yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
The battery is still going with the charge cycle of working normal, calibration I guess... Used it today for more than 10 hours downloaded the battery monitor widget and I am giving it the complete charge to see the estimated Mah, it says:

Charging: Ac Plugged

Health good 36.0 C/4185mV

Techno Li-ion 2047/2300mAh

Avaiable 90% Estimated+516ma

Full estimation 19m(26m)

It is still charging seems ok to me. :cool:

Edit- Just in case you buy it.

I got asked by an ebay member how I made the battery work...

here is what he asked me.

You just purchased a bluegeta 2300ma battery for your att galaxy s 2 according to their ebay site. How did you get it to charge? I just received the one I ordered and installed it in the phone but nothing happens. I also tried it in a strip charger but it shows completely charged or no need to charge. Let me know if what you did.

I replied:

what I did was take out the battery check the gold pins on top which has a plastic transparent cover(removed it)place it on phone connect charger and turn on.

he replied:

Thanks for the reply. the plastic coating was the issue. did not see it and nothing about it on the box.

So before using it you must take out that plastic coating.

And The battery finished charging... 2nd charge cycle since new, here is what I got.

Look at picture below..
[AT&T Samsung Galaxy S II SGH-I777] AntwanL:
Can you confirm if this is the right one?

http://item.mobileweb.ebay.com/viewitem?itemId=260896277829&index=1&nav=SEARCH&nid=14194724353

I plan to order one today
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
Yes that is the one I bought. But I may be lucky to have it working, The feedbacks on the seller page are all positive except for 2 of them having problems with shipping so I think it is legal. I hope everything goes fine.

;)

oh and another thing.. The battery needs to be charged for 10 hours the first 3 times.... I confirmed this because if I charge it for a couple of hours when I disconnect it, it automatically changes in an instant from 100 to 98%.. but after 10 hours it stays at 100% when disconnected. It says on the papers that comes with the battery.
[AT&T Samsung Galaxy S II SGH-I777] AntwanL:
Thanks for the confirmation! And I did read the 10hour thing, I don't mind a tricky setup process aslong as I get a decent battery boost.
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
Ok ;). Good luck.
[AT&T Samsung Galaxy S II SGH-I777] brentett:
so would you say this battery is better than the stock one?
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
For me it is working great. ;)
[AT&T Samsung Galaxy S II SGH-I777] AntwanL:
Ordered mine last night so just a waiting game now
[AT&T Samsung Galaxy S II SGH-I777] dream5hift:
Same here. It shipped already so I should get it the end of this month.
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
I hope everything goes well.

Sent from my Samsung Galaxy Sgh-i777 :)
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
I hope it goes well also.

Sent from my Samsung Galaxy Sgh-i777 :)
[AT&T Samsung Galaxy S II SGH-I777] AntwanL:
Thanks again for the heads up on the battery and taking the plunge on testing it out, much appreciated
[AT&T Samsung Galaxy S II SGH-I777] Caliesv:
Sooo, can u charge it in the phone with out the bootloop thing going on?
[AT&T Samsung Galaxy S II SGH-I777] AntwanL:
The Ebay ad says it's an i777 battery so I sure hope so haha
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
I am charging it right now in my phone...
[AT&T Samsung Galaxy S II SGH-I777] joeybear23:
Have you bee through enough charge cycles to give us some numbers yet?
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
3 charge cycles.. and it still needs to be charged like 10 hours for use.. it seems to last a little longer than stock but not anything to be surprised about.. I mean for 9 bucks what do you expect.

Phone in battery use for 1 hour and 22 minutes and still marked 100% of battery..

An example of what I have seen today. It all depends of how you use it.. but compared to stock for me, it last a little longer...
[AT&T Samsung Galaxy S II SGH-I777] EhHowzit808:
Read the whole thread.

Thanks to you, I just ordered myself a battery, too.
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
I hope everything goes well. And as I said.. for the price it is great it does last a little longer than stock.. I bought because anyway I was gonna buy a backup battery. After each cycle of charge it seems to work better.. Calibration I guess.
[AT&T Samsung Galaxy S II SGH-I777] spexwood:
I also went ahead and ordered this battery. Ill use Battery Monitor Widget (full version) to perform some tests too once it arrives.

