New MacBook Pro, FileVault Locked in Perpetual Encryption, Kills Battery

Question

I have a brand new (well, it's about 2 weeks old now) MacBook Pro (2.8 i7, 1 TB, 16 GB, Iris Pro 1536 MB). Love it.
When I initially set up this device after removing it from its box, I opted to enable FileVault encryption.
Since then, however, FileVault has been unable to complete the operation. It seems to be locked in a routine of perpetual encryption, despite the fact it reports it's doing nothing at all.
Here's what I see in the FileVault panel of System Preferences, for example:
Note the progress bar. It reads "Connect power adapter to resume encryption." This message remains regardless of whether or not the power adapter is connected.
If I click the "Turn Off FileVault…" button, I get:
So I'm in a bit of a catch 22: I can't turn it off until it's done, but it'll never be done because it's waiting for the power adapter to be plugged in, but it never recognizes when the power adapter is plugged in.
This wouldn't be so bad except for one problem: it's doing something in the background that's absolutely killing my battery. Whenever I unplug my power adapter, "Converting to FileVault" is always displayed under the "Apps Using Significant Energy" section of the battery menu.
Presumably as a result of this, I never get more than about 4 hours of battery life with this device, even with the screen fully dimmed and when just doing basic web browsing. Interestingly, under the "Energy" pane of Activity Monitor, there is no line item for any FileVault related activity.
One final note. I've read that Apple puts SSDs in MacBooks from different manufacturers. The drive in my device is identified as, "APPLE SSD SM1024F Media." The "SM" from what I understand denotes that I have a Samsung SSD in my MacBook. I'm not sure if there are issues related to Samsung drives, but it would be a variable in this situation.
I've contacted AppleCare about this and they are stumped, though they acknowledge it's a recognized problem that is being investigated. I'm on a list of people to be notified of a fix, but I have the feeling sorting this out is a low priority at Apple.
So I figured I'd reach our here in the community with a few questions:
Anyone else had this problem and have a fix?
Is this hardware related, or just software?
Do you think a basic nuke and pave of the device will make this problem go away?
Anyone have any other ideas?
Thanks for reading. I look forward to hearing back on any thoughts anyone might have.

Answer 1

I finally got sick of the battery being chewed up in less than 3 hours, even with the lid closed, and no user-facing apps running. Yesterday I backed up all my files, erased the hard drive and reinstalled Yosemite.
During set up I opted to try FileVault again. Fortunately, it was successful this time, though it did take about an hour to complete the encryption process. I left the machine alone during that time and just let it perform that one function.
So if you have the problem I describe here, Apple doesn't seem interested in resolving the matter and you're only option is probably a full nuke and pave of your hard drive. It's a lot of work, but it'll probably save your battery in the long run.