Battery has been replaced, suspicious on a <2 year old car with only 12k miles.
Also missing the red plastic terminal cover.
Worst case scenario it was a ghetto wiring job for the amp that killed the OE battery (mine is doing fine after 4 years and 55k miles) and the problem is still lingering unfixed despite removal of the amp and whatever other changes there were, best case it died on the lot or by some sort of user error (left the lights on a few too many times), or the PO replaced it for something lighter (it does look a bit smaller) or for some silly reason.
Check out a regular 2015, maybe I'm wrong and they changed battery suppliers, but I doubt it, that Panasonic battery seems to be ubiquitous in every photo I see.
Edit: Looking at OP's photo the battery does not appear to be secured at all and the handle is broken, secure it asap please.
Everything else looks reasonable (aside from the use of armorall in the engine bay, fuckin' dealerships man) based on the pics, maybe it's nothingn, enjoy.
