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Need a New Battery

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=180304
Printed Date: 13 Aug 2025 at 7:47am
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Topic: Need a New Battery
Posted By: WNYBill
Subject: Need a New Battery
Date Posted: 04 May 2021 at 8:21am
6060 has room for 2 batteries, but I have been using just one since the other shorted out. Now is is time to replace it. I am going to stay with just one battery since we don't use the tractor in the winter. Do I buy a deep cycle with 750 MCA or a regular battery with 800 CCA? The regular battery is $50 more expensive.

Bill


Replies:
Posted By: DrAllis
Date Posted: 04 May 2021 at 8:53am
900 or 1000 CCA is all I would use.

Posted By: Tbone95
Date Posted: 04 May 2021 at 9:56am
What CCA is the 1 battery you're still using?  Does your charging system work?  Do you use a maintainer?

Posted By: WF owner
Date Posted: 04 May 2021 at 10:21am
Years ago, when I had my 7000, I changed from 2 batteries to one (I used a 4DLT). it was about the same price as two regular batteries, fit in the battery tray nicely and started the tractor much better. I wonder how many times a tractor with 2 batteries is starting on 1, because of poor connections on terminals on one?

Posted By: jaybmiller
Date Posted: 04 May 2021 at 10:41am
all I know is my Buda diesel A-C forklift starts a LOT better with TWO batteries than just one....


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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)

Never burn your bridges, unless you can walk on water

Posted By: darrel in ND
Date Posted: 04 May 2021 at 10:46am
So many variables, quality of batteries CCA, condition and size of cables, condition of starter
Darrel

Posted By: Jim.ME
Date Posted: 04 May 2021 at 6:44pm
Food for thought; some info on the differences between CCA and MCA battery ratings:

CCA (Cold Cranking Amps) is tested at 0°F and is the number of cranking amps the battery will deliver for 30 seconds

CA Cranking amps and MCA (Marine Cranking Amps) are tested at 32°F.

COLD CRANKING AMPS (CCA)

The CCA rating represents in amps the current flow the battery can deliver for 30 seconds at 0°F. without dropping below 1.2 volts per cell (total of 7.2 volts for a 12-volt battery). The higher the number, the more amps it can deliver to crank an engine.

MARINE CRANKING AMPS (MCA)
Batteries designed for marine use may be rated at MCA instead of CCA. The MCA rating method measures battery output at 32°F., not 0°F.  Typically a battery's MCA rating will be one-third higher than its CCA rating would be.


To compare two batteries when one has an MCA rating and the other has a CCA rating. Multiply the CCA rating by 1.3 for the equivalent MCA rating. Or, multiply the MCA rating by 0.77 for the equivalent CCA rating.

Examples:

1000 CCA x 1.3 = 1300 MCA  (A marine battery would need a 1300 MCA rating to be the same as an automotive 1000 CCA battery for use at 0°F)

1000 MCA  x 0.77 = 770 CCA (An automotive 770 CCA rated battery will give about the same starting capacity at 32°F as the 1000 MCA rated battery.  It will lack the deep cycle ability of the marine hybrid battery to run trolling motors, pumps, etc.)

Since it has been starting with one battery, I would go with the one Group 31 battery, if it will fit.  Those generally run 900 to 1000 CCA.  And around here the price is better than the price of many smaller ones.

Posted By: HD6GTOM
Date Posted: 04 May 2021 at 9:18pm
Whatever battery you get, put it on a trickle charger for 24-36 hours and put a deep charge into it. It'll last a lot longer if you do.

Posted By: Steve in NJ
Date Posted: 05 May 2021 at 6:53am
Good job on the Battery information Jim!
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

Posted By: WNYBill
Date Posted: 05 May 2021 at 8:08am
Thank you all, off to Sams in hopes of finding a Group 31. Tractor supply doesn't have one in stock.  Then I'll charge it before installing.

Bill


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