EVPEAK SD1 4.7" Touch Screen 1000W LiPo LiFe LiIon LiHV NiMH NiCd Battery Charger Discharger Built-in 750w AC Power Supply Built-in 750W AC power supply;Colorful human-computer interaction interface ;Large screen ,272*480dpi; Active OS makes operation easy and clear;Visual UI , muti-language;Active PFC to strong adapt to the grid; Automatic detection and soft start function;Short circuit protection,over current protection,over voltage protection,reverse polarity protection; Visual UI real-time monitor the charge and discharge process;PC control,firmware upgrade available; High efficiency,high power smart cooling system;Handles for easy carrying;