- Especially fit for any solar lights or devices that uses 3.7V 18650 Lithium-Ion battery (must not be used on 1.2V or different voltage lights or devices)
- The mah refers to how much capacity a single battery can hold (the bigger the number the better as long as the devices use the 3.7 voltage)
- Dimensions: approx 2.5" L x 0.75" Diameter (6.5cm L x 1.7cm Diameter)
- Weight: approximately 1.6 oz per battery