yashsingh1/xdaforums huggingface dataset:
[Galaxy S III Accessories] s0me guy:
k thx? :confused:

idk why ppl keep quoting the 1st cycle (kinda makes me want to delete the post :mad:)... the 2nd cycle was much better after calibration.

cant you find emm online? i got mine from the Verizon web store.

NFC totally working! :victory:

transferred some pics to my wifes phone with S beam today.
[Galaxy S III Accessories] DallasJones:
Looks awesome! Tempted to give it a try. Have you tried an extended battery cover?

Something like this: http://www.ebay.com.au/itm/4300mAh-...Accessories&hash=item3f1acf5d08#ht_1729wt_906
[Galaxy S III Accessories] xXJay_RXx:
This is just insane. I wish I had soldering skills lol but gotta give you props on this. This is cool
[Galaxy S III Accessories] s0me guy:
yes i have. in fact im using one of the backs that came with the set of MaxPower bats i grabbed on eBay.

http://www.ebay.com/itm/140784942341?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

thank you! :)

your welcome!
[Galaxy S III Accessories] s0me guy:
Update
[Galaxy S III Accessories] IRatchett:
why is your cell standby so high?
[Galaxy S III Accessories] WackyJoe:
Hmm...

I'm pretty sure there is a post/thread about cell standby being high on the SG3...can't remember where exactly but I'm sure that someone had a zip flashable patch for it too.
[Galaxy S III Accessories] DallasJones:
Is it a nice feeling cover? And is it bigger than necessary? I'm even more tempted now. I love how thin the phone is but I have a spare OEM battery and I could think of a lot of times this would be useful (Mainly weekends, camping, festivals, long roadtrips etc.). Since the second battery is only for extra power, I could just buy another and have both options :)

Thanks for getting back to me too.
[Galaxy S III Accessories] s0me guy:
id why cell stand by is so high. :(

i think that ext back is actually a better feel for the phone than the thinner stock back. but that just me. i think the thinness of the phone in the stock form is too thin for my taste and tends to make one handed use difficult. the added material after the accent piece makes the phone just sit so much better in your hand and is a great place for putting your fingers for grip when holding the phone.

all this gets dumped on tho if you 'need" a case.... :( i am normally not a case guy but ive seen an read about ppl dropping this phone once and the scren is done... so im looking for a good case and possibly moding one. but have not been successful yet.

i took pics of my phone with ext back and my wifes stock phone over here for a comparison:

http://xdaforums.com/showthread.php?t=1787678&highlight=max+power
[Galaxy S III Accessories] akamajic:
Great mod.

There's been a fix for the cell standby not reporting correctly. I have under 10 posts so I can't link it, but it's thread number 1732722 Your mod might fit well with the Defender case mod found at t=1822189
[Galaxy S III Accessories] ranchosteve:
I just had an idea, would it be possible to a galaxy note battery attached to the stock? Or would they have to be the same capacity.

I believe the notes battery is slightly longer, and might still fit in the extended back battery.

Any updates?.
[Galaxy S III Accessories] Hoshneer:
Any recommendations where to buy a good OEM battery?
[Galaxy S III Accessories] s0me guy:
I wouldt suggest using mixed cells.

Keeping the cells the sam capacity is ideal for a few good reasons.

I got my battery from Verizons web site
[Galaxy S III Accessories] jlodvo:
great job, would try this out in the near future!
[Galaxy S III Accessories] jev3gs:
Don't quote me in this, but from what I have read you should only use the same size batteries. I reason being is that the batteries will try to always balance them selves as they discharge and since one battery is larger the the other it will drain the batteries unevenly possibly causing extra heat.

Again I read this somewhere a few months ago, I it was is forum with rc cars I believe.
[Galaxy S III Accessories] 45FGF:
Some batteries like the middle of a stage battery expansion, but Samsung should not have this situation!
[Galaxy S III Accessories] likwaiw:
If you can buy one in the market or ebay, why bother to do it by yourself??? It is too dangerous for me I think. But anyway, nice try and interesting topic!!! Support!!! :laugh::laugh:
[Galaxy S III Accessories] drock212:
Doing it yourself is better than any of the extended Batts because all of the after market extended batteries are only 3.7 not 3.8 i think that's why with his mod we see such amazing results.

