The 18650 is a Li-Ion battery with a 3.7V / 3000mAh capacity. These batteries are common in rechargeable flashlights.
Specifications:- Nominal Capacity: 3000mAh
- Nominal Voltage: 3.7V
- Dimensions: 65mm x 18mm
- Positive terminal: Button top
- Size:18650 (Cylindrical)
