My JD 4440 has two large 6v batteries, wired in series. I’m not sure what the reason is, but it seems to be the norm for larger tractors of that era. My Oliver 1555 is much smaller and has one 12v battery. It’s also gas powered. What is your new tractor?
you will need the 2 6v with that motor if you plan on using it below 32 deg. without having to keep the block heater plugged inIts a Oliver 2150 Hercules Diesel 2WD
I just looked over at Tractor Data, and that calls for FOUR (!) 6V batts. That’s quite a wallop! Then again batt technology has advanced since then. Whichever will give you the most reserve is what I’d go with.New to me tractor has the ability to except 1, 12 v battery or 2, 6v batteries any advantage of the 2, 6v batteries? the 1, 12v needs to be replaced
Its a Oliver 2150 Hercules Diesel 2WD
If you have the room I would go with this one. I never liked 6volt batteries and having to deal with the jumper cable. The con is they are heavy.
https://www.napaonline.com/en/search?text=4d+battery&q=N=2500070+2607009+2815897+2000044+101289400&Nty=1&Ns=P_PCCSeq|asc||P_MPCCDisplaySeq|asc&Score=0.89&referer=PLP&leftNav=leftNav
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