AAAA Battery
Also known as: LR61
Smallest common cylindrical battery. Primarily used in precision instruments and compact electronics. Not widely available in retail stores.
Quick Specifications
Voltage
1.5V
Capacity
400-600 mAh
Size
⌀8.3 mm
Height
42.5 mm
Technical Drawing
Dimensions shown in mm. Drawing not to scale.
Chemistry & Performance
| Chemistry | Voltage | Capacity | End Voltage |
|---|---|---|---|
| Alkaline | 1.5V | 400-600 mAh | 0.8V |
Physical Specifications
- Diameter
- 8.3 mm
- Height
- 42.5 mm
- Weight (alkaline)
- 6.5 g
Standard Designations
IEC Code
R61
ANSI Code
25A
Common Uses
- Microsoft Surface Pen
- Stylus pens
- Laser pointers
- LED penlights
- Glucose meters
- Small headphone amplifiers
- Digital calipers
- Small electronic devices
Temperature Range
Operating
-18°C to 55°C
Storage
-30°C to 70°C
Data Sources
- Energizer Technical Data Library
Retrieved: 2025-01-09
- Duracell Technical Specifications
Retrieved: 2025-01-09
- Wikipedia AAAA Battery Technical Reference
Retrieved: 2025-01-09