... warranty; (1) Key Specifications:1. Li-ion 18650 battery, cylindrical rechargeable battery 2. High capacity 3.7V 2600mAh ... low voltage 2.8V, high voltage 4.2V 6. Battery tested based on International ... laptop, camera, electric appliances, sound equipment, protable power devices, emergency lights, torch etc(2)18650 Battery ... causing hidden trouble of safety.14.If the battery leaks, and the electrolyte get ...