· Lithium battery activation function by PV or Utility · Compatible work with LiFePO4 battery via Rs485 · Pure sine wave. Power factor 1.0 · PV input Voltage 60Vdc-500Vdd. Built-in MPPT 110A/110A/135A · Capable to work without battery · Independent air duct design, lower temperature rise, higher stability · Wi-Fi remote monitoring optional · EQ function to optimize battery performance and extend lifecycle · Max.10 pcs parallel for off-grid operation · Support diesel generator