The China solar charge controller for sale is divided into PWM and MPPT types. This solar panel and charge controller is used in the solar power generation system to control the solar modules to charge the battery. The solar panel and charge controller is the core control part of the entire photovoltaic power supply system.
As a leading China solar panel controller manufacturer, Cosuper offers both these solar charge controllers to meet diverse energy needs. Our wholesale solar charge controller solutions are designed to optimize the efficiency of solar power systems, ensuring maximum power output and battery longevity.
There is a practical limit though, if the solar array is too large then the power is just wasted since the charge controller is always limiting the output. A typical recommendation is to limit the solar array to 110%-125% of the maximum controller rating.
For example, 200/12 = 16.67 amps. Therefore, if you have a 200-watt solar panel, a 20-amp charging controller is suitable for safety. If we have 4 100-watt solar panels, the equation will be 400/12 = 33.33 amps, so we suggest using a 35-amp charging controller.