What Happens with a 12v and Uneven SGs?

I did what Mex said! :)

I now have the two 12s in parallel as the bank for the 2000w inverter (the bank's only load) which takes care of the microwave, toaster, and kettle. I ran a wire from that bank to inside to a little voltmeter continuous read, because that bank is not on the Trimetric. The voltage will tell me what is going on with that 12v bank. ( I did not run the second wire from the Trimetric like you can)

Meanwhile, the four 6s are in a bank with the rest of the rig to run, including the smaller inverter that runs the tv/dvd etc. The Trimetric is on that.

I haven't figured out solar charging yet. My solar can be switched over to either bank, but I really should have two solar sets. I will worry about that next year.

Thanks Mex, can do. Can you elaborate a little on how the uneven SGs operate (they won't equalize further--what you see is what you get)

What about among these two bad guys? Will the uneven SG one bring down the even one?

Do you mean don't ever pair them with other good batts? I normally parallel all the batts while camping to get max Peukert, but then separate them at home to do individual runs to 100%.

I could make the two 12s a private 2000w inverter battery bank and leave the four 6s to do the rest of the work. The two bad 12s do stand up well under load as shown the past few weeks trying them out. Rough AH tests show somewhere between 85-90% of 150AH rating as their capacities. Did a couple of 50-90s in a row and they acted like they should and came back up (as far as they can) at home so that all worked ok.

Also, after they are at 100% and go to a Float charge, are they ok to stay linked while being floated or is that bad? I get how they will ruin a new battery if linked but not being charged, just sitting there. Confusion about if they are all getting a steady 13.4 if that still happens.

Go to the reefer, crack a Brewskie. Keep these delinquents in a separate bedroom from the good kids and enjoy. When they die you won't be out much. With gravity figures like that I wouldn't worry too much about them lasting until they grew gray whiskers. But numbers like you posted will infect new good batteries with the Early Death Syndrome.