Replacing the S6 Battery with S7 Edge Battery

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mrdan

Member
Jan 30, 2008
6
1
Hi,
I read all this thread (and other forums on internet), but I can't find the answer with my question ....
I have a Galaxy S6 Edge, with lastest samsung rom (android nougat), not rooted
I want to replace my battery with a new one, but I read it's possible to put the s7 battery into an s6

But I want to know if it's possible to put the s7 battery into S6 EDGE (not the S6) ?

Here is the photo that I find on ebay of s6 edge battery :
s-l1600.png


And here the S6 :
s-l500.jpg


The little connector is not exactly the same on picture, you see ? but s6 is the same as s7

And I would like to know if I can put the s7 battery (not s7 edge) ? because the s7 battery is thinner

Thanks
 

Jim1973

Senior Member
Feb 24, 2016
69
33
I don't think you can fit any other battery to the s6 edge as the connectors are placed differently. I've never seen anyone change out an s6 edge battery I'm afraid.
 
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defybest

Senior Member
Jul 31, 2011
438
96
Went to mobile shop, tested S7 and S7 edge battery. S7 couldn’t fit nicely and S7 edge is just perfect. Daily driving my S6 now, initial cycle looks great.



In love with S6 again.
 
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DevisG79

Senior Member
Jan 26, 2015
411
150
Hannover
S7 Edge Battery

Went to mobile shop, tested S7 and S7 edge battery. S7 couldn’t fit nicely and S7 edge is just perfect. Daily driving my S6 now, initial cycle looks great.



In love with S6 again.
Did you remove NFC and wireless charging or does it fit good with those? Are the dimensions the same or does the phone become thicker, so that the case doesn´t fit anymore?
 

Jim1973

Senior Member
Feb 24, 2016
69
33
Did you remove NFC and wireless charging or does it fit good with those? Are the dimensions the same or does the phone become thicker, so that the case doesn´t fit anymore?

I have tested lots of replacement S7e batteries and they vary in size from different manufacturers. The thinnest was 3.8mm and thickest 5.2mm. You can keep the nfc and wireless with some but I binned it with the battery I use which is 4.2mm and it fits perfectly but the back was very slightly raised with it retained.
 

defybest

Senior Member
Jul 31, 2011
438
96
Did you remove NFC and wireless charging or does it fit good with those? Are the dimensions the same or does the phone become thicker, so that the case doesn´t fit anymore?

No, i keep everything intact. As someone said, different manufacture produce different battery sizes. Was lucky to get a perfect fit.



Enjoying S7 edge battery on S6.
 
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Jim1973

Senior Member
Feb 24, 2016
69
33
So, S7 Edge battery fits while S7 Flat battery doesn't? ....That is weird....

S6 and s6 edge have connectors on different side of the battery. S7 edge and S7 will fit S6 but not S6 edge. There is no point doing S7 as that is only 3000mah and is same thickness as the S7 edge battery at 3600 mah.

In summary if you have an s6 edge you are out of luck. If you have an s6 flat do the s7 edge conversion.
 

VedranB

Member
Nov 14, 2017
17
8
I've done the conversion, S7 Edge lasts much longer, but unfortunately the rear glass does not fit anymore, there is a gap between the frame and the glass. I have Nillkin Frosted case which is hard case and perfectly covers the rear, eliminating the need for rear glass.
 

exnokiafan

Senior Member
Aug 29, 2014
354
49
S6 and s6 edge have connectors on different side of the battery. S7 edge and S7 will fit S6 but not S6 edge. There is no point doing S7 as that is only 3000mah and is same thickness as the S7 edge battery at 3600 mah.

In summary if you have an s6 edge you are out of luck. If you have an s6 flat do the s7 edge conversion.

I can understand your point of view, but I got a dead S7 for free and 3000mah is in any case better than 2550mah. And well, free is better than anything else :D
 

Jim1973

Senior Member
Feb 24, 2016
69
33
I can understand your point of view, but I got a dead S7 for free and 3000mah is in any case better than 2550mah. And well, free is better than anything else :D

Fair point. Good luck with the conversion although it is pretty straightforward.

---------- Post added at 11:22 PM ---------- Previous post was at 11:19 PM ----------

I've done the conversion, S7 Edge lasts much longer, but unfortunately the rear glass does not fit anymore, there is a gap between the frame and the glass. I have Nillkin Frosted case which is hard case and perfectly covers the rear, eliminating the need for rear glass.

Rear glass will fit fine if you remove all the adhesive from under the old battery and take out the nfc and wireless charging pad. I never used either of them ever so I haven't missed them and the benefits of a massive battery outweigh their loss for me.
 
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cisekpro

Senior Member
Aug 23, 2011
73
11
Rzeