Look in the 2440 battery thread for my post there on the large single 12v battery I run and guarantee that the 1600 cca battery I have gives me higher cranking voltage (measured at the starter) and faster cranking and more than enough reserve power than I have had with 2 12volt batteries and I never had it slow down in the least cranking my 4020D. The battery was 120$ at teh local farm chain store, I have had it for 2 years now, -10 degrees F did not phase the battery at all when I started it up (and I could not use my block heater so it was totally cold). Run 00 short cables both directly to the starter and you will not be sorry. It is physically larger than 2 of the "skinnies" put together, taller longer and wider. I had 2 high performance skinnies in paralell before this and I can tell a huge differance. Make sure you have a good starter like the 4.0 or 5.0 kw Denso starter. Better batteries on the 2.3kw delco Deere gives you in kits and put on a lot of 12 v engines is like putting perfume on a pig. I put a picture there as well showing my set up.
email if you want more information on what I have set up. just keep in mind two batteries means more cables and connections to corrode, more cost in batteries to buy and replace them, more places for problems. I always try to keep is simple and straight forward.
This post was edited by 4020_1966 at 21:25:41 10/12/12 2 times.
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