Solar Charge Controller
Looking at solar and seeing different options for controllers. What's the difference between PWM and MPPT?
Forum Discussion
PWM passes just the amps from the panel to the battery. Hence any panel voltage (and power) higher than the battery charging voltage is lost. It cost less and works good with "12V" panels.
Higher voltage panels need MPPT which converts the panel power (volts and amps) to amps (more amps than the panels can produce) to charge the battery. It costs more than PWM controllers.
Many other factors are involved including required power, panel size/location, cost/watt, wiring, etc.
Higher voltage panels need MPPT which converts the panel power (volts and amps) to amps (more amps than the panels can produce) to charge the battery. It costs more than PWM controllers.
Many other factors are involved including required power, panel size/location, cost/watt, wiring, etc.
