First of all, the battery is well made and heavy (7,800mah). The extended cover is just okay, doesn't offer the water resistance that the factory cover offers and it feels a little cheap (brittle) like it will break if dropped. The out protective cover seems okay but doesn't feel like it offers much cushion if dropped. The battery arrived at 58% and it only took about 1 1/4 hrs to top off. If definitely makes the phone feel more substantial. Will update after a couple weeks. Bought this on sale for $40 with the much needed accessories, large battery and a two year warranty. UPDATE: My normal battery would only last about 12 hours (around 20% remaining) of my normal use before I had to charge it, this battery has last over 24 hours and is currently at 70%. So it definitely last longer and looks like it will be able to go for at least another day before charging.