Large capacity UL certified universal international emergency mobile smartphone battery charger. Slim aluminum power bank featuring 4 blue LED indicator lights. All 4 indicator lights are illuminated when device is fully charged. Indicator lights flash while device is charging, and blink when power bank is charging your device. Lights will turn off one by one as power is drained from device use. Individual phone attachments not included, only USB charging cable provided. Charge time differs by device. Must charge power bank prior to first use (approx. 4 hours for full charge). Power supply / Technology: INPUT: 5V/1000mA; OUTPUT: 5V/2100mA. Rechargeable Lithium-polymer battery. Capacity 4000mAh. Work current: 2100mA. Standby current: less 200uA. Working temp: 0~45 C for charge, 0~50 C for discharge.
UL certified device with UL certified battery.
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