Develop Bugs

[Q] Best aftermarket BATTERY?

There is a company called Anker that makes high quality - high capacity aftermarket batteries for phones, however, I don't think they have one for ours yet.
I'm a little gun shy to buy aftermarket batteries again...
My experience with Anker Batteries:
I had one for my MT4GS and although it did last much longer, I kid you not it does something really weird to the phone. Call me crazy, but I had random people confirm this with their very own eyes. If you've experienced this too, you know exactly what I'm talking about.
1. Like I said, I kid you not, when I put in the higher capacity battery, it made the screens color look more washed out and blurry. Crazy, crazy I know, but it's darn true. Has anyone else experienced this?
2. For whatever reason, the phone would freeze often as well, whereas before with the OEM battery, everything was fine. I had to pull the battery almost 2 times a day to restart it from a freeze.
Interesting....

I was looking for an extended battery for this phone as well but when I searched for the Anker brand as I have it for another device, they all said not compatible with the AT&T or T-Mobile version.
http://www.amazon.com/s/ref=nb_sb_s...msung+galaxy+s2&x=0&y=0&sprefix=anker+samsung

The batteries for the international version are a different size than ours so no, they won't work.

also the other batteries might not come with the NFC
if you don't mind losing the NFC feature on the phone, then you can use the 2000 mAh original batteries from samsung

AllGamer said:
also the other batteries might not come with the NFC
if you don't mind losing the NFC feature on the phone, then you can use the 2000 mAh original batteries from samsung
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What? The NFC is in the battery??? That's crazy...

zaventh said:
What? The NFC is in the battery??? That's crazy...
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personally i prefer this over having it at the back cover like on the Nexus S
this means i can chance the phone skin any time i want without worrying about losing NFC
i saw many nice back covers for the Nexus S but couldn't change it as they do not include the NFC antennae on the aftermarket back covers for the Nexus S

AllGamer said:
also the other batteries might not come with the NFC
if you don't mind losing the NFC feature on the phone, then you can use the 2000 mAh original batteries from samsung
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No way! you 100% sure about this? I was planning to buy an extra battery but now I'm hesitate to buy. How do I know which battery has NFC and which battery don't? I thought on the galaxy S2 they integrated onto the phone.

just wait for a new version of the 2000 mAh with NFC
the last one i saw on the samsung website did not have NFC build in

AllGamer said:
just wait for a new version of the 2000 mAh with NFC
the last one i saw on the samsung website did not have NFC build in
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Would the 150 mAH additional warrant the large price? (probably $50+)

Tmobile Galaxy S2 has the same battery as what...?
I'm looking to get a spare battery and external charger for my S2. Looking for anker or chichitec, what other device has the same compatibility as ours. Which ones will fit?

You may have a hard time finding cheap batteries for this phone because the NFC antenna is built into the battery. If you do find one, there's a chance your NFC will suffer because of it. If you don't use NFC, that may not be a problem. I on the other hand, use it daily.

The Samsung Infuse has the same battery.
Sent from my SGH-T989 using xda premium

There are some cheap ones over at thE BAY around $10 for 2 battery plus wall charger OEM are around $30.

does the cheap one from ebay include NFC ?

Extra set of quality batteries?
Has anybody here bought a quality battery from ebay? there are batteries ranging from 10 dollars to 40 dollars and I'm just wondering if any of them are good? i don't want such an expensive extra battery but i also don't want a cheap battery that will mess up my phone.. speaking of which, can a bad battery mess up a phone's internal system? Thanks for the responses.
if possible, provide a link to the ebay listing or just tell me what i should specifically search for.

i'll suggest buying the real Samsung batteries if you can afford $40

AllGamer said:
i'll suggest buying the real Samsung batteries if you can afford $40
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thanks allgamer for the response. the thing is i can't afford the $40. should i just wait till a quality replacement battery comes to market? i used to have an htc pro and i bought cheap batteries on ebay for it that came in handy and worked well but my phone eventually died out (screen does not turn on all the time but it might be a wiring problem and not a battery problem). i was hoping there was a similar economically viable option for the galaxy s 2.

