SR44 Battery
Also known as: Silver oxide button battery
One of the most common button battery sizes with both silver oxide (SR44) and alkaline (LR44) chemistry options. Silver oxide provides superior performance with stable voltage and higher capacity, while alkaline offers lower cost. The flat voltage profile of silver oxide makes it preferred for precision devices.
Quick Specifications
Voltage
1.55V
Capacity
150-165 mAh
Size
⌀11.6 mm
Height
5.4 mm
Technical Drawing
Dimensions shown in mm. Drawing not to scale.
Chemistry & Performance
| Chemistry | Voltage | Capacity | End Voltage |
|---|---|---|---|
| Silver Oxide | 1.55V | 150-165 mAh | 1.2V |
| Alkaline Equivalent | 1.5V | 110-130 mAh | 1V |
Physical Specifications
- Diameter
- 11.6 mm
- Height
- 5.4 mm
- Weight (typical)
- 2.3 g
Standard Designations
IEC Code
SR44
ANSI Code
S76
Common Uses
- Watches
- Calculators
- Small electronics
- Medical devices
- Digital thermometers
- Laser pointers
- Electronic toys
- Hearing aids
- Digital calipers
- LED lights
Temperature Range
Operating
-10°C to 60°C
Storage
-20°C to 60°C
Data Sources
- Energizer 357/303 Silver Oxide Datasheet
Retrieved: 2025-09-01
- Duracell 76A Silver Oxide Battery Specifications
Retrieved: 2025-09-01
- IEC 60086-3 Standard - Watch batteries
Retrieved: 2025-09-01