Will my golf cart operate normally with 4 8-volt golf cart batteries, vs the 6 6-volts? In other words, will 32 volts, instead of 36 run the motor ok, or will it significantly shorten it's life? How about 40 volts vs 36?
Hi, Tim - This is a question not of the motor - the motor should be fine, either way - but of what the controller can handle. I wouldn't think 4 volts either way would matter that much; maybe somebody else could chime in if they disagree.
The charger might be a problem. They usually come in either 36v or 48v, and are not interchangeable, and the type that can be programmed to accommodate different voltages tend to be expensive (so that's probably not what came with your golf cart; ).
8 volt golf cart batteries are lighter, as you probably know, but will shorten your run time considerably from the 6 volt golf cart batteries you've been using.