Develop Bugs

Mugen 1800mAh & 3600mAh Battery

Here's two batteries from Mugen Powers, a 1800mAh and 3600 mAh. From my understanding, The 1800mAh will work with the original stock battery cover. And of course the 3600mAh, has the bulkier build. Here's some links for those interested.
http://www.mugen-power-batteries.com/sony-ericsson/sony-ericsson-xperia-x10.html
http://www.xperiax10.net/2010/05/06/mugen-power-releases-1800mah-3600mah-batteries-for-xperia-x10/

3600mAh is sick but im going to order the 1800 mAh i wish they made a 2000mAh normal looking battery with the stock cover.
Thx for the post!

sexyvito said:
3600mAh is sick but im going to order the 1800 mAh i wish they made a 2000mAh normal looking battery with the stock cover.
Thx for the post!
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Let us know how it works out. I'm curious if there are any heat issues associated with the larger-capacity battery.

I just bought the 1800mAh, but it will be shipped in 10 days and will take 10 more to arrive!

anybody got a 1800mah one yet? thinking of getting one but im not sure they are worth it, has anyone had a battery from these guys before?

Mugen is one of the best second party manufacturer for batteries! It's really quality, no Hongkong Crap.

Interesting, Ive always wondered about suposedly good aftermarket batteries. ....Mugen you say !

OEM batteries is the only option unless the battery is inbuilt. Why are people so gullible? The manufactures always uses the best cells for their phones as it is part of the features present, i.e. long talk/standby time.
I have a HD2 and bought two original batteries which were not from Ebay.

mg77 said:
OEM batteries is the only option unless the battery is inbuilt. Why are people so gullible? The manufactures always uses the best cells for their phones as it is part of the features present, i.e. long talk/standby time.
I have a HD2 and bought two original batteries which were not from Ebay.
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maybe its because the people who know they are no good are so patronising when they are saying such. Not everyone has knowledge of these things and not everyone has had experience of this before but thats no reason to talk down to them. Its logical that these batteries should be better, after all they are rated 400mah higher, if thats not the case then you cannot blame the person who buys it thinking it is.

After market batteries is not a new phenomena and people buying such batteries should have learned by others which have made those mistakes before. It does not matter if it says Mugen or whatever on the battery.
I bought a battery for SE P1 on Ebay for 3 GBP and the picture was showing the retail package. When I received the package it was a "Walkman" branded when P1 is a business phone. I filled a complaint and received my money back. I would never do it without PayPal covering the full amount. I knew it from the beginning, if it sounds to good to be true it is not.

mg77 said:
After market batteries is not a new phenomena and people buying such batteries should have learned by others which have made those mistakes before. It does not matter if it says Mugen or whatever on the battery.
I bought a battery for SE P1 on Ebay for 3 GBP and the picture was showing the retail package. When I received the package it was a "Walkman" branded when P1 is a business phone. I filled a complaint and received my money back. I would never do it without PayPal covering the full amount. I knew it from the beginning, if it sounds to good to be true it is not.
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no, but what about somebody doesnt know anything about battery tech, or somebody who simply bought their phone from and o2 shop and has never had experience of other people buying aftermarket batteries? how are they supposed to know?
i came into this thread asking questions because to me it seems a little too good too be true, i know very little about battery tech but i do know a fair bit about other areas. other people, even those on this site may not have the slightest clue other than 1800 is more than 1400 and to talk down to them because of this is very unfair.

wertzius said:
Mugen is one of the best second party manufacturer for batteries! It's really quality, no Hongkong Crap.
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I laughed.
loggy said:
Interesting, Ive always wondered about suposedly good aftermarket batteries. ....Mugen you say !
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I laughed more. Beat me too it.
Mugen makes horrible batteries and have a long history of such incidents such as the ones above.

£26+ for 400mAh more - seems a bit steep IMO.
Better to buy a second genuine BST-41 from SE - seen them for the same money all over the place:
For example: http://www.amazon.co.uk/EMARTBUY-GE...6?ie=UTF8&s=electronics&qid=1274285908&sr=1-6
and
http://www.play.com/Mobiles/Mobile/4-/13628512/Sony-Ericsson-BST-41-Battery-For-Xperia-X1-Xperia-X10-Xperia-X2/Product.html?_$ja=tsid:11518%7Ccc:%7Cprd:13628512%7Ccat:Mobile+
So long as it arrives with SE logo and hologram on it, it's probably fine.