Hopefully I will get the right battery the first time though lol. I told them in the Paypal message box that they to double check that they send the one for the Galaxy S2 sgh-i777.
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
I also have the full version right now.. I am trying to discharge battery to connect it to charge it.. but still have 22% :[ now it takes time to discharge lol.:D

Edit- do not know if app is crazy or what but it says 2303mAh now O.o..
[AT&T Samsung Galaxy S II SGH-I777] spexwood:
Unless someone objects, I can still give my readings. It would be good to have two reports using two separate, but similar batteries, instead of only one report ;)

To QUICKLY drain your battery, first turn Juice Defender COMPLETELY off (I see the icon in the status bar LOL). Also turn on your GPS, Wifi, and Bluetooth as well. Also set your brightness to 100% (not automatic) and set the screen timeout to NEVER. All of this will suck the power from your phone pretty dang fast!

To use even more power, get some app that will allow you to turn on the flashlight that is next to the rear camera. Leaving this on as well as everything I listed above will drain the battery even faster.

I just drained my battery in order to get a reading of my current Hyperion 1800mAh battery in order to get a reading to compare to the 2300mAh one once it comes. (Obviously, I want to use the bigger capacity). I went from having 86% (after normal use since taking it off the charger around 4pm) to the phone turning off automatically (DEAD) in about an hour.

As for your 2303mAh reading, I dont think you have anything to worry about. Battery Monitor Widget (from now on, I am calling it BMW) usually will say something like "2303mAh +/-4%" The percentage will get smaller and smaller the more accurate the reading becomes.

The percentage is the gap of error. So, in the case "2303mAh +/-4%", 4% of 2303mAh is 92.12mAh. So, the current reading is actually "2303mAh +/-92.12mAh" or somewhere between 2210.88mAh and 2392.12mAh.

Since the battery is claiming to have 2300mAh, the app seems to be giving you a pretty accurate estimate (referring to my example). Now, if the percentage was something like 50%, then the reading is not too accurate right now.

But given a 2303mAh reading, despite the % not being given by you, is kind of exciting! The battery might just be legitimate, or very darn near it!

EDIT:

ALSO!

Dont forget that you need to be charging your phone while it is booted up once you kill the battery!

So, once the phone dies, charge it just enough so that the "!" disappears. Then, unplug the phone from the charger, boot it up, then plug the charger back in and let it completely charge. Once it hits 100%, leave it on the charger for around 10 to 30 minutes longer. A new battery MAY (as you experienced before) say that it is at 100%, but as soon as you unplug the charger, the percentage may drop down instantly. This is simply because the battery is not broken in yet and also happened with my Hyperion (not anymore though).
[AT&T Samsung Galaxy S II SGH-I777] AntwanL:
All of these positive reviews are making me super excited for mine lol
[AT&T Samsung Galaxy S II SGH-I777] pham818:
hi naturo, are you done with Calibrating the battery? can you give me a screenshot of the battery/display time after a day of heavy/decent use?
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
My nickname is najuto. I can not say I have finished with the calibration cycle,still says 100% remove and get instant drop of percentage but I will try it all day and see how much it lasts. :D One thing I have notice after every charge the battery seems to work better.
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
Wow :eek: I like it. Good information, thank you for that. I get stupid some times maybee because of cpu overclock lol (joke).

I am not 100% sure if the app is legit or not to trust its readings but in the calibration tab

where it says measured :

2782mAh +/- 37%

:eek:

between 1753 - 3811... Not that accurate enough...
[AT&T Samsung Galaxy S II SGH-I777] dc41:
I took the plunge a few days ago and ordered the battery. For the money you can't go wrong. Even if it's just a test. If it can get me through the whole day with medium usage I'll be all smiles!

Thanks to OP for the find!
[AT&T Samsung Galaxy S II SGH-I777] afrojoc:
I just bought one myself. very cheap O.o
[AT&T Samsung Galaxy S II SGH-I777] Johosophat:
Okay okay, I took the plunge and bought it too! I hope it turns out to be a really good battery for all of us!
[AT&T Samsung Galaxy S II SGH-I777] Dimatchka:
Comparison

Now all we need is a comparison of this battery to the Korean 2000mAh extended battery and if it out-performs that one then im 100% buying this one.
[AT&T Samsung Galaxy S II SGH-I777] \/icious:
If you guys put up some 6hr screen time shots I'm sold.
[AT&T Samsung Galaxy S II SGH-I777] EhHowzit808:
Looks like majority of their orders will be from us...LOL.
[AT&T Samsung Galaxy S II SGH-I777] Johosophat:
I was thinking the exact same thing, with them wondering where all these sales are coming from now hahaha
[AT&T Samsung Galaxy S II SGH-I777] bkeaver:
So anyone want show any real results yet? I'm interested if this is lasting longer as well
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
Do you guys turn gps off for better battery life?I always have gps on for weather app.

