Chart
Coin cell sizes
A CR coin is a lithium/manganese dioxide primary cell. Panasonic's industrial catalog shows how the number is built: C is that chemistry, R means round, the next two digits are the diameter in millimetres, and the last two are the height in tenths of a millimetre. CR2032 is a 20 mm cell, 3.2 mm thick. CR2025 is the same diameter and 2.5 mm thick. CR2016 is 1.6 mm thick. The voltage does not change with the thickness. Energizer's CR2032 and CR2025 sheets both print a nominal 3.0 V, and Panasonic's standard CR line does too. What changes is how much lithium fits in the can, and whether the cell can reach the contact spring.
CR codes read as diameter, then height in tenths of a millimetre. Panasonic's catalog states that rule for the CR series. BR cells of the same four-digit size share the outline and the nominal 3 V, and use the graphite-fluoride cathode. The outlines in the first column share one scale across this page.
| Outline | Code | Chemistry | Voltage | mm | mAh on the cited sheet |
|---|---|---|---|---|---|
 | CR1025 | Lithium manganese dioxide coin | 3 V | 10 × 2.5 mm | Panasonic 30 |
 | CR1216 | Lithium manganese dioxide coin | 3 V | 12.5 × 1.6 mm | Panasonic 25, Energizer 25, Renata 30 |
 | CR1220 | Lithium manganese dioxide coin | 3 V | 12.5 × 2 mm | Panasonic 35, Energizer 37, Renata 40 |
 | CR1616 | Lithium manganese dioxide coin | 3 V | 16 × 1.6 mm | Panasonic 55, Energizer 60, Renata 50 |
 | CR1620 | Lithium manganese dioxide coin | 3 V | 16 × 2 mm | Panasonic 75, Energizer 81, Renata 68 |
 | CR1632 | Lithium manganese dioxide coin | 3 V | 16 × 3.2 mm | Panasonic 140, Energizer 130, Renata 137 |
 | CR2012 | Lithium manganese dioxide coin | 3 V | 20 × 1.2 mm | Panasonic 55 |
 | CR2016 | Lithium manganese dioxide coin | 3 V | 20 × 1.6 mm | Panasonic 90, Energizer 100 |
 | CR2025 | Lithium manganese dioxide coin | 3 V | 20 × 2.5 mm | Panasonic 165, Energizer 170 |
 | CR2032 | Lithium manganese dioxide coin | 3 V | 20 × 3.2 mm | Panasonic 225, Energizer 235 |
 | CR2330 | Lithium manganese dioxide coin | 3 V | 23 × 3 mm | Panasonic 265 |
 | CR2354 | Lithium manganese dioxide coin | 3 V | 23 × 5.4 mm | Panasonic 560 |
 | CR2412 | Lithium manganese dioxide coin | 3 V | 24.5 × 1.2 mm | Panasonic 100 |
 | CR2450 | Lithium manganese dioxide coin | 3 V | 24.5 × 5 mm | Panasonic 620, Energizer 620, Renata 540 |
 | CR2477 | Lithium manganese dioxide coin | 3 V | 24.5 × 7.7 mm | Panasonic 1000, Renata 950 |
 | CR3032 | Lithium manganese dioxide coin | 3 V | 30 × 3.2 mm | Panasonic 500 |
 | CR1225 | Lithium manganese dioxide coin | 3 V | 12.5 × 2.5 mm | Renata 48, Energizer 50 |
 | CR2320 | Lithium manganese dioxide coin | 3 V | 23 × 2 mm | Renata 150, Energizer 135 |
 | CR2325 | Lithium manganese dioxide coin | 3 V | 23 × 2.5 mm | Renata 190 |
 | CR2430 | Lithium manganese dioxide coin | 3 V | 24.5 × 3 mm | Renata 285, Energizer 320 |
 | BR1220 | Graphite-fluoride lithium coin (Panasonic BR series) | 3 V | 12.5 × 2 mm | Panasonic 35 |
 | BR1225 | Graphite-fluoride lithium coin (Panasonic BR series) | 3 V | 12.5 × 2.5 mm | Panasonic 48 |
 | BR1632 | Graphite-fluoride lithium coin (Panasonic BR series) | 3 V | 16 × 3.2 mm | Panasonic 120 |
 | BR2032 | Graphite-fluoride lithium coin (Panasonic BR series) | 3 V | 20 × 3.2 mm | Panasonic 200 |
 | BR2325 | Graphite-fluoride lithium coin (Panasonic BR series) | 3 V | 23 × 2.5 mm | Panasonic 165 |
 | BR2330 | Graphite-fluoride lithium coin (Panasonic BR series) | 3 V | 23 × 3 mm | Panasonic 255 |
 | BR3032 | Graphite-fluoride lithium coin (Panasonic BR series) | 3 V | 30 × 3.2 mm | Panasonic 500 |
Compare CR2032 and CR2025 · CR2032 and BR2032 · Print the true-size sheet