Small and easy to transport, the Phantom 3 Battery Charging Hub allows you to charge up to four Phantom 3 intelligent flight batteries. In use, the charging center automatically selects the battery with the highest charge and fully charges it before moving on to the next battery. The entire process is monitored and the status of each battery is displayed with LED lights, making the charging process simple and easy. To be used with the Phantom 3 charger and cable.