Interesting. So does it come with an attachment to let you plug it in to your car? My daughter is heading to those teenage years...Really trying to find a way to lighten the load and make her life easier.
I looked into the trek years ago when ds was a baby and was told by someone at Pari that the Trek didn't have enough psi for tobi. And I have heard from some that treatments seem to take longer with the trek. When we had a pari proneb and it wore out, tobi took 45 minutes...
I have used a pari vios and proneb ultra in the car with a cigarette lighter adapter and our Jeep and VW Jetta both have regular plug ins. You can also have your vehicle hardwired with a power inverter to run a vest. We've hooked one to the batter of our car (not hardwired) and had ds vest in the parking lot of a campground when he went camping with daycare. Short notice, so we haven't had it professionally/permantly installed. Needs to be hardwired though, if you try plugging in a vest with a cigarette lighter or plugins that come with new cars, you're going to blow a fuse. Couple friends have tried this on trips to the City for CF appointments. Noexcuses blog has some hints, info on vesting/nebbing on the fly. Think she used an E-Flow, which was acceptable for tobi and pulmozyme.
I have the Pari trek, and for the price it's great. Treatments don't really take longer in my experience (but my at-home compressor is getting kind of old). It overheats fast, so sometimes it can be hard to do a full set of treatments. It's usually good for 20 or so minutes and then it will need a break. Haven't used the battery, but it works great in the car. I was also able to take the trek to Europe without needing a converter, just a normal plug adapter was enough, so that was nice. It definitely wouldn't replace my usual compressor, but it's great for trips or doing treatments in the car.
I have a Trek S, I didn't even realize it had the battery option. Maybe it was something extra I didn't get. It works great for travel. I use it when I visit my mom's house for the afternoon or go out of town and use it in a hotel. It takes a little longer than my Vios (15 minute albuterol vs. 10), but it gets the job done.
I used the trek until I got the eflow system. Total life changer: with a fresh handset, the eflow makes albuterol and hypersal take a fraction of the time. I can't imagine using any other compressor now - and the eflow can operate on 4 AA batteries, super light and portable.
Technically it isn't approved for use with anything but cayston - but it works fine for me.