37% of battery left.

13h 22m 3s on battery.

Display 34%

Voice calls 19%

Cell standby 18%

Services that cost you money 15%

Android Os 9%

Phone idle 4%

Go sms pro 2%..

Thats what I got till now... used phone all day with no problem at all.

Edit- 15 hours :D

Right now I am trying to discharge it completely... screen full all wireless enabled, flashlight on,so that battery discharges completely and try it out again.
[AT&T Samsung Galaxy S II SGH-I777] chase10784:
What is your screen on time for this battery run? In my opinion screen on time is the biggest determining factor of whether a battery is good or not.
[AT&T Samsung Galaxy S II SGH-I777] AntwanL:
Can you send a screen shot while in the graph screen? Where it shows each screen on instance and all.
[AT&T Samsung Galaxy S II SGH-I777] Dimatchka:
meh

This does not outperform my stock battery, based on the results above... Im thinking about going with the korean samsung 2000mAh battery when the time comes, this baby still gets me +20 hrs daily use

that 25 on top right is my battery indicator :cool:

http://imgur.com/uxK7Y

http://imgur.com/vRhxt

I get up to go to work in the hospital at 6 am, come home at 9pm, still have some left over battery. I text my gf a descent amount and play some games on the train.. So this is with moderate use. On heavy days like today i was able to get 10 hrs with 6 hrs of screen activity. Heavy use. Mind you this is the 1650mAh stock samsung battery.

I'm running illusion rom with the latest syah kernel. Recently started to mess around with voltages, should give me an even better performance in terms of battery life.
[AT&T Samsung Galaxy S II SGH-I777] ankaka:
slimmer, lighter cells contributes to the weight reduction and downsizing of portable products,

Bluegeta li-ion battery is ultra-slim and ultra-light than any other batteries by using high

molecular substances and also provides.
[AT&T Samsung Galaxy S II SGH-I777] Dimatchka:
Ok and?
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
2h21m31s display.
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
I was lucky one time to get shockstock with some setting I messed with that right now I do not remember.. and almoust always had 1 day 2 hours aprox and like 20 % remaining.. But when I changed to Illusion rom my battery performance droped a lot! I need to mess around with settings,kernels and voltages to get it right... I am using the illusion rom with Entrophys DD latest kernel.

Edit- Will be trying it out with Illusion plus siyah kernel and some init.doh scripts.
[AT&T Samsung Galaxy S II SGH-I777] bkeaver:
I'm not seeing anything that is spectacular so far by what people are posting. But maybe its just too soon idk
[AT&T Samsung Galaxy S II SGH-I777] spexwood:
you do know that the Korean 2000mAh battery doesn't work right in our phone... right?

To charge it, you have to take the battery out and charge it with an external wall charger because if you charge the phone with the battery in it, the phone will enter a never ending boot loop (meaning that the phone will constantly start up and then immediately shut down again).

MAJOR EDIT: Nevermind, I just found and reread the forum where I got my information from. I guess the battery DOES work, but the extended back cover doesnt. Sorry about that.

---------- Post added at 02:22 AM ---------- Previous post was at 02:11 AM ----------

GPS, Wifi, and Bluetooth all use a little more battery juice. The recommended practice is to fisable these whenever they are not being used. I don't know how much battery turning GPS off will save exactly, but it will help a bit since it won't use the power needed to search for satellites, etc.

Most weather apps have a zipcode option. It may be best to just use that and disable GPS altogether, unless you are constantly traveling between different cities with dramatically different weather patterns. I mean, if you are just going between neighboring cities, then chances are, the weather will be fairly similar... maybe one will be 2 degrees cooler or one will be raining, while the other will be raining soon, but that is just about it.

...

...

...

Of course, I live in North Texas, so this is coming from my weather experience here lol. All that which I said above is typical here, lol.

