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| CR2020 | BR2020 | |
|---|---|---|
| Size | About the size of a nickel | About the size of a nickel 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: CR2020 (about 20% longer)
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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.
CR2020 (about 20% longer).
| CR2020 | BR2020 | |
|---|---|---|
| Diameter | 20.0 mm | 20.0 mm |
| Height | 2.0 mm | 2.0 mm |
| Nominal voltage | 3.0V | 3.0V |
| Typical capacity | 120 mAh | 100 mAh |
| Chemistry | Lithium manganese dioxide | Lithium carbon monofluoride |
| Shelf life | 10 yrs | 10 yrs |
| Operating temp | -30 to 60 °C | -30 to 85 °C |