SOLAR CONTROLLER
A solar charge controller(for example: RENOGY 20 AMP MPPT SOLAR CHARGE CONTROLLER ) is an essential part of every solar charging kit. The main role of a controller is to protect and automate the charging of the battery. It does this in several ways: 1. REDUCING THE VOLTAGE OF YOUR SOLAR PANEL Without a controller between a solar panel and a battery, the panel would overcharge the battery by generating too much voltage for the battery to process, seriously damaging the battery. Overcharging a battery could result in the battery exploding! 2. MONITORING THE VOLTAGE OF YOUR BATTERY The controller detects when the battery’s voltage is too low. When the battery drops below a certain level of voltage, the controller disconnects the load from the battery in order to prevent the battery from being drained. A completely drained battery will lose some of its overall capacity. Low voltage can still damage the battery if the load is connected. 3. STOPPING REVERSE CURRENT