A single battery will cause a lot of problems. A single bad battery will cause the entire pack not charge fully and will cause gassing from other battery's. If the rest of the battery's are marginal, a bad battery will stop a cart from moving. Go ahead and invest in a digital volt meter and a hydrometer, if you don't have one. Check the stickies at the top of electric CC and EZ Go for battery testing, and % of charge graphs. The motor on my 512e is a standard GE and the rear end is made by in the USA by Dana. So parts can be obtained. Brakes and cables are unique but are available. Keep us posted and lots of pictures.
