Batteries -- what is reasonable?

[martingregg598]

Pete, I think that your friend might be right. The old batteries could
have been abused, seriously compromising their performance. Are you
sure they're deep-cycle? I had a friend that bought 4ea. 4-d 12v
batteries from a local shop and they were not deep-cycle, you know
thinner plates, quicker discharge and less depth of charge, they
wouldn't last overnight. I know that my 12v batteries do not deliver
the same performance now that they did when they were new and they
haven't been abused, they just don't have the same depth of charge. I
will be switching to 6v soon.
Marty,
95 BMC 37