The Einhell USB battery adapter USB TE-CP 18 Li USB-Solo is a practical and mobile external power source for charging mobile phones, tablets, MP3 players, and many other small energy consumers used on the go. The power supply comes from a system battery from the innovative Power X-Change family to provide ample power for recharging empty consumer products at any time. With 2 USB ports on the housing, two devices can be charged simultaneously. For fast charging, one of the USB ports has a powerful charging current of 2.1 A. The charging time for individual devices depends on the battery capacity of the connected device. Supplied without battery and charger as a supplement to existing devices from the Power X-Change family by Einhell.