---------- Post added at 02:41 AM ---------- Previous post was at 02:22 AM ----------

Also, Im going to post some screenies of battery tests that I am performing out of curiosity. I have not received the Bluegeta battery yet, but once I do, I can post my findings a about a week later (have to break the battery in or else it will drain too fast).

My tests will be the Stock 1650mAh Samsung battery VS the Hyperion 1800mAh battery VS the Bluegeta 2300mAh battery.

The tests will be performed using as close to a consistent battery drain as possible. The batteries will be sure to be charged up to 100% and then charged for at LEAST 30 minutes more once the 100% mark is reached. Then, Bluetooth, Wifi, and GPS will be turned on, Screen brightness set to minimum (not automatic), and screen set to stay on at all times (meaning that the screen will NEVER turn off). I will not send texts or make any calls, but I cannot help it if someone texts or calls me. Any of these, I will note in the results.

I will take screenies of battery usage at the 50% and 10% marks. I will stop the tests at 10% since once the phone shuts off, I cannot get any more battery usage data (screenies either).

Once I get the Bluegeta battery, I will actually have 3 batteries for my SGS2 -_-

I want to know which, out of the three, are best.
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
guys i am a little disapointed.. Battery works a little more than stock... It appear to be between 1800-1900mah... Not sure but bmw does not give accurate readings.. It may say it is 2300 but it is a value you set to calibrate it. It instead says something like 2782 +/- 37%

Edit- Estimated 1753mah... I currently do not trust Bmw.. it is inaccurate.

Sent from my Samsung Galaxy Sgh-i777 :)
[AT&T Samsung Galaxy S II SGH-I777] spexwood:
Honestly... I am thinking that BMW is screwed up now too :(

My 1800mAh battery is being read as being in the 1000mAh range, while a couple of months ago, the app was saying that it was around 1800mAh.

Once I get my tests done, we can AT LEAST see if the battery life is indeed longer than stock. It wont give up a definitive answer as to whether or not it is actually 2300mAh though.
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
Something is wrong. :(
[AT&T Samsung Galaxy S II SGH-I777] EhHowzit808:
As the saying goes, "you get what you paid for". But hey, it is a lot cheaper than buying an original stock battery. I think?
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
bluegeta $9, stock aprox. US $21.99....
[AT&T Samsung Galaxy S II SGH-I777] AntwanL:
Stock battery

Not sure how much I trust that app/widget.
[AT&T Samsung Galaxy S II SGH-I777] chase10784:
Very interesting first test results. songs like something isn't very calibrated very well if it takes 4.5 hours to get to 50% then only 90 min to hit 10%. I'm interested to see if stock battery drains similarly.
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
I AGREE. something is not right. It seems weird to drain faster when it reached 50%.

Sent from my Samsung Galaxy Sgh-i777 :)
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
Thank you very much, we want to see results this test will give us a great review out of the batterys.

Edit- I searched bluegeta on google to found out more about them and I found that they also sell a 1450mAh battery for I9000 it would be a shame if they sell the same battery saying that is 2300mAh.

Sent from my Samsung Galaxy Sgh-i777 :)

Edit- Bmw new estimate value 1954 mAh. 2570mAh +/-24%
[AT&T Samsung Galaxy S II SGH-I777] CyberManiaK:
Najuto... Uhmm your estimated by Bmw is kinda weird.. Cuz on my batteries 1. Stock (1650 mah) and 1 hyperion 3500 mah is around 3% of, the 1650 is reported as 18XX (dont have the exact numbers right now) , and the 3500 is like 36XX

And Doing some tests on my batteries. Here are my results.

For the 3500, the GPS ON time was using Navigation (Full brightness)

http://xdaforums.com/showpost.php?p=21827558&postcount=195

And here is for the stock 1650

http://xdaforums.com/showpost.php?p=21827558&postcount=195
[AT&T Samsung Galaxy S II SGH-I777] spexwood:
For the record, according to Entropy512, (based on my understanding of his highly knowledgeable explanation in a seperate topic I made some short time ago) this phone has a seperate chip that takes care of power management. I guess this chip is supposed to automatically manage power without having to configure the phone for the battery. All I can say confidently though, is that he told me that you don't need to do any configuring.

Also, I am still performing Test 2... and it isn't looking too good for my Hyperion battery :(
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
We do not lose anything by testing instead we gain knowledge ;)

edit- new values 2466mAh +/- 20%.

