MPPT SOLAR CHARGER CONTROLLER 40A
A solar chager controller manages the power going into the battery bank from the solar array. It ensures that the deep cycle batteries are not overcharged during the day, and that the power doesn’t run backwards to the solar panels overnight and drain the batteries. Some charge controllers are available with additional capabilities, like lighting and load control, but managing the power is its primary job.
A solar charge controller is available in two different technologies, PWM and MPPT. How they perform in a system is very different from each other. An MPPT charge controller is more expensive than a PWM charge controller, and it is often worth it to pay the extra money.
The Key Features of a Solar Charge Controller are:
- Multistage charging of battery bank – changes the amount of power set to the batteries based on its charge level, for healthier batteries.
- Reverse current protection – stops the solar panels from draining the batteries at night when there is no power coming from the solar panels.
- Low voltage disconnect – turns off attached load when battery is low and turns it back on when the battery is charged back up.
- Lighting control – turns attached light on and off based on dusk and dawn. Many controllers are configurable, allowing settings for a few hours or all night, or somewhere in between.
- Display– may show voltage of battery bank, state of charge, amps coming in from solar panel.