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Hands-on with Seidio’s 3800mAh Extended Battery for Galaxy Nexus [Contest Too] (Updated: Winner Picked)

No that is not a military vehicle on your screen, that is the Samsung Galaxy Nexus with a Seidio 3800mAh extended battery attached to it. It might look like a tank, but it will certainly power your phone through a full day thanks to more than double the juice of a standard G-Nex battery which weighs in at 1850mAh. I picked one of these up (the NFC version of course), to see how big it really was in person, but also to give one away since they pack a $75 price tag. Before we reward one of our amazing DL community members though, let us talk about it for a moment so that others can decide if their pocket can handle one. 

So how big is it? In the comparison shots below, you can see that the thickness matches up almost perfectly to a G-Nex extended (2100mAh) and standard battery stacked on top of each other. It’s thick, people. It adds a decent amount of weight, meaning you will notice a difference. It also has a purely black cover which of course does not match up to the coloring of the actual phone. So not only does this beast stick out a half an inch or so off the back of the device, but it stands out in looks as well.

What about a single life charge? I’m not going to lie, slapping this on the back of my phone would be the equivalent to someone scratching fingernails across a chalk board. I’m a minimal phone elitist, meaning I love my phones thin and sleek and without massive, non-matching humps on the back. Basically I’m saying that I have not fully tested this battery, however, at 3800mAh this thing includes more power than the 3300mAh battery tucked into the DROID RAZR MAXX which can last you anywhere from 2 to 3 days. This battery should easily hit numbers like that. The big thing here is that this battery is not slender like the RAZR MAXX’s. If you are interested, you have to ask yourself if the added weight, thickness, and black non-matching back are worth it to you. For some, the answer is a definitive, “Yes.”

Other notes? The new back plate has a soft, almost matte black finish and feels a lot like the new Ringke SLIM case that I reviewed last week. It doesn’t feel that bad in hand and is essentially slip resistant. This version of Seidio’s battery is also the NFC-capable one, so you won’t miss out on any Google Wallet opportunities with this attached.


Since I sit at a desk all day long blogging away with a chargers are arm’s reach, a beastly battery like this is not necessarily topping my list of must-have accessory. So we thought we would save one of you $75 and give it away. Sound like a plan?

To enter:

1.  Follow us on Twitter if you aren’t already.
2.  In the comments, tell us how badly you need this extended battery.
3.  Tomorrow at 9AM, we will choose a winner from the comments.

Good luck!

Update:  Our winner has been picked!  HuskerDroid10 was randomly chosen and will take home the NFC capable, 3800mAh Seidio battery for the Galaxy Nexus. He hopes that this tank will get him through sporting events, something his current battery cannot do.

  • Jlankford3336

    I have to charge my phone at least three times a day. It would be so nice to get through one shift at work with out charging! Thanks for the chance to win!

  • Well, with that battery I will make good use of Flash player if ya know what I mean 😀

  • I travel a lot and always use my phone for boarding but today on a layover from Texas to Reno my phone died leaving me without my boarding pass!

  • I would use this a lot because I can barely keep a full charge all day. Plus I will also use it to bring back Yo Mama Jokes! For example: Yo Mamas so fat, she got a bigger belly than my phone does.

  • jwrb18

    I work in am office and stream internet radio all day and have to charge my battery by 11am each morning so I need this so I can go without charging for longer.

  • Bill

     Being in the rural areas, I don’t always have a place to plug the phone in to charge it (out visiting with folks in their yard or field). So an extended battery would be the best!

  • Matt O’Leary

    It would be nice to go a few days between charges. And it would be useful at those all day conferences when I can’t recharge easily.

  • I’d love to have this thing so I can  have a contest with my co-worker which one of your phones will last the longest without a charge, my Galaxy Nexus or his RAZR MAXXX.  🙂
    It’d be awesome to not have to charge my phone halways through the workday or having to use a charger when using Waze.

    Oh also with this thing attached to phone, would look like my Nexus has a goiter 🙂

  • i need this battery something serious. i run heavy equipment for a local municipality here in Nashville, TN and they dont run on 12v systems, so i dont even have the luxury of a car-charger. usually a little after lunch, my battery is toast. i would love to have this and it would make a big difference for me,

  • Jason Brown

    it would be nice being able to use my phone all day without having to turn down the brightness on such a beautiful screen and not have to undervolt in order to get decent battery life.

  • James_C_L

    between being a dad, and having a 4 hour round trip commute for work, im rarely near a charger.
    please make my life easier!

  • Kerb7777

    Ok this is much needed! I just bought this phone and am still figuring out the ins and outs, but the battery life sucks bad!!! Now question that big honken thing looks like a leach attached to ur hand! Now is the phones case going to fit? No… so back to the drawing board boys! As awesome as this phone is i cant believe they couldnt come up with a better battery and we payed enough for this devise! Come on Samsung!!!!

  • SD_Scott

    I need this battery as I am recharging my phone three times a day already with the extended battery…  I use my phone all day long (tethering, streaming, texting, calling, etc.) and wish I could do away with the hassle of carrying a charger with me everywhere I go.  I don’t really mind the extra weight/bulky appearance as long as the damn thing lasts me a full day on one charge!