I ordered two supposed OEM batteries from amazon should be arriving in 5 days or so and I'm gonna do the same thing as all the extended batteries I have purchased (hyperion and qcell) are complete crap and barely last a day of moderate use no matter how I cycled them... I will post updates here once I've done the mod.
[Galaxy S III Accessories] akamajic:
I believe Anker is 3.8 4400 mah but no nfc. I have only tried hyperion and it can last over 2 days with light use and 18 hours of straight heavy duty use including weather, Facebook, emails, games, documents, talking, texting. The key is the screen brightness. No need to keep it at the dimmest setting but also no need to be super bright unless you spend a lot of time in the sun.
[Galaxy S III Accessories] drock212:
Just received my two OEM batteries from amazon. They're legit were 24.45 a piece which I think is a good price.

Excited to make my own extended battery
[Galaxy S III Accessories] ranchosteve:
Let us know how it goes :)
[Galaxy S III Accessories] johndyz:
The mod is great but i'm too scared to try and also i'd be adding too big of hump on my sexy phone :D
[Galaxy S III Accessories] hypertek:
Great article, really easy to do these sort of things. No offense to anybody, i think its kinda funny though when people ask to have something done when it is soo easy.

Hey does this mod result in being thinner than the typical extended batteries? Would love to see this get squeezed into a ballistic sg or otterbox commuter
[Galaxy S III Accessories] drock212:
Here's my update just finished its working 100% only problem I don't have any way of testing NFC but as soon as I can I will.

Followed instructions was super easy. Took someone's advise on here and used electrical tape for the ends instead of the normal tape.

I'll post my results of battery life after I get a good cycle.
[Galaxy S III Accessories] hypertek:
looks good, do you think you can measure how thick it is? maybe with a caliper, or even just a ruler on the desk. Looks like it might be slimmer than typical aftermarket extended batteries.
[Galaxy S III Accessories] drock212:
I'll take a measure tomorrow, it definitely fits a lot more snug than an after market extended battery width and length wise.
[Galaxy S III Accessories] drock212:
Oh also wanted to add this screen cap of the mah at about 3800. Which shows both batteries are connected properly.
[Galaxy S III Accessories] drock212:
Hey OP you said you don't have power saver on. Are you managing your cpu in any way?
[Galaxy S III Accessories] s0me guy:
LOL

i thought this thread died.

yea man, no power saving stuff. all 4G (no wifi) all other radios on all the time. screen brightness auto setting.

glad to see a few ppl still have the heart to mod. :victory:

FYI i used circuit board tape. which is better than electrical tape. its actually made for this kind of work. its light orange in color and very hard to break or cut compared to other tapes with high electrical resistance.
[Galaxy S III Accessories] drock212:
Lol I decided to try the mod kinda to show that it's not that hard for other people to do. Does your battery charge oddly? Mine seems to charge each battery separately.
[Galaxy S III Accessories] s0me guy:
no. both batteries charge equally if the mod is done right.

how are you even aware they charge differently? do you un-solder them and take a measurement with a meter?
[Galaxy S III Accessories] MattBooth:
Any shots of the phone with a cover on?
[Galaxy S III Accessories] drock212:
I have an app installed that tells me how long it will take to charge, says hour and a half but then an hour and a half later its still charging. which leads me to believe its charging 1 battery at a time. Also the way its discharge is off, my percentage drops then goes back up. I think 1 battery might be charging the other.

---------- Post added at 07:17 PM ---------- Previous post was at 07:15 PM ----------

Im using the cover that came with my Hyperion extended battery nothing fancy.
[Galaxy S III Accessories] uf21:
+1
[Galaxy S III Accessories] alberber:
hey this is an interesting idea :D
[Galaxy S III Accessories] s0me guy:
should be able to use just about any extended battery door.

i used the one from the Maxx power batteries i bought off ebay.

the thread is here:

http://xdaforums.com/showthread.php?t=1787678
[Galaxy S III Accessories] uf21:
Are the Max Power batteries just another chinese brand or are they a reputable brand?
[Galaxy S III Accessories] drock212:
It's amazing I'm on 24 hours with 5.5hrs screen time. BUT I also have discovered a lot of things that were running down my batter like wake locks and what nots
[Galaxy S III Accessories] Panamon:
Because this is XDA baby, and that's how we roll. ;)

I did this to my Vibrant S1 and to my Hercules S2 blindly with my fingers crossed.

Was going to do a post a tutorial but I will just point people here.