StampedChipmunk said:
£26+ for 400mAh more - seems a bit steep IMO.
Better to buy a second genuine BST-41 from SE - seen them for the same money all over the place:
For example: http://www.amazon.co.uk/EMARTBUY-GE...6?ie=UTF8&s=electronics&qid=1274285908&sr=1-6
and
http://www.play.com/Mobiles/Mobile/4-/13628512/Sony-Ericsson-BST-41-Battery-For-Xperia-X1-Xperia-X10-Xperia-X2/Product.html?_$ja=tsid:11518%7Ccc:%7Cprd:13628512%7Ccat:Mobile+
So long as it arrives with SE logo and hologram on it, it's probably fine.
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Not true. The P1 battery from Ebay did have a hologram but when comparing against the original battery there was a visible difference.

Mugen 3600 mAh battery
I got my 3600mAh battery on Friday and it works great! 5% drain an hour even with heavy useage. I can go the whole day without charging and still have 30% before I go to bed, beats the OG battery which I had to charge 2 times a day which sucked...

I'm personally a bit skeptical to 3rd party batteries, but I would like to have a 3600mha battery, the added thickness is not a problem. But as far as I know there only available battery from Sony is the stock 1500mha battery?

catfish said:
I got my 3600mAh battery on Friday and it works great! 5% drain an hour even with heavy useage. I can go the whole day without charging and still have 30% before I go to bed, beats the OG battery which I had to charge 2 times a day which sucked...
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That's exactly how my original battery behaves... lol

Not for me.
My original 1500mAh battery was dead by 3.30-4pm after taking it off charge at 8.30am and that was with moderate use. Its been dead by 2pm before now.
Got my 1800mAh Mugen battery and i can take it off charge at 8.30am and have it still on 40% at 5pm after heavy use during my lunch hour.
It does work much better

Saw an eBay auction for the Mugen battery set up by "Mugen Battery".
Read the lower lines and they want to add 19% VAT after the sale is completed to all EU buyers by sending you a separate bill for the VAT (totally against eBay rules)!
What a bunch of shysters!
-> http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=180522287953&ssPageName=STRK:MEWAX:IT

Evostance said:
Not for me.
My original 1500mAh battery was dead by 3.30-4pm after taking it off charge at 8.30am and that was with moderate use. Its been dead by 2pm before now.
Got my 1800mAh Mugen battery and i can take it off charge at 8.30am and have it still on 40% at 5pm after heavy use during my lunch hour.
It does work much better
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I agree. I've been using the Mugen 1800mAg battery and it lasts all day without a charge. I even use moxier on direct push for work email.
Sent from my X10i using Tapatalk

Captivate Batteries?

I was on eBay yesterday and they had multiple listings from several vendors for captivate batteries and now they are all gone. The ones I saw had two spare batteries and a charger for $15-$20. Anyone know what's up?

idk, as a general rule dont buy batteries from ebay. there was a study done on engadget i believe where they tested out diff batteries from diff manufactures and the batteries provided by the phone retailer performed better on average.

here is a OEM battery for the captivate bit on the high side though

Will an original Galaxy S battery work?

labbu63 said:
here is a OEM battery for the captivate bit on the high side though
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For an additional $10 you get a battery cradle along with a wall charger. Linky

And they have a 10% off deal currently. That's pretty sweet.

polarbee said:
And they have a 10% off deal currently. That's pretty sweet.
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Who has 10% off? The link to the Samsung site shows all items out of stock.

I bought batteries from ebay when my old ones used to die (for other phones) and they always worked fine. For the price I don't care if it performs 10% less.

good price on samsung captivate batteries
You can find a samsung captivate battery online at batteries4less.com. They have the original battery for $30.95 and a generic version for $14.95....plus a year warranty.

its not that batteries from ebay are bad. they just vary in performance. and you may have a higher chance of a battery failure.

