Bluetti Elite 400 pros and cons Pros The wheels make moving this a breeze on flat ground An all-purpose unit that's great for home backup, camping, RV use, and more. Competitively priced. Cons Can be heavy if you need to lift or carry it Charging can take longer, depending on the output mode. $1,298.98 at Amazon Follow ZDNET:  Add us as a preferred source  on Google. It took humans some 300,000 years to figure out that rolling something was easier than carrying it. Just as it's hard to believe that the iPhone hasn't been around for 20 years yet, it's just as hard to believe that we've only been using wheels for some 6,000 years.  And it's odd how few power station manufacturers put wheels on their units (and when they do, they feel like a compromise). They still expect you to lug around 80-pound lumps like a prehistoric cave dweller.…