

Unconventional but the cheap pack I usually see recommended is a talentcell, that arent sold where I live and if I were to import them they'd be the same price as d tap or np batteries
given that I can't find a consumer phone power bank with a barrel connector output, I found these mini uninterruptible power supply for routers already being sold domestically, that can output up to 12v 1.5a or 9v 2a
is there something I'm missing or would these be totally fine to use?