I got one for sale $20 Shipped in the Lower 48. Do we have a market place to sell stuff?

I think that ebay/amazon batteries are a better choice than OEM. They might vary a little bit, but for the most part, the cost to benefit difference is better on the ebay version. I bought an extended battery off amazon for $13 and I still get 2 days use even with playing games on it. I couldn't even make it 8 hours on my original battery from samsung.

after how many moths did you guys change your battery?
i got my captivate in march this year...and i just wanna have an idea about when to expect a battery change.

Batteries are good to have several of

razvanadrian said:
after how many moths did you guys change your battery?
i got my captivate in march this year...and i just wanna have an idea about when to expect a battery change.
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my phone has been rocking the same battery since at least late December and i have had no noticeable loss in efficiency. Maybe I just have a good stock battery but they last awhile. and im a phoneiholic, im constantly on my phone doing many different things so the battery has had its workout

I bought generic batteries from ebay and none of them have failed. There are some disadvantages.
1. Varying performance
2. Faster charge loss
3. Slower charge times
From personal experience.

Do yourself a favor guys....

Stop the debacle and concern on whether or not the 1700mah, 1600mah 1500mah blah blah blah batteries are better than stock.. I have a LOT of experience with Li-Po and Li-Ion batteries (cell phones use Li-Ion technology) and I can tell you WITHOUT a doubt that all these knock off companies are full of SH^* trying to say there batteries are of a higher capacity than the stock battery while staying the same size. Although it is possible to cram more mah into the same size package with li-ion batteries it is VERY unlikely to be able to do so with the current technology out right now. Most of these companies rate their mah on a different scale and actually will pull the battery to a lower voltage to justify their claims when it dosent matter because cell phones have a safety feature that has to shut the phone down at the specified voltage to prevent fires. Yes fires, Li-Ion has a fire risk if it is depleted all the way, not the same risk as a Li-Po battery but a risk just the same. HTC has a separate department that deals specifically with batteries and I can assure you they know and use the most up-to-date batteries they can get their hands on for these devices. There is nothing for them to gain by using inferior batteries in our phone. Those that have purchased the seidio 1600 extended battery and claim to have a better life on the phone are under a placebo effect. If you are just purchasing this "Extended" battery as a spare than buy all means go right ahead but dont expect a miraculous two hours extra from it because it is of lesser quality than the stock battery. I have hundreds of dollars in battery testing and logging equipment and If you guys dont believe me i will run some tests on the stock vs. whichever battery you'd like me too and post the data for all to see, but Ive been down this road before with htc phones and have always come up with the same conclusion......The aftermarket "Extended" batteries actually have less mah's than their stock counterparts.
Of course Im not referring to the htc extended battery in this post, its obviously pushing more mah's with its monstrous size, lol.
....just sayin..

Oh' and to elaborate because Ive also read some concerns over the length of time for charging the thunderbolt (which does seem lengthy I will admit).
Since our phone has such a hard time time keeping up with a normal days use I believe what htc has done is given the battery a longer "saturation charge" for the battery to completely charge before it completes the charge cycle.
Li-ion batteries are charged on a 3 cycle charge system and stage two is what is considered the saturation cycle where the battery may sit at a relatively static voltage for a period of time to saturate the cells with current to top off the charge, some cell phones skimp on this step to give the phone a fast charge time which is termed "charge-and-run" and people assume the device has been adequately charged when it has not. For an adequate "FULL" charge without harming the battery or affecting battery life, typically li-ion batteries take approx. 3-4 hours.

So the 3 batteries I got for 12$ on ebay ARE paperweights?

1234567188 said:
So the 3 batteries I got for 12$ on ebay ARE paperweights?
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No. The two I bought for $44 are. How much do oem batteries cost?
Sent from my ADR6400L using XDA App

I wouldnt go that far, I doubt any of the batteries are "paperweights" yet. Im just making the point that the claims of higher capacity are unfounded and the cheap knock-offs are of lesser quality. Also check where the batteries are made. Good quality Li-ion cells come from Japan.
One thing to note with the cheapies is the temp while charging or under heavy use. Get a temp monitor app and compare between the stock and your aftermarket batteries, they will probably run hotter. Unfortunately I dont have any other batteries to test for you guys other than the stock OEM battery otherwise I would. If I pick any up Ill cycle the stock vs. aftermarket and post the data log between the two.
Also I didnt mean the "fire" comment to worry anyone, Li-ion batteries have protection curcuit that will render the battery useless and unserviceable if the cell reaches a voltage of 2.70v or lower which is where the chemistry of li-ion becomes unstable.

