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#11
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On Wed, 09 Nov 2005 10:10:56 -0400, Terry Spragg
wrote: Clean, dry tops seems the most important thing, followed by monitoring, trickle charging, and steam distilled water replenishment. Buy and learn to love a hydrometer, it will que your actions. Roger that on the clean tops, clean terminals, distilled H2O top-ups (if necessary) and the hydrometer. Just remember to calibrate the hydrometer reading for ambient temperature. R. |
#12
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![]() wrote in message oups.com... Popular widsom has it that the batteries should be removed from the boat before winteer storage. The boat will be stored outside, here in Montreal,. Question is, why can the batteries not be left in the boat if they are fully charged before the winter and charged again in the spring? Many thanks in advance Matt If you think about the task, you will probably do more damage by moving them than by leaving them on the boat. In the winter, I charge mine every once in awhile. I have 2, 8D batteries and even my wife can't lift them ;-) Bill |
#13
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This has probably been said in one form or another, but just in case:
Lead acid batteries will not freeze if they are fully charged. In fact, the extreme cold will reduce capacity (while cold) but actually extend the battery's life! The challenge, obviously, is to maintain a fully charged condition over the winter. At the very least, the battery should be disconnected from any possible load, no matter how small. A small solar charger would probably keep up with a battery's rate of self-discharge. An interesting question is whether batteries should be left connected in parallel or isolated from one another. If left connected, a bad cell in one will quickly discharge its partner. However, under some circumstances a battery with a relatively high rate of self-discharge could be "kept alive" to some extent by a parallel-connected partner. A discharged lead acid battery is likely to freeze with unfortunate consequences. Chuck |
#14
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Leave them in or not ... if so, I would charge them (as you posted), then
disconnect either lead so there's no chance of leakage/discharge. I bring mine in so they'll be there in the spring ... along with the prop. Bonus ... I have on one occassion hauled the boat battery out of the basement to jump start the jeep. I keep mine in the basement and charge them now and then. I don''t bring them for fear of freezing ... I'm in Ottawa where it has been known to go down to -55C ... if the jeep battery doesn't freeze, then neither would one left in a boat ... i.e., nobody around here brings their car battery in on cold nights :-) Popular widsom has it that the batteries should be removed from the boat before winteer storage. The boat will be stored outside, here in Montreal |
#15
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Terry Spragg wrote in
: Because, in Montreal, they can self discharge, freeze solid, burst the case, thaw, leak weak acid, and eat a hole in the bottom of your boat? I see only one good solution. Dock the boat in Aruba until spring and stay aboard it to "do battery maintenance", an excellent excuse why you can't go back to Montreal until after the spring floods. Problem solved. Rum anyone? Not a single battery in the Caribbean froze solid last winter! I checked! -- Larry |
#16
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( Mika) wrote in :
My boat is stored outside, over 6 months every winter, temperature here in Finland being sometimes -30C... Aruba's too far to save this battery. There's a great little marina in Ta'Xbiex, Malta, I remember from when I was there. http://www.maltavista.net/en/map/big/v.html See the yacht marina office up at the top of this map up Lazaretto Creek? I doubt Ta'Xbiex has changed much since I rented a house there right after independence from the British in the late 60's. It's a beautiful place. http://www.maltavista.net/en/list/photo/331.html Hmm...looks like they've added quite a few new slips since then, too! Tell your friends you're going there and see how many can come even close to SPELLING it....(c; -- Larry |
#17
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Larry wrote:
( Mika) wrote in : My boat is stored outside, over 6 months every winter, temperature here in Finland being sometimes -30C... Aruba's too far to save this battery. There's a great little marina in Ta'Xbiex, Malta, I remember from when I was there. http://www.maltavista.net/en/map/big/v.html See the yacht marina office up at the top of this map up Lazaretto Creek? I doubt Ta'Xbiex has changed much since I rented a house there right after independence from the British in the late 60's. It's a beautiful place. http://www.maltavista.net/en/list/photo/331.html Hmm...looks like they've added quite a few new slips since then, too! Tell your friends you're going there and see how many can come even close to SPELLING it....(c; I've got a buddy in the BVI who would be very helpful giving advice on your battery or other boat issues. He has both his Captain's papers and his Surveyor Certificate. That would be a great place to while away Dec-March |
#18
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#20
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I have hooked a 5 watt solar panel to my bank (two 8Ds and a group 24
for the genset) and hope they will make it through the winter on the hard next to Lake Superior, where it will get down to -30F. Those 8Ds are just too heavy to move. I will be checking them twice this winter and be able to put the charger on them. Capt. Jeff |
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