T&T: Battery monitor

[Mark Richter]

<<I am doing something similar and was unable to find the draw for the 
starter
for my John Deere 4045 (120HP 4.5 liter 4 cyl turbo). I contacted the folks
at John Deere and they indicated that it would draw significantly in excess
of 500 AMPs and indicate that I should use a 1000 AMP shunt.>>

Randy,
I have the naturally-aspirated 4-cyl John Deere  (which uses the same 
starter as yours, I believe), and it draws about 400 amps while cranking. 
It also starts immediately, in less than one second of cranking, so that I 
have to depress the stop button while cranking in order to crank long enough 
to get a current reading on the Xantrex Link 1000.  The 500 amp shunt has 
been fine,  for 11 years now.  I doubt you need the 1000 amp shunt, but 
others with much larger diesels might need it.

Mark Richter, m/v Winnie the Pooh, Ortona, FL on the Okeechobee Waterway
Mark's Mobile Marine