I'll ship your one of the two 1700 when I get it if you wanna test it and post results. Just ask that you ship it back after your done.
Sent from my ADR6400L using XDA App

good info, thanks!

1234567188 said:
So the 3 batteries I got for 12$ on ebay ARE paperweights?
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ha, I bought the same ones you did.
I didn't expect them to be as good as the 1400 mAh battery that comes with the phone. I just wanted to have a spare battery available in case I'm traveling and watching movies or something (on a plane). Even though it says it's 1500 mAh, I expect them to be more around 1200 - 1400 mAh.

Check this website for some information on similar battery testing.
http://batteryboss.org/
I used their results when I purchased the Seido 3500 for my Evo.

I've used Chinese batteries every chance I get. They do work. From an Eris to the Dinc. 3500mah. Never had a problem. Emails and games etc. I bought the extended battery along with the Tbolt. Just don't like the hump on the back. I'm on eBay every night waiting for the Chinese to strike with a extended battery. At least a Better extended back cover. For $10.99 free shipping ill wait 2 weeks for it. F%$% what u heard their cheap batteries work.
Sent from my ADR6400L using XDA Premium App

Every cheap battery I have ever used has worked great.... for 2 weeks.

reg83ny said:
For $10.99 free shipping ill wait 2 weeks for it. F%$% what u heard their cheap batteries work.
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lol thats hilarious

1234567188 said:
So the 3 batteries I got for 12$ on ebay ARE paperweights?
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ddgarcia05 said:
No. The two I bought for $44 are. How much do oem batteries cost?
Sent from my ADR6400L using XDA App
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This was the best part of the thread.

Awwz.... Well I DO know of one way.... connect a bunch of AA batteries in parallel, bust out a dremel, and create a frankenbattery!

ddgarcia05 said:
I'll ship your one of the two 1700 when I get it if you wanna test it and post results. Just ask that you ship it back after your done.
Sent from my ADR6400L using XDA App
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I appreciate it bro, but Id rather not be responsible for someone elses battery lol. Im sure Ill get bored soon enough and order up the batts then do some tests just for shi^s and giggles...

firedude12 said:
I appreciate it bro, but Id rather not be responsible for someone elses battery lol. Im sure Ill get bored soon enough and order up the batts then do some tests just for shi^s and giggles...
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If you do I recommend you buy the 1500 MyTouch4G batteries from ChiChi's htcexpress or their store on amazon. They should be the same a the 1700 Thunderbolt batteries and $20 cheaper.

y2ktibltd said:
Check this website for some information on similar battery testing.
http://batteryboss.org/
I used their results when I purchased the Seido 3500 for my Evo.
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When I get around to ordering up the batteries Ill post a chart like that on a seperate thread for our phone. I have some pretty sophisticated logging equipment. It shows the temp, charge capacity, voltage, mah, cell balance and health in an easy to read graph.
Im not a battery nerd but I used to be into RC helicopters BIG time and when you have a $5000.00 helicopter that can kill someone its just normal practice to have the equipment to check your $800 batteries so they dont fail 80 feet in the air and blow up or decapitate someone, lol

Heres a video of one of my helicopters (Trex 700 electric) , this one uses two 6s 5000mah li-po batteries and each one costs over $300 and they only last 8 minutes before there dead The video isnt of me however, I need a video camera to post mine but the helicopter is identical for the most part.
http://www.youtube.com/watch?v=ANsH5FZq6XA

(speaking from g1, nexus, and g2 experience only)
i've bought extended batteries for phones for less than $15 each all in the 2400 to 3600 mah range. they last 2-3 days with normal use. the oldest one is 3 years old (g1) and still performs like new.
iirc the seller was based in hongkong.
just saying.

the htc extended battery
personally of all the batteries i have tried this is by far the best one until sedio has an 3500mah then i will be getting that i think

[q] gold 2430mah battery for samsung i9000 galaxy s

Code:
http://www.ebay.co.uk/itm/GOLD-2430MAH-BATTERY-SAMSUNG-I9000-GALAXY-S-/190645284732?pt=LH_DefaultDomain_3&hash=item2c63582f7c#ht_2892wt_1270
Has anyone come across this before? Any reviews? Is this the Slim one?

