2006 Star Classic 2+2 issues

[jbuczko]

I just purchased a 2006 Star Golf cart and looking for help. It a 48v and has 6 trojan batteries T-875. I have been charging for the last 12 hours and have a collective voltage across all the batteries of 44.6v. When i started it was 36v. What is the minimum amount of voltage that will make sure this cart works. Im not sure if I have a battery issue or controller issue. I cleaned all the terminals before i started charging and checked all the batteries water level. I had to add some water to a couple of batteries. Im just trying to verify if my issues is batteries or controller. It is a Curtis 1268 and i see the status light was giving me a couple of errors. Last night was 5,3 and this morning I'm am getting a 2,5. any help would be grateful.