yashsingh1/xdaforums huggingface dataset:
[Samsung Epic 4G Touch] kchannel9:
There used to be one on Amazon, but it's been out of stock since the beginning of this thread.

I just ordered the 3800mah Hyperion (which sucks IMO) for the white back. Fits the Qcell great. But I don't recommend the Hyperion battery.

sent from my GS2/ET4G (Vanilla Rootbox 3.9.1 w/ ExitOnly's Tweaks) on Xparent Tapatalk2
[Samsung Epic 4G Touch] itzkpanda:
Mm, that's a shame. :(

Also, would you (or anyone else that sees this) know the difference in performance between this battery and the one made by Gorilla Gadgets?
[Samsung Epic 4G Touch] kchannel9:
I only own a 4100mah Qcell, a 3800mah Hyperion, and 2 stock Samsung batteries. No experience with the Gorilla Gadgets, but my general perception is people seemed to think it was good...idk

sent from my GS2/ET4G (Vanilla Rootbox 3.9.1 w/ ExitOnly's Tweaks) on Xparent Tapatalk2
[Samsung Epic 4G Touch] itzkpanda:
Alright. I guess I'll try the QCell then. Thanks :)
[Samsung Epic 4G Touch] kchannel9:
You won't regret it, it's a really great battery. Be sure to follow the directions when you first get it (to break it in correctly) and it will work great.

sent from my GS2/ET4G (Vanilla Rootbox 3.9.1 w/ Lightning Zap kernel 1.1 & Seeder) on Xparent Tapatalk2
[Samsung Epic 4G Touch] hrffd:
I'd suggest doing a complete wipe of your phone too, to try to get the most accurate readings from the start
[Samsung Epic 4G Touch] jonapunk:
The first charge cycle mine stayed at one percent almost 12 hours before it died. So wiping may work to help this not happen I'm just not sure
[Samsung Epic 4G Touch] Bear Knuckles:
After 5h 7m 12s. This is my qcell after using it for a while now.
[Samsung Epic 4G Touch] kchannel9:
What ROM are you on?

sent from my GS2/ET4G (Vanilla Rootbox 3.9.1 w/ Lightning Zap kernel 1.1 & Seeder) on Xparent Tapatalk2
[Samsung Epic 4G Touch] MajorTankz:
How did you discharge it? Did you recharge after the phone turned off or did you turn it back on? Did you wipe battery stats? And did you actually let it discharge all the way to 0 in android?
[Samsung Epic 4G Touch] hrffd:
Since qcell Is $30 and said to be the best I guess I'll be ordering it
[Samsung Epic 4G Touch] Mightycaptain:
I've been very happy with this battery. I have not been able to wear it out in 24 hours. Hours of screen time. All radios on. Push notifications. Auto screen. Also bought a trexcell cover.you will have to modify this case for the battery charger to fit without taking of the case. It burns thru the first 20%. After that it gets more stubborn. The last 20 will go a long time.
[Samsung Epic 4G Touch] hrffd:
I'll be doing a full wipe when I get it. What ROM are you on?
[Samsung Epic 4G Touch] Mightycaptain:
Most of my experience on this battery is on GB28. Have had liquid smooth on the last 2 days. Early on it looks like it will be similar to stock. Other than auto screen I have had no other battery savor options. Also spend about 15-20% of everyday searching for signal. Work deep in concrete and brick buildings. I have been very happy with this battery. Follow the break in instructions. After that about 4.5 hours to fill charge. Though it fits do better if you leave it on a few extra hours. Trickling charge I guess.
[Samsung Epic 4G Touch] Mightycaptain:
See the attached screen shot from today's use. Using ktempleton's liquid smooth rom.
[Samsung Epic 4G Touch] Mightycaptain:
Again no power saver options. Got about 75 emails today. 30 or so text messages. It got a higher than my average work out today.
[Samsung Epic 4G Touch] hrffd:
The only things I use are DS battery saver pro and greenify. I was going to switch to Dirty Unicorn because I love customizability, but people are saying it makes data worse and the Airforce base I'm on gets horrible reception so I might go back to jellyverse. Hopefully getting my battery tomorrow.
[Samsung Epic 4G Touch] Mightycaptain:
As far as data goes I flashed the fl24 modem, data was horrible, on 3 different ROMs worse than the gb28 modem. Flashed el29 modem and the download speeds tripled. And the signal is more consistent and generally stronger . You might have different results, according to the info I've seen it varies from rom to rom and phone to phone.
[Samsung Epic 4G Touch] hrffd:
This is my second round on my battery, left it charging all night started when I woke up. I expected more from it to be honest, but oh well. Constant data, some force roaming,a little Wi-Fi tether maybe for about 20 mins, constant Facebook/texting, some videos and a lot of surfing, etc. I guess heavy usage. I guess you'd have to tell me if it's good or not.