I have never heard of this, but it looks amazing! Thank you. I'm gonna ask the seller. Seeming that the description claims it to be a Lithium Polymer battery it is very likely that it is normal sized. In the past I searched around and never found a lithium polymer battery for the Galaxy phones. It would be really nice if all phones had high capacity lithium polymer batteries.
My question is that something for the 19000 battery wise is the same size as all other Galaxy 1 variants correct?

Darkangels6sic6 said:
I have never heard of this, but it looks amazing! Thank you. I'm gonna ask the seller. Seeming that the description claims it to be a Lithium Polymer battery it is very likely that it is normal sized. In the past I searched around and never found a lithium polymer battery for the Galaxy phones. It would be really nice if all phones had high capacity lithium polymer batteries.
My question is that something for the 19000 battery wise is the same size as all other Galaxy 1 variants correct?
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Yes, you are right. After some more research @Wikipedia, LiPoly Batteries can have high capacity and can be used safely provided that you use the original chargers and not the cheap Chinese crap. BLE is not needed for them . I might buy one soon, If i do, will update this thread. Wish me luck.

lordxentris said:
Yes, you are right. After some more research @Wikipedia, LiPoly Batteries can have high capacity and can be used safely provided that you use the original chargers and not the cheap Chinese crap. BLE is not needed for them . I might buy one soon, If i do, will update this thread. Wish me luck.
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Well then best of luck to both of us I'm not sure why i couldn't remember at that moment, but any i9000 battery should fit the variants.

BTW guys, why buying from this seller when u have it on ebay.com a lot cheaper and with free delivery?
(I'm not allowed yet to post links so it's search for Item number: 280867655757 on ebay.com)

dvirs said:
BTW guys, why buying from this seller when u have it on ebay.com a lot cheaper and with free delivery?
(I'm not allowed yet to post links so it's search for Item number: 280867655757 on ebay.com)
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Oh wow. Thanks a lot. Much cheaper. Now I have to test. Just search for i9000 or Galaxy S 2450mah or 2430mah and find the correct one. This looks legit

dvirs said:
BTW guys, why buying from this seller when u have it on ebay.com a lot cheaper and with free delivery?
(I'm not allowed yet to post links so it's search for Item number: 280867655757 on ebay.com)
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Thanks Nice, Fine. +1
Darkangels6sic6 said:
Well then best of luck to both of us I'm not sure why i couldn't remember at that moment, but any i9000 battery should fit the variants.
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Yes, My current battery is a i9000 battery
Darkangels6sic6 said:
Oh wow. Thanks a lot. Much cheaper. Now I have to test. Just search for i9000 or Galaxy S 2450mah or 2430mah and find the correct one. This looks legit
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Well ebay says he's got positive feedback so just keeping my fingers crossed.

Hi !
Any feedback about this battery ?
Did you received it in time ?
Is it really better than the 1500 or 1800mAh ?
Thank you

To good to be true I think
I'd also love a battery which claims what this one does at this price, but It seems to good to be true. A bit of Googling shows a review for this battery with 2/2 "average" reviews which show it did not perform as promised (but it did work). There are also some other review sites which say pretty much the same thing. (I'd love to post the URL but can't because I'm a noob. A search for B005O8S4V0 on amazon.co.uk will find this.
Also, I think that if this technology was legit Samsung would have shipped it with the unit itself !!
Pity, I was really hoping it would work. I hate it that all the aftermarket batteries I have purchased sucked compared to the original.
DG

Yep i've finally bought a 1800mAh PolaCell battery. It seemed more secured to me.
Maybe i'm wrong (I hope for those who bought it) but as you said the 2430mha chinese one is too cheap to be true.

