Specifications Quick charge: 1h fully charged by USB ports Voltage: 1.5V Size: AAA Capacity: 600mWh LED Light Indicator: Charging - Red light FLASH, full charged - Red light ON Environmental protection: NSC Ternary Battery Cycle Life: Over 1,000 times by USB charging only Low or high temp to store or use: -20°C to 60°C Discharge platform: Discharge at 1.5V constant Insert correctly( /-). Package 4 x HUAHUI Micro USB Rechargeable Lithium 600mWh AAA Battery