The advantage of a swappable battery isn't having multiple charges worth of power on your person, it's not having to ditch the phone/potentially deal with warra

The advantage of a swappable battery isn't having multiple charges worth of power on your person, it's not having to ditch the phone/potentially deal with warranty problems when your battery starts to go. It isn't about short term convenience, but removing a long-term point of failure. For people who aren't interested in shelling out for the latest device when they find their current one suits their needs (modulo hardware failures) this is (or, I guess, apparently only used to be) a selling point.