Lithium Ion is different to Lithium Polymer, the one on the link is a Lithium Polymer
More Details here
Code:
http://jartiuch.wordpress.com/2007/11/01/nimh-or-li-ion-or-li-polymer-what-to-consider%E2%80%A6/
Basically, Lithium Polymer batteries can have the same size but higher capacity, so there is a good chance that the battery is real.
But again I haven't still bought it cause I am running on a tight budget, but I am planning to buy one when I am selling my phone so that I can buy an Galaxy S3.

That doesn't look like it could be a Li-Ion Polymer cell due to the rounded edge. Only a square edge or foil pack would mean it's a true prismatic cell which is the casing for Li-Ion Poly cells.
The 3.7V vs 3.6V already shows that most of these are using a technology better than just standard Li-Ion, so it wouldn't really be much of an improvement.
Different manufacturer use different materials for anode, cathode, and electrolyte and these Chinese companies use the cheapest ones. So you're either getting what you pay for or getting ripped off depending on how you look at the false advertising.

I heard this battery(same label/producer on other handsets) is very bad.

I think I grabbed the wrong one:
http://www.ebay.com/itm/28086765575...X:IT&_trksid=p3984.m1497.l2649#ht_3124wt_1163
It does look the same, but 2450. Interestingly it is made in Japan, not China. Here's the weight, plus the OEMs that I have for comparison:
32.3g OEM Captivate 1500mAh
34.3g Japan "Gold" 2450mAh
36.65g OEM Epic 1800mAh
So I was expecting it to come out around 1650mAh, but it gave me 1910 the first time. I'll use it for a few weeks and run another test. Not really sure what to expect though.
Edit: This battery is crap. 2nd run at 200mAh it failed at 4 hours, about 850mAh drained. Now it's hovering just over 3.5v, right over where the phone would shut down. Trying to get the rest out so I can cycle it again, but I think it will be getting a funeral tomorrow.

Been running the "2430mAh battery" for about a week now with Battery Monitor Widget. Estimated rating is ~1300 mAh. Not great, but still gets me through the day with light-moderate usage.
For $10 it was worth a shot. At least the battery isn't COMPLETE garbage. :S

I already have an 1800mah anker and it is working fine for around $10....I am getting an oem epic battery tomorrow hopefully and I just ordered this
http://www.amazon.com/Mugen-Extende...Z9TQ/ref=sr_1_2?ie=UTF8&qid=1338532343&sr=8-2
If they send a real mugen battery that works than I will be ecstatic.

cbalt said:
I already have an 1800mah anker and it is working fine for around $10....I am getting an oem epic battery tomorrow hopefully and I just ordered this
http://www.amazon.com/Mugen-Extende...Z9TQ/ref=sr_1_2?ie=UTF8&qid=1338532343&sr=8-2
If they send a real mugen battery that works than I will be ecstatic.
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Don't buy from that seller, seller1on1 did not ship a real mugen battery instead he shipped a cheap ass 3500mah chinese battery and door you can get on ebay for $8.

This has been the strangest battery. After the second cycle I got 2300mAh out of it, but the phone was randomly shutting off. It started behaving after that though.
From what I understand some of these no name batteries come from good manufacturers' fail bins. They sell them off cheap instead of dumping them in landfill. So if that is the case, it's kind of a gamble.
http://dl.dropbox.com/u/21284891/Screenshot_2012-06-17-05-13-04.png

Cheap Gold Battery to Samsung i9000
Darkangels6sic6 said:
Oh wow. Thanks a lot. Much cheaper. Now I have to test. Just search for i9000 or Galaxy S 2450mah or 2430mah and find the correct one. This looks legit
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Hello,
I buy my gold battery from the webstore pixinf.com they are cheaper than ebay and have fast shipping. The battery work more than 2 times than original one.
They give 2 years warranty and the battery is made on japan. :victory:
Regards

I just got the gold battery from eBay. 2430MAH along with the battery charger for charging the battery externally. It was about $8.50 and comes within a week. Just search i9000 gold battery. I'm pretty sure I've got it calibrated. With light use I get up to 13 hours so far and up to 10 hours approximately with heavier use. Amazing buy so far
Sent from my SGH-I897 using xda app-developers app

