... 3 starsVoltage: 3.7v, 6600mAh. Output, 5v 1A and 2A.2. power test, press the off switch, blue led lights, four-frame are ... cell needs to be charged.3. Mobile power USB port, an output 5V 1A, an output current of 2A 5V. A lithium charge ... phone charging plug into the phone socket, then press the power switch, the phone starts charging.6. The side of the mobile ...