What Is A PWM
A PWM charger is an older device that brings down PV volts to the battery volts for charging
How Does An MPPT Charge Controller Work?
An MPPT controller extracts the maximum power from solar panels
PWM Vs MPPPT
Pros and Cons?
MPPT more expensive,
heavier. PWM very cheap
and good for smaller
What is the difference between MPPT and PWM?
Tests show that MPPT solar chargers can boost charging power by up to 25%!
What About Bigger Systems And Difficult Conditions?
MPPT controllers excel at extracting power gains from large solar panel arrays in cloudy weather conditions