Friend of mine had exactly the same problem, after just a year and a half. The battery did the swelling thing. There was even a recall for the battery but he was too late and they didn't sell them any more(!!) He got some 3rd-party battery from eBay or whatnot and the laptop refused to work with it because it's "non-genuine". You could make a safety argument with batteries, but 1) it's my safety and my choice, and 2) I'd be somewhat okay with if you actually gave me an option to buy a genuine battery.
It's not even my laptop and I'm still angry about it. I tried to find a solution for him, but all I found were other people in the same situation.
Selling broken $1500 products, saying it's not your problem when people report their product is broken, and actively preventing the customer from fixing it? As far as I'm concerned it's a "business" in the same sense that Michael Corleone was running a "business".