... - 75% remains 4 Lights: 75% - 100% remainsB. Connect the micro USB port with the cable and switch to Power Bank, the other end into the ... Overcharging, Over Discharging, over loading, Short Circuit.5. Multi fuction: Backup battery with flashlight.6. Compatibillity:applicable to cell phone, iphone ... input: DC 5V/1A charge.7.Rated Output: max USB 5V/2.1A. If two USB port is using together, it will be ...