Good info for me as well. I would like to add I was using the T-105 Trojans, good batteries. The owner before me was not that experienced in care of batteries. I finally switched them out. Went to Napa and replaced with exact size and voltage. Batteries cost $350 and tax. A warranty of 72 months, with a 36 month total replacement if they go bad. Just some info for you as to finding your Batts locally or interstate rout. BTW I did purchase an interstate for the Ford V-10, that thing is brute. Next 105's I get will prob be interstate.