Sent from Sprint Samsung Epic 4G Touch
[Samsung Epic 4G Touch] Mightycaptain:
It will get better. If you follow the break in all the way. Mine got better each day. I attached screen shots from today. I'm running dirty unicorn by ktempleton today. 1st 24hrs back on the ROM. So I've been restoring backups tweaking etc... . Had some gps issues so I had gps trying to find a lock for an hour of this(resolved) . Auto screen. What was yours set to?
[Samsung Epic 4G Touch] hrffd:
I always have mine on lowest unless I can't read it.

Sent from Sprint Samsung Epic 4G Touch
[Samsung Epic 4G Touch] Mightycaptain:
Another little oddity I forgot to mention. About 1 and half ago I was sitting at 16%, then put the phone down. Picked it up and I'm at 23%.

It does that a lot when the battery gets lower, like the OS had trouble reading it accurately. Give it a test and it gets calibrated a little closer.
[Samsung Epic 4G Touch] Mightycaptain:
Tried to run it to empty. You can see the battery jump back up a few times towards the end. Have had over 8hrs screen time when I wasn't searching for signal so much. Several reboots in this mix today. Flashed another kernel around 17%. Usually not advisable I know but that is closer to 50% on a stock battery. Dirty Unicorn ROM. Full haptic, vibrate(on high) notifications and sound for all applicable apps. Auto screen.

If your screen is dimmed down on low , I would think you could do even better once the battery is broken in.
[Samsung Epic 4G Touch] hrffd:
Very nice. My charger port is a little loose so my charger kept falling out so I didn't charge it much past 100 last time but I'm on my 3rd cycle at the moment but I'll post results once it's at 1.

EDIT: I seem to have the media service bug, I'm trying different steps to fix it such as removing my external SD and making all of my folders opt out from media scanning, God I hate this bug.

Sent from Sprint Samsung Epic 4G Touch
[Samsung Epic 4G Touch] MajorTankz:
I'm still getting no luck getting my Hyperion conditioned to perform well. I can hardly get past 2.5 hours of screen on time.

I had a good cycle the other day with 2 hours of screen on time at 50% by the end of the day, bty I plugged it in instead of fully discharging e without even thinking about it.

I'm mostly at 50% brightness all day.
[Samsung Epic 4G Touch] kchannel9:
Yeah the Hyperion sucks. I have the Qcell too and it actually is an extended battery, not a pretended battery.

sent from my GS2/ET4G (Vanilla Rootbox 3.9.1 w/ Lightning Zap kernel phase 2 & Seeder) on Xparent Tapatalk2
[Samsung Epic 4G Touch] hrffd:
Ok here's my third cycle, didn't charge long past 100% and I left it on playing Pandora over night while sleeping. I keep my brightness on lowest unless outside then it's usually brightest. But a lot of Facebook and surfing, data was barely turned off. Constant texting. Media scanner was there probably from my Pandora. Got to 4 battery and it started going back up, happened for a couple hours so this wasn't the final, add about 2 hours.

