6 Best Solar Charge Controllers (2023 Tested)
Considerations When Buying a Solar Charge Controller. To select a solar charge controller, you need to know the type of system you''ll be using it with, whether it be a 12, 24, 48-volt, or 110-volt/220-volt AC system. You also need to know the total number of batteries of your system, as well as their amp-hour capacities.