Ryan sent his mobile phone to Samsung to have a swollen battery replaced. They had the phone for a month. Ryan is a super Samsung customer and the company wants to keep people like him happy. But more than that, if a bulging battery gets compromised, it could catch fire and explode. So there's a definite safety issue, and Samsung learned that the hard way with the Note 7.
Ryan has been having trouble with his Samsung Galaxy phone. He keeps sending it in because of an expanding lithium ion battery and they keep returning it unfixed. Leo says that Samsung knows painfully well the dangers of expanding batteries. Since Ryan wasn't the original owner, Samsung exploited that loop hole because that indicated there was no warranty to extend. But he told Samsung he spoke to Leo and they offered a replacement, which is a good thing.