Well the battery would become the UPS of the device, it would instead run off wall power normally. I already have a small phone farm like that for testing stuf

Well the battery would become the UPS of the device, it would instead run off wall power normally. I already have a small phone farm like that for testing stuff, just not actual hosting. Never tried to build a whole linux hosting environment on a phone though, not enough motivation because they haven't been powerful enough yet.