Sent from Sprint Samsung Epic 4G Touch
[Samsung Epic 4G Touch] MajorTankz:
So this was a fluke then?
[Samsung Epic 4G Touch] kchannel9:
I mean I can only speak for my own experience with 2 ET4Gs, I don't know about yours, and your exact setup, I thought it was a given that 'YMMV'. I was just saying I have the Hyperion and the Qcell, and on both phones the Qcell always wins hands down in my experience. :thumbup:

sent from my GS2/ET4G (Vanilla Rootbox 3.9.1 w/ Lightning Zap kernel phase 2 & Seeder) on Xparent Tapatalk2
[Samsung Epic 4G Touch] MajorTankz:
Yeah of course I'm not going to get the exact same resutlts, but I didn't think I would be 7 hours off. I was really thinking I might be able to squeeze out 6 hours of screen on time with 3800mah.
[Samsung Epic 4G Touch] fomokole:
I like more power, so that can charge faster.
[Samsung Epic 4G Touch] FuMMoD:
I have 2x 3800s chinese generics I have been using for almost a year now. Is there anyway I can recalibrate them or is it too late to do that? I would get like 10 hrs with my heavy usage with them which wasn't really satisfying. Should i just purchase a new Qcell and calibrate it properly? Thanks

Edit : Did the spin test and they're all bulged. After doing a battery test i found they hold about a 7 hour charge with 2 hours of screen time. About the same as my OEM battery lol. Ended up ordering the QCell and it should be here by tomorrow. Using the OEM battery till then since these cheap generics are pretty much done.
[Samsung Epic 4G Touch] FuMMoD:
First charge on QCell
[Samsung Epic 4G Touch] tzzhc4:
What software are you using to recalibrate

What app are you using to calibrate the new battery?
[Samsung Epic 4G Touch] FuMMoD:
Battery Calibration. I charge it to it's max capacity and after it's on the charger for 2 hours after the 100% I hit the Battery calibration button on the app. Then i disconnect the charger cable and use the phone. I'm on my second charge right now and I forgot to calibrate it before i disconnected it :(. I noticed it after like 30 minutes and it was too late then to calibrate it. Hopefully it doesn't mess with it too much. I also used battery monitor app.
[Samsung Epic 4G Touch] kchannel9:
You should follow the directions that came with the battery.

sent from my GS2/ET4G (AOKP/CM Rootbox 4.1, 20130627 build, with Lightning Zap kernel ver. 4) on Xparent Tapatalk2
[Samsung Epic 4G Touch] FuMMoD:
That's exactly what the card from QCell says to do for charging. Charge to full 100% then leave an extra 2-3 hours on charger to ensure full capacity. The calibration apps only remove the battery stats so it's a more accurate reading.
[Samsung Epic 4G Touch] billfog:
Almost a year later and my Qcell still works as good as new.
[Samsung Epic 4G Touch] kchannel9:
I was referring to this ↓↓↓

sent from my GS2/ET4G (AOKP/CM Rootbox 4.1, 20130627 build, with Lightning Zap kernel ver. 4) on Xparent Tapatalk2
[Samsung Epic 4G Touch] FuMMoD:
I don't understand what you're saying. You just quoted yourself saying the exact same thing I said lol. I'm following the charging rules and they say leave on charger 2-3 hours after 100%.
[Samsung Epic 4G Touch] kchannel9:
The crazy 6 time recharge discharge crap, to be more specific, sorry

sent from my GS2/ET4G (AOKP/CM Rootbox 4.1, 20130627 build, with Lightning Zap kernel ver. 4) on Xparent Tapatalk2
[Samsung Epic 4G Touch] FuMMoD:
Oh well I'm doing what QCell says about discharge to 0 then recharge to 100% 6 times. I'm 2 more charges left till I hit the 6th cycle. I still can not get 10 hours screen on time though. How did you manage to do that?
[Samsung Epic 4G Touch] billfog:
Ok, I am going to go out on a limb here and probably get criticized but QCell gave you improper instructions. Just Google proper care of lithium ion batteries and you will see why they are faulty and shouldn't be followed. I ignored Qcell's faulty instructions and all the old NImH old guard people instructions and followed what I read about lithium ion batteries. fully or nearly discharging the battery is bad for it and overheating the battery is bad for it.

I don't and never did condition this battery. I don't always but try not to run it below 10% and I don't let it run over 104 degrees. I don't use battery calibrators or anything else. All I do is use the battery and almost a year later the darn thing works like new.

