Watch Almanac

CR2025 battery equivalents

The CR2025 is a 20 × 2.5 mm 3-volt lithium cell, used in digital watches and car key fobs. It's sold under several names: DL2025, ECR2025, BR2025.

+US dime20 mm2.5 mm thick
CR2025 (20 × 2.5 mm) from the top and the side, to scale with a US dime (17.9 mm).

Equivalents

Sold asTypeIn a watch
CR2025, DL2025, ECR2025Lithium manganese dioxide, 3 VSame battery under brand prefixes
BR2025Lithium carbon monofluoride, 3 VFits; lower current, so it can struggle with a backlight or alarm

Look-alikes that won't fit

These are also 20 mm across, so they look right in the pack, but the thickness is different. They aren't substitutes.

Getting a CR2025 changed

Watch shops in our directory list battery changes from $4.99 to $115, with a median of $15, usually done while you wait. A shop has the tools to open a screw-down caseback without marking it, and can replace the gasket and pressure-test a water-resistant watch. 455 shops in the directory list battery replacement. To do it yourself, follow how to change a watch battery.

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Questions

Is CR2025 the same as DL2025?
Yes. DL2025 is Duracell's name for the CR2025 and ECR2025 is Energizer's. All three are 20 × 2.5 mm lithium cells at 3 volts. A BR2025 is the same size with a different lithium chemistry and delivers less current.
Can I use a CR2032 instead of a CR2025?
No. Both are 20 mm across, but the CR2032 is 3.2 mm thick and the CR2025 is 2.5 mm. A thicker cell won't let the caseback or holder close, so the watch won't run reliably.
How long does a CR2025 battery last?
It holds about 150–170 mAh. In a digital watch that's usually two to five years, less with heavy use of the light or alarm. Lithium coin cells keep for up to ten years unused.