1973mah near 2000mAh.

Will keep doing charge cycles until I get smaller %.
[AT&T Samsung Galaxy S II SGH-I777] Dimatchka:
Be careful! Dont Over do it

Charging (or discharging) at too high a rate will cause the battery to fail because it increases battery temperature, and because it encourages the growth of dendritic Lithium metal which will short circuit the cathode and anode (increasing temperature). Overcharging and discharging can also cause failures, but most Li-Ion batteries have an internal chip to prevent these situations.

Initially a failing battery will "puff" due to gas generation from the breakdown of electrolyte, but the cells are vented to prevent them from exploding. If the failure is allowed to progress (for instance if the battery is left on charge at too high a rate), the battery will ultimately achieve a condition of "a highly energetic exothermic chemical reaction". Temperatures well above 300ºC are possible - and you can't put it out since it's not combustion, it's a chemical reaction.

It's hot, and it generates a lot of smoke, and it'll set things nearby on fire, but it doesn't actually "explode".
[AT&T Samsung Galaxy S II SGH-I777] spexwood:
I have completed Test #2

(link back to my post: http://xdaforums.com/showpost.php?p=22442767&postcount=89)

The stock battery lasted about 2x as long as the supposedly bigger Hyperion... and remember that this is with the screen on constantly and many other battery-draining things running!!!!

Because of the stock battery's MUCH longer life and the fact that the Hyperion battery had super rapid drain after the 50% mark, I am starting to suspect that my Hyperion battery is defective. I will test this theory tomorrow because when I bought the Hyperion, I bought a two-pack. So, I have another Hyperion 1800mAh that is the exact same model as the one I tested yesterday. I will test that one tomorrow and if results are similar... well, then we all know that the Hyperion 1800mAh is pure crap. (The one I tested yesterday is already going into the trash now LOL).

Also, I am starting to get a little worried about the Bluegeta now because if tomorrow's test proves the Hyperion to be a fake, then the chances that the Bluegeta is also fake increases!!!
[AT&T Samsung Galaxy S II SGH-I777] CyberManiaK:
Interesting results you are having..
[AT&T Samsung Galaxy S II SGH-I777] Que1999:
What about the 1800mah Mugen? Any way to get that fella in on this testing?... Just so we can find out once and for all what's the best stock-sized battery..

-=-GS2[I777]-=-
[AT&T Samsung Galaxy S II SGH-I777] Johosophat:
Am I the only one thinking of a Blue Vegeta when you read bluegeta over and over and over again?
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
Lol me 2. Lets keep testing to see if there is really a stock size battery better than stock samsung brand.

Sent from my Samsung Galaxy Sgh-i777 :)
[AT&T Samsung Galaxy S II SGH-I777] spexwood:
I would be happy to do the test, but I do not have the money to buy the Mugen.

---------- Post added at 12:43 AM ---------- Previous post was at 12:41 AM ----------

I posted the results to the second Hyperion 1800mAh

http://xdaforums.com/showpost.php?p=22442767&postcount=89

I think the first one was definitely broken, but... it isnt like the second one lasted TOO much longer. So far, based on my testing, the Sammy seems to actually be the best! (go fig)

I still have not received my Bluegeta yet, but it should be soon.
[AT&T Samsung Galaxy S II SGH-I777] Najuto9tail:
I must thank you for doing this awesome test. I currently have no time at all for doing this, if so I would of done the same.

Today used phone for 10h3m12s.

I set display for full brightness,turn on gps and stuff to drain it. It seems it is getting a better charge after discharging completely and giving it a full charge of 10 hours at night. I hope to have some time to spend on this test and when I do I will post results.
[AT&T Samsung Galaxy S II SGH-I777] spexwood:
You are welcome. I wanted to know this info anyways... and as we all found out, the Hyperion batteries are pretty lame.

I would say that 10 hours is pretty good for normal usage! I will still do my test once I get mine though (after breaking it in). Its time can then be compared to the other batteries and all would have been tested under the same conditions.
[AT&T Samsung Galaxy S II SGH-I777] Johosophat:
So you have tested your Bluegeta and been unimpressed thus far? That's a shame, I guess when I get it I will have to see where it stands as well.

Another random question, you are running your SGS 2 on T-Mo? Doesn't no 3G suck??