Yeah, mine had a cigarette lighter adaptor. You can get a cigarette lighter outlet from a auto parts store and connect it to a 12 volt battery to keep you from having to modify the electric pump. You can also connect it to a car's outlet as well. On the setup on my website, I could get dozens of shots at 150 psi before needing a recharge. If you are using one with a built in battery, I would expect similar results. Especially when you consider how long they take to air up a car tire.