I use the inflator daily, probably my most used tool in the truck. I manage a fleet of 145 vehicles and 50 trailers, mostly 1/2 ton and 1 ton trucks with some Colorados, Vans, and SUV’s for management. Whenever I come across one of our trucks I don’t see regularly I do a quick inspection and top off the tires, pressures are 35-80 psi. I used to carry two M12 inflators for this and 4 M12 6.0 batteries, now I just carry the single M18 and two 8.0 batteries. The M18 inflator does a series of pressure checks as you approach the set pressure, usually 2-3 then it locks in the final pressure. It also has a cooling fan for the motor and most importantly memory settings (no more starting at 0 and having to adjust every time you turn it on, just select one of the 4 memory settings as a shortcut). I also added a quick disconnect adapter stolen from one of my M12’s.
I’m in the yard while typing this, here is some performance data:
265/70R17 1500 tire from 34 to 37 psi 18 seconds with two stops
265/70R18 2500 tire from 69 to 80 psi 1:42 with three stops
265/70R18 2500 tire from 54 to 80 psi 4:30 with three stops, the fan ran for a minute after completing this tire
The M12 inflator would’ve burned an entire M12 6.0 battery on that last tire (if it even finished it) this M18 with a 8.0 battery is showing 3 bars remaining after those three and a two other four tire top offs earlier in the day. The M12 is great for bikes and occasional use on cars, but not for my commercial use.