Is CR2032 the same as DL2032?

Yes. DL2032 is Duracell's name for the CR2032 and ECR2032 is Energizer's. All three are 20 × 3.2 mm lithium cells at 3 volts. A BR2032 is the same size with a different lithium chemistry and delivers less current.

Can I use a CR2025 instead of a CR2032?

No. Both are 20 mm across, but the CR2025 is 2.5 mm thick and the CR2032 is 3.2 mm. A thinner cell won't press against the contacts, so the watch won't run reliably.

How long does a CR2032 battery last?

It holds about 210–240 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.

CR2032 battery equivalents

The CR2032 is a 20 × 3.2 mm 3-volt lithium cell, used in some digital watches, car key fobs, computer motherboards and Apple AirTags. It's sold under several names: DL2032, ECR2032, BR2032.

CR2032 (20 × 3.2 mm) from the top and the side, to scale with a US dime (17.9 mm).

Equivalents

Sold as	Type	In a watch
CR2032, DL2032, ECR2032	Lithium manganese dioxide, 3 V	Same battery under brand prefixes
BR2032	Lithium carbon monofluoride, 3 V	Fits; 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 CR2032 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.

Find the closest shops to you. Your location stays in your browser.

Questions

Is CR2032 the same as DL2032?: Yes. DL2032 is Duracell's name for the CR2032 and ECR2032 is Energizer's. All three are 20 × 3.2 mm lithium cells at 3 volts. A BR2032 is the same size with a different lithium chemistry and delivers less current.
Can I use a CR2025 instead of a CR2032?: No. Both are 20 mm across, but the CR2025 is 2.5 mm thick and the CR2032 is 3.2 mm. A thinner cell won't press against the contacts, so the watch won't run reliably.
How long does a CR2032 battery last?: It holds about 210–240 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.