I work at a shop, I am looking for a memory saver since I get alot of batteries thrown at me that need to be done right away. I woul like one that plugs into the obd port since the cig lighter does not always work anymore. Now the hard part, we have a jumper box at the store, but its always out on a jump start, left in another area, dirty, or any other number of things. I have some milwalkee m18 stuff, they have the usb power port for that. I see they have the cig lighter plug for the m12, but not on the m18. Would a obd2 to usb cable pluged into an m18 battery work? Or do those not let power through? I assume a memory saver plugged into the m12 port would work? I dont have any m12 yet........... This could be the push I need to get some. I would like to use the m18 if it is possible. Anyone know?