In my experience, changing a MBP battery in and of itself would not cause the CPU to throttle back. I do not believe the battery is the cause of the computer’s problem.

I have the Keurig 2.0 Machine. I've tried some of the solutions mentioned above. From cleaning to rubber gaskets/ring replacements and the unit continues to randomly put grounds where they ought not be. I am using Peets (French Roast) Coffee Keurig Pods. The upper lid is slightly domed. I insert the pod into it's chamber. Then gently press the upper lid to flatten it out. Having punctured the lower portion of the pod, this releases the internal pressure. See if your unit behaves as I describe here: At point of brew, I press the flashing start button. Normally I walk away to do other things while the coffee brews. Somewhere in this process, I get grounds in the coffee cup and randomly grounds spewing out the sides of the machine's head. I have noticed a slight movement in the "head" when the brewing process is active. Just a gentle up and down movement. It took a while for me to actually notice it. Now, I press the flashing start button, and gently apply pressure to the silver rim, to restrict the "heads"...

The guide was 99% spot on. I felt uncomfortable lifting the upper edges of the keyboard by the keys. It felt like more upward pressure was needed, and in so doing, I was fearful of popping off the two keys. My work around was to use the flat edge of a black stick to gently pry up one end of the upper keyboard. In doing so, the rest of the keyboard came loose. Reverse order (following the guide in reverse) was again most helpful.

Thank you for a very fine guide.

Gary