I remember when we had replaceable batteries, many, with different shape, different spec, different charger. Then someone did invent a universal charger with mo

I remember when we had replaceable batteries, many, with different shape, different spec, different charger. Then someone did invent a universal charger with movable pin. If you want to replace battery on your iPhone, you can actually do it in local repair shops. Powerbank is actually a good product. I don't miss replaceable batteries.