I couldn’t really tell you why the Jackery Battery Backup Powerpro 500 is being billed as a CPAP accessory. Like okay, yes, it does that, but that seems like a really narrow market compared to all the other things reviewers mention using it for. Just a few examples: Running air mattress pumps, generating electricity for TVs on the go, getting juice to a small fridge, powering astronomy equipment. IKR? Totally more useful than the name lets on. At today’s all-time low price of $400 (it’s normally $600 or more), you might just want to grab one — there’s no telling what future adventures you could have where it’ll come in handy.