Galaxy Nexus After Market / Third Party Batteries with NFC

Has anyone found any on Ebay or else where that have maintained true NFC functionality?
I've seen a few on Ebay but the labeling is so "China town," I don't know if I trust them.
(no offense to any Chinese )

Did you try Amazon? I think Seidio makes some.
Sent from my Galaxy Nexus using Tapatalk 2

If you want extended look for Hyperion brand. Got it on eBay for $20 and the nfc works great. Battery life more than doubled too. Well worth it.
Sent from my Galaxy Nexus using Tapatalk 2

The most reliable battery makers are
Seidio
Mugen
Both have 3800 - 4000mAH batteries available with NFC support. Will cost ~$90 though.
Do NOT get the cheap-o batteries selling on ebay.

aohus said:
The most reliable battery makers are
Seidio
Mugen
Both have 3800 - 4000mAH batteries available with NFC support. Will cost ~$90 though.
Do NOT get the cheap-o batteries selling on ebay.
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Seidio or Mugen don't use any better of a battery than most of the cheap ones. You are just paying for a name and false security.

aohus said:
The most reliable battery makers are
Seidio
Mugen
Both have 3800 - 4000mAH batteries available with NFC support. Will cost ~$90 though.
Do NOT get the cheap-o batteries selling on ebay.
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Click to collapse
Those battery are also made in China. You just pay more for their brand.
And those two brand don't even have their own factory.
I just got my 4000 mah battery with NFC for 10USD. It also works well.
And of course, they're made in China.

Hyperion review
Just got this that arrived yesterday morning:
http://www.amazon.com/Hyperion-Exte...APABILITIES/dp/B007C8XRJY/ref=pd_rhf_gw_p_t_1
I guess I'm one of the lucky ones, after reading reviews, because the cover that came with my snapped right on, with no problem whatsoever. I started fitting it at the bottom and worked my way around snapping the clips in and wala - perfect fit.
I also bought this cover:
http://www.amazon.com/Hyperion-Exte...ompatible/dp/B0083HHU5A/ref=pd_rhf_gw_p_img_2
It's black/honeycombed and fits perfectly over the new back, giving the whole phone a factory made look. The only "negative" to it, is the volume buttons and the on/off buttons are now alot more sensitive - the cover goes over them and it doesn't take much now to depress one of the buttons - I'm actually liking it more, as I get used to it, but I imagine you could carve the rubber off at the buttons with a knife if it bothered anyone.
Anyway, after reading the little card that comes with it and the "charge it for 12 hours, kill it 4 or 5 times cycling" - I plugged it in and after about 2 hrs, it was saying fully charged. I needed to use my phone, so I turned it on - made a couple phone calls with it and decided just to use it. I read cycling doesn't matter with a Li battery anyway, and I was just excited to see if this thing was for real.
It's 10:43 the next morning - my battery has 19% left on it and it has been on the battery for 18hrs, 8mins when I unplugged it yesterday!!! I am a heavy user too - all throughout yesterday, played a few games, many visits to facebook, web surfing texting, 10 or so short phone calls - then again this morning, surfing the web for a good 1.5-2hrs gathering news.
All I can say, is this is unheard of - I've NEVER been able to do this on the stock battery. I'm going to run this all the way down today, so I'll post back when it actually shuts down, but it's for real folks - order it! I'm thinking about ordering another one for backup - I'll only have to charge once a week!

mbh87 said:
Seidio or Mugen don't use any better of a battery than most of the cheap ones. You are just paying for a name and false security.
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In this case, quality matters. I've already researched the differences. You won't be getting as good battery life as the one's from Seidio or Mugen. Please do the research before saying such things, as you're misleading others.
It's already been confirmed that the cheap Ebay batteries are of low quality.
Just because it's Made in China, doesn't reflect the quality of the build. Seriously? Everything is made in China...
Look through the posts on this forum about the ebay batteries. Almost everyone says they found barely a difference with extended battery.
Please check out this thread: People that bought the cheapo ebay batteries say the quality was terrible.
http://forum.xda-developers.com/showthread.php?t=1694520&highlight=mugen
another test by a user that bought the cheap-o 3900mAH battery from ebay ($10)
http://forum.xda-developers.com/showpost.php?p=25968264&postcount=137
Poor results

