Back in the ‘sweet spot’ of cellphone use, the late ‘90’s, you could get several days of use out of a battery. Some only needed a weekly charge. I also don’t need or want a flip phone to do everything that a smartphone does.
I’m a big proponent of making phones bigger with bigger batteries. I’ve got huge hands and most phones feel dainty and fragile. Give me a house brick with a week long battery and I’d be perfectly happy. Making phones slimmer is just silly.
I’ll look into those. That Sharp looks ancient though? I’m seeing videos on it from 6 years ago, assuming it’s the correct one.