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TURNKEY's avatar
TURNKEY
Explorer
Mar 24, 2019

How to power a fan only when solar is charging.

I want to run an exhaust fan from my battery compartment to vent out hydrogen during charging cycles but I don't want it to run 24/7 as I do now. I tried powering a computer fan off my panels before t...
red31's avatar
red31
Explorer
Mar 27, 2019
No more open circuit voltage for me as I added a load to the panels, a 1.2w led landscape light at the controller input! Now when the controller is in PWM, the off voltage will not be Voc but some other to be measured voltage.

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