EZOPower High Capacity Extended Replacement Battery (4200mAh) + Blue Door for Samsung Galaxy S3 SIII i9300 (AT&T i747, T-Mobile, Sprint, Verizon) Android Phone EZOPower High Capacity Extended Replacement Battery (4200mAh) + Blue Door for Samsung Galaxy S3 SIII i9300 (AT&T i747, T-Mobile, Sprint, Verizon) Android Phone

Pros: The battery is double the Galaxy S3's stock battery. It lasts for days with normal use without needing a recharge. Very durable battery cover. The replacement battery cover has a rubbery texture to it, actually making the phone easier to hold.

Cons: Is bulky and replaces what ever battery cover you have due to the battery's shear size. This particular company only makes their replacement battery covers in blue and white. I personally didn't care but some people might be offended.

Other Thoughts: The bulky battery and cover don't effect the camera which is a plus.

Pros: Long battery life
Cheap
Phone actually feels more solid than stock.

Cons: This is the battery/back the phone should have come with.

Pros: Good battery, it lasts 2 days under active use.

Cons: the color was wrong. they offered to refund it and pay for postage but I won't as it is not that big of an issue.

Pros: Drastically extended my phone's battery life.
extended case makes the phone easier to grip

Cons: sometimes lasts 2 days, sometimes 1 day with similar usage, could be my phone's fault though. for the price I'm not complaining because its still far longer than the stock battery
extended case makes the phone take more room in my pocket and can't find cases for it. and the color doesn't exactly match the phone, it is close though.

Other Thoughts: there are some pros and cons, but for the price I think this is a great deal. now, amongst family and friends after a long day my phone is the only one that isn't dying.

Pros: Much longer battery life
my phone sometimes caused a lot of interference when plugged into the external speaker, this battery blocks NFC and the interference stopped when I installed it... I think NFC was causing the interference, I don't use NFC so this is a win for me, though I suppose I could have turned off NFC.
The bigger case makes the phone easier to hold.
I liked the original thin case but it was a little clumsier.
On long work days when I can't get to a charger it is nice to know my phone still has several hours left. The stock battery would need a charger by 6pm or it would die.

Cons: It's a non-stock case, so covers will be hard to find. It takes a lot more room in my pocket. The color isn't an exact match. Every now and then the battery depletes 4x faster than normal, though I think this is something my phone is doing and not the battery. It takes a longer time to charge, that's not a big deal but kind of a con.

Other Thoughts: Overall I'm very happy with this phone. My friend has the same phone but with a stock battery. He makes fun of my phone being big and clunky, but I get the last laugh when it's 7pm and his phone dies while mine still has 11 hours of juice left.

Pros: Lasts longer than OEM battery

Cons: Kinda big

Other Thoughts: I bought the white version for my phone a couple of months ago. It lasts a little more than 2 days in my phone. I don't do much with GPS or online.
I bought this one for my wife's phone. I saw my phone had 4 bars and hers has only 2. The only difference is the battery so I decided to get one for her and see if that helps her phone. We live in a small town, the reception here is bad, at best..

Pros: Battery works great for the Galaxy S3. I did the full charge Tuesday afternoon, and ran the GPS, multiple games, phone calls, web browsing, texting, emails, etc... 9:00 the next morning, the battery still has 62 percent remaining. It would take a lot to run this battery down in a 24 hour period.

Cons: None really. If I wanted to be picky, the battery is just slightly tight in the back, but it fits and works so who cares really.

Other Thoughts: It does make the phone more bulky, but I like that. It fits my hand so much better than before. I don't feel like I'm going to drop it all the time. I bought a leather pouch with plenty of room to spare so it fits just right.

Pros: It does what it says on the package. Double thick battery, double capacity, back cover to match. I can do whatever I want with the GS3 now and no longer have to keep an eye on the battery. Music videos, news reading, web browsing, weather syncing, texting, voice calls, Wi-Fi and Bluetooth turned on all day, live wallpaper, no problem. End of the day, still 70%...

Cons: The included back cover doesn't include a flip screen cover for the front. Add that and it would be pretty darned close to perfect. Of course this makes your phone both thicker and heavier. Not really a bad thing for me, but still...

Other Thoughts: The listing said this wouldn't fit in chargers. With this addition, the GS3 *does* still fit into the standard GS3 Multimedia Station for charging and clock use. Fits even better, because it's not wobbly anymore...With the added thickness and heft the phone is now easier to hang onto. Doesn't feel "cheap" anymore...Have to wait and see if it holds up over the long term.