FIRE UP wrote:
Brian,
I've had them all. 12V, 120VAC, and engine driven ones (on many of our previous Jeeps) and without a doubt, a 120VAC one is the way to go. Yes, some of the 12V ones work but, after dealing with all sorts of air compressors for years, to me, the 12V units, yes even the Viair ones, don't do well. Now, one thing here. Topping off tires is one thing. Using those 12V units for complete fill ups or higher volume is tough on them.
I have the Craftsman 150 psi portable that many on here also use. It's now marketed by Porter Cable but, it's the same exact compressor. I'd recommend it in a heartbeat. I also have a Viair 400P that I use for backup, just in case my 120VAC one goes south.
What I carry in the Jeep now is a 10# CO2 system. The tank is an Aluminum 10 lb. unit with a fixed, 150 psi regulator. I have a 25' Flexilla hose with a cheaper air chuck with a gauge. All in all, I've got about $154.00 wrapped up in that C02 system. For your application of topping off tires, that system would last you for quite a while without getting the bottle refilled. Mine costs me right at $16 for a refill.
Below is the model of the Porter Cable I have but, I paid a whole lot less for it.
Scott
https://www.sears.com/porter-cable-porter-cable-cmb15-150-psi-1.5/p-SPM10067945020?plpSellerId=Action%20Packaged%20Inc&prdNo=7&blockNo=7&blockType=G7
Solid points. I feel like I understand the limitations of the type of compressor I'm after, but these are solid considerations. The CO2 deal sounds really awesome. Where do you get that filled? The price is pretty good too.