ROCKSOLAR 30A PWM Solar Charge Controller
- ROCKSOLAR$36.99Buy
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From ROCKSOLAR
ROCKSOLAR 30 A PWM Solar Charge ControllerA 30 A PWM controller for a 12 V or 24 V battery with two USB ports on the front for a camp cabin or shed setup where you want to charge a phone straight from the controller. It takes 12 V-nominal panels up to about 400 W at 12 V.PWM is the simple low-cost way to regulate charge: the controller connects the panel to the battery directly and pulses the connection. It cannot use any panel voltage above the battery voltage so keep to 12 V-nominal panels; for a larger array or higher-voltage panels an MPPT controller harvests 20 to 30 percent more.Connect the battery first then the panel then any load.