Side-by-Side Comparison
Button Cells
CR1220 vs. LR41 / AG3
Comparing 2 standards across 5 specifications. 5 key differences identified.
Comparing:
CR1220
LR41 / AG3
A CR1220 coin cell is a 3.0V Lithium Manganese Dioxide battery measuring 12.5mm in diameter and 2.0mm in thickness, with a nominal capacity of about 35 mAh. Its small size makes it common in car key fobs, small LED lights, and low-power Bluetooth beacons.
An LR41 battery (also sold as AG3 or 392) is a 1.5V Alkaline button cell measuring approximately 7.9mm in diameter and 3.6mm in thickness. It's a common size for small thermometers, compact watches, and other low-drain miniature electronics.
Specification Comparison Table
5 Parameters| Parameter / Spec | ||
|---|---|---|
|
Diameter
|
12.50 mm | 7.90 mm |
|
Height
|
2.00 mm | 3.60 mm |
|
Nominal Operating Voltage
|
3.00 V | 1.50 V |
|
Chemistry
|
Lithium Manganese Dioxide | Alkaline |
|
Nominal Capacity
|
35 mAh | — |