Troubleshooting
You find yourself with one of these batteries and it just doesn't work? Let's go step by step. You will need a smartphone, a multimeter, and a paper notebook to take notes of the steps and measurements you take. The battery must be worked on with a feeling of great peace of mind.
Take off the seat and you should see something like this:
M1, M2, and M3 are the three battery modules attached to the bottom of the big red wooden plate. The modules are not clearly visible when the battery is mounted in the golf cart, but they look like this:
There are holes and cutouts where you can easily put in a multimeter probe to measure the voltage of each module. Do that! You should measure three near-identical voltages.
Each module contains 4 battery cells in series, therefore the module voltage should be between 11.6 to 16.8V.

