October 2, 2018 1:15 pm Update

Does solar power 🌞 work on cloudy, rainy days? 🌧

The volt meter on my truck says the battery voltage is 13.7 volts. That means the battery is charging with the engine off. 🔋 Once the sun angle decreases and panel output drops, the voltage will drop to 12.6-12.7 volts as no charging will occur.

So yes, solar does work on cloudy, rainy days. 😎

Photo: 100 Watt Panel
Photo: Feed Lines - Battery, Ground, Power To Cab
Photo: Panel On Cap
Photo: Sun went under sun but still floating the battery
Photo: While not an ideal way to run power from the rooftop panel, this is tight, not bouncing, protected by heavy plastic conduit
Photo: Starting Battery Voltage Monitor - CB Radio - Power For Dashcam And Cell Phone - Switch Controlling Isolator Relay
Photo: Fan
Photo: Isolator Relay
Photo: Switch Box
Photo: Low Voltage Disconnect Relay - Solar Controller

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