Perhaps a 9V for memory back-up for Hours, Mileage. etc. if the battery is removed? Just guessing here. ~Scotty
It is for the computer hook up when they run a test on your machine. They put the battery in it so it has constant power for the test. Hope this helps
Last edited by stone7; 08-14-2013 at 06:51 PM.
JD 4720, JD 445
2011 JD 2520 with 200cx loader, 61" materials bucket, and Artillian JDQA Pallet Forks (42" forks). 62D MMM, ballast box, turfs, and loaded rears.