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Jon(OH) 
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Joined: 12 Sep 2009
Location: New Phila.Ohio
Points: 48
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 Topic: 8 volt battery charging.
Posted: 26 Dec 2011 at 12:35am |
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How do any of you guys charge 8 volt batteries ? My Wife got me a Diehard charger/maintainer for Christmas it has a 2amp12volt setting and a 4amp 6volt setting.I know this has been asked here before but I can`t seem to find it.
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Jeff Z. NY
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Joined: 11 Sep 2009
Points: 7326
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Posted: 26 Dec 2011 at 2:51am |
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http://www.amazon.com/Battery-Tender-Volt-1-25-Charger/dp/B003D5I66E/ref=sr_1_1?ie=UTF8&qid=1324889373&sr=8-1
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I Love Meatballs and Dumplings on Toast with Gravy and Rosemary and ??? {Open For Suggestions}
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Flint23
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Joined: 31 Jan 2011
Location: New Haven In
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Posted: 26 Dec 2011 at 2:58am |
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I would charge mine on the 6 volt charge.
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been there done that, not doing it again...
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CTuckerNWIL
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Joined: 11 Sep 2009
Location: NW Illinois
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Posted: 26 Dec 2011 at 6:48am |
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When my G wasn't charging, I used the 6 volt setting on the charger a couple times. It worked fine.
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David Maddux
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Posted: 26 Dec 2011 at 6:56am |
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My battery guy said he could get an 8 volt charger.
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jaybmiller
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Joined: 12 Sep 2009
Location: Greensville,Ont
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Posted: 26 Dec 2011 at 7:01am |
You could use the 12V setting but add 5 power diodes(50V,10A) in series.This will reduce the 12V to properly charge the 8 volt battery.
The 6V setting shouldn't have enough 'juice' to charge the 8 V battery. If it did it'd 'cook' the 6 volt batteries..
All depends on who in China designed and made the charger....
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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CTuckerNWIL
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Location: NW Illinois
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Posted: 26 Dec 2011 at 7:10am |
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My charger is probably 50+ years old and not made in China. The 6 volt setting works fine. I don't question it, I just use it if the battery gets down to where it won't turn the engine over.
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dave63
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Location: Lineboro Md
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Posted: 26 Dec 2011 at 7:44am |
If you charge overnight on 6 volt setting you wouln't overcharge. Then set the charger on 12 volt 2 amp it will push 4 or 5 amps into it on that setting for a short time. be careful not to let it there long it will cook it.
If you have a volt meter you can use that to help prevent from overcharging.
I have a variostat wired in that i can set the voltage anywere that i need. If you can set the charger voltage 1 or 2 above the battery voltage and it takes a couple amps you can sometimes restore older batteries.
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The universal answer to all questions is yes, how much do you want to spend?
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Lyle124
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Joined: 12 Sep 2009
Location: Mo.
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Posted: 26 Dec 2011 at 7:55am |
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you can chargr it on 6 volt it just won't fully charge it. Lyle
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5040 Bad Boy Mower
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jaybmiller
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Location: Greensville,Ont
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Posted: 26 Dec 2011 at 8:23am |
If you just want a 'trickle' charger , find a 9 volt 'wall wart' style ac/dc adapter good for 1-2 amps.An 8 volt battery like 8.8 volts as a 'float' charge.
Nowadays you can buy '9 volt AC adapters' for $5-$6. Better deal than the $60 'battery tenders' which while they have a microcomputer in them aren't really worth money.
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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Steve in NJ
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Posted: 26 Dec 2011 at 10:15am |
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As Tuck said, you can charge an 8V Battery on the 6V range setting if your charger is equipped with the 6V range. The reserve will not be high in the Battery, but should be active enough to start the Tractor. I've been successful in the past charging 8 volt versions that way.
Steve@B&B
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Gerald J.
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Location: Hamilton Co, IA
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Posted: 26 Dec 2011 at 11:04am |
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I only pay $20 for battery minders, not from HF either.
Gerald J.
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Jon(OH)
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Joined: 12 Sep 2009
Location: New Phila.Ohio
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Posted: 26 Dec 2011 at 11:39pm |
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Thank you for all the info.
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roughstock
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Location: Michigan
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Posted: 27 Dec 2011 at 10:49am |
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I use a 6 volt charger o charge my 8volt battery just like I use a 12volt charger to charge my 13.8 batteries for my trucks.
Brian
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