Pulse Width Modulation (PWM)
PWM controllers regulate the charge flow by rapidly turning the power on and off to maintain a constant voltage. As the battery gets closer to being fully charged, the controller reduces the amount of power it sends to the battery to prevent overcharging. PWM controllers are generally less expensive than MPPT controllers but are less efficient, especially in low-light conditions.
RenogyRenogy Wanderer Li 30A PWM Charge Controller Bluetooth Module The Renogy Wanderer-Li is a 30A PWM solar charge controller that integrates efficient PWM charging to increase battery life and improve system performance. Designed with a simple...
Renogy$35.49Renogy Wanderer Li 30A PWM Charge Controller The Renogy Wanderer 30A PWM Charge Controller is a reliable and efficient device designed to regulate the charge and protect the battery in your solar power system. With its advanced PWM charging...$35.49