Great job OP.
[Galaxy S III Accessories] x Jumpman23 x:
i would really pay somebody to do this, as im scared to do this myself lol.
[Galaxy S III Accessories] Fuz2y:
thanks for this tutorial! good job! :cool:
[Galaxy S III Accessories] aboodmokhimer:
woooooow

thx man
[Galaxy S III Accessories] AndrewH05:
This is great! Thanks for the thread, unfortunately I already purchased a Anker 4400mah battery which should hopefully be comparable to this.
[Galaxy S III Accessories] mkollek:
Nice Mod! props 1+
[Galaxy S III Accessories] Djspinister:
Great mod!! +1 A+
[Galaxy S III Accessories] km00000:
Going to try this out. Any one know where I cab get OEM batteries for cheap? I have a 4300 mAh extended battery. But this seems to have a better life time.
[Galaxy S III Accessories] elracing21:
Seriously you should make an eBay account and sell your services. You can make aot of money making these nodded Batts for people.
[Galaxy S III Accessories] UrbanDesigns:
He wouldn't be allowed to sell that legally but he could sell it to people on here
[Galaxy S III Accessories] nm8:
This is just what I wanted to do... but what case or cover do you use? Thank you
[Galaxy S III Accessories] nm8:
In op's picture no.7, there are x2 contacts just beside the sim card slot. I don't have those contacts on my international S3, what are those for?

thanks
[Galaxy S III Accessories] JDogg1329:
That's awesome I love it. Can you take some pics of the phone and how it looks?
[Galaxy S III Accessories] seanwn86:
So I decided to do this mod. I had extra oem battery from an earlier insurance claim. FWIW, I've never had them say anything when I don't send in the battery with damaged phones.

My problem is that I have the otterbox commuter; which I like for protection, even if it is a little bulkier than I'd like. But I really like that the ports get covered, so I live with it. If I did the carry the spare as a back up, I still had to remove the case, which is a pain the ass! I've done it enough that it's actually loosened a corner of the glass from the phone. And unless I'm home, on wifi, it seems like I kill a battery in half a day. I'm new to the bay area, so when I'm out I may have to look something up, get directions, etc. but minimal navigating, or streaming of Pandora. So I was thinking of getting the oem 3000mah battery, but haven't seen any cases for it, and I had two perfectly good oem's. Anywho, here's how mine turned out, and the steps I took to modify my case:

Pic 1; My thoughts were start where I can chicken out and stop if I choose. So before I started on the batteries, I wanted to make sure I could modify otterbox. So I laid the battery in the phone, put some thin double stick tape on the battery. Then put the rubber part of the otterbox on, trying not to stick to the tape until it was completely on.

Pic 2; Pulled the case off with the battery successfully stuck to the rubber lining. Traced the outline with just a regular pen. Removed the battery, and with a new razor blade cut out the area.

Pic 3; Put the case on to double check. So far, looking good. My original plan was to not do anything to the original backplate, so I'd just be using the otterbox case. More on this later.

Pic 4; I then laid the rubber lining in the hard plastic shell, without the phone. I used a Klein scratch awl http://www.service.kleintools.com/T...rip Scratch Awl SCREWDRIV-AWLS TAP-CUSHSRCAWL to mark the corners. It's sharp enough and the plastic soft enough, that I just used hand pressure, to make some points at the four corners. Then I could drill holes, without the bit wanting to "walk" on me.

With the four corners drilled, I then used masking tape to layout my needed square. Lining up the tape along the outside of the holes. Then to hold the plastic shell I taped it down to a small cutting board(which I got in trouble for, apparently this makes it unusable now :rolleyes: whatever, now it's mine for "man-crafts" woohoo!).
[Galaxy S III Accessories] seanwn86:
pic 1; used my dremel to cut the straight lines, from the corner holes already drilled.

pic 2; cleaned up the cut using a razor blade and file.

pic 3; put it on the phone to check alignment. This is when I realized that after I solder the batteries together I won't have anything to hold it in.

pic 4; Put the stock back on, then my otterbox, and marked out the square. Used my dremel, to cut it out. Then used tape to seal it, and hold the battery in the phone.
[Galaxy S III Accessories] seanwn86:
Pic 1; All put together. So now the tape is sandwiched between the stock back plate, and the rubber lining. It's not ideal, but I did do some "testing", and feel safe about it until I find a better/more appealing solution. It does have a larger gap across the bottom, which is the result of doing all my lining up and cutting before I soldered the batteries together. Once soldered and the plastic end caps removed, it just ever so slightly shrank the size.

Pic 2; Showing just how much the battery is "proud" of the case.

Pic 3; Opposite corner as Pic 2.

Pic 4; The removed material; back plate+rubber lining+plastic shell. I was surprised to see just how thick it all added up to be.