it might take a bit
because these news batteries comes with the NFC
so the cheap ones in ebay or where ever they don't usually include the NFC

I doubt it. And the Infuse has a lower mAh

AllGamer said:
it might take a bit
because these news batteries comes with the NFC
so the cheap ones in ebay or where ever they don't usually include the NFC
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i don't really need NFC with the extra set of batteries. NFC's potential hasn't been fully realized yet and i don't have much use of it as of now.
one question though.. if i buy those cheap batteries on ebay, will it destroy my phone because of incompatibility issues?

Spare Battery

Anyone aware of any place to buy a cheap spare battery for the Galaxy Nexus? I've been having trouble finding anywhere to buy one online. I'm guessing it's maybe too early?

NFC is in the battery, so I don't think cheap is gonna happen.

Seriously in the battery?

ztm.000 said:
Seriously in the battery?
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yes it is in the battery

gambiting said:
yes it is in the battery
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Is it really? Dammit. That sucks. I've been able to snag spare batteries for my previous phones, including my Galaxy S, for $10-$15.

There is no proof that NFC is "in the battery." There is merely speculation since NFC verbiage is included on the stock battery.
Some say the battery just acts as an antenna for NFC and the actual chip is in the phone (likely).
Some say the battery contains every necessary NFC component (unlikely).
Whatever the case, cheap knockoff batteries will most certainly be available soon. I had three ($15 shipped) Anker brand batteries for my SGSII. Didn't care about NFC since it's currently such a limited feature I never got a chance to even try it (nor did I on my I9020A).
So, we will have a plethora of cheap replacements soon. Anyone who thinks the only available replacement will be a genuine Samsung battery is dead wrong.

2300mah battery from Ebay

Has anyone tried this battery yet?
2300mah battery from Ebay
Do the GSM and CDMA version both use the same size battery? Would this one be a universal replacement?

Its 2350, and doesn't say anything about NFC.
Also wouldn't it need a new back plate?
And no the LTE and GSM versions use a different battery shape completely. Not interchangable =/

don't trust no-name battery capacity claims.
with the same battery tech, capacity will be basically a function of volume... so if it fits in the galaxy nexus, with the current cover... it's the same volume... so my guess is this is the same or less capacity in reality.
its possible its a more advanced battery technology, but for $6 on ebay , doubt it.

Do the GN batteries need to have an antenna for the NFC or is that integrated into the cover?
I don't have my GN yet, ordered from Amazon. Can't wait to get it!

Neo3D said:
Do the GN batteries need to have an antenna for the NFC or is that integrated into the cover?
I don't have my GN yet, ordered from Amazon. Can't wait to get it!
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The NFC is integrated in the battery, not the cover
And you don't need to buy a battery with NFC capability, it's not required

hiohokaybye said:
The NFC is integrated in the battery, not the cover
And you don't need to buy a battery with NFC capability, it's not required
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This. Some people here act like NFC is required for the phone to function..

Correct me if I am wrong.
The antenna for the NFC is located in the Samsung battery that came with our phone. If we want NFC, we should get a battery that has built-in antenna too.

So, if we get a generic battery off Ebay, we'll lose the NFC function?
I agree, it's not a deal killer, not much you can do with NFC right now.

Battery advice needed

Hello can anyone recommend a battery that lasts longer than oem ones?
That doesnot cost more than 45 usd. Nfc is not important for me.
Thanks

from what i have seen you will get no battery for 45usd that 1. has nfc 2. lasts longer than oem
the best battery for this price is the oem extended battery which is good and has nfc

gingerman1984 said:
Here you are!
One of the leading brand in aftermarket batteries, best quality/price comparison you can get!
2000mAh (officially 14% longer, but much more reliable in reallife use) at exactly 44.95$ lucky you
http://www.mugen-power-batteries.co...d-battery-for-samsung-galaxy-nexus-i9250.html
It is much better than the original battery.
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^^^^^^^^
NOT compatible with CDMA (Verizon) version of the phone.

