3 V BR coin
BR2032 battery equivalent
BuyBR2032Lithium (BR) · 3 V · 20.0 × 3.2 mm
Can I use one of these instead?
3 V · 20 × 3.2 mm · Graphite-fluoride lithium coin (Panasonic BR series)
BR2032 is Panasonic's graphite-fluoride lithium coin in the 20.0 × 3.2 mm outline, nominal 3 V, 200 mAh at a 0.03 mA continuous rating. It drops into the same holder as CR2032. Panasonic's own comparison is that BR is the storage-stable system and CR is the one with the stronger low-temperature and pulse behaviour. A fob that specified CR2032 should get CR2032.
| Chemistry | Graphite-fluoride lithium coin (Panasonic BR series) |
|---|---|
| Nominal voltage | 3 V |
| Diameter × height | 20 × 3.2 mm Panasonic September 2022 BR lineup, nominal diameter and height. |
| Designation on the datasheet | BR2032 |
| Weight | Panasonic about 2.6 g |
Can I substitute it?
Interchangeable in the mechanical sense with CR2032. Electrically, prefer BR when the device specified BR and the service is a light, long drain. Prefer CR when the device pulses, or when the old cell was CR.
Size check at real size
Lay the old cell on the outline. This shows the top outline (diameter) and the side outline (height) at 1:1 once the screen is calibrated.
BR2032 outline, 20 × 3.2 mm. Not a photograph, drawn from the figures above.
Calibrate this screen
Screens scale pages differently, so true size is only true after calibration. Hold a bank card or ID card (85.60 mm wide, ISO/IEC 7810 ID-1) against the bar and slide until the bar is exactly as wide as the card.
Saved in this browser only.
All cells on one true-size sheet
When printing, set scale to 100% or Actual size, not Fit to page.
Capacity
| Source | mAh | Test as printed |
|---|---|---|
| Panasonic | 200 | Nominal capacity. Continuous standard drain 0.03 mA. September 2022 lineup. |
Same outline
- CR2032 Lithium manganese dioxide coin · 3 V · 20 × 3.2 mm
Graphite-fluoride lithium coin cells
Panasonic's Japanese industrial catalog titles the BR series as graphite-fluoride lithium (フッ化黒鉛リチウム). The English coin-cell introduction draws the practical distinction: the CR line, with a manganese dioxide cathode, is the one described for low-temperature behaviour, and the BR line is the one described for holding its charge in storage. Both are nominal 3 V. Where the size code matches, the outline matches. Panasonic's September 2022 table lists BR2032 at 20.0 mm by 3.2 mm, the same nominal outline as CR2032, and a nominal capacity of 200 mAh at a continuous drain of 0.03 mA. That drain is much lighter than the 0.2 mA continuous rating Panasonic prints for CR2032.
Renata's interchange chart prints 'CR/BR2032' in the Energizer column of the CR2032 row, so the trade treats them as the same socket. They are the same socket. They are not the same cell. A key fob that pulses a transmitter was almost always designed around CR. A memory-backup or a long-life clock that says BR on the old cell is asking for the lower-drain chemistry. If you can still buy the BR part, fit the BR part. Fitting CR into a BR socket will usually power the device; it is not a claim that calendar life will match.
Sources
Last verified 2026-10-29.
- Panasonic coin-type lithium batteries lineup, September 2022 Panasonic Energy, checked 2026-10-29
- Panasonic industrial battery catalog (model-number example and BR series title) Panasonic Energy, checked 2026-10-29