You can externally charge a wide selection of device batteries including iPhones, iPads, Samsung, Hwawei, Oppo, Vivo using anyone of the included 4 boards. If your device battery has a connector that matches the board connector, chances are you can charge it using the matching board. Read text on the boards to find out what devices are supported. The boards also have a button which acts as a battery activator. Press it for few seconds while charging to force charge dead batteries that otherwise cannot be charged inside the device.
1x Power supply cable (use with your power supply)
1x Micro usb cable.