[AT] Batteries charged backwards.

[Cecil Bearden]

I have a load tester around here, that is what I need..  Thanks Carl.   
Now when it dries up I can get around here to find it... Mud is deep 
right now...
Cecil

On 2/12/2020 4:18 PM, Carl Gogol wrote:
>
> Cecil,
>
> Wondering if a battery load tester would be a good load to draw a 
> battery down?  Perhaps the duty cycle is too low, don’t have mine 
> handy not look at right now.
>
> Carl
>
> Manlius, NY
>
> *From:* AT <at-bounces at lists.antique-tractor.com> *On Behalf Of *Dean VP
> *Sent:* Wednesday, February 12, 2020 3:26 PM
> *To:* Antique Tractor Email Discussion Group 
> <at at lists.antique-tractor.com>
> *Subject:* Re: [AT] Batteries charged backwards.
>
> Cecil,
>
> A 12v light doesn't draw that much current. So will have to be on 
> there for days And then that might draw it down enough to be able to 
> reverse the charge. After it has drawn down on the 12 v bulb go to a 6 
> v bulb. You need to get it down to "0" to be able to reverse the 
> charge.  Don't worry about connecting a fully charged 12V battery in 
> parallel with a dead battery. Normal battery jumper cables are usually 
> not a very big gauge and combined with the internal resistance of the 
> batteries the current will be self limiting and not damage anything. 
> If hooking running car batteries to other dead batteries with jumper 
> cables destroyed good batteries the battery companies would be going 
> nuts. In my experience you don't need it connected very long to get 
> the dead battery voltage up enough to where a smart charger can take 
> over.  I have run into this often enough after my old "dumb" charger 
> went belly up that I was on the lookout for an old  used "dumb" 
> charger to replace one that served me faithfully for over 40 years. 
> Just a month ago I was at an auction here in AZ and danged if there 
> wasn't one that looked like the one I had. Paid $5 for it so the world 
> is now back to its normal orbit again.  Works like the old one. Some 
> days go better than others.
>
> Sent from AT&T Yahoo Mail on Android 
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>
>     On Wed, Feb 12, 2020 at 11:53 AM, Stephen Offiler
>
>     <soffiler at gmail.com <mailto:soffiler at gmail.com>> wrote:
>
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