The Einhell TE-CP 18 LI USB-Solo battery adaptor provides a practical and mobile power source for charging devices such as mobile phones, tablets and MP3 players. The adaptor plugs into a Power X-Change battery, providing plenty of power for charging. It has 2 USB ports, allowing 2 devices to be charged simultaneously. For fast charging, one of the ports is supplied with a powerful 2.1Ah charging current. Bare unit, no battery or charger. Voltage: 18 Volt.Power Output: USB port 1: 1.0Ah, USB port 2: 2.1Ah.Weight: 0.06kg.