Solar panel
Just got a 100w panel and want to run a 12v 80w radiator fan, NO BATTERY. The panel is cranking out 23v do I need to put a controller in the middle. All controllers I look at have a battery hookup b...
Forum Discussion
valhalla360 wrote:
If the controller does require a battery, you also will need a timer.
If you put a battery in and the fan runs when there is voltage from the battery, the battery will tend to run down at night. Might last a few weeks but constantly running the battery to 0% charge will kill the battery very quickly.
This 12V timer would work for your application.