I don't understand what makes people think that 3rd party battery manufacturers make better batteries than OEM.
OEMs designed and produced the equipment.
More mAh, yes; better battery, probably not:
http://techcrunch.com/2010/04/21/ar...tery-manufacturers-deceiving-their-customers/
Btw, Mugen, though being one of the the most expensive, actually has one of the lowest performance.

MilkPudding said:
I don't understand what makes people think that 3rd party battery manufacturers make better batteries than OEM.
OEMs designed and produced the equipment.
More mAh, yes; better battery, probably not:
http://techcrunch.com/2010/04/21/ar...tery-manufacturers-deceiving-their-customers/
Btw, Mugen, though being one of the the most expensive, actually has one of the lowest performance.
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because people believe these manufacture's ridiculous mah claims. here's some more testing on aftermarket batteries. http://batteryboss.org/

Thanks for the info.. Have anyone actually own the third party battery?

I'm on the same boat looking for a decent spare battery for use. No need for extended but NFC is a plus.

cloney said:
I'm on the same boat looking for a decent spare battery for use. No need for extended but NFC is a plus.
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Bump any more advise?

[Q] Regarding 3500mAh battery!

Hey guys I just saw a 3500mAh battery for SGS2 on ebay. Is it safe to use such battery? I mean it won't harm the phone, will it? :O

Probably won't harm the phone, no.
I bought a 3500mAh obscurely branded Chinese battery in mid-December. Tried it out for almost two weeks, a bunch of charge/discharge cycles & estimated its real capacity was around 1900mAh. It also used to heat up a lot on recharge (mid-high 40's Celsius, which isn't normal when the phone isn't being used whilst charging).
I took it back, got a refund & bought an original Samsung 2000mAh battery. Hasn't missed a beat, is obviously close to its advertised capacity given I get around 20% more use out of a charge than I do with a 1600mAh battery.
Obviously your mileage may vary if you buy one of these (you might have a better experience than I did), just thought I'd let you know about my experience.

MistahBungle said:
Probably won't harm the phone, no.
I bought a 3500mAh obscurely branded Chinese battery in mid-December. Tried it out for almost two weeks, a bunch of charge/discharge cycles & estimated its real capacity was around 1900mAh. It also used to heat up a lot on recharge (mid-high 40's Celsius, which isn't normal when the phone isn't being used whilst charging).
I took it back, got a refund & bought an original Samsung 2000mAh battery. Hasn't missed a beat, is obviously close to its advertised capacity given I get around 20% more use out of a charge than I do with a 1600mAh battery.
Obviously your mileage may vary if you buy one of these (you might have a better experience than I did), just thought I'd let you know about my experience.
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Thank you very much!

chinmayanaokar said:
Hey guys I just saw a 3500mAh battery for SGS2 on ebay. Is it safe to use such battery? I mean it won't harm the phone, will it? :O
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Well i heard that their batteries exploded in their phones......so be careful.....better pay for a better one instead of having a chance to ruin your expensive phone.
Sent from my GT-I9100 using xda premium

I have one of those I got from DealExtreme and it is great. It lasts 2x longer than the original Samsung battery.
I take care not to swap them often, because I am afraid that this action might damage the original cover, eventually breaking it.

Battery Life
I am still using the 1650 mAh battery (stock) for my S2.
I am really facing some battery issues. Its charging almost all day !
Yes I am using 3G all day and WiFi HotSpot too. But use wifi at home. Thats when I get good battery life. Any better way to conserve some battery ?
Any tips might help
Thanks

Got mine a few days ago from eBay and its been fine so far. It last more than 2x the regular battery. Phone does not heat up or anything strange..
Sent from my GT-I9100 using XDA

well i an getting with the original battery 24H of usage.
with the 3500mah i am getting 60H of usage... so my 3500 is truly 3500mah!
the language is hebrew.
i use congnition rom 1.51 and siyah kernel.

