So I got a replacement battery last November for the 15" MBP, and it started doing this within the past month. Has anyone had any luck with them replacing it? I've emailed them, and the warranty expired on November 15th so it might be a long shot. But that date was the day they shipped it and I'm pretty sure it didn't get to here in Canada a week later. But still it is one week past warranty. Either way just wanted to share, not saying all of them happens to be like this but some do.