I have a 2002 f250 power stroke with a bobcat 225 and i was wondering if you guys had battery shut offs on your rigs. I thought i read on 1 post that someone never used 1 and had no troubles toasting the computer while welding on the back of the truck. I put 1 on my frieghtliner and always used it before welding off the back of truck. I was wandering if there is something i dont know or is that guy just lucky he hasnt toasted his computer. So far i have always unhooked my batterys before welding off my f250's vise and unhooked the batterys on any truck with a computer that i was welding on. I have a heavy duty flaming river brand shut off to put on if needed. Any info would be helpful.