Good replies. I use a small diameter air hose from Lowes or Home Depot and a standard tire air chuck. If you are not familiar with these fittings be AWARE when disconnecting. Be sure to hold the hose securely with one hand, and the sleeve on the female fitting with the other. Serious injury could occur as the hose blows out if not.
The only time there is enough air to fully inflate tires is just at the moment the compressor cycles off. ( you can here it operating when the engine is running). If the air pressure falls below 105 or so while airing tires, just expell some air from the hose to cause the compressor to start running again to build up more air. However, if you are in a low tire situation because of a leak, any air is far better than no air. This connection is a great tool to have available.
Not a big deal though, unless there is a leak, your tires will do well at holding their air pressure. I have 25,000 miles and have checked and topped them off many times and have yet to find any more than 5 lbs. off. I use 110 lb. front and 115 lb. rear, just me.
2015 Legacy 340KP
2012 Wrangler Sport