2 MPPT charge controller. Equalization charging function. Work with or without battery. Configurable grid or solar input priority. WIFI Dongle Included for Monitoring. Support parallel operation for capacity expansion up to 60kW (6 units maximum). PV and grid power the load jointly if PV energy is insufficient. Flexibly schedule the Inverter charging and discharging time. Maximum PV Array Power 12500W PV input voltage up to 550VDC. Battery type: Lithium/Lead Acid Rated Power: 10000W 2 AC input terminals with integrated transfer switch