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| CR1225 | BR1225 | |
|---|---|---|
| Size | About as wide as a shirt button | About as wide as a shirt button Same |
| Thickness | As thick as 3 credit cards stacked | As thick as 3 credit cards stacked Same |
| Power | 3 volts | 3 volts Same |
| Kind | Coin battery | Coin battery |
Lasts longer: Same
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Usually. Same size and power, made a little differently. The BR type copes with heat better (think tyre sensors) but gives less power, so it suits low-power things.
Usually. Same size and power, made a little differently. The BR type copes with heat better (think tyre sensors) but gives less power, so it suits low-power things.
They last about the same.
| CR1225 | BR1225 | |
|---|---|---|
| Diameter | 12.5 mm | 12.5 mm |
| Height | 2.5 mm | 2.5 mm |
| Nominal voltage | 3.0V | 3.0V |
| Typical capacity | 48 mAh | 48 mAh |
| Chemistry | Lithium manganese dioxide | Lithium carbon monofluoride |
| Shelf life | 10 yrs | 10 yrs |
| Operating temp | -30 to 60 °C | -30 to 85 °C |