[AT] JD 620 / charging six-volt batteries

[David Rotigel]

Why would you replace both of the batteries if only one of them is bad? I have an older golf cart that has 6, 6volt batteries. When I first got the cart (5 years ago) I replaced all of the batteries since none of them would take a charge. About 2 years ago it would not get up to speed, and I found that ONE of the batteries was bad. On the recommendation of the dealer I replaced ONLY that one. That was two years ago and it has been fine ever since. (At $100.00 per battery, $100.00 seemed a lot better that $600.00)
	Dave

On Nov 20, 2014, at 8:53 PM, Dean VP <deanvp at att.net> wrote:

> Dean, I would recommend charging both of them at the same time as a 12 V battery. 
> 
> Dean VP
> Snohomish, WA
> 
> The real art of conversation is not only to say the right thing at the right time, but also to leave
> unsaid  the wrong thing at the tempting moment.
> 
> 
> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of
> Dean Vinson
> Sent: Thursday, November 20, 2014 6:41 PM
> To: 'Antique tractor email discussion group'
> Subject: [AT] JD 620 / charging six-volt batteries
> 
> When charging either of the two six-volt batteries in my 620, do I need to
> worry about disconnecting them from each other?   
> 
> http://www.vinsonfarm.net/photos/620_batteries_20140703.jpg
> 
> They're wired in series to provide 12 volts to the starter, so the (-)
> terminal of the grounded battery is directly connected to the (+) terminal
> of the other battery.   Hooking the (-) clamp from the charger onto the (-)
> post on the grounded battery (good) is therefore electrically the same as
> hooking it to the (+) post on the other battery (bad).  So I've been
> disconnecting that big jumper cable between the two batteries.
> 
> But as I think about it, it shouldn't make any difference unless there's
> some path by which the charging current is being applied to the other
> terminal of the second battery also.  Correct?  No complete circuit to that
> battery, no effect of touching only one of the posts?
> 
> Thanks--
> 
> Dean Vinson
> Saint Paris, Ohio
> 
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