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09-22-2014, 09:01 AM | #1 |
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12 to 6 volt Battery trickle charger
Is it possible to convert a HF 12 volt trickle charger to 6 volts?
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09-22-2014, 09:44 AM | #2 |
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Join Date: Jul 2010
Location: Cow Hampshire
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Re: 12 to 6 volt Battery trickle charger
I have two of these HF devices on various 12v standby batteries.
I would wonder about the "electronics" (heh - even if they have any) and what effect that going at the device with (say) 60VAC (step down transformer) might have on the monitoring circuit. It may be possible to put two "matched" 6V batteries in series - and use a 12V charger on them. Maybe better would be to find one of the plug-in "wall warts" (power supply) which puts out in the 7.5 to 8 volt range. These usually put out in the milliampere range (500 is typical) and use a common timer unit to turn it on for 10 minutes a day. Maybe a "bridge" resistance circuit? This would chew up a lot of power as heat - and one would be required to adjust the bridge contact to maintain a reasonable charge rate on the battery. Sort of defeats the "hands-off" objective of a battery maintainer. Maybe better to fork out the $60 for the commerical 6V chargers? Or put a 2a charger on the 10 minute timer like I do. About once a month check the electrolyte level with ANY charger. Edit: I see Amazon shows at least 2 6v battery maintainers in the $20 range (Prime shipping.) See http://www.amazon.com/s/ref=nb_sb_no...ttery+ma%2Caps Joe K
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09-22-2014, 09:48 AM | #3 |
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Location: Illinois
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Re: 12 to 6 volt Battery trickle charger
You are better off purchasing a 6 volt battery tender.. I got one on ebay and it works great and they are not expensive..
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09-22-2014, 09:50 AM | #4 |
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Join Date: Jun 2010
Location: Owosso, MI
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Re: 12 to 6 volt Battery trickle charger
One that handles 6V can be had at most auto parts for under $30... I got mine at our local Meijer Store (like a Wal-Mart only Michigan based). I can't imagine trying to convert a HF one to 6v and then have to worry about a fire, or frying a battery that costs more than the charger.
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09-22-2014, 09:50 AM | #5 |
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Re: 12 to 6 volt Battery trickle charger
Thanks Joe: I think the Amaazon route would be the least Trouble
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09-22-2014, 12:32 PM | #6 |
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Location: Southern California
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Re: 12 to 6 volt Battery trickle charger
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What is a really good feature is that the charger will not turn on unless connected to a battery. If one of the leads should fall off it shuts off. There are three indicator lights. When plugged into power one tells you it does not see a battery. When connected to a battery the second one tells you it is charging, the third tells you when the battery is fully charged. Tom Endy |
09-22-2014, 01:08 PM | #7 | |
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Re: 12 to 6 volt Battery trickle charger
Quote:
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1929 Model A Barn find. California car, just a few more parts to find. Interior, steering box (rebuild), and I am sure much more! |
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09-22-2014, 01:32 PM | #8 |
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Join Date: May 2010
Location: Tulsa Oklahoma
Posts: 298
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Re: 12 to 6 volt Battery trickle charger
Amazon shows a 6v/12v Charger for 18 bucks. I paid a lot more for my Battery Tender Jr. and find I don't need it. I did add a main cut-off switch from the battery on the coupes seat riser and have had no issues, but peace of mind as the car is at my cabin and starts excellent after,sometimes, a couple of weeks non-use.
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