Late A Single 12 volt battery mount and Ground strap mount

primerk5 · Jul 28, 2014

I don't see the point in having to maintain two 6 volt batteries in my tractor. I'm planning on installing just one 12 volt. I'm wondering how others secure a single 12 volt battery. I'm not sure if dimensionally, the 12 volts and 6 volts are the same or not. If they were I guess i could just use one of the hold downs for the 6 volt. I'm wondering what others may have done.

Also, Where is the ground strap supposed to be secured to the tractor at. It's been so long since I tore my tractor down for restoration I can't remember where it goes.

My tractor is a 48 A

John T · Jul 28, 2014

Using a single 12 volt is the way most guys do it nowadays. I use a big heavy duty like 1000 CCA or so battery for a 12 volt system. Ive rigged some of those Auto Zone type of universal hold downs to bind them or even wooden blocks cut the right size. Even if the ground strap was originally to the sheet metal seat box/frame, I prefer to find a close by in frame 5/16 or 3/8 bolt for grounding purposes.

John T

Mike(NEOhio) · Jul 28, 2014

If you have the under-seat battery box you can put whatever 12 volt that fits and add blocks to keep it from shifting. I stick with the 6 volts. They deliver more amps for cranking. If you go to 12 get one with real high CCA.

John T · Jul 28, 2014

Mornin Mike, Im curious what brand and type of 6 volt batteries are you talking about that "They deliver more amps for cranking."

I ask because using batteries in series neither the Cold Cranking Amps or the Amp Hours are additive (voltage is additive). In other words if one of the 6 volt batteries has say 600 Cranking Amps, then two in series still only has 600 cranking amps. Therefore to be able to "deliver more amps for cranking" those 6 volt batteries (or 2 in series) would have to have a higher rating then the 12 volt battery you might use as a replacement.

I like to use a single 12 with a rating of 1000 CCA so if you wanted to use two sixes in series, each would need to be rated 1000 CCA and I'm curious what brand type and size of six volt batteries (and what CCA, 1000 or more???) you are using?? Is it a lead acid or an AGM

Thanks for your info in advance.

John T Retired Electrical Engineer

primerk5 · Jul 28, 2014

Is 1000 CCA a necessity for an A that isn't high compression and not normally run in the winter weather?

Just thought i'd ask. I normally buy high CCA for my vehicles.

CharlesTx · Jul 28, 2014

Battery group 24 or 65 will work. I found 65 to be
not as tall as the 24. I moved the ground strap
under one of bolts that holds the battery box.Pp

Mike(NEOhio) · Jul 29, 2014

Didn't mean to start a debate, John. I use whatever TSC sells and haven't had any trouble even in near-zero weather, and I usually get about 10 years out of them. Why, then do 6-volts need a larger size cable to perform properly? Or is that because of line drop. I recently got an Oliver 1550. It's gas and has one 12-volt but the diesel version used two 6s.

primerk5 · Jul 29, 2014

(quoted from post at 10:49:09 07/29/14) Didn't mean to start a debate, John. I use whatever TSC sells and haven't had any trouble even in near-zero weather, and I usually get about 10 years out of them. Why, then do 6-volts need a larger size cable to perform properly? Or is that because of line drop. I recently got an Oliver 1550. It's gas and has one 12-volt but the diesel version used two 6s.

I haven't figured this out either. Our International 656 diesel has 2 6 volts. I don't get the purpose of that either.

Mike(NEOhio) · Jul 29, 2014

Yes, low compression, but still a lot to turn over. Clean, tight connections are important and use the compression reliefs. Clean them out if they're plugged. Make sure the spark timing is right. I don't think 1000 is necessary.

point3dave · Jul 29, 2014

Bungee cord and interstate bats starts my old 1950 A
every time. Dave

Late A Single 12 volt battery mount and Ground strap mount

primerk5

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John T

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Mike(NEOhio)

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John T

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primerk5

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CharlesTx

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