Thanks for the comment @watersnake101. I was too young to remember when they first came out, but I have seen images of the ones that had a battery so large it was like carrying a brief case. When my parents first got one, it came with two detachable batteries - one on the phone, the other in the charger getting prepared.

Times have definitely changed!

I'm yet to reach the joys of having kids with phones - mine are still too young, but I'm sure it's a battle I'll have to face in the next decade or so.