I have 2 systems that I am trying to correct that another local dealer has installed.
This one is 2 strings of (8) UL-16 HC Interstate Batteries, 16 batteries total. We cannot get the batteries to charge over 1.225 despite discharging them and generator charging them till everything shut down. This is a 48 volt system with a Magnum 4448 inverter. He also has (6) 175 watt Solar World panels on a manual tracker. (spends all day tracking the sun) He is adding 2 more this summer. The controller is an MX-60. I have moved the Magnums settings to 1600 AH battery bank size to allow for the inverter to have a longer absorb time to help it finish charging and get to a full battery. It's not working; we have 1 cell at 1.240 and the rest at 1.225. These have not been cycled hard if at all, I am going to suggest that he cycle them several more times to see if anything improves after that The other system has the same problem with a different inverter! So it's not inverter related, but I am at a loss. I have not used Interstates before and want to stay away from them in the future. Any other suggestions? Thanks, Bob Ellison
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