On Thu, 05 Aug 2004 17:09:51 GMT, "Gordon Wedman"
wrote:
I could do this but every time I switch the chargers back on they initially
go to bulk charge mode at 14.2 volts and I think they are programmed to hold
this for 30 minutes. I'm not sure this is doing my fully charged batteries
any good

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It's not the charge voltage that's so important as much as the charge
current (this assumes conventional lead acid batteries). If your
batteries are already fully charged they should float up to 14.2 volts
very quickly and charge current will be quickly reduced. A proper 3
stage charger will sense the low charging rate and switch to float
mode.