robertj298 

Seems pretty cool. A bit slower than a pump but smaller and no effort.

dddd

Those perform well, especially since their modular battery is big enough to drive other power tools.

The one at the co-op seems to have been getting heavy use for a long time now without issue.

I would buy one that uses the same battery as my other cordless tools.

Pompiere

I have one and I love it. It was only around $20. I have had Ryobi tools for a few years now, so I already had plenty of batteries. It only takes a few seconds to take a tire up to 100 psi. I bought a Presta press-on adapter at the bike shop. It has a short chain so I fastened it to the hose so it doesn't get lost. The only thing I don't like is it has a hair trigger. I wish the spring was stiffer or the trigger was protected or relocated. I am always bumping it while attaching the hose or carrying the pump.

Phil_gretz

How does the press on adapter work?

madpogue 

Ryobi makes two 18V inflators. I have the larger of the two, and use it mostly on the truck tires. Dunno about the smaller one, but this one has an auto-shutoff feature, where you preset the pressure, and it stops when it reaches it. I've only used it occasionally on bike tires; it works fine. This model also has a separate low-pressure output, for inflating air beds, etc.

Chombi1 

It all comes down to how the pump itself is constructed. There's a lot of no-name-brand pumps out there with really chintzy construction that includes a lot of materials that fall apart from high heat (say plastics). The more metal you have in it, the more reliable the pump will be to pump up hi pressures and volumes. Internal tolerances also make a big difference.
Someone gave me one of those hand held air pumps pumps a couple of years ago for Xmas. It touted a max pressure rating of 120psi.
Inflated one of my tubular tires to just under 100psi with it and was first happy with its performance. But this changed after finding out on the next tire that it cannot even get it to above 65psi. Seems like something inside just overheated and gave up the ghost. Opened up the pump and sure enough, it had a lot of plastic parts and lots of loose tolerances that kept it from sealing well again. It just got worse and worse after that and now it struggles to even get a car tire up to 36psi and it takes forever to do so.

madpogue 

To that ^^^^^^^ concern, I've used the Ryobi to pump 235/85R16 and 265/75R16 truck tires, the kind used on 3/4-ton and 1-ton pickup trucks, from quite low up to 50-75psi, without skipping a beat. This is the kind of duty that has overheated and/or destroyed at least a couple cheap 12-volt Harbor Freight inflators. YMMV with the smaller Ryobi; I have no experience with it.

Pompiere

One side is a Schreader valve that locks into the air hose of the pump. The other side has a rubber gasket that you press onto the presta valve. When you are done, you pull it straight off.

I have the smaller hand-held Ryobi pump. You hold it like a drill and squeeze the trigger. It takes a long time to raise even a couple psi in a car tire. It works much better for bike tires and sports balls.

jadocs

Seriously? I’ve had trouble finding gas station pumps that have enough power to inflate the rear tires of my truck.

madpogue 

Well it's not fast. But that's the beauty of the auto shutoff. I install a 4AH battery, set it to 70 psi, kick it on and go in the house to do something else. It can take 25% or more of a 4AH battery's charge to do both rear tires.

Russ Roth

Got a model number and how quiet is it? I'm thinking of something similar.

madpogue 

Wow, now they've got six different models, including one with a tank. I have a P731. It's not quiet. I'd say it's quieter than the cheap POS ones at Harbor Freight, but not by much.

Mitkraft

I have one since I have a whole slew of Ryobi 18v One+ tools. I love them and they area always coming in handy. The Ryobi inflator is my primary means for airing up bike tires at home. I'll even toss it in the car when I'm driving out to meet for a group ride. I have the one with the auto shutoff which is a very handy feature.

robertj298 

I saw them on Amazon for $31 and thought thats pretty cheap until
I realized it didn't come with battery or charger.

noglider 

RJ The Bike Guy just had a video on it. He likes it.

madpogue 

Still not a bad price for what it can do. But like any system-based tool, it's really only economical as part of a collection. And like Mitkraft , I've got a slew of 'em, everything from a radio to a chainsaw, with all the usual power tools in between. The usual circular saw / drill / recip saw kit is the "gateway drug". There's even a third-party kickstarter-generated product called USBeast; they make one for each of the major power tool batteries, you shove it on top of the battery and you get two USB charge ports.

bdspeedy

I guess I shouldn't count on getting my Conti's up to 115 psi with it.

DrIsotope

The Ryobi Cordless Inflator, this one:


will easily go to 140psi. It's a great option if you already own a Ryobi tool.

madpogue 

^^^^^^ Yup, that one's lower volume, higher pressure. Would be in over its head doing truck tires, but definitely more apropos for road bike tires. There's a new version out, with a digital gauge, so the old analog version can probably be had cheap.

Mitkraft

No need to go homebrew/kickstarter. Ryobi already makes such a device:

https://www.ryobitools.com/products/...power-inverter

madpogue 

Fixed it for ya. The kickstarter product preceded this by several years; no surprise the big guys are following suit. Also, the USBeast, being USB only, is much smaller and less than half the price. All depends on your needs.