Harbor freight solar to keep battery charged
I've got a 6 year old harbor freight 45w solar setup. I've also got a 80w solar panel. The 80w panel is on the roof of my Four Wheel pop up truck camper, with a charge controller. This keeps my single...
Forum Discussion
smkettner wrote:landyacht318 wrote:Does the OP have AGM batteries?
12 watt solar overcharge
My experience is that 15 watts NEVER brought my 4x GC2 flooded batteries over 13.4 volts even during the longest sunniest days here in So Cal.
15+ volts? No possible way on its own.
Your FLAs likely have enough self discharge to keep the 15W panel at bay. There is likely parasitic loads involved as well.
Are you sure it is OK to leave a totally disconnected boat trolling battery connected directly to a 15W panel for an unlimited period of time?
HTH;
John
