Sorry, I'm not trawling through the thread to see what's been recommended and then research on removable battery or otherwise. That's your job :thumbsup:
Gsmarena is the best and easiest site to use to check out the specs on phones. There's a clear list of specs on each phone, and battery...
You sound like users who aren't fussed by having the latest model and also likely to keep what you've got for a decent amount of time.
My best advice then is to look for models, in whatever budget you've decided on, with removable battery and expandable storage.
The absence of these two...