Thunderbolt 1.5 watt solar charger
Hi: Just bought a Thunderbolt 1.5 watt solar charger for my RV from Harbor Freight. The box and ads suggest that you can simply plug into cigarette lighter. The instructions, however, say that you ...
Forum Discussion
red31 wrote:
No controller needed IMO.
http://www.solar-electric.com/solar-charge-controller-basics.html
"A rough rule is that if the panel puts out about 2 watts or less for each 50 battery amp-hours, then you don't need one."
Thanks for this.
