... : 1 viceControl box: single, including charge-discharge controller, inverter input/output port, etcBattery: one (by customers in the ... illumination, and to discharge electricity in need Inverter: there are square-wave and sine wave. Direct output of solar is generally 12DV, ... many days for power supply system?6. Loading position, pure resistance, inductance or capacitance? How much the starting current ...