Ford S-Max key fob battery (2021–2023): CR2032 or CR2450
It depends on the key: type 2 key (press buttons on edges to release cover) takes one CR2032; type 1 key (push release button, key blade pulls out) takes one CR2450.
Type 2 key (press buttons on edges to release cover)
CR2032× 13V lithium coin cell
Also sold as DL2032, ECR2032, KECR2032, 5004LC · CR2032 details
Source: Ford S-Max owner's manual
Type 1 key (push release button, key blade pulls out)
CR2450× 13V lithium coin cell
Also sold as DL2450, 5029LC, KECR2450, CR2450N · CR2450 details
Source: Ford S-Max owner's manual
Before you swap it
- CR2016 and CR2025 are the same 20 mm width as a CR2032 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.
- Note which way up the old cell sits before you take it out. Fitted upside down, the key won't work at all.
Quick answers
What battery does the Ford S-Max key (2021–2023) take?
Type 2 key (press buttons on edges to release cover): one CR2032 3V lithium coin cell. Type 1 key (push release button, key blade pulls out): one CR2450 3V lithium coin cell.
Is DL2032 the same as CR2032?
Yes. DL2032 is CR2032, and DL2450 is CR2450: same cells, other names.
Will a CR2025 fit instead of a CR2032?
No. It's the same 20 mm width but 2.5 mm thick, against 3.2 mm for a CR2032. Use a CR2032.