Funny story. LG made something with a similar concept about 10 years ago and it never really took off. The LG G5 was a modular smart phone that was supposed to have a bunch of cool modules, but they never came to fruition.

I had one, but mostly because I loved having a swappable battery. Never had to charge my phone, I would just have a spare battery charging on my desk and I would swap it out before I left the house.

Hell yeah! I did not know this was an option. Thanks for the tip!