Top Features . Dual charger - fast charge circuit for rapid charging of H520EDual TFT colour screen for displaying charge time cell voltage real-time battery capacity and capacity percentage Able to create an optimal storage capacityStorage function for discharging batteries to 385 volts. This feature is used for long-term battery storageAC current input 100-240V for global compatibility Protection against short circuit over charging and high temperatureUSB output Quickly and easily charge up-to two H520E batteries at the same time using the DY5E Dual Charger. Operating the system is simple - Insert the batteries into the battery compartments and the DY5E dual charger will start to charge your batteries automatically.The DY5E is equipped with two separate colour screens which display charge time cell voltage and real-time battery capacity. You can also charge additional devices such as the ST16E remote control via the integrated USB output.The convenient Storage function prepares your battery cells for optimal storage conditions especially helpful if you don’t want to use your battery for some time. Specifications . Dimensions 178 x 177 x 65 mmWeight 790 gInput Voltage 100-240v ACCharge Current 3.0A x 2Battery Cell Count 4 CellBalancer 400 mA/cellCharge Output Dual Independent OutputUSB Output 5V / 2.0A. .