Solar Charge Controller, Solar Controller, Solar Panel Controller
Solar Panel Regulator
The solar controller controls the current which is passed by the solar module or solar panel to the battery.
Simple solar controllers in shunt technology ensure that the charging system is adjusted to the battery condition. Additionally they prevent the discharging of the battery by the solar cell at night.
The more expensive MPP controllers (Maximum Power Point solar controller) have more complex loading programs and can create 10% to 30% more charging current from the solar panel.
In general, the performance of the charge controller must be adapted to the overall performance of the solar system.