The newest addition to the Xtar 'AC Power Series' the X4 is capable of charging all four cells at 1A (and two at 2A!). This charger comes complete with a power cord and UK plug that conforms to British Standards. Compatible with all popular cell sizes (18350, 18650, 20700, 21700). The front features a bright clear display, with a voltage indicator, capacity readout, and charge speed. This display can be turned off with the button on the front of the charger if needed. The Xtar X4 is also capable of charging Ni-MH cells. Additionally, this charger also has a 1A USB Output for charging other devices such as phones and tablets.