Don't take my word for it, just Google "proper care of lithium ion batteries" and use common sense. Dont buy into all these old procedures and habits people developed in the Nimh days...

I have fired many people over the years because when asked why they were doing something in a particular way they answered " because we always did it that way" They don't know why they do it other than they always did it...

Just Google it... it worked for me...

Let the tirade begin...
[Samsung Epic 4G Touch] FuMMoD:
I know exactly how lithium ion batteries work. These instructions apparently work if you read all the pages of this thread like I have. I literally read this entire thread 6 times to make sure it was the correct way to calibrate the battery because of the lithium battery issue. They also state once you calibrate it with the 6 discharges and recharges then you must not let it drain below 20% to ensure it's longevity which falls under proper use of lithium batteries. I tell people that all the time as well to never let their phones die out completely and charge it whenever they get a chance because if not their battery will fail them. Strange methods i know but it really maximizes the battery capacity if you observe people's battery usage screen shots. I have also been keeping screen shots of my battery usage and it's been increasing after every full charge. I'm excited to when i'm finally done with calibrating it and don't have to let it die out anymore.
[Samsung Epic 4G Touch] FuMMoD:
Last charge cycle and the battery acted pretty weird.
[Samsung Epic 4G Touch] Jared King:
Yeah!! My Cell has started to go out after 5 months my phone just has been starting to really overheat those last 2 months(have noooo idea why) So that's why Cell only lasted that long. I have my Phone clocked at 800mHz max(usually doesnt do this) and I'm only getting 16hrs/day. So that's why Cell only lasted that long. I have Hyperbion now. I don't really like hyperbion it's not as good as Qcell. I plan on ordering another Qcell after I earn some more money again(I'm 15).
[Samsung Epic 4G Touch] JayDroid412:
Based on these stats I'd say how the EFF do you even have 10 hours of screen on time.... Put your phone down and go outside. And yea its a qcell 4100 mah
[Samsung Epic 4G Touch] MiguelHogue:
Had the battery for a year now..

Probably could have got more.. Loaded it up at 93 percent

Sent from my SPH-D710
[Samsung Epic 4G Touch] JayDroid412:
How?

UBreakiFix Pittsburgh
[Samsung Epic 4G Touch] FuMMoD:
That's awesome battery life. What battery apps do you use? DS Battery I'm guessing to make it go into such a good idle state.
[Samsung Epic 4G Touch] MiguelHogue:
not sure :D I'm running VeNuM ice by [MENTION=4302068]sleshepic[/MENTION] that's about it paired with ds battery saver

That's correct (just ds battery saver) helps a lot for when I'm areas with terrible coverage

-TeaM VeNuM Like A Boss :flipoff2:

-SoA: Son's of Android™
[Samsung Epic 4G Touch] FuMMoD:
What settings are you running on DS?

Sent from Tapatalk on my S2.
[Samsung Epic 4G Touch] MiguelHogue:
I just ticked the one that says slumberer

-TeaM VeNuM Like A Boss :flipoff2:

-SoA: Son's of Android™
[Samsung Epic 4G Touch] kchannel9:
What ROM as well... I've never seen anything like that before

sent from my GS2/ET4G (AOKP/CM Rootbox 3.9.1 20130613) on Xparent Tapatalk2
[Samsung Epic 4G Touch] FuMMoD:
He said venum ice. DS Battery is really what makes the difference though.
[Samsung Epic 4G Touch] kchannel9:
Thanks, missed that. The only thing keeping me from using DS is that to brr effective it kills wifi, and I only use Google Voice / Sparephone for my phone number, so if wifi is off I can't get calls

