4 Pcs 3.7V 3000mAh 18650 Lithium Battery USB Rechargeable Flashlight Batteries With Protected Box

Specifications: Model 18650USB-3.7-3000 Chemistry Li-ion  Nominal Capacity 3000mAh  Minimum Capacity 3000mAh Nominal Voltage 3.6V Charge Voltage 4.2V Internal resistance(mΩ) <80 Max. Discharge Current 5A Charging current by charger 1A (recommended) 2A (maximum) Charging current by on-board USB port  1A Warranty 12 months LED indicator Charge---red,  Charge complete---green Battery Size  18.6x 68.5 Package Size 90x76x25 Weight 220g Features: - Micro-USB charging port with LED to indicate if battery is done charging. - Protection circuit built in the anode  - Multiple protections with Pressure Relief Vent - Short circuit protection, over charge protection, over discharge protection - 500 charge cycles (A properly maintained battery is designed to retain up to 75% of its original capacity at 500 full charge and discharge cycles) Package Includes: 4 x USB battery 1 x Storage box