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Samsung Galaxy S3 Extended Battery Delivers 4 Days of Battery Life



A $30 Samsung Galaxy S3 extended battery is capable of delivering four days of battery life and NFC to the Samsung Galaxy S3. The extended Samsung Galaxy S3 battery may even last five days according to one review.

This isn’t a battery life claim from a marathoner dialing back Galaxy S3 settings, but a user who claims this battery life says he was also using the Galaxy S3 for gaming and with extensive screen time.

The ZeroLemon Samsung Galaxy S3 extended battery offers 7,000 mAh of battery power, which is reportedly the worlds larges Samsung Galaxy S3 battery.

This Samsung Galaxy S3 extended battery offers 7,000 mAh of power.

This Samsung Galaxy S3 extended battery offers 7,000 mAh of power.

This Samsung Galaxy S3 battery is massive, fitting into the back of the Samsung Galaxy S3 and spilling over the back to offer up a much larger phone. That said, the Galaxy S3 extended battery includes a TPU plastic case that fits over the back of the phone and wraps around to the front for a more ergonomic feel.

Read: How to Get Better Samsung Galaxy S3 Battery Life


The ZeroLemon Samsung Galaxy S3 case comes in black, white and blue and even supports NFC so users can keep using Google Wallet and S Beam.

The Smoking Android shares the video review of this case, where they explain more about the use and show off just how big the actual battery is.

Of course this battery isn’t without compromises. Adding the ZeroLemon Samsung Galaxy S3 battery with a 7,000 mAh rating will bulk up the Galaxy S3 considerably.

The overall size of the Samsung Galaxy S3 extended battery looks similar to the Hyperion Samsung Galaxy SIII 4200mAh extended battery we reviewed last year. The Hyperion battery lasted about two days, which is great, but sound short compared to the promise of four or five days of use.

The ZeroLemon Samsung Galaxy S3 extended battery offers long battery life but adds bulk.

The ZeroLemon Samsung Galaxy S3 extended battery offers long battery life but adds bulk.

The official Samsung Galaxy S3 extended battery arrived in late December with a 3,000 mAh rating. This model will help some users get through a full day, with a Galaxy Note 2 sized power rating, but it can’t match up to the power packed into this extended Galaxy S3 battery.

The ZeroLemon Samsung Galaxy S3 extended battery is available from Amazon for $33 and also comes in white and blue.



  1. Bob

    04/15/2013 at 7:00 am

    hey is this thing for real? it doesn’t seem to exist on amazon (and your link is broken).

    • di sid

      05/21/2013 at 6:45 pm

      Yes it’s for real. I’m getting 3 days between charges with heavy use, unbelievable. Keep looking on Amazon, they sell out but restock frequently. This battery is a beast. It’s awesome.

  2. marcos

    04/19/2013 at 1:00 pm

    I went to Zero Lemon and they also have a broken link. Seems they are out for now. I am keeping watch on Amazon to get one. Currently using the Gorilla Gadgets 4500mah with a bright Blue Hyperion case. Wishing there were more extended battery cases out there. For now this is great.

  3. Tristan TheInfamous McCormick

    04/20/2013 at 3:06 pm

    The battery do last for 3 and half days with moderate use, heavy use 2days just need better phone cases for it anybody that know where i could get a 7000mah battery case for it let me know

  4. birjushukla

    05/12/2013 at 5:02 am

    This is great ,i got the ZeroLemon Samsung Galaxy S III 7000mAh Extended Battery + Free Black Extended TPU Full Edge Protection Case only $33 at

  5. Martin Seamus McFly

    05/15/2013 at 9:21 am

    This battery sounds great! However the video review does not mention about the possible signal lost that happens when using this battery. Apparently where the attenna is on the phone this battery apparently blocks signal so be warned as some other owners of this battery has noticed this issue if you are in a area with already bad reception, this battery may kill your signal completely.

    • di sid

      05/21/2013 at 6:48 pm

      I haven’t found that to be the case, and reception in my home town is pretty bad to begin with. No interference from what I can tell.

  6. PacoBell

    05/19/2013 at 2:59 am

    So tempted to get one of these, but I’m almost certain it’d be incompatible with my inductive charging adapter, being that its thicker and all. Looks like it’d cover the charging pins, too. Oh well, perhaps I’ll get one anyway for those days I know I’ll definitely be away for a while (or Ingressing =P).

  7. angela

    07/13/2013 at 6:45 pm

    Looks like it recesses the camera lense. Does the thickness of the battery & case diminish the great quality of photos this phone takes?

  8. tyler

    04/12/2014 at 6:21 pm

    I found that with this battery my reception has dropped a lot. Half the bars as with the stock battery or they Hyperion 4200. Heavy use I get at best 16 to 18 hours and up to 24 hours with minimal use. I have tried two with the same results. Hyperion 4200 gave me better heavy use hours but worse light use hours. Coming from a cold climate we know in northern canada quality not quantity is important for batterys. Tried over a dozen eztended battery for my s3. Hyperion 4200 and samsung 3000 have lasted the longest consistantly but are more pricey.

  9. Mark

    05/14/2014 at 5:43 pm

    I have purchased the yesoo 4300 from Amazon that includes battery, back cover and TPU case for my galaxy s3 and followed the correct charging instruction and my phone now last 3 days. I do a lot internet searches and watch anywhere from 1 to 2 2hr movies a day on my phone, along with talking, texting, pictures, and app downloads. For $15 bucks and 3 day shipping this is the best investment for this phone since I’ve had it. While no, it does not support NFC, I dont mind cause I never used it before hand. Yesoo has fast shipping, great customer support and awesome price. A lot of people dont follow the charging instructions correctly then want to complain, but if you follow whats given then you should receive 3 to 4 days of battery life.

  10. harbans

    08/25/2015 at 7:32 am

    battery is good very good but supporting case is not good enough to keep holding batter in place in same shape. the 2 or 3 batteries strapped together doesnt remain intact and get loosed and charging goes messy.

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