Battery replaced. MB spooled up when I plugged the unit in. Now waiting for it to charge. This process was actually pretty easy with the help of this tutorial. A lot easier than an iPad repair with all the glue. No way could I have done it without the help. So far: every iFixit! repair I have done has been a success. Thanks!

I used two small putty knives manufactured by a company called Albion Engineering. They make caulk spatulas in multiple sizes. Took me less than 2 minutes to get the back cover off, with no damage to the sides or clips. And - it was my first time! Highly recommend these, especially if you are in the business.