Isbell was mayor of Pasadena from 1981-1985 and from 1993-2001 when he reached term limits. He was returned to the mayor's office in January, 2008 for an unexpired term and subsequently was re-elected to a full term in May, 2009.
These are nicads though, probably your gold cart is lead acid. If you find a good cheap local source of deep cycle 6 volt batteries, let me know. I'd say 7 years is a pretty good run for golf cart batteries, esp. if you ran them down several times. You'll do even better if you top them off at 80% or more.
For instance, starting you car requires a shallow cycle battery. Do not replace the batteries in your electric golf cart with SLI batteries. Currently E-Z-GO 36V and 48V electric golf carts use 6 volt, 8 volt and 12 volt golf cart batteries. Currently we recommend the use of Exide, Full River, US and Trojan deep cycle batteries which are also compatible with our current line of 36V and 48V golf cart chargers.