The battery cover has some serious heft, no doubt for structural aid and durability.

Tough as it is, the battery cover is loosely attached to the phone. If you set your phone down with a bit too much force, you're guaranteed to lose the battery cover when you pick it back up.

Update: We got one of the actual shipping units post-teardown, and confirmed that the floppy battery cover attaches to the rest of the phone nice 'n' securely.

On the inside of the battery cover, we find an engraving commemorating the first supporters of Fairphone's grand vision: "This phone and you and 9635 people made fairphone possible."