Hello, Roboteers!
It seems that for some devices, you practically need a hammer to change the battery. It's astonishing that some companies advise this approach because customers aren't always aware of where the battery is located. This can be a very dangerous situation. Imagine you have a LiPo battery and you accidentally hit it with a hammer.
I've made a video about this issue, and part 2 will follow to demonstrate the correct way to change the battery. You can watch it here: YouTube Video.