  • I already have an extended battery, carry an extra charger and also have a 3300 mAh external battery. That is still not enough to satisfy me in one day. Hopefully witht the addition of this i could.

  • Scolo1988

    I want to be able to turn on my GPS, use Pandora, stream it via Bluetooth in my car, and play Draw Something (not while driving obviously) without my battery dying immediately.

  • Iamkeeler

    I need it because what says slim and sleek like a monster battery doubling the size of my slim phone. Oh wait…

  • rolltidedad

    Awesome games and social content kills my battery…I’m tethered, and unfortunately it’s not wireless

  • I attend college in a very small desert town in New Mexico. My signal here is TERRIBLE. The only way I can make it through a whole day is to be in airplane mode most of the time, which kind of defeats the purpose of having a phone at all….

  • Mike W

    I want it because I wanted a mix of the RAZR maxx’s battery life and some ICS. Plus I love carrying a tank in my pants… 😉

  • i bought the 8 dollar extended battery that was on slickdeals the other week and it SUCKS. I get about the same battery life I do with my normal battery. I could really use a GOOD Extended battery. Help a brother out Kellex.

  • Uniball415

    If I need to start a fire with my phone battery in a survival situation like Bear Grylls at least I’ll know I’ll always have a charge

  • Jon

    Bought an extended battery for my Droid X and love it.  Getting a Nexus this week so this is timely!

  • seafarer76

    Need this for the next time I go to the Warped Tour.

  • dsass600

    Cause the battery sucks,

  • frutlups

    Need this for the next time I go to the Warped Tour.

  • It’s my Seido 3800mAh Extended Battery, and I want it now!

  • chssmsterwnook

    Well, my battery is at 100% now, and it wouldn’t last me to 9AM tomorrow morning, so I hope that I win so I can use my phone. 

  • bassman418

    No thank you. I’ll easily swap my battery out while the other charges. To make the phone look like that is insane. I got the Samsung OEM battery and charging box with cord for $28. Hell if I wanted to spend $75 I could of bought 2 more OEM batteries and had 4 batteries. Which will look much nicer and last MUCH longer than that beast. Also using AOKP and Franco
    Kernel’s nightly ( and with full brightness and clocked at 1344) I get great battery life. I did the same thing with my Thunderbolt. Had 3 batteries I rotated and never had power anxiety or giant heavy ugly phone. LOL

  • Chucky32

    I really need this extended battery because where I work (the dungeon) I do not get a very good signal and so I go through batteries like there is no tomorrow.  So pick me!!

  • allan

    I would just love to be able to go pass 5-6 hours without charging. Plus makes one hell of a phone anti thief throwing mechanism. 🙂

  • Timfantry

    I need this so i can Droid Life all day long with no interruptions. 

  • Blomgren23

    I need this like a fish needs water!

  • im a plumber. i stream the Sirius app on my phone while im at work all day,
    this will save me from having to sit in my truck for my lunch break charging my phone so i can make it through the rest of the day. i need this battery!

  • Migamix

    I’m rocking one now.. with the case designed for it… I’m trying to do a forced draincycle (crackflashing)… I’m sure like usual.. it will be all the way into lunch before I have to plug it in… got the wife one for her evo3D… now that looks silly (camera size)… so far… super happy… now I have 2 3800’s , OEM standard, oem ext. I’m good for power now.

  • I need it really bad. I’m a photographer and I am never able to keep my phone charged. Plz Pick Me

  • sam4327

    I need this battery badly! I work in a hospital doing 30 hour shifts at a time. My phone doesn’t even last the entire first half most of the time unless I let it be a pocket weight. 

  • An Idea

    They should of at least made the battery wrap around the phone and turn it into a case of sorts, allowing for even more battery while also not looking as bad with a little bit of protection.

  • Rhia R.

    Haven’t had the Nexus for too long, but having a spare battery (not to mention an extended one) always comes in handy in case I need some extra juice.

  • Wsifonte

    I need this badly because,

    I need it badly!!! :}

  • Guy

    I need this as much as the New York Mets need money

  • i need it because i live in northern wisconsin where any signal is precious and that really kills a regular battery.

  • I don’t really need the battery on account I am constantly plugged into a wall.  I have had the urge to fap at work where there isn’t an outlet.  I guess that would be kinda cool.

  • Travis Keany

     Like most of this stuff, I don’t need it, but I want it.

  • I need it pretty badly, Seems my Gnex wastes more battery life when I have bad to now reception, and often ends up dying when I’m in the middle of school ( a couple of dead spots all over campus)

  • Sometime my G-Nex only lasts me about 4 hours … with the extended battery.  Need this badly.

  • andystolemywallet

    I’m too broke to buy a GNex, but I never win contests that actually could help me, so I figured I’d take a shot.

    I need it to remind me to buy a Galaxy Nexus.

  • Res219

    Because I am sick of carrying around a charger!

  • Jae_85

    i would love one

  • 4g is a killer on my battery. I would love to have this to last longer

  • Kon-Kon Chao

    I want this pretty badly… like really badly!!!