sent from my GS2/ET4G (AOKP/CM Rootbox 3.9.1 20130613) on Xparent Tapatalk2
[Samsung Epic 4G Touch] FuMMoD:
You can try checking out comadose tweaks in the android development forum. I'm not sure if it works on Aosp based roms though.
[Samsung Epic 4G Touch] JayDroid412:
Can't you do custom and allow WiFi to remain constant?
[Samsung Epic 4G Touch] beezie42:
Yup sure can. Just have to use custom and have it not manage wifi.
[Samsung Epic 4G Touch] shezzy69:
Just ordered this battery.. what is the best method to break it in? Full discharge ( to 0% ) then full charge to 100% multiple times?
[Samsung Epic 4G Touch] gamepro602:
they also recommend doing this 6 times and then after that charge it around 15-20%~ battery left
[Samsung Epic 4G Touch] shezzy69:
Cool..yeah after reading the thread it seems that's the general consensus.. So what is your battery life like? I'm seeing some people with time on battery about the same as a stock battery and then I see people with like 2+ days.. hope I got one of the good ones!!
[Samsung Epic 4G Touch] JayDroid412:
Depends on ROM and how you use your device. I recommend DS battery saver and greenify.
[Samsung Epic 4G Touch] FuMMoD:
People that barely use their phones can get days off it. I'm a very heavy user and here's a picture of 100 brightness with auto sync on with data on the whole time. Btw the break in instructions are in this thread just search. You will also get a card with your purchase that have the instructions. Remember how you use your phone affects your battery life. I maxed out the settings because I was breaking in the battery and taking pictures of each charge cycle.
[Samsung Epic 4G Touch] shezzy69:
thanks for your feedback.. with 7 hours screen time that's awesome.. right now I'm getting like 1.5-2 with my 2520mah china extended (non-fat) battery..

I use a lot of tweaks and settings for battery now.. 200mhz min - 800mhz max - brightness to lowest - greenify - auto-kill task when screen goes off - juice defender - undervolt - peq/sio gov/scheduler .. So I'm hoping to get really good results along with this . I'll remember to take screen shots during the beginning cycles (6) and the after results..thanks!!
[Samsung Epic 4G Touch] FuMMoD:
I'm never satisfied with battery life since i use it so much lol, but it sure beats 2 and 1/2 hours with stock battery I get.
[Samsung Epic 4G Touch] FuMMoD:
I still haven't gotten 9 hours of screen on time lol. How the heck did you manage that?
[Samsung Epic 4G Touch] thejerkk:
does anyone know where to get a QCell battery? their website doesnt have any and amazon is out and no idea when more will be in stock.

theres another high mAH battery on amazon, but im skeptical due to the feedback...
[Samsung Epic 4G Touch] FuMMoD:
There should still be some on Amazon, though they have she battery covers. I'll do a quick search now. On eBay there's none for sure.
[Samsung Epic 4G Touch] thejerkk:
please post that link if you find any on amazon, i cant find any searching by my model number or carrier (d710 / sprint or boost)
[Samsung Epic 4G Touch] FuMMoD:
Have you tried going through this threads pages? There's tons of links posted.
[Samsung Epic 4G Touch] thejerkk:
every link is dead or leads to the same place with the same 'unknown when this product will be available'
[Samsung Epic 4G Touch] FuMMoD:
Oh snap you might be out of luck then. I'm checking them out and It looks like the 4100s are sold out.
[Samsung Epic 4G Touch] thejerkk:
yeah thats what i figured. i put it on auto notify, so hopefully theyll be in stock soon :X
[Samsung Epic 4G Touch] kchannel9:
Yeah your next best bet is the Hyperion, which isn't too bad, I have both.

sent from my GS2/ET4G (AOKP/CM Rootbox 3.9.1 20130613) on Xparent Tapatalk2
[Samsung Epic 4G Touch] electrobyte:
Is the Hyperion the same size as the stock battery, and did you notice a difference?

Would the Seidio BACY32SSEPT-BK Innocell 3200mAh be a better option than the Hyperion?

Sorry if this has already been asked. I am in need of a new battery ASAP and want to make sure I get the best bang for buck.
[Samsung Epic 4G Touch] FuMMoD:
Best I've gotten with CM10.1 the gentlemen's Rom.
[Samsung Epic 4G Touch] FuMMoD:
I have a QCell i don't need anymore if anyone wants to buy it off me just PM me. It comes with the black extended battery cover.
[Samsung Epic 4G Touch] d12unk13astard:
Update..

