On Wed, 06 Sep 2006 16:53:55 GMT, "Gordon Wedman"
wrote:


"Thomas Wentworth" wrote in message
news:nyALg.20417$%_1.9062@trndny07...
Is it necessary to remove the batteries in the boat for winter storage?
I'm thinking: remove and store in garage ( cold there ). Leave in boat
( cold there ).

So, why remove?

If they discharge and it gets cold enough the electrolyte can freeze and
crack the cases. If your boat is going to have electricity over the winter
and you have the batteries connected to a charger I'd leave them on the
boat. Maybe you would need lights on the boat at some time or battery power

I have a small solar panel connected during winter. 2-5 watt panel
need no regulator, just make sure there is a diode in series to
prevent discharge. And a fuse of course.

Here in Finland we are as far north as Alaska, meaning there is little
daylight during winter months. And temperature well below freezing. My
small panel facing south gives 100...200 mA charge perhaps 1-2 hours
daily in Dec-Feb. Enough to keep two 100 Ah batteries from
discharging. Batteries fully charged when spring comes

Recommend solar panel! I will never again bother to remove batteries
for winter or hook up AC power just to use a battery charger for a
day.

Mika




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