A solar charge controller is a vital component in off-grid and hybrid solar systems. It regulates the voltage and current coming from the solar panels to the batteries, ensuring safe and efficient battery charging. It prevents overcharging, deep discharging, and even reverse current flow from the battery back into the solar panels at night.
PWM controllers are cost-effective and widely used in small solar setups. They maintain battery life by gradually reducing the charging current as the battery reaches full charge.
MPPT controllers are more advanced and extract the maximum power from the solar panel by adjusting the voltage and current. They are ideal for medium to large systems and work well in varying sunlight conditions