Tires: emergency first aid for slow leaks, slow leaks, emergency first aid

Question
I have a very nice little pump that I keep in the
garage to add air to my tires.  It must be plugged into the a.c. outlet.  I would like to
be able to add air away from home when it is needed & no pump is handy. Should I buy a 2nd pump that operates from the 12 v accessory outlet
of the car or look for some kind of inverter?
What is the smart thing to do?

Answer
Hi Mark

As long it don't overload the electrical circuit for this type of machine,I usually recommend getting one where you can hook it up to your battery by connecting the clamps on the battery posts and it hardly takes energy away from your battery but i would have it running aways just in case so it can stay charged up like it should.  Be you do have the right mind of upcoming tire troubles in the future.