I also bought one of these Zero Lemon stupid big batteries for my last phone. I also love the oversized battery. Going to go this route every time it's available for me.
My current phone, a Galaxy Note Edge is a year old. I am struggling with getting it to survive a day at this point. So I just ordered this huge battery for it.
When I got my phone, I made a custom case for it. http://mike.creuzer.com/2015/08/i-few-months-back-i-bought-a-galaxy-note-edge-on-ebay.html
I will do this again. I had bought 2 of the wireless charger & NFC backs, so I have a 2nd one still I will cut up and meld with the oversized back coming with the new battery. The back will 'fix' the fact that this battery doesn't support NFC. I LOVE NFC. I NEED NFC.
I need to figure out how to pull the contact pins from the back around the oversized battery and to the phone. Any suggestions anybody?
I will also make a new belt case for the phone as it will no longer fit into the one I already made. http://mike.creuzer.com/2015/08/i-made-a-custom-leather-belt-case-for-my-custom-wireless-charging-flip-cased-galaxy.html
So, I know what I will be doing this month for a personal project. New phone cases.