What Battery Do I Need For an H

dstates · May 21, 2012

I'm 300 miles away from my grandpa's H and I want to show up with the right battery that will fit in the box. [b:dc93aa5364]Are there any part numbers or any specifications I should have when I go to Napa or Farm & Fleet to get a battery?[/b:dc93aa5364]

It is still 6V. My grandpa had an 8V on it before. [b:dc93aa5364]Should I get a 6 or 8 this time around? Will the generator keep an 8V charged?[/b:dc93aa5364]

Thanks for everyone's help!!! I'll post pictures of the retrieval when I get back.

old · May 21, 2012

If all your going to do is load it on a trailer to bring it home just go with a 12 volt car or truck battery that you have at the place already. Shoot a good strong lawn mower battery if that tractor is an easy start tractor will do the job just fine. Once you have it home then you can worry about what battery to go with but I will say this. Since he had a 8 volt battery in it then it had some sort of starting problem since a 8 volt battery at best is a band aid fix to other problems. And if your worried about a 12 volt battery hurting any thing NI it will not I use them all the time to load tractor that are 6 volt. Shoot you can if you are careful just use the battery and starter motor to load them done that many times also. Just back up close to the tractor and put it in 1st gear and have help tp block the wheels.

randy hall · May 21, 2012

the battery box was built to fit a group one battery.

steveolboy · May 21, 2012

Ill measure my box tommorrow and shoot you some dimensions. Call me a purist but if it was 6V, Id leave it a 6V. Same with the generator. Factory equiptment works! Too cool to get gramps machine, Good luck

dstates · May 22, 2012

Thanks for the info everyone...

I appreciate the measurements, steveolboy.

mkirsch · May 22, 2012

I agree with using the 12V battery to start it for loading. You're not going to hurt anything.

Ultimately you'll need to make a decision whether to keep it 6V or make it 12V. The tractor probably needs starter work, generator work, new battery cables, and a new battery. Hopefully you have a good starter shop in the area that you can take both starter and generator to, and have them clean up the commutators and install new brushes. Install a new regulator and you'll be off to the races for the least amount of money.

If you end up having to replace the generator, you should then consider converting to 12V. An alternator is much cheaper and overall more reliable.

David G · May 22, 2012

Some others can comment, but I think it is a group 21

SadFarmall · May 22, 2012

Sorry to disagree, but I would not connect a 12 volt battery to a 6 volt system on my own tractor or anyone else's. If the tractor is fitted with a voltage regulator, connecting it to 12 Volts will not do the regulator a scrap of good and may in turn cause damage to the generator. I think what is needed is the correct dimensions of a Farmall H battery box. Then the correct size battery can be fitted and the tractor started. The original battery was rated at 88 amps at 20 hour discharge rate. I personally use the largest battery that will fit in the box; makes it easier to start the machine in the cold.
SadFarmall

jim warehime · May 22, 2012

Here the deal the tractor has been setting for a long time and
your 300 miles from home, put a 12 volt on it to get it
loaded. Worst case is u will burn out the regulator and the
generator and coil. BUT like I said your 300 miles from home
and a voltage regulator cost 40 bucks and a generator rebuild
is 100 bucks a coil costs 30 bucks SO worst case is you loose
200 bucks but you get your pops tractor home and a 6volt
will wear down far quicker than a 12volt. So its your choice
but just my opinion.

teddy52food · May 22, 2012

If you take the field wire off the generator it won't try to charge. Also take the bat wire off the regulator just to be safe. 12 volts may burn the points if you run it for long. Don't turn on the lights.

steveolboy · May 22, 2012

Imeasured the box on the 1941H and it is (inside dimentions) width 9" height 8" and depth 7-3/8". Most 8volt batteries Ive seen are too wide for the stock boxes, but Ive only had two trying 8v and returned to 6v, one super a and one 2N ford. H's seem plentifull around western NY here. let me know if you find something you need and good luck.

dstates · May 23, 2012

Steveolboy - Thanks for the measurements. I believe lines up with the Group 1 measurements I found online. I plan on grabbing a 6V for it tonight.

Thanks for everyones help. I'm sure I'll have more questions once I get the tractor to my place and get started on it.

sflem849 · May 23, 2012

If it has a mag I would buy a chain instead of a battery!

I have seen a 8v tractor started on 12v with no fire or sparks or anything. Worked fine in a pinch.

I used to be a purist that insisted on running original equipment, but I have changed some. Six volt batteries are ok, but they are more money and harder to deal with. You can jump start a 12 volt battery with anything and use any modern charger without a problem or any goofy methods. 6 volt...not so much.

What Battery Do I Need For an H

dstates

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dstates

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