The OP's P85 is not under an unconditional battery warranty. My Volvo still had limited warranty coverage, it's just that transmission failure and turbo failure were not covered at that point. But my point was that anger is not an indicator of whether something is covered or it's not. I was not trying to compare the two warranty situations, just the human reaction.
But yeah, it probably hurts a lot more to have expensive things crap at after only 80,000 miles rather than 239,000. Oh, wait, the OP's car didn't crap out at 239,000, it still works, albeit with reduced range!
I must have missed the part where the OP had a sudden drop of 50-80 miles of rated range!