Three days of charge cycles and battery life is improving with results like these:
[Samsung Epic 4G Touch] jonapunk:
I am excited to. Get. Mine it should be here tomorrow
[Samsung Epic 4G Touch] mrcrptguy:
This is on a cheap eBay battery.
[Samsung Epic 4G Touch] jonapunk:
Link to the battery or some information would be nice. I also don't know how much cheaper of a battery you can get
[Samsung Epic 4G Touch] bos0407:
What about protection?

Anybody found a case that fits over this monster? Will the trexcell tpu extended case for their 3800 mah battery fit over this?
[Samsung Epic 4G Touch] mrcrptguy:
http://pages.ebay.com/link/?nav=item.view&id=120932132423
[Samsung Epic 4G Touch] d12unk13astard:
just keeps getting better.. I'm gonna order another with the black back cover, cuz the white on black just looks funky.
[Samsung Epic 4G Touch] renesdone:
yes it does fit ...im using it right now
[Samsung Epic 4G Touch] DCRocks:
One difference I noticed is the display on time was 44% & 50% for the other battery screen shots, where your is around 20%

As the screen seems to be one of the most major drains, this difference matters a lot.
[Samsung Epic 4G Touch] mrcrptguy:
The 20% next to the display doesn't represent the on time, it represents the amount of battery used by the display. I keep my screen at a lower level of brightness to help conserve battery. The "Screen On" time was much more than 20% as I am always using my phone.
[Samsung Epic 4G Touch] bos0407:
extended case

Thanks, I thought the trexcell extended case would fit over it. I went ahead and cut the back out of my tpu case like d12unk13bastard did. It doesn't look all that bad with a black case and cover. Tpu case was only $3 so I didn't care if I ruined it in the process. I just stretched the cover to make it fit initially then traced the outline of the bulge and cut it out with scissors, 15 mins no sweat.
[Samsung Epic 4G Touch] jonapunk:
I finally got mine today cam about sixty percent charged. Used gps navigation for three hours and still at fifty percent if this keeps up I'm going to be very happy with this battery on my oem battery I'd get about 4 to five hours from full to time turned off using gps
[Samsung Epic 4G Touch] jonapunk:
An update..... So I killed the battery last night took about 13 hours. Charged it with the phone off this morning when I woke up had my faithful blue light and turned the phone on while still plugged in to the charger the light turned red and took two hours to go blue again. Will do screen shot tonight when phone goes dead to give you all a performance update
[Samsung Epic 4G Touch] donsh00tmesanta:
That is not very impressive
[Samsung Epic 4G Touch] bos0407:
Good buy!
[Samsung Epic 4G Touch] jonapunk:
It is when you are trying to kill the battery for conditioning the battery
[Samsung Epic 4G Touch] jonapunk:
This will not seem so impressive but I used navigation today for about four and a half hours and watched three episodes of star trek enterprise... My oem battery could never of done this
[Samsung Epic 4G Touch] MiguelHogue:
Thinking about buying a Qcell for my phone.. Need the extra juice for school and trips... How has it been holdin up over time?.. I heard the trexcells are good at first but get terrible over time
[Samsung Epic 4G Touch] jonapunk:
Its only been a couple of days but it keeps getting better for me
[Samsung Epic 4G Touch] deedscreen:
I own and love this battery. I will never buy another extended battery except QCell!

WiMax®'d away from my Samsung® Galaxy® S™II Epic™ 4G Touch™ SPH-D710 running CyanogenMod9™ Alpha 5 Final with the MotoInspried 3.0 Theme. (I'm a sucker for a MotoUI but like this phone better.)

Awaiting my upgrade for the Sprint® Samsung® Galaxy® S™3 SPH-L710 because it's the only S™3 on an unlimited data 4G LTE network.
[Samsung Epic 4G Touch] metapy:
Ordered one today, it was out of stock yesterday or the day before when I looked last. I am in the same TPU case boat and will trim my current, slim case to fit once it arrives.
[Samsung Epic 4G Touch] MiguelHogue:
Thanks you all.. Plan on ordering one Sunday along with a external charger.. Will report back results when I get it:cool: