pwm

In this article we will explain MPPT vs PWM Charge Controllers Comparison. At first glance, a charge controller may not seem so important. Charging batteries is a big part of an off-grid system, but can't you just wire your renewable energy source straight into your batteries and be done with it? The answer is yes, but that you definitely shouldn't. Batteries are the most expensive component of your off-grid system and charge controllers actually protect them while charging. As a lead-acid battery (the current standard for solar and wind applications) charges, the optimal voltage for charging the battery changes (for more…