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Dick

08-21-2000 08:11:16

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Time for new batteries but which is best? Are two smaller 6 volt better than one larger 12 volt? Thanks Dick

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chuck mcdonald

08-21-2000 20:32:19

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Re: 630 in reply to Dick, 08-21-2000 08:11:16

hey,
i dont think so. If you have 2 batteries in series, one will always get more charge than the other battery. Just do what everyone else does and use 1 12V battery. Its cheaper and is prone to less headaches in the future!!
hope i helped,
chaz
aka "Tractor Boy"

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Charles

08-24-2000 11:42:17

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Re: Re: 630 in reply to chuck mcdonald, 08-21-2000 20:32:19

OK, let me ask you this... why would one battery get more charge than the other?
A 12 volt battery is just six 2-volt lead-acid cells in series and a 6 volt, of course, has three 2-volt cells in series. So why would it be any different to have six series-connected cells in one black box or two separate boxes?

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G Taylor

08-25-2000 20:18:27

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Re: Re: Re: 630 in reply to Charles, 08-24-2000 11:42:17

As long as both batteries are exactly the same. Age,level of charge, electrolyte level,rating etc. Can pack more power into one 12V that fills the battery box rather than two sixes that fill the battery box. May as well buy the 12V battery.

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johnboy

08-25-2000 21:25:44

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Re: Re: Re: Re: 630 in reply to G Taylor, 08-25-2000 20:18:27

I disagree. 2 6's will deliver more current. After all, current does the work. Voltage is just the "pressure". Do the math. 6 volts have a lower internal resistance and will deliver more power, especiall in series. Deere did it for a reason!

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G Taylor

08-26-2000 20:02:48

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Re: Re: Re: Re: Re: 630 in reply to johnboy, 08-25-2000 21:25:44

Increased current capacity comes from mainly increasing the surface area of lead plates exposed to to a greater volume of acid. Reserve capacity increases with more acid and lead by weight. More lead and acid can be packed into a battery box if less room is used for the battery case. If two six's are used there is some room taken up with two plastic walls instead of one that could have been lead and acid. Starting to split hairs however. Each to thier own.What ever you do cram that battery box absolutly full with a premium quality battery or batteries of your choice. A small sized and light but high amperage cranking battery tends to have thin plates. Thicker more durable plates and less cranking amps in a deep cycle marine battery and thick robust plates in a built for abuse electric fork lift battery.Cranking amps for a forklift battery compaired to it's physical size is pretty low. Deep cycling or running lead acid batteries constantly partialy charged usually reduces service life.

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