Solar charge controller plays a major role in the solar system whether it is grid-tied, off-grid or hybrid. Simply put, it’s like the CPU of your system. It decides how many charging currents can be directed into your batteries and how many discharging currents can flow from the battery to the loads. It can provide your system(batteries mainly) with multiple protection, for instance, overcharging protection, under voltage protection, overheating protection and so on. There are mainly two types, PWM and MPPT.

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