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CR1220 vs CR2032
CR1220 and CR2032 are not interchangeable. They differ in diameter (12.5 mm vs 20 mm), thickness (2 mm vs 3.2 mm). The CR2032 holds about 5.6× the energy of the CR1220 (225 mAh vs 40 mAh).
| CR1220 | CR2032 | |
|---|---|---|
| Type | lithium coin cell | lithium coin cell |
| Voltage | 3 V | 3 V |
| Size | 12.5 mm × 2 mm | 20 mm × 3.2 mm |
| Typical capacity | ≈ 40 mAh | ≈ 225 mAh |
| Rechargeable | no | no |
| Other codes | DL1220, BR1220, ECR1220 | DL2032, ECR2032, BR2032, 5004LC |
Can I use CR2032 instead of CR1220?
No. Different width: 20 mm vs 12.5 mm.
Can I use CR1220 instead of CR2032?
No. Different width: 12.5 mm vs 20 mm.
Where each one is used
CR1220: laser pointers; camera clock (CMOS) backup; small LED lights; some car keys.
CR2032: most modern car key fobs; Apple AirTag and other Bluetooth trackers; computer motherboard (CMOS / BIOS clock) battery; bathroom and kitchen scales.