With all due respect I think whoever told you that is blowing smoke. Only thing a bigger alternator pulley does is increase the engine RPM's where the alternator starts to charge.
Further batteries care ONLY about voltage - not alt pulley diameter, tractor brand/color, etc.
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Incidentally we had a CIH 9280 that ruined a brand new set of batteries in less than 3 weeks. Turned out the VR was bad - it was holding system voltage around 15.8 volts. This quickly boiled the new batteries into junk. (However for working after dark the lights were wonderfully bright!)
Replacing the regulator - also replacing an inoperative voltmeter in the dash panel - solved the problem.
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Today's Featured Article - Trenching With a Plow - by Staff. Introduction: This interesting information came from one of the discussion forums here at YT. We thought we should place it up front so it could be read by anyone interested in putting old iron to work. [Editor] I tried something new today, and it worked so well I thought I should post it - in case it might help someone else. I'm running 100 yards of 4" drain pipe from the gutter downspouts of our house to a pond down the hill. This should hel
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