I just bought a 2012 gem e6. The people had killed the batteries and were running 48v in it (6 x 8v batteries). I got the batteries to take somewhat of a charge and got it to move but seemed to lack power. The engine says it’s 72v and so does most everything else I can see or read in the owner’s manual. So I went and bought 6 new 12v batteries and put them in. I tested each battery (12.6v) and the whole system is right at 75v. I tried to move and it gave me error code 16 (over voltage). Is there some setting I need to change to get it to run on 72v again?
I’m thinking I may need a new motor controller? But will I also need a new charger? Any help is great, thanks!!
I actually figured out what was going on. It had 3 more batteries under the middle seats. So it has always been running on 72v. The folks I bought if from just didn’t know those where there and called it 48v. So when I unhooked those and put just the new 6x12v batteries in, it is seems to run well. I called and talked to a company that works exclusively on gem cars and they where helpful.