CR1632 battery size
16 × 3.2 mm
3 V · Lithium · Coin cell · also sold as DL1632, BR1632
About the CR1632
The same 16 mm diameter as a CR1620 and 1.2 mm thicker, holding roughly twice as much. As with the 2016 and 2032 pair, the last two digits are the only difference and they are the thickness.
The numbers
| Diameter | 16 mm · 0.63 in |
| Thickness | 3.2 mm · 0.13 in |
| Nominal voltage | 3 V |
| Chemistry | Lithium |
| Other names | DL1632, BR1632 |
Same diameter, different thickness
These are the cells most often confused with a CR1632, because they are exactly as wide and only differ in one dimension.
| Cell | Diameter | Thickness | vs CR1632 |
|---|---|---|---|
| CR1620 | 16 mm | 2 mm | -1.2 mm |
Other coin cell sizes
| Cell | Size | Voltage |
|---|---|---|
| CR2032 | 20 × 3.2 mm | 3 V |
| CR2025 | 20 × 2.5 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 |
| 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 CR1632 battery?
16 mm across and 3.2 mm thick — 0.63 × 0.13 inches.
What voltage is a CR1632?
3 V (Lithium).
What do the numbers in CR1632 mean?
They are the size. 16 is the diameter in millimetres and 32 is the thickness in tenths of a millimetre — so CR1632 is 16 mm by 3.2 mm. The rule holds for every coin cell and every lithium-ion cylinder named this way.
Can I use a CR1620 instead of a CR1632?
They are the same diameter, 16 mm, and different thicknesses: 3.2 mm against 2. A CR1620 is thinner, so it may rattle or lose contact, and it holds less. Same voltage, so nothing is damaged by trying.