How do you check panels for short or wiring problems.

Thanks for the hydro tip. I have 1500 watts. When I go to check the pv panels can I shut the pv breaker down and turn it back on during the day when it the inverter is shut off without damaging anything? It may still be charging the batteries when I shut it down. I heard not to turn it off or on unless it is dark. What do you think?

Sure you can cut the panels off during the day it won't hurt a thing... I've done it several times when I was upgrading my system... But not the batteries first... The panels first..

Its dark etracer shows not charging. External Battery meter shows 25.75 volts. Etracer shows 25.86 volts close enough. Why is soc at 38%. Soc is always puzzles me. 25.86 with no pv input should be 100%. I don't understand. Etracer shows pv generated 1.5kwh today it was 1.9 yesterday. Is that normal for 1500 watts of panels with a mppt controller on a partly cloudy winter day in florida?

Yes thanks, 2 hours of darkness later meter reads 25.71v only .04 lower but soc goes up to 68%, its broken. Thanks Tattoo. 4 batteries soon that is all that I can fit in for now with out overhaul.

Bird he already has wasted power now... You told me the same thing not to add my 2 more batteries and you were wrong.... With 1500w of panels and just 2 100ah batteries is a joke... He should really check his usage with a Killawatt meter and only use half of what he makes everyday... {KISS}

Thanks I found the amp. Realized all I need to do is google it. My batteries get to 29.2 almost every day. I am getting 2 more when I get the 3000 watt inverter in a few days. I checked each of the 5 panel banks. They all tested right at 113 volts. Somehow I was expecting 339 when they joined together but realized its like combining 2 24 volt banks in parallel and I still get 24 volts. I really looked at the wiring and connectors. Some connectors I ordered fit tighter than others. I noticed some of the female prongs were smaller. The look like they are not uniform. That was my concern. Another cloudy day in Florida. My problem with batteries is like you suggested I should probably set the 14 month of aside and replace it with a new on when I add the other two. I guess then If I buy 8 batteries and one dies after a year I should replace all 8. I think Ill keep the 14month and deal with it. By the way Merry Christmas to yall or whatever you celebrate. Peace and good will. Thanks for your assistance trying to save the planet and helping me do that. Jim