There are power users out there who will snap this up. I'm not one, mind you, as my phone habits and settings have the N4 lasting me 2-3 days between charge... But I'm considering this item.
4500 (case) + 2100 (native) = a whopping 6600 (total) mAH. Killer for a long road trip with Navigation running and other heavy uses, camping trips away from electric, etc...
It smells like freedom from worry about battery capacity.
Forgive my ignorance but does this in fact give 6600 MaH in total?
It's a battery case. The N4 is sealed. No extended battery with a larger battery door is possible...
The comparison graph is throwing people off. Most of Mugen's phone product is replacement batteries. They mixed up the graph format. It isn't 2100 vs 4500. It is 2100 + 4500.