The
battery voltages were under load, so they don't equate to completely discharged cells--when a
battery is completely discharged the voltage falls rapidly. The
boat is new, so
corrosion is probably not an issue, but I agree with the suggestion to check the voltage drop and
wiring size from the chargers.
For future upgrades, LED replacement bulb for the
anchor light will drop its
consumption to 0.2 amps, a netbook computer will draw 1 amp.
When I replaced my gel
batteries with
cheap wet acid ones in
Greece, the operating voltage fell about 0.5v. Things still worked pretty well for over a year, and I was finally able to find decent
batteries duty free in
Gibraltar for less than a king's ransom.
At least you are able to enjoy the new boat--I talked to one cruiser who had to run his main
engine 10 hours a day to keep the batteries charged on the
passage from
California to
Hawaii, but he still made it.
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