The battery expanded and pushed up the touch pad like it was a bulging disc in my laptop. It not only looked broken but it also looked painful. My 7-year-old granddaughter said, "Oh my, I'm not sure it will ever work again."
The old battery had expanded like a pregnant woman's foot in her shoe. The battery was so thoroughly jammed into the battery space that I had to use a shoe horn to pry it out. First the big side of the shoe horn, then the small side, then finally it gave way with a loud snap. That battery never felt so much relief as when I removed it from the laptop. Now it's relaxing on the chair with it's plug, giving me a thumbs up.
The new battery slid in like Cinderella's foot in her glass slipper—two screws, plug it in, it was a breeze. With the right tools you can do anything!
It's important to me to include my granddaughter in all my technical repairs. That way when she grows up, she will not be intimidated to try new things. She's 7 years old and has no fear in taking my laptop apart—which worries me a little. iFixit teaches us to do things we ordinarily would not try, so let's pass on the benefit by teaching others so they too will try.