Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!
Do you have a test voltmeter to check the battery pack voltage and each battery? Most problems with carts are battery or cable problems. How old are your batteries?
Test each battery and see if all are same voltage. At three years old, you can have one battery that is going bad, and like a chain, it is the weak link, affecting all the others.