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Old 08-09-2018, 03:27 PM   #1
rer_239
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Default dead battery

i think i remember that i could use a 12 volt charger to charge a 6 volt battery if the lights weren't on, is this correct?
thanks
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Old 08-09-2018, 03:38 PM   #2
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Default Re: dead battery

Depends on the charger. Google your question, you will get technical answers to your question.
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Old 08-09-2018, 03:43 PM   #3
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Default Re: dead battery

No. Don’t charge a 6 volt battery with a 12 volt charger.
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Old 08-09-2018, 05:06 PM   #4
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Default Re: dead battery

If it's like most chargers it will shut itself down if you try to charge a 6V batt with 12V. Otherwise it will burn up, maybe you with it.
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Old 08-09-2018, 05:45 PM   #5
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Default Re: dead battery

Buy a maintainer 6-12. Buy a manual 6-12 charger.
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Old 08-09-2018, 05:49 PM   #6
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ok thanks.
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Old 08-09-2018, 06:04 PM   #7
Ernie Vitucci
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Default Re: dead battery

Good afternoon...If you can drive your Model A as little as 10 miles a week, you will not need a charger and your fuel will stay fresh with just a bit of Marvel Mystery Oil added to your fuel...All a Model A asks is to be loved and used. Ernie in Arizona
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Old 08-09-2018, 10:23 PM   #8
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Default Re: dead battery

Quote:
Originally Posted by wmws View Post
No. Don’t charge a 6 volt battery with a 12 volt charger.

Start a 6 volt on a 12 volt battery but yea, don't charge it on 12 volts!
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Old 08-10-2018, 04:20 AM   #9
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Default Re: dead battery

Yes, you can charge a 6 volt battery safely on a 12 volt charger, but ONLY if you use correct resistance in series with the charger leads. Use a 12 volt light bulb in series, and it will safely charge the battery. Use a tail light bulb for low charge, or a headlight bulb for a higher charge rate.


I only use a 6/12 charger with a volt meter with numbers. I use my old Sears charger the most. It's rated 6 amps, has a volt meter with numbers, and a 6/12 switch.
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Old 03-20-2024, 03:18 PM   #10
Gene F
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Default Re: dead battery

When I was a kid I worked at a service station, and we worked on tons of cars, towing too. If you ever saw a battery bow up you would never even consider such a thing.

If a battery has just a little charge, just get a couple neighbors, and push start the thing.
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Old 03-20-2024, 10:11 PM   #11
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Default Re: dead battery

Many of the older battery chargers did not have a fuse. The transformer windings were the "fuse" and would burn up if a short occurred or hooked up in the wrong way.(6 or 12 volt). Some had a cheapo circuit breaker that I wouldn't trust either. DON'T leave those type chargers unattended.
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Old 03-21-2024, 10:31 AM   #12
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Default Re: dead battery

Quote:
Originally Posted by wmws View Post
No. Don’t charge a 6 volt battery with a 12 volt charger.
Ditto
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