owner's manual
Before you swap it
- CR2016 and CR2032 are the same 20 mm width as a CR2025 but a different thickness, so read the code on the old cell before you order, because a cell that's too thin can lose contact every time the fob gets knocked.
- Car still ignoring the fob after a new cell? Check it went in the right way up. The + side usually faces the marking inside the case.
Quick answers
What battery does the Mazda MX-5 key (2015–2018) take?
One CR2025 3V lithium coin cell.
Is DL2025 the same as CR2025?
Yes. DL2025, ECR2025 and KECR2025 are all the same cell as CR2025, sold under another name.
Will a CR2032 fit instead of a CR2025?
No. It's the same 20 mm width but 3.2 mm thick, against 2.5 mm for a CR2025. Use a CR2025.