Lithium Battery Auto-restart Function More Convenient for Lithium Battery Charging Intelligent Power Supply Mode, Intelligent Distribution of Solar Panel/Mains/Battery Power Shares Utility Charging Voltage/PV Charging Voltage Adjustable, Match Different Battery Charging Requirements Slim Body, Convenient Installation And Transportation Battery Reverse Connection Protection with Fuse Switch, Safer Installation PF1.0, High Efficiency, Lower Consumption, Energy Conservation/ Environmental Protection/Electricity Saving/Cost Saving Support Working without Battery: Reduce Solar System Cost High Precision of Output Voltage, ±5%, Take Care of Your Appliances Communication Option: External WIFI, Supervise at Any Time BMS function for lithium battery