1566 battery size

Richard G. · Mar 18, 2014

My son's 1566 runs great. It is hard to start. He has a 4DLT battery with 950 cranking amps on it. The starter has been rebuilt. The cables get really warm when trying to start it. What did it have when new as far as batteries and cranking amps. And what size cables does he need.
Thanks for any help.
Richard in NW SC

gbs · Mar 18, 2014

if I make no mistake it came with either 2-3EH 850 cca or 2-4EH 975 cca 6 volts, a 12 volt version is now available is a 3EE I think,you don't have enough amps in a 4Dlt and make sure someone hasn't changed the cables to a smaller wire size with a thick coating making them appear to be larger,i would put at least 2/0 cables on a engine that size,if your boxes will hold 2 group 31 truck batteries there usually over a 1000 cca and may be less expensive and easier to find, beware of 4D & 8D batteries they don't have the cca capacity they claim

teddy52food · Mar 18, 2014

If a cable gets warm, it is too small.

mkirsch · Mar 19, 2014

Originally the tractor would have had dual 3EH 6V batteries in series, one on each side of the steering column.

A 4DLT battery has roughly the same voltage and CCA rating as two 3EH batteries. 25CCA won't make a hill of beans difference.

If the battery is good, that is not your problem.

Sounds like your cables are too thin and/or you have bad connections.

You could add a second 4DLT battery in parallel, running separate cables to the starter and ground for each battery. Then I bet it will fire off like nothing.

gbs · Mar 19, 2014

might want to check the cca of 1-4DLT at 950 cca which is doubtful it has that much against 2-3EH 6 volts 850 cca amps each when combined produce 1700 cca,kinda courious how the box held a 4DLT as it is about 4" wider than a 3EH

Owen Aaland · Mar 20, 2014

(quoted from post at 21:52:31 03/19/14) might want to check the cca of 1-4DLT at 950 cca which is doubtful it has that much against 2-3EH 6 volts 850 cca amps each when combined produce 1700 cca,kinda courious how the box held a 4DLT as it is about 4" wider than a 3EH

Two 850 CCA six volt batteries when connected in series to get 12 volts will still only have 850 CCA output. If connected in parallel you would have 1700 CCA but would only have 6 volts.

mkirsch · Mar 20, 2014

(quoted from post at 11:01:55 03/20/14)

(quoted from post at 21:52:31 03/19/14) might want to check the cca of 1-4DLT at 950 cca which is doubtful it has that much against 2-3EH 6 volts 850 cca amps each when combined produce 1700 cca,kinda courious how the box held a 4DLT as it is about 4" wider than a 3EH

Click to expand...

Two 850 CCA six volt batteries when connected in series to get 12 volts will still only have 850 CCA output. If connected in parallel you would have 1700 CCA but would only have 6 volts.

X2

In series, you add Volts.
In parallel, you add CCA.

Two 6V in series will give you 12V and 850CCA, which may not crank the tractor if the starter or cables are iffy.
Two 6V in parallel will give you 6V and 1700CCA, which definitely won't crank the tractor.

Two 4DLT's in parallel will give you 12V and 1600-1800CCA depending on the brand.

T in NE · Mar 22, 2014

And if you really want to spin things over, give them to a guy who can't tell a 6v battery from a 12v battery, who then puts them in the way the 6's came out.

One argument with a Navy-trained electrician I actually won in high school.

gbs · Mar 23, 2014

if there is no gain in cca by connecting batteries in series why would manufacturers go to all the expense in doing so when 12 volt batteries have been readily available for decades, and why did heavy equipment manufactures use 4 6 volts to get 24 volts instead of 2 12 volts

1566 battery size

Richard G.

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gbs

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teddy52food

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mkirsch

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gbs

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Owen Aaland

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mkirsch

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T in NE

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gbs

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