[villages07]

Frank.... thanks for that explanation...first time I've heard it put so clearly.

I have an 03 Club Cart, reman in 06 by the now defunct Golf Cart Connection. I just got my 3rd set of batteries in about 6.5 yrs of use. I do use it a lot ...about 100 miles a week. I have always had initial problems with the 2nd battery behind the driver seat...so, my symptoms sound similar to OP and your diagnosis.

I have a voltage tester and "high end" hydrometer. 2 batteries had one bad cell each but the other 4 tested beautifully. Given they were 2.5 yrs old I elected to replace all of them (Trojan T-875).

How much do you charge for the voltage reducer? Might be a good investment now with a new set of batteries to make sure they last equally.

Thanks to OP and Frank for bringing this up.