So, my battery decided to up and die on me. My Mac still functioned fine, it just had to be charged 24/7 to keep it... "Stable."
When I FINALLY got the battery that I had ordered, I ran into issues after issues. Such is that my screwdriver just happened to be too big to get pass the "gate" to the core. When I finally found a decent screwdriver to get pass that first barrier, I ran into my second one. The screws holding my battery together was not a regular one. I spent days going from store to store trying to find this so called, "Tri-Wing Screwdriver." Never found one, so I turned to iFixIt. After waiting another couple of days, I finally got the screwdriver and unscrewed that busted battery and placed in my new one. Easy, and worked like a charm just as the description suggested!
Repair is easy, but gettin' to the repairing area may be difficult. Prepare for a long process.