Overall; I'm pleased. It hasn't made it any more difficult to drop/remove from pocket. I was concerned that the battery sticking out, even with how slightly it is, would be an issue. Something I wasn't expecting is I like the feel of the phone in my hand more. It feels more like it should for it's size. Before it bugged me just how light the phone was, with the size of it with the case on. Which is why I would leave the case off a lot, also because it was a hassle trying to remove the case when I needed to swap batteries. So there ya go, how I modified my case to accept a larger battery.
[Galaxy S III Accessories] nm8:
That's quite a good mod there, but how much did you waste? The back cover, otterbox case, x2 batteries... but I am sure it is worth it to you as it does what you want.

If it was me, I would just buy the Anker 4200 battery with cover, and buy one of those cases for extended batteries...
[Galaxy S III Accessories] vzwnexus:
this makes me want to try it. thanks for the idea guys! :good::cowboy:
[Galaxy S III Accessories] pwoz:
looks great, i gotta try that!
[Galaxy S III Accessories] pcorlatan:
Interesting question. I didn't notice those contacts at first and now I'm curious which model phone it is in order to figure out what they're for. The phone appears to be model SCH-R530 which is the U.S. Cellular version.
[Galaxy S III Accessories] nm8:
form what I read on the web, they are NFC contacts... this is very good as the NFC antenna of the Note 2 looks like it will fit..
[Galaxy S III Accessories] falcons2:
Definitely wanna give this a try. I have a couple anker batteries laying around maybe ill use those.
[Galaxy S III Accessories] Lycan84:
that time frame is insane dude. nice work, how long does it take to fully charge?
[Galaxy S III Accessories] jasonbtx:
Today is my first full charge after my first full discharge. after doing this mod. Battery widget says estimated run time 330 hours.
[Galaxy S III Accessories] jasonbtx:
Some guy hows your battery working? Still 4200 mah?
[Galaxy S III Accessories] greenbay:
Maybe s0meguys mod shorted out and gave him a grenade to the face?
[Galaxy S III Accessories] Croontje:
Going tot try that too in a few weeks :)
[Galaxy S III Accessories] lobuh:
Hi. Is this possível with two i897 captivate batteries? And do they need to have the same mAh?

I've been thinking about this mod for a while no. Bit i have a OEM battery and a 1800mAh onde.
[Galaxy S III Accessories] jasonbtx:
Both batteries need to be the same mah and fully charged before soldering. Preferably both new batteries
[Galaxy S III Accessories] lobuh:
Thanks. :highfive:

I'm gonna buy two equal batteries from eBay and test this.

Or is there any other place where i can find some good batteries for my Cappy.
[Galaxy S III Accessories] jasonbtx:
Just make sure their not counterfeit. I got mine from Verizon.
[Galaxy S III Accessories] gotchya:
Same mah? 4 what reason?

Does it really matter that much for both batteries to have the same mah?.....Why? And why fully charged?

Also, wiring this rig up for nfc seems like the same thing as just soldering + to + and - to - .... please clarify.

THE HEAT FROM THE SOLDERING PROCESS (MUCH HIGHER TEMP THAN THE FACTORY METHOD OF SOLDERING CELLS TOGETHER) IS PROBABLY DAMAGING THE CELLS TO SOME EXTENT?
[Galaxy S III Accessories] jasonbtx:
YES

Same mah for balanced charging.

So they are both reading.the same voltage. To do with charging circuit.

Correct on NFC.

350 degree thin electronic solder. No more than 3 seconds. Your not soldering directly to cells.
[Galaxy S III Accessories] akamajic:
Care to elaborate?
[Galaxy S III Accessories] Hälftebyte:
Is the process the same for the Note 2 batteries.. Got two OEM batteries and I'm ready to do this.
[Galaxy S III Accessories] s0me guy:
i really cant say 100% for sure, as i dont have any of those to test. but the general idea should be no different. your just wiring to batts in parallel (its just the NFC part that makes it confusing).

i have done this on quite a few different phones with no issues other than awesome battery life ;)
[Galaxy S III Accessories] Hälftebyte:
That's what I'm thinking.. just in parallel. And the Note 2 battery doesn't have NFC (NFC tag separate) so that makes it even easier.

