Not quite on this subject, but after 20 years of running my 87 model 4450 with the stock two 6V setup, I converted to a single large 12V. This tractor never did crank very strong, always did hesitate a bit pulling that first cylinder over compression. For years, others have told me how well their tractors work when replacing those two series wired 6V batteries with a single 12V in the left box. I installed the largest Interstate brand 12V battery that would fit the battery box, I believe it is rated 950 CCA. I added a short heavy ground cable bolted under one of the starter mounting bolts. It works great, cranks faster than the twin 6V setup ever did. I suspect eliminating two sets of post / clamp connections and 3+ foot of cable eliminated a lot of voltage drop. I used it all last season with good results, never use the tractor in winter, so was not too worried about very cold weather starting. I have cranked it up several times this spring when the temp was not above 20 degrees, and it started better than it ever did with the two sets of twin 6V batteries I have worn out in it.
It cranked faster with the single 12V in warm weather and also cranks faster at 20 degrees.
Where it used to have to turn a half dozen times to start at that temp with the old setup, it now lights off on the first turn or very close to it.
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Today's Featured Article - A Question for Dads This recent topic from the Tractor Talk discussion board is being highlighted because it is an awesome display of the caliber of individuals that have made this site their own. The young person asking questions received positive feedback and advice from total strangers who "told it like it is" with the care many reserve for their own kids. The advice is timeless... so although it isn't necessarily antique tractor related, it will be prominently displayed in our archives to honor those who have the courage to ask and those who have the courage to respond in an honest, positive manner.
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