Built-in high-capacity li-ion polymer battery, 5200mah, to make sure 500 times above charging cycle.. Specification1. Core type: Li- polymer core, rechargeable, 500times above charging cycle,2. Hard plastic shell, white\black\red\green\yellow\pink color,3. Size: 126*70*16mm4.Capacity:5200mah5.Output voltage:5V6.Output current:1A7.Input voltage: 5V8.Input current: 1A9.Working temperature::-5°C+50° ...