Specification： 1. Input: DC 5V 2A 2. Output: 5V 1A,5V 2.1A 3. Built-in battery capacities: 3.7V/20000mAh 74wh 4. Battery Type: Lithium Ion Battery 5. Charge retention: >5000hrs 6. Cycle life of charging: 500 times (1 time = from 0% to 100%) 7. Net Weight: 410g 8. Size: 162mm*80.5mm*22mm
Features: 1. Dual USB output. 2. Built in LED flashlight. 3. Recharge power bank time: use 2A charger (8-10 hours), use 1A chager (16-18 hours). 4. Compatible for any phone, tablet, MP3, MP4, PSP, GPS, game device, camera and many more (just connect with your USB cable). 5. LED display (display battery percentage, in / out charging status) 6. Intelligent voltage recognition chip automatically detects the voltage. 7. Built in battery protection IC to prevent over charging, over discharging and short circuit.