The USB battery adapter power bank is a portable and convenient external power source for charging smartphones, tablets, Bluetooth speakers and other small devices on the go. It utilizes a system battery from the 18V POWER FOR ALL to ensure constant power supply for recharging depleted consumer products. Equipped with 2 USB ports (USB-A + USB-C®), it can charge up to 2 devices simultaneously. The USB-C® port supports fast charging with a robust 3A current. The actual output current (per USB port) depends on the USB device connected and its energy requirement. Please note that the battery and charger are not included and this product is designed as an addition to existing 18V POWER FOR ALL devices.