Forum Discussion

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 26, 2019
I wonder how a small load would affect the controller scanning for mppt.

When the controller is off (scanning)/PWM/sleep the panels operate at a matched resistance as the load vs Voc, likely just a few volts for a small load.

https://www.youtube.com/watch?v=JZQEJ33xblE

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,194 PostsLatest Activity: Feb 01, 2025