(Upgraded Version) EPEVER MPPT Solar Charge Controller 30A 12V/24V Auto Work, Max PV input power 390W charge for 12V battery, 780W charge for 24V battery, Common Negative Grounding. Tracer3210AN Upgrade better funcations and advanced technology, Support lead-acid and Lithium Batteries too, More Safety Protections . Compatible with multiple types battery charging and discharging: Sealed, Gel, AGM, Flooded, LiFePO4 , Li(NiCoMn)O2), Lithium User-defined. Battery temperature compensation function (only for Lead-acid battery), Real-time energy statistics function,Overheating power reduction function;Multiple load work modes,,Full-load operation without any drop in capacity within the range of working International famous brands of ST and IR's components of high quality and low failure rate are used, which can ensure the product's service life ,Charging power and current limitation function, Advanced MPPT technology, with efficiency no less than 99.5% ,Ultra-fast tracking speed and guaranteed tracking efficiency,Advanced MPPT control algorithm to minimize the maximum power point loss rate and loss time ; Wide MPP operating voltage range,High quality components, perfecting system performance, with maximum conversion efficiency of 98% The communication port adopts professional protection chip, With RS-485 communication bus interface and Modbus communication protocol. Monitor and set the parameters by APP (BLE/WiFi Aadapter) or PC software, Available for PC monitoring and external display unit connecting like MT50 and so on, realizing real-time data checking and parameters setting.