Seidio 4500mAh battery for Galaxy Note 2

A little extra bulk gives you a big boost in battery life


The Galaxy Note 2 already packs a pretty sizeable battery, but one of the perks of having a removable cell is the option to upgrade it for a larger one. Whether you're looking for just that extra bit of capacity or want to have a spare for a day when you know you're going to drain the phone, Seidio is offering a 4500mAh replacement that offers extra juice for those who want it.

Hang around after the break to see a few impressions of this extended battery and see how it effects the usability of a device that is already quite large.

Seidio 4500mAh battery for Galaxy Note 2Being constrained by the battery slot in the back of the Note 2, the Seidio replacement battery is naturally going to be thicker — about twice as thick to our eyes — than the stock unit. The battery of course comes with a replacement back plate that mimics the same look and feel as the stock Samsung one, with the extra bulge necessary to fit the battery.

Even though the battery is primarily concentrated in the middle of the back plate, the shell tapers off smoothly from the high point down to the sides making it a little easier to hold. There are recessed areas at the top and bottom for the camera and S Pen slot, which is a nice touch. The one issue we came across was getting the back plate off as it doesn't remove as easily as the stock one, likely due to the differences in curvature and the battery raised in the middle.

The increase in thickness is hard to ignore on a device that is already so big and wide, but if you're willing to put up with the extra girth you're going to get a serious boost in battery life. Those with the Note 2 know that it performs pretty darn well in terms of battery life with its stock 3100mAh cell, so bumping up almost 50 percent to a brand new 4500mAh battery is going to make a difference.

If you're in need of even more battery life on your Note 2 and can put up with some extra thickness, give the Seidio Innocell 4500mAh extended battery a good look. It's available from for $64.95 with either white or black back plates to match your device.


Reader comments

Seidio Innocell 4500mAh battery for Galaxy Note 2


Don't like the extra bulk being there ALL the time. Would rather get a portable battery charger (like i currently have, Zagg Sparq) and use when needed.

Just too expensive... cheaper to get an extra battery and switch between the two.

Posted via Android Central App

Looks pretty awesome. Planning to get the Note 3 and one of these when it comes out.

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I see no reason for this, I'm a heavy user on my Note 2 and it still lasts me all day and another 6 hrs the next. Thats almost with nonstop use too.

The Note 3 will probably have 3800 mah or 4000 mah if it's almost 6 inches long.

An extra battery with desktop charger will barely run $50 compared to adding this massive amount of bulk. Besides, 3rd party batteries are never rated as good as OEM's, NEVER.

3800 or 4000 mAh battery? I don't know, the Galaxy Mega, which is bigger than the Note III only has a 3200 mAh battery.

They cut corners on the mega to bring the price down, the Processor is slower so it doesn't need such a large battery...

I really wish that respectable sites like Android Central wouldn't keep pushing these extended 3rd party batteries as if they were as good as OEM without testing to confirm that. I know they probably make a ton of money selling these in their shop but I feel it does both them and us a disservice.

Every chance I get I like to link to a site that has done tests and shows how pathetically over-rated these 3rd party batteries are.

Check it out. I know that its been a while now since the tests were run and maybe Seidio has stepped it up since then, but that is why having Android Central test it and let us know would be great.

I agree. The least they could do is actually review real world performance of the battery rather than write a glorified product description. I saw the headline and clicked hoping to see tests to show how much better the battery was than stock. Instead, I wound up with a blog version of an infomercial.

I know they have to pay the bills somehow, but a little more effort would be appreciated on this one.

To be fair, you don't see Google rating their ads or giving some reassurance that the ads are trusted, etc. even though the ads are catered to your needs.

This is too expensive. The zero lemon battery is twice as big for less than 50 bucks in amazon.

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I use the Zero Lemon 9300mah battery. It adds bulk I love being able to go almost three days without a charger. Works great when I'm out on duty and there is no car charger in a Humvee.

There a few things I don't like about it.

1. The battery is heavy. It doesn't add too much bulk but it does add plenty of weight.

2. It does not include NFC. I actually use Google Wallet a lot and miss it.

3. It doesn't come with a battery door but instead a TPU case that wraps around the phone. It's nice and protects the phone but it's not super tight. It you jostle the phone just right, you pop the battery out enough to restart the phone........a lot. Gets really annoying.

Other than that, it's great¡

Posted from my N2 via Android Central App

Try putting some paper towels in the case to push back against the battery to hold it in place. Or some other material will do.

The battery in the article is simply too large for only being 4500mah. If my battery is double the size I want to get double the mah (3100mah x2 = 6200mah not 4500mah! I love Seidio products as they are durable and long lasting but this is crazy. for only an extra 1400mah it's not worth it.


There's a reason the Zero Lemon is that cheap. I have a Seidio 3800 for my GNex, it works great, nine months in, and the back is as solid as OEM. No "pop offs", ever.

You get what you pay for.

Posted from the (4.2 updated) redheaded stepchild of the Nexii

The thing I hate about these extended batteries is that they never think about phone covers. I can't fit an otterbox around that lump.

Well the Otterbox is going to be designed for the stock case. If you put a bigger battery in, its just going to have to be thicker. There's nothing you can do to get around that.

U would think that in that size the battery is they could fit a lot more mah in it. Considering that most extended batteries also have 4500 mah in much smaller sized batteries. U should be able to pack around 6000 mah in it. Let's say for the LG 4X that comes with 2150 mah u can buy batteries with 4500 mah. So why was seidio only able to put 4500 mah that battery. Questions over questions.

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If the battery is twice as thick as the stock I would expect it to be 6200 not 4500. Not worth it for only 4500 mAh.

Is there a particular reason why extended batteries must be square/rectangular? Why can't someone make an asymmetrically shaped battery? Instead of just making the battery thicker, why not fill the standard battery cutout but also the unused space under the battery cover? It's hard to explain without a visual aid. Imagine a thin (2-3mm) battery almost the size of the backplate fused to a standard battery, with a battery cover only slightly larger than stock. This design would obviously conceal the sim card & sd card, but how often do you mess with those anyway.

I've noticed seidio is hit and miss with their batteries... Had one for my photon 4g and it worked great... Had one for my epic 4g touch... Not so much.... I'm happy with my mugen for my note 2..I also have a zero lemon battery but the case when from white to black and red and blue and every other color with dirt...

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I'd be interested in a comparison between zero limon and this battery. The bulk seems to be the same size yet the limon is a 9000mAh. And is cheaper.

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So it is twice the thickness, yet only has less than 50% more capacity? Considering how good the battery already is in the N2, this isn't very impressive.

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But you can get a 9200 from amazon for 44.. I have it look it up its the shit!

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This ^^^

It's hard to even use the stock 3100mAh anymore.. it pales in comparison.

People bitch about bulk, well you know what, my phone is a tool.. I need it to work how I want/need it to. The ZeroLemon battery does just that.

Thats one nice battery boost! Hope the upcoming nexus 5 will have a battery change possiblility!

Posted via Android Central App on my galaxy nexus^^