2- 6 amp banks, 12amp total output. I installed a 3 bank. I had to replace a fuse in bank 2 and it takes longer to charge now. I could not find the exact replacement local, so it may speed back up if you can find it. It has been installed so it is dirty. $85 shipped.
Can you explain the longer to charge statement?
Bank one will finish charging
Bank two will keep charging longer. It will eventually turn green, it just takes a while. I bought new batteries this year and was still doing the same thing. It did not do it before the new fuse. I feel like if you find the fuse with the exact specs it would cut the charge time down.
How old is the unit? How long are the leads?
looks like from 2014, leads are 6ft