Post by Admin on Sept 17, 2018 21:34:42 GMT
Jun 18, 2018 5:58:49 GMT @prepper said:
2-100w panels, 8-35ah=280ah batteries, 20 amp tracer mppt controller. Batteries can be at 100% all day but at night with no draw on them drop to 60%, sun comes up and go back to 100% pretty fast. They show 13.8 volts when charged 100%, panels put up to 20 volt output. I plugged a box fan into the inverter when they were at 100% during the day and it didn't take but a minute or 2 and they were at 65%. These batteries are about 3 1/2 years old. I'm guessing they are shot. What do y'all think?
I think your just fine.... Stop worrying about the % on your CC it means NOTHING it shouldn't even be there....
What tattoo said. It's the (non-charging, non-loaded) voltage of the batteries that you should pay attention to. Ultimately, that's the number that tells you the true state of your batteries.
Jun 19, 2018 2:56:29 GMT @prepper said:
That's what I needed to hear. Wasn't looking forward to buy new batteries. Thanks for the help.