aohus said:
In this case, quality matters. I've already researched the differences. You won't be getting as good battery life as the one's from Seidio or Mugen. Please do the research before saying such things, as you're misleading others.
It's already been confirmed that the cheap Ebay batteries are of low quality.
Just because it's Made in China, doesn't reflect the quality of the build. Seriously? Everything is made in China...
Look through the posts on this forum about the ebay batteries. Almost everyone says they found barely a difference with extended battery.
Please check out this thread: People that bought the cheapo ebay batteries say the quality was terrible.
http://forum.xda-developers.com/showthread.php?t=1694520&highlight=mugen
another test by a user that bought the cheap-o 3900mAH battery from ebay ($10)
http://forum.xda-developers.com/showpost.php?p=25968264&postcount=137
Poor results
Click to expand...
Click to collapse
If you read correctly I said most of the Chinese batteries. My statement still stands. You are paying for a name and false sense of security.

mbh87 said:
If you read correctly I said most of the Chinese batteries. My statement still stands. You are paying for a name and false sense of security.
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Click to collapse
Your statement doesn't stand. You're insinuating that the cheap-o Ebay batteries are just as good as the Branded Seidio / Mugen batteries, when that is clearly not the case.
Shifting the goal posts aren't ya. Seriously, stop spreading misinformation. I gave you at least 3 sources from various forum members that concurred the battery life discrepancy is vastly different between the generic and branded ones. (Mugen/Seidio)
Did you provide a source showing that the generic ones off of eBay have as good or better quality than the branded ones? Looks like no.
I have sources to back my claim up, you have, well, none.
example of a bad battery (trexcell)
http://www.amazon.com/Trexcell-Samsung-Compliant-Extended-Compatible/dp/B007EZ2PU2
and FYI, Seidio uses battery cells made from Japan.

I have both the seidio and the hyperion NFC batteries and they both work well for me. Can't complain about either of them. 5 hours plus screen on time usually. Yeah yeah, mod this kernel and underclock/volt that kernal and "I can get that on stock"...well I can't. I like the bigger battery as well.

I'm going to run this all the way down today, so I'll post back when it actually shuts down, but it's for real folks - order it! I'm thinking about ordering another one for backup - I'll only have to charge once a week!
Click to expand...
Click to collapse
Went 24.5 hrs before it gave up and shut down - recharged to 100% in about 2 hrs and I'm at 14 hrs running with 66% left - I'm loving this! And as mentioned, I'm preferring the bigger battery/weight feel in my hand, then before. Maybe Samsung should make their phones with bigger batteries and heavier!..lol.

anyone know does anker come out battery for i9250?

kitaeshi said:
anyone know does anker come out battery for i9250?
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Click to collapse
Wondering about this as well

So, is there any NFC-battery somewhere around 2-3k mAh? I'd love to get some more hours in between every recharge (i can barely get home from work before the phone wants to die), but the ~3,8k batteries just makes the phone too bulky for my taste..

Twiggeh said:
So, is there any NFC-battery somewhere around 2-3k mAh? I'd love to get some more hours in between every recharge (i can barely get home from work before the phone wants to die), but the ~3,8k batteries just makes the phone too bulky for my taste..
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Mugen has a 2000 mah one.. I've had it for 5 months and it works great. Definitely gives you the extra juice while it still fits with the standard battery door.
Sent from my Galaxy Nexus using Tapatalk 2

What about the QCell battery?
Sent from my ADR6425LVW

I Am Marino said:
What about the QCell battery?
Sent from my ADR6425LVW
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I heard QCell was crap, per Amazon reviews at least.

mbh87 said:
If you read correctly I said most of the Chinese batteries. My statement still stands. You are paying for a name and false sense of security.
Click to expand...
Click to collapse
How much do the good Chinese batteries cost?
How does one identify the good ones in advance?

I have the Hyperion 3580mah battery and love it, NFC works, and I get about two days of battery life with a single charge
Sent from my Galaxy Nexus using xda premium