Most Android phones have big batteries these days, but that doesn't mean they always have enough juice for today's go-go smartphone user. Luckily, ZeroLemon has just started selling gigantic batteries for the Samsung Galaxy S4 and LG Optimus G Pro. Sometimes form has to take a backseat to function.


The Galaxy S4 batteries are 7500mAh, which is almost three-times the capacity of the included li-ion cell. The Optimus G Pro unit is a whopping 9300mAh. That too is nearly exactly three-times the capacity of the device's standard battery. It almost goes without saying, but ZeroLemon does include new back covers to seal in these gigantic li-ion cells.


While they're going to make your sleek, sexy phone look a bit like a brick, the ZeroLemon batteries do come with black and white back cover options for both devices. The Galaxy S4 edition will run you $39.99, and the G Pro versions clock in a little higher at $44.99. If you can put up with the added girth, you're going to get tablet-sized battery life in your smartphone.

[GS4 (black), GS4 (white), G Pro (black), G Pro (white)]

Ryan Whitwam
Ryan is a tech/science writer, skeptic, lover of all things electronic, and Android fan. In his spare time he reads golden-age sci-fi and sleeps, but rarely at the same time. His wife tolerates him as few would.

He's the author of a sci-fi novel called The Crooked City, which is available on Amazon and Google Play. http://goo.gl/WQIXBM

  • DuncanPerkins

    It's definitely worth it. I actually prefer the feel of my GS3 with the zerolemon battery on it. It feels better in the hand. Plus it lasts three fucking days, I mean, come on. The back that comes with it could have a swastika on it and it would still be worth it.

    • Martin Nutbeem

      I rate my S3 one too. Don't use it for everyday, but for weekends when I'm out and about it's great. Likewise I quite like the extra weight/rubber case for exactly those times - out and about and not having to worry that if I take too many snaps, check stuff, use maps and have me tunes on I'm going to run out of juice.

      It's actually a massive pain in the arse running the battery down before charging as they advise to prolong battery life. It just lasts...

      • Nic Hilgendorf

        For those that had the S3 how do you know that's it's full? I thought that I read that your battery stats are off on both ends (full and almost empty) when you use this. Just curious what to expect.

        • dark_funk

          The battery will eventually stop charging, but will continue charging for a while after the battery shows 100%. The battery remaining estimation still functions, but it's more vague with the ZL battery installed, to be sure. I just make sure that, once I'm down below 5% battery remaining, I charge the phone overnight (on a full-power charger - a USB cord connected to a computer won't cut it here) and give it a solid 8 hours. Then it's good to go for 3-4 days with my typical usage.

        • Tim H.

          You know its full when your led on phone goes green.

    • avataranjie

      a swastika used to mean peace, love, and vitality. It literally means to be good. It was positive symbol is almost all cultures until Hitler came along :D

      • Matthew Fry

        Unfortunately, it's been forever tainted. It doesn't matter what it used to mean other than to see how humanity can perverse good things.

        • in

          where you live maybe. In my culture it's a religious symbol, considered holy and used in pujas. Swastika ftw!

          • Sean Royce

            "Religious symbol" Are you part of a gang or writing this from inside prison?

          • troph

            Try any south-east Asian country... genius. There's a thing called Google. Use it.

          • Sean Royce

            I know how to use Google... genius. Obviously oblivious to the use of sarcasm. Google it.

          • iampun33t

            dude... I am from India and am a Hindu.. the swastika is a sacred and religious symbol in Hinduism and has been so since centuries. It was Hitler that made the swatika represent cruelty...!! Please research before commenting. Though I take no offence in your lack of knowledge/ ignorance of other parts of the world, others might get offended..!!

          • Sean Royce

            Lel still don't care..

          • fuck u

            abey chutiye fucking moron .. swastika as said was and still is a symbol of peace .. u dont change the meaning for ur sorry ass motherfucker ..

    • Mike Harris

      I have the white back and it somehow absorbed every color it's ever come in contact with, so it's got like a weird pink-orange color all over the edges and a grey-blue color all over the back. Other than the ugly colors, I also don't like the feel of the rubber back and don't like that there's no plastic back there.

      That being said, it could be made by Rush Limbaugh himself and I would still pay good money for this thing.

      • http://www.androidpolice.com/ Artem Russakovskii

        Think of it as psychedelic.

      • Matthew Fry

        Haha. I just noticed that mine no longer matches the color of the phone face. It has turned a bit off of white in the dirty direction. Not that I care. My phone drains 0.5% an hour on good days.

      • Income and Dividend Guru

        Rush Rules, Mike !!