So, where can I see a trustful review on batteries for SGS2? What is the most extended one?
It's really frustrating that my current stock battery is only enough for 2 hd video view (4-5 hours).
Also, the higher the mAh value the more battery lifetime is, right?
I would really want to buy 3500 mAh, but it costs so little.
And the official Samsung variant that offers the longest lifetime of a battery for SGS2 is this one, maybe Mugen 3500 mAh is the best choice out there?
chenrp said:
well i an getting with the original battery 24H of usage.
with the 3500mah i am getting 60H of usage... so my 3500 is truly 3500mah!
the language is hebrew.
i use congnition rom 1.51 and siyah kernel.
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What is the model name of the battery? Is it being overheated in comparison to stock one?

why should it overheat?
it is lithium ... same same

Yes, it's special lithium from China extracted under full moon and blessed by a thousand virgins
Really now, if it was possible to manufacture a battery having more than double the capacity of the stock battery while taking up the same volume, don't you think the megacorporate Samsung would buy that technology immediately in order to use it themselves ? "Too cheap to be true" is valid even here; most knock-off batteries either are fake ("9999 mAH SUPER EXTRA" sticker over the original rating), or will degrade quickly in time leaving you with a dud.
Since there are already fake electronic components...
... why not fake and cheap batteries too, certainly seems to be a high demand for them.

a. it is not the same volume! in is twice as much as the original.
b. the i9100 has a circuit that allows a slow stable charge rate so i dont think it will damage the battery.

As well as being made of inferior materials, not being subjected to the same QC, not having the fuel gauge chip present in original Samsung batteries, you pretty much get what you pay for.
My advice would be to avoid non-original batteries altogether, and given a 2000mAh original battery will cost around the same as one of these 3000mAh+ batteries with all their problems & poor life, it's a no brainer.
Stick with Samsung batteries.

fuel gauge chip?
i would like to see that chip in an any cellphone battery please.

If you're not aware of/don't know about the fuel gauge chip in original SGS2 batteries, you've probably been living under a rock since the phone was released
chenrp said:
fuel gauge chip?
i would like to see that chip in an any cellphone battery please.
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MistahBungle said:
If you're not aware of/don't know about the fuel gauge chip in original SGS2 batteries, you've probably been living under a rock since the phone was released
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well i think that you misunderstood the meaning fuel gauge.
there is no chip in the battery that is in charge of the fuel gauge.
furthermore there is no use of recalibrating the battery in out i9100 model.
all you gave me is a link you Google...
please... show me that chip! i would like to learn something new about lithium batteries..

Plz can you Possible link topic of the battery
Sent from my GT-I9100 using Tapatalk

chenrp said:
why should it overheat?
it is lithium ... same same
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What about the other question that you chose to ignore, regarding the battery's model that you mentioned.

thanks for the info guys,
cuz I need a battery really disparately cuz I use so much data and sync :'(
I couldn't find something really reliable feedback from viewers, and i'm trying to find something with good quality as well!
guess i have to search further!

VAXXi said:
Yes, it's special lithium from China extracted under full moon and blessed by a thousand virgins
Really now, if it was possible to manufacture a battery having more than double the capacity of the stock battery while taking up the same volume, don't you think the megacorporate Samsung would buy that technology immediately in order to use it themselves ? "Too cheap to be true" is valid even here; most knock-off batteries either are fake ("9999 mAH SUPER EXTRA" sticker over the original rating), or will degrade quickly in time leaving you with a dud.
Since there are already fake electronic components...
... why not fake and cheap batteries too, certainly seems to be a high demand for them.
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Click to collapse
You have a point mate! Thanks