Driving a car down a busy highway is way more dangerous than assembling one of these packs and storing it in your garage.

Sure, life is all about risk - no doubt about that. But I guess I'm not tooling down the highway in a DIY contraption I built in my spare time with little regard for safety from plans I found on an Internet forum and parts bought from Ali Express.

Not to say that _you_ shouldn't do this ... just be careful out there!