[AT] Tractor batteries

[drupert at seanet.com]

> Yeah maybe that's right.
>
> Charlie
>
> -----Original Message-----
> From: Ralph Goff
> Sent: Saturday, January 18, 2014 8:19 PM
> To: Antique tractor email discussion group
> Subject: Re: [AT] Tractor batteries
>
> On 1/17/2014 2:59 PM, charlie hill wrote:
>> Am I imagining this or wasn't there a problem back in the day
>> when someone with a 12V neg ground car touched bumpers with
>> a 6V positive (or any positive) ground car?  Metal bumpers.  I seem
>> to remember it was something that had to be taken into consideration.
>>
>> Charlie
> I think only if they were hooking up booster cables to start .
>
> Ralph in Sask.


Charlie, you have stated two of the three conditions that must exist for
this problem to occur:  1) two cars must have opposite grounding and 2)
they must be parked Bumper to Bumper.

Ralph has stated the third required condition and that is the need for a
Jumper Cable(s) to enter the picture.  The Jumper Cable Operator (if he is
not aware that the Bumpers are touching or is not aware that it would
matter if they were) would most likely attach one Cable from the "Positive
Post" on one Battery to the "Positive post" on the other (and do similarly
with the other Cable on the "Negative Posts").

If the bumpers are making good contact then one cable should cause an
electrical short on one of the Batteries (and the other cable should cause
the same effect on the other Battery).

Dudley
Snohomish, WA

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