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Lib 
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Joined: 06 Mar 2020
Location: Lyman, Maine
Points: 10
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 Topic: Need replacement battery
Posted: 24 Sep 2020 at 8:49pm |
I have a 1955 Model B. Looking for a new 6volt battery of correct size and rating. What is the required battery group size, CCA and where can I buy one. Its a positive ground. Thank you 
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Jim.ME
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Joined: 19 Nov 2016
Location: Maine
Points: 959
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Posted: 24 Sep 2020 at 9:14pm |
Not much for a choice here, I can see, not like 12 volt batteries. I believe you should have a 6 volt, group 1 battery in a B. Don't expect you will find much difference in CCA with these. They are usually available at auto parts stores and places like Tractor Supply. One problem is most places don't sell many of these and they get old setting on shelves, which doesn't help their longevity. Most batteries I've gotten lately have date stickers on them, try to find one 6 months or less old. People have their favorite brands but 6 volt is luck of the draw to me.
As far as ground you control that by how you connect the cables, the battery doesn't care.
JMHO
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Steve in NJ
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Joined: 12 Sep 2009
Location: Andover, NJ
Points: 11926
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Posted: 25 Sep 2020 at 6:17am |
The Deka 701 6V Battery was replaced by the 901. The 901 has more CCA's to it. It is a group 1 Battery like Jim mentioned. If you have a Deka dealer local, they are a real good Battery. Well sell em', but can't ship em'.... HTH Steve@B&B
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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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john(MI)
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Joined: 12 Sep 2009
Location: SE MI
Points: 9262
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Posted: 25 Sep 2020 at 9:47am |
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Might want to measure the battery box to make sure whatever you decide on will fit.
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D14, D17, 5020, 612H, CASE 446
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Lib
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Joined: 06 Mar 2020
Location: Lyman, Maine
Points: 10
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Posted: 25 Sep 2020 at 10:57am |
Thanks to all for the replies. Forgot to ask one question. I have a friend with a 1952 Chevy PU; factory 6 volt system. Uses an 8 volt battery. Not sure where he got it. Would it be safe to run one in the B. Actually, the tractor cranked over just fine, nice bright lights when the 6 volt was taking a charge. Now has failed; won't take or hold a charge. Generator working fine. Thanks again, Lib
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HoughMade
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Joined: 22 Sep 2017
Location: Valparaiso, IN
Points: 706
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Posted: 25 Sep 2020 at 11:00am |
6 volt, group 1.
Believe it or not, I found 1 at Batteries+Bulbs that is perfect and starts my B every time. Even though it can go weeks before starts and is not on a maintainer, always starts.
'Course, I completely rewired the tractor, went over and cleaned every electrical connection and get great charging out of the original generator, but it works perfectly with my totally stock (except for the new wires) system.
I suppose you can use an 8 volt...but if everything is working, why?
Edited by HoughMade - 25 Sep 2020 at 11:01am
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1951 B
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SteveM C/IL
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8494
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Posted: 25 Sep 2020 at 11:32am |
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I think people went to 8v back when overhauling with oversize sleeves and pistons. 6v struggeled.
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Steve in NJ
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Joined: 12 Sep 2009
Location: Andover, NJ
Points: 11926
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Posted: 25 Sep 2020 at 4:11pm |
Don't bother with an 8V. They're a pain to charge. A good working 6V system will charge a 6V Battery with no problem. Some folks use 8V Batteries as a bandaide for a slow starter or worn Generator. If all components are in tip top shape, and all wiring and connections are on the money, you shouldn't have any problems. Sluggish tired out Starter motors, worn Generators, and poor wiring and grounds are the downfalls of the 6V system. The 6V system needs a lot more TLC than a 12V conversion system.... HTH Steve@B&B
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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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Alvin M
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Location: PA
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Posted: 25 Sep 2020 at 5:24pm |
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I Use 2/0 Fine Wire Cooper Welding Cable For 6V They Will Turn Good If Starter is Ok
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Brian Jasper co. Ia
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Location: Prairie City Ia
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Posted: 26 Sep 2020 at 12:23pm |
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Alvin hits on a very important issue with 6v. Ohm's law is since you have half the volts (compared to 12v) it takes twice the amps to do the same work. You need larger gauge cables to carry more amps. 02 is the minimum for a 6v system.
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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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DennisA (IL)
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Joined: 11 Sep 2009
Location: Ridott IL.
Points: 2064
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Posted: 26 Sep 2020 at 12:58pm |
 Steve in NJ wrote:
Don't bother with an 8V. They're a pain to charge. A good working 6V system will charge a 6V Battery with no problem. Some folks use 8V Batteries as a bandaide for a slow starter or worn Generator. If all components are in tip top shape, and all wiring and connections are on the money, you shouldn't have any problems. Sluggish tired out Starter motors, worn Generators, and poor wiring and grounds are the downfalls of the 6V system. The 6V system needs a lot more TLC than a 12V conversion system.... HTH Steve@B&B
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That’s the ticket!
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Thanks & God Bless
Dennis
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