CR2025 battery size
20 × 2.5 mm
3 V · Lithium · Coin cell · also sold as DL2025, BR2025
About the CR2025
The same 20 mm diameter as a CR2032 and 0.7 mm thinner, which is the whole difference. It usually fits a CR2032 holder and rattles; a CR2032 in a CR2025 holder often will not close. Capacity is about 160 mAh against 225, so it is a downgrade rather than an equal.
The numbers
| Diameter | 20 mm · 0.79 in |
| Thickness | 2.5 mm · 0.10 in |
| Nominal voltage | 3 V |
| Chemistry | Lithium |
| Other names | DL2025, BR2025 |
Same diameter, different thickness
These are the cells most often confused with a CR2025, because they are exactly as wide and only differ in one dimension.
| Cell | Diameter | Thickness | vs CR2025 |
|---|---|---|---|
| CR2032 | 20 mm | 3.2 mm | +0.7 mm |
| CR2016 | 20 mm | 1.6 mm | -0.9 mm |
Other coin cell sizes
| Cell | Size | Voltage |
|---|---|---|
| CR2032 | 20 × 3.2 mm | 3 V |
| CR2016 | 20 × 1.6 mm | 3 V |
| CR2450 | 24 × 5 mm | 3 V |
| CR1220 | 12 × 2 mm | 3 V |
| CR1620 | 16 × 2 mm | 3 V |
| CR1632 | 16 × 3.2 mm | 3 V |
| LR44 | 11.6 × 5.4 mm | 1.5 V |
| LR41 | 7.9 × 3.6 mm | 1.5 V |
| LR1130 | 11.6 × 3.1 mm | 1.5 V |
Frequently asked questions
What size is a CR2025 battery?
20 mm across and 2.5 mm thick — 0.79 × 0.10 inches.
What voltage is a CR2025?
3 V (Lithium).
What do the numbers in CR2025 mean?
They are the size. 20 is the diameter in millimetres and 25 is the thickness in tenths of a millimetre — so CR2025 is 20 mm by 2.5 mm. The rule holds for every coin cell and every lithium-ion cylinder named this way.
Can I use a CR2032 instead of a CR2025?
They are the same diameter, 20 mm, and different thicknesses: 2.5 mm against 3.2. A CR2032 is thicker and often will not let the compartment close. Same voltage, so nothing is damaged by trying.