- SEE the UNIT HERE: or - BLUETOOTH VERSION: [ amazon affiliate links ]br See it at the bateria power website: - The 12v battery from the video: br In this video I discuss the benefits of using this 20 amp mppt charge controller and compare it to Victron for usability. Found this to be very usable and super portable. I highly recommend. br br Solar charge controllers are also known as solar charge regulators. A solar regulator regulates the charging current of the solar panel to provide the most efficient charge to the battery and prevent overcharging.