The weather had said 36 degrees but to me it felt much colder. That was nightime. Daytime was in the high 50s I would guess.
I dont know their initial voltage upon receipt. I dont have a voltomoter or I would have checked. The documentation stated they should be charged individually at first, then paralleled for 24 hours. I didnt know how I was going to charge them. I didnt have all my supplies in yet. Our other system had went down a few days prior to their arrival. I had been trying to hook up a cheap inverter to some small tool batteries but couldnt find the small alligator clamps I needed. So I was talked into hooking up to one of these batteries. Hooked onto it here or there. Then it beeped after a period of time...several days at least but I was only using sparingly. I knew it had the BMS for protection so I thought it was fine. Then I read about the constant self discharge and realized it wasnt. I finally have most my supplies. Just waiting on the 12a fuse to arrive still. I hooked up the charge controller to each battery for a reading. It came back 10, 11, 13, 13. I read they dont get damaged until 8 something. I set up my temporary charge station with the 3 panels paralleled.
After covering the panels to disconnect...the battery wouldnt read at all. It wouldnt even power the controller. So I charged all the others up to 13.3 because it seems like thats what my charge controller stops them at. Then I paralleled the dead one to a charged one for 18 hours approx. Hooked it up and they both read 12.7 after that. Charged them both back up. They seem to be fine. I hope I havent done permanent damage.
This is my plan. I changed the location to an interior of a large cabinet. I just want to verify the wiring looks good especially with respect to the 150a class t fuse to the inverter. I am pretty sure I undeestood it correctly this time. Can you please confirm this? Thanks!