What about the center contact? Leave untouched I'm guessing?
[Galaxy S III Accessories] s0me guy:
yea leave the center one alone. if im not mistaken this is the sensor contact. (batt temp ?) if you bridge that one it will mess up the value the phone reads.

the pos & neg are all you need to mess with. dont forget to have both batts fully charged before soldering. other wise they will be at different voltages and it will take many cycles before they equal out.
[Galaxy S III Accessories] Hälftebyte:
All right thanks. Hopefully i'll do it by weekend.
[Galaxy S III Accessories] slimdaddycmf:
Update up please with pics. I want to do the same with my zopo zp998. Thanks
[Galaxy S III Accessories] slimdaddycmf:
Can you tell me what type of wire you used to bridge the batteries together?
[Galaxy S III Accessories] realista87:
i am going to do the SAME thing on my galaxy mega 6.3. i use extended battery and idem by girlfriend..... so i have 2 fresh new original batteries. i will try this...... it's passed about 15 months with my max power 7600mah ( fake for sure) extended battery.

i give you a tip, if your original battery is 3000mah an extended battery CAN NEVER be for example 6500mah, 7000mah, 9000mah ( extept the zerolemon ones that use different batteries together).

i am going to test my phone battery with my new opus c3100
[Galaxy S III Accessories] mrtausif2004:
Can you please advise which Extended Cover I order from ebay for using this mod?

Many Thanks
[Galaxy S III Accessories] Rebeluch:
Hi,

I want to make this battery mod and I have three question.

Is this safe to phone?

Tension isn't too high?

Are both batreries chargeing in this same time?

Where can I buy case/cover for this mod?

Thank for answer :)
[Galaxy S III Accessories] poulopoulosa:
Hello,

I have a samsung s3 mini and I bought a 3500mAh battery from amazon (yeah right).

These kind of batteries through usually are build with rubish, cheap materials.

So I followed this guide and made my own 3000mAh (2x1500mAh) with original retail samsung batteries. And here the results

I dont use my phone so much so it is indeed anoying to charge it Every day.

Also I had another back (battery) cover when I bought this

So if any1 is doing a battery mod there are extended covers (at least for samsung)
[Galaxy S III Accessories] bboykuicks:
this is nice..i wish i can try this mod ^^

:D i'll try this someday..i'll just give a credit on you sir. someguy of XDA..

is that ok. sir? i need one of this battery because i'm a heavy gamer..i play online game for very long period of time..

so i wanna try your tutorial sir. someguy is it ok?
[Galaxy S III Accessories] LuBu161:
Wow!

it's work?

---------- Post added at 02:07 PM ---------- Previous post was at 02:01 PM ----------

very nice!
[Galaxy S III Accessories] realista87:
i found this guide https://it.ifixit.com/Guide/Phone+Battery+Doubling+Technique/24650

the guy solder in parallel DIFFERENT points.... than the regular pin contact like shown in this opining thred. what's the better option?
[Galaxy S III Accessories] gpjm15:
Here in the Philippines, some offer this kind of batteries in a cheap price.. Unfortunately, one of my friends bought one for his i9305. Which make his phone explode.. Yikes. :eek:
[Galaxy S III Accessories] pittvandewitt:
Hi s0me guy, thanks for the insane idea and the thread. (Come on, this is really crazy)

I had 2 spare batteries at home to modify and I was succesful. I noticed my battery percentage wasn't displayed anymore next to the icon if the battery(ies) were charging, so i removed the tape from the pin between the 2 soldered pins and the problem was solved. Just sharing my experience :good:
[Galaxy S III Accessories] Vix_Sk:
i wanted to buy a new battery majorated... for a bettere long usage..what type of battery can i bought?
[Galaxy S III Accessories] E36Nick90:
This is pretty interesting, I may just give this a try since I have two extra batteries laying around. Thanks :)
[Galaxy S III Accessories] yiazmaty:
What's the general consensus on the safety of this mod (assuming I perform the soldering perfectly)?

I'm basically wondering if there's any danger associated with charging a 4200mAh battery when the controller chips (if any) are geared closer to 2100mAh.

I'm comfortable with the soldering, but I don't really know much about battery function, so I'm concerned about that end of things.
[Galaxy S III Accessories] AnteLo:
You are Crazy man,hahahh

I maybe do this on my lg spirit
[Galaxy S III Accessories] nikoum:
Any update from somebody that did the mod ? Is it still working good, how long do you have the mod ? Come on guys give us a feedback
[Galaxy S III Accessories] LaweK:
everyone who use this mod die... So they cant give answer for your question :/
[Galaxy S III Accessories] Marlowguy:
How long it charges?
[Galaxy S III Accessories] has78:
Good idea but it looks dangerous and unsafe :confused:
[Galaxy S III Accessories] gradd:
im going to try this on my imei null s4 first before jumping forward my own daily driver phone. for those posts "why not get an aftermarket extended battery" well, this tutorial is rather useful for those phone who doesnt have extended battery available. but i have to balance them first