Step by step instructions to replace the battery?

I've never had to replace the battery, but I followed the takedown instructions on this board up to the step to disconnect the battery (I only needed to disconnect the battery). It's pretty easy. Once battery is disconnected, you only need to disconnect a couple ribbon connectors and undo 4 screws to take out the battery tray. BTW, what I have is Nexus 7 2nd Gen (2013). But replacing the battery should be fairly easy.