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On 09 Jun 2004 17:06:30 GMT, obull (CCred68046)
wrote:
Do you know of any major differences in regular (not maintenence free)
batteries of the 80's and what they have now?

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I'm not aware of specific differences but there are differences
between manufacturers and between battery types, i.e., starting
batteries vs. deep cycle. I'm guessing a little but my sense of it is
that a smaller battery would be more likely to achieve a 100% charge
and float up to the kind of voltage you're seeing. It might be
interesting to connect a good size marine battery like a 4D in
parallel and see what hapens to the voltage. My guess is that it
would drop as the larger battery should be more capable of absorbing
charge.