Which is why [Guy Dupont] swapped the internals of his iPod Classic with a Raspberry Pi Zero ... he also had to fit a 1000 mAh battery, its associated charging and boost modules, a vibration ...

Put simply, battery life will be atrocious if you put an SSD inside an iPod Classic. You'll get an hour or so of listening time, at best, and standby time will be bad as well. Most importantly ...