14500 Battery
AA-sized lithium-ion. Higher voltage than AA alkaline - check device compatibility. Name comes from dimensions: 14mm diameter × 50mm height. Direct AA size replacement but with 3.7V instead of 1.5V.
Quick Specifications
Voltage
3.7V
Capacity
800-1000 mAh
Size
⌀14 mm
Height
50 mm
Technical Drawing
Dimensions shown in mm. Drawing not to scale.
Chemistry & Performance
| Chemistry | Voltage | Capacity | End Voltage |
|---|---|---|---|
| Lithium Ion | 3.7V | 800-1000 mAh | V |
Physical Specifications
- Diameter
- 14 mm
- Height
- 50 mm
- Weight (typical)
- 20-25 g
Common Uses
- Small flashlights
- Solar lights
- Electronic devices
- Some AA-compatible devices
Temperature Range
Operating
-20°C to 60°C
Storage
-30°C to 70°C
Data Sources
- Wikipedia - 18650 Battery
Retrieved: 2025-09-01
- Battery University - Types of Battery Cells
Retrieved: 2025-09-01