    • shams

      @яσα∂ѕтєян∂1 му ¢σ-ωσякєя'ѕ нαℓƒ-ѕιѕтєя мαкєѕ $62/ня ση тнє ιηтєяηєт. ѕнє нαѕ вєєη ωιтнσυт α נσв ƒσя 8 мσηтнѕ вυт ℓαѕт мσηтн нєя ¢нє¢к ωαѕ $20614 נυѕт ωσякιηg ση тнє ιηтєяηєт ƒσя α ƒєω нσυяѕ. нєяє'ѕ тнє ѕιтє тσ яєα∂ мσяє­ ........... w­w­w.b­u­z­z­9­0.c­o­m

    • dogulas

      The only thing I really don't like about mine is how little grip there is. I have been trying to think of a way to make it more rubbery and grippy on the outside but short of some kind of grip spray or physically altering it, I can't come up with anything. Ideas anyone?

  • Nic Hilgendorf

    I just ordered the S4 version last week and should have it shortly. I'm excited to see how thick it really is and how long it really lasts. I only plan to use it in certain circumstances not as my daily driver case, but that might change as I use it more.

    • Scalia

      Hi, Nic. I just got mine for my S4. It surprisingly doesn't add that much thickness to the original size, but it is definitely heavier (not too heavy, though). I'm following ZeroLemon's recommendation to give it a first-time 12-hour charge, so I'll have to wait until the weekend to really fire it up.

      • Nic Hilgendorf

        Sounds good. thanks for the feedback

        • Scalia

          Nic, I got in from work early enough, so it's on the charger now. The battery was difficult to install, but I heard that once you get it in the first time, successive installs are easier. I was afraid I'd break my phone so I set it on the carpet, lined up the battery as closely as I could to the battery port, and pressed very firmly down. It went right in and the phone fired right up.

          Call quality was excellent receiving and sending. My signal was the same (some reviewers had complained about it). My NFC & S-Beam worked fine, and my music was loud and clear.

          I hope your experience goes well.

          • Nic Hilgendorf

            Thanks for the reply. I just got mine yesterday and had a 12 hr window so I popped it in. I had the same trouble that you did with getting the battery in the first time (it's pretty snug), but it gets easier. I like the tip about putting it face down on the carpet though.

            We'll see how long this first charge gets me, but haven't had any issues at all with phone functionality either.

            Even though it's huge I think I am really going to like it. "Is that your zero lemon S4 in your pocket or are you just happy to see me?"

          • Scalia

            Yeah, I don't mind the size or weight of mine at all. So far, after the first charge, I'm in at 7.5 hours and still at 92% battery life. The only thing I can really complain about is the auxiliary port. Although the case has an opening for it, I cannot get my standard jack fully inserted because the case interferes with it. To listen to music in my car, I have to take the case off. I guess I'll have to invest in a new chord, but that's a small trade-off for the excellent battery life.

          • Scalia

            Hey, Nic. Just checking to see how the battery is working out for you. Mine is super.

          • Nic Hilgendorf

            Yeah, I love mine. I turned out not using it as my daily driver, but pop it in on the weekend when I get the most use out of my phone. Took it on several trips too and can't be happier with its performance. Glad I went with the black case though by the reports from other users regarding the white one collecting dirt/marks.

        • Tim H.

          Oh and btw, the battery life seems to increase pretty drastically after your first initial 5 charges. I charged for a solid 12 the first time, and the 4 charges following I discharged to 2% and all the way back to 100%...make sure the first few charges you wait until the green led lights up on your phone, that way you know for sure its at max charge. Once again, you are gonna love never having to worty about your battery and you will be bragging to everyone lol

    • Tim H.

      It does amplify the sound on my note 2, it does last forever, it makes the phone feel higher quality/more substantial in your hand, and you will not ever want to use another battery. Period. Good purchase ;)

  • Mike Harris

    When I got one for my GS3, I told myself I was only going to use it for when I was away from a charger for extended periods of time because it made it so bulky. Then I started using it and realized that the UNBELIEVABLE battery life far outweighed the fact that it transformed it into a giant monster. This is a must-buy for anyone.

    • http://www.androidpolice.com/ Artem Russakovskii

      Which shows once again that many of us would rather than relatively thick phones (that wouldn't even be that thick at all) with ridiculous battery lives than razor thing ones that can't last a day.

      • Nic Hilgendorf

        Completely. Who's gonna be the first manufacturer to clue into this?

        • BetterWithRoot


          • douglasaharry

            But they only make them for Verizon phones. I am waiting for a GSM phone version (I know you can get the Razr Maxx in GSM but you have to import it)

        • dark_funk

          I feel like Samsung already clued into this, just by keeping the removable battery option that so many manufacturers have eliminated. I'd love to see Samsung make an OEM beast battery in the style of the ZeroLemon, though. Of course, they'd probably charge $120 for the damn thing.

      • Matthew Fry

        I wish that was the majority, but I see people comparing the thinness of their devices constantly. It's impressive, yes. The fact that my phone with the screen on can last longer than your phone with the screen off, much more impressive.

      • Kobi Nechmadi

        galaxy s4 battery life with original battery isn't so bad , it's even good in compare to other smartphones

  • Royal2000H

    Does anyone have a zerolemon battery for the Galaxy Nexus? http://www.amazon.com/exec/obidos/asin/B00AZZOH04/AP1X2BX40-20

    It seems ridiculously big (physically) and possibly heavy. I'm hoping someone can weigh in. I'm always running out of battery on my Verizon extended battery.

    • Jason Hay

      I'm using my vzw gnex right now with the zero lemon battery. It is thick and heavy, but I like the rubber texture and it lasts a really long time. After a 16 hour day of heavy use, almost 5 hours screen on time it was at 43%

  • 36yearold

    Should be standard option for all phones. Now release a qwerty with this kind of battery, and you will have first good android phone for work.

    • Andreas Martin Mørch

      Your comment made me miss my old Mini Pro..I hope some high-end qwerty device will be out soon..

      • Sean Royce

        Besides BlackBerry? You won't get basically any qwerty options.

  • Slav

    When is it out in Canada? I'd love to get one :)

  • Richard Markert

    I hate TPU cases, if these batteries came with a regular plastic back cover, I'd buy one five minutes ago.

    • Jason Bailey

      They are in the process of developing hard cases. Theres details of lots of mods been done over on XDA to get them to fit into otterbox cases as well.

  • smeddy

    I've been using these (as grey imports from China) for two years on my Galaxy Note (the 5,000maH ones) - and they rock. I love the feel of the phone, the kickstand, and the two/three day battery life. I've watched this "thinner is better" phase with astonishment.

  • Matthew Fry

    So... the reason why they are just about 3x the battery... it's three of the batteries taped together. This thing is ghetto and bad ass at the same time.

  • lensgrabber

    Zero Lemon for the Note 3 that's what I want. Anyway, got one for the S3 and it rocks.

  • http://rootandroid.net/ Anuroop Anilkumar

    Zero Lemon for Galaxy S4; sounds really good

  • Tim H.

    I have a 9300 zero lemon in my note 2, and its one of, if not the best thing I have ever purchased lol...the battery lasts 4 f'n ever.

  • Caseyp1122

    The only knock I have on zero lemon's extended life battery is it definitely negatively affects signal reception. before I installed it I had areas where I get 3 bars, after installation oin those same areas I get maybe 1 bar of service. It is definitely the battery. Trade off is worth it though.

  • lamps8

    And I got 1230mAh on my HD2...

  • http://www.Nave360.com Sebastian Gorgon

    Sticky... paid post then I'd assume, typical amongst websites covering mobile.

    • Sven Joy

      They mark them as Sponsored normally, can't see the reason for this to be a sticky tough.

  • Dan

    I just got my battery for my Galaxy S3 yesterday evening. I charged it last night. I began using it 13.5 hours ago. It's been constant usage, full screen brightness, live wallpaper, etc, all 13.5 hours. It's now at 60% batter left. I LOVE THIS!!

  • Maxime Henrion

    I think this is great, especially if you're a fan of hiking. I'm only concerned about my feet not fitting in my shoe anymore once the sole is in. Also, wouldn't you be slightly unbalanced if you only use one sole?

  • Steve Milliamps

    Ok, I will say that the battery probably lasts forever.. But holy crap is that bad boy ugly... I saw one of my buddies with that big hunk of battery and the back was only a case to hold it in and wasnt even a solid back plate... Huge battery nice an all, but I ended up going with the one from Incredicell, still lasts me 2 solid days.. http://www.accessoryswamp.com/galaxy-s4-battery.html

  • Love my Samsung Galaxy s4

    I just bought the zero lemon 7200mah battery for my new Samsung galaxy s4. I had found myself replacing my battery far too often. I realize this is a trade off due to the extra bulk it adds to the device but I'm willing to make that trade for a excellent extended battery. With zero lemon you get much more mah as compared to say mugan which is more than double the cost and mugan is bulkier than this battery. Its not for everyone I realize that because some aren't willing to sacrifice the thin sleek look of the device. I completely understand this but for those of us who are willing to have a bit more bulk for superior battery life this product is a wonderful deal. I'm looking forward to not having to change my battery all the time. And zero lemon has two colors I got the white one to match my device. Can't wait for it to arrive! This is the solutions ive been looking for!

  • Kenneth Alano

    I recieved my zero lemon. Recharged about 4hours because . It appears that "unplug the charger" even the package is saying 12hrs charge.

    My problem is it keeps on 60% after 30mins it it will turn 62% how to fix this? Pls help

  • Gizi

    Купил себе такой аккумулятор на сайте http://7000mah.ru/ и перестал ходить с зарядником! Рекомендую!