Battery Replacement and Dual SSD Install
The battery was shot and wouldn't hold a charge at all. Also had a spare SSD so I decided to install that too.
Both the battery replacement and dual hard drive installation were very easy to do. Having the guides up on my phone and desktop allowed me to follow along step by step.
Nothing special, follow the guide and use the correct tools and should be no problem for anyone.
Unibody Laptop Dual Drive
MacBook Pro 15" Unibody (Early 2011 through Mid 2012) Replacement Battery