YESOO Extended Battery (4300mAh), Cover, TPU Case For Samsung Galaxy S3 III GT-I9300 + Exclusive Black And Green Color Key Chain Kit (Blue Cover + Pink TPU)

Giving a 4 because I've had it less than a week. But so far so good!

Exactly what I needed. I like my phone and it works well. I'm not into upgrading for the sake of it. While this phone works, I'll keep it. But I was getting frustrated with the short battery life. I tried portable chargers, but it was a pain to charge two things, carry two things, talk or use the phone while it was tethered to the charger... I was almost ready to upgrade the phone after all. But I decided to tried one more thing. I did a lot of research in amazon, looking at reviews and options. I decided to tried this extended battery. I liked the fact that it included the battery, the bigger back cover (in the same color as my pebble blue phone) and the case. For a good price, I got everything I needed.The battery is a hit!! It lasts a full day of heavy use (heavy but no media: only lots of calls, messages, email reading and writing, opening attachments, writing notes, opening docs from the cloud... work stuff). It still has a good percentage left at the end of the day. I used to be out of battery by 1pm. Now I can work comfortably until 8 without looking at the battery level, dealing with a portable charge or looking like crazy for a seat near a power outlet!It charges fast and lasts long. What more could you ask for?OK. There is one little thing. It is bulkier and heavier. I carry my phone in my purse, so that doesn't bother me at all. I guess it would be different for a person that carries it in a pocket. The difference is also noticeable while holding the phone, but I actually like the heavier feel. Before, it was almost too flimsy. But that is my preference. If lighter and thinner is important to you, this is not a good option for you. I don't know what would be, though.I've noticed some reviews talk about it not lasting for very long.I received mine on February 27th, 2016 and have been using it since then (2 months, now). It's still working great, retaining the same battery charge. And I don't always drain it before I recharge it. I'll update if I have problems in the future.

Does not work very well. Last only about 5 to 6 hrs. Have to continuously charge the phone. Very disappointed.

So after having this Battery and case for quite a while now and getting a second one for a second phone I really have to upgrade my review. The case is far more protective then I had thought it would be ( I drop it a lot) and Battery just is amazing, it goes all day while playing YouTube in the background and for $15? I just have to give 5 stars. Also I can get the case off without ripping my fingernails off my hands. .yaaaayyy

I bought this battery for my daughter and now she doesn't have to turn off her phone throughout the day to get more batter life.

Perfect last almost 2 days