If you search this site you will see lots of discussion. I just sold my TT that had two Trojan T 125's still going strong after ten years. Golf cart batteries are made for deep long discharges more so than deep cycle 12 volts. Just acquired another TT and did the same thing. Two Trojan 125' s wired in series attached a Xantrax 2000 watts inverter so I can watch tv, charge phones ipad etc, or make a frozen margarita with a blender! I will be adding solar later so I won't have to run gent as much.