recently my cart just stopped going batteries are fully charged. Cart stopped pulling as I was driving so I pushed it home. All battery connections were good so I so I pushed the accelerator to see to see if the motor was spinning freely incase the motor broke the shaft. About the second or third time I pressed the accelerator the last battery exploded in my face. Luckily I was not injured. I was wondering what could cause this just looking for things to trouble shoot before I bring my cart to a repair shop and get raped or overcharged. Any help would be appreciated.