The black 6000mAh Dual USB Battery Power Bank from QVS is a compact lithium-ion battery that allows you to charge up to two devices simultaneously with its 2.1A and 1A USB ports. It has a capacity of 6000mAh and is compatible with smartphones, tablets, e-readers, MP3 players, and virtually all devices that may be charged via USB. This battery pack is also equipped with battery status LED indicators that help monitor its remaining battery level.
This battery pack requires a USB power outlet to recharge. While it does include a 1' micro-USB cable, this cable is only designed to charge the battery pack. Devices with micro-USB, mini-USB, 30-pin, and other ports must use their current charging cable to connect to this battery pack. When the battery pack is fully drained, recharging takes up to 5-6 hours with a 1A AC adapter and up to 10-12 hours when charged with a 0.5A power supply, such as a computer's USB port.