Solar Charge Controller
Looking at solar and seeing different options for controllers. What's the difference between PWM and MPPT?
Forum Discussion
PWM (Pulse Width Modulation) clips voltage to what the battery needs for charging. Typical panel is 18 volts and is clipped to 13.2/14.8 range depending on program. So you will get Isc x 14 volts as the wattage vs the rated wattage of the panel. Lower cost.
MPPT (Maximum Power Point Tracking) converts wattage by reducing volts and adding amps for correct battery charging. The conversion loses about 5% of power. MPPT is generally used with higher voltage panels or multiple panels wired in series. Higher cost.
MPPT (Maximum Power Point Tracking) converts wattage by reducing volts and adding amps for correct battery charging. The conversion loses about 5% of power. MPPT is generally used with higher voltage panels or multiple panels wired in series. Higher cost.
