Gem 2011 e4

Hi I have a GEM and when two first two bars of the battery gauge drop off the turtle starts flashing and it slows down. There are no codes showing up in the LCD. All the batteries are at least 12.4 volts and has 74 volts at the motor controller. Looking for some direction see how I don’t have any experience on these. Or maybe someone knows where I could get some info. Thanks.

Read answers in previous post. Did you follow the suggeastions? You could have 1 or more bad batteries. you didn’t answer the questions. You may have 74 volts at rest but what have you got under load?