There have been plenty of smartphones with replaceable batteries. It's just in the last couple of years that everyone has given up on them. I'm still using a

There have been plenty of smartphones with replaceable batteries. It's just in the last couple of years that everyone has given up on them. I'm still using a Galaxy Note 4 with a replaceable battery. I haven't replaced it yet, but just a few weeks ago I had to pull the battery to get the phone out of a reboot loop. (That was the first time I had seen that with this phone.) If I hadn't been able to remove the battery, I would have have had to wait for the phone to drain it completely and shut off.