8 volt battery in 6 volt boat
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Category: General Correct Craft Discussion
Forum Name: General Discussion
Forum Discription: Anything Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=40127
Printed Date: April-28-2024 at 3:46pm
Topic: 8 volt battery in 6 volt boat
Posted By: GMacLaren
Subject: 8 volt battery in 6 volt boat
Date Posted: October-28-2016 at 12:12am
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I've noticed some antique boat owners use 8 volt batteries on their boats -- boats originally designed to use 6 volt systems. They claim better starting, etc. I find many sources of 8 volt chargers and/or tenders -- used by owners of old tractors, car and boats using (original) 8 volt systems. But the antique boats I'm noticing used 6 volt systems originally. Can anyone describe how an old " 6 volt" boat can be set up (modified?) to run an 8 volt battery. (One owner told me he's always run an 8 volt battery in his 1947 Chris Craft, but he had no idea how it was maintained by the generator, etc.) -=Grant=- ------------- -=Grant MacLaren=- Retired Expert http://www.grantmaclaren.com/72skier" rel="nofollow - http://www.grantmaclaren.com/72skier |
Replies:
Posted By: 8122pbrainard
Date Posted: October-28-2016 at 12:53am
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Grant, Anyone using a 8 volt on a 6 volt system has problems. The 8 volt crutch is only used by back yard hacks and it doesn't work. Even with the 3rd poll regulator advanced all the way on a 6 volt generator to try and get more volts out of it, it will only produce about 8 volts so it will not fully charge a 8 volt battery!! ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: GMacLaren
Date Posted: October-28-2016 at 10:52am
Some of those back yard hacks must be wealthy: ------------- -=Grant MacLaren=- Retired Expert http://www.grantmaclaren.com/72skier" rel="nofollow - http://www.grantmaclaren.com/72skier |
Posted By: 81nautique
Date Posted: October-28-2016 at 10:55am
| So are they using 8 volts to try to get a little faster crank? 6 volt systems tend to turn over pretty slowly don't they? |
Posted By: GMacLaren
Date Posted: October-28-2016 at 11:03am
Yes, faster cranking. (I've seen it on Model "A" Fords also.) I've always thought it better to make the 6-volt system right -- rather than use an 8 volt battery. But my question is -- is there some way these folks can keep the battery charged properly in their boats? ------------- -=Grant MacLaren=- Retired Expert http://www.grantmaclaren.com/72skier" rel="nofollow - http://www.grantmaclaren.com/72skier |
81nautique wrote:Posted By: 8122pbrainard
Date Posted: October-28-2016 at 11:52am
Alan, Yes, the idea is to crank the engine faster but, it only works for a short time. Since the generator doesn't put out the proper charging volts for the 8 volt battery, the voltage of the battery will drop and then cranking speed is almost back to what it was with a 6 volt battery. A properly tuned engine with good cables (00) and a good battery will have no starting problems. As mentioned, the 8 volt is a short term "crutch". ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: Hollywood
Date Posted: October-28-2016 at 12:16pm
| Basically have to charge it to 8 at home. Not a problem for the trailer queens! |
Posted By: KENO
Date Posted: October-28-2016 at 1:11pm
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Or you could buy a 8 volt alternator to go with that 8 volt battery or to keep Pete from having a non originality stroke you could buy a 8 volt gener-nator . See link below http://www.gener-nator.com/" rel="nofollow - gener-nator |
Posted By: 8122pbrainard
Date Posted: October-28-2016 at 1:40pm
Or simply convert to 12 volts!! Then you don't have to pay the outrageous cost of both the 8 volt battery and a 8 volt generator!! Might as well go with a 1 wire alternator to really go from original! All you then need are the light bulbs! Gauges are fine since they are dual coil averaging so the volt difference is minimal. The starter motor will really crank that engine over for those back yarders that can't tune up an engine!!!  ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: GottaSki
Date Posted: October-28-2016 at 4:20pm
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Ok, who are you, and what have you done with Pete? ------------- "There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing." River Rat to Mole |
Posted By: Hollywood
Date Posted: October-28-2016 at 5:20pm
| Pete likes to crank it smooth and slow and others like it hard and fast. Different strokes for different folks. |
Posted By: GMacLaren
Date Posted: October-29-2016 at 1:16pm
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I found this to be of interest: https://www.youtube.com/watch?v=zAEp7UAkDTo" rel="nofollow - LINK The next time I see an old boat running an 8 volt battery, I'll investigate a bit more thoroughly. And, if you want to see a "6 volt system" in operation, take a look at https://www.youtube.com/watch?v=yZHv_Re8wIY" rel="nofollow - SOUPER ------------- -=Grant MacLaren=- Retired Expert http://www.grantmaclaren.com/72skier" rel="nofollow - http://www.grantmaclaren.com/72skier |
Posted By: GlassSeeker
Date Posted: October-29-2016 at 2:41pm
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This thread reminds me of the Great Chris Farley Fat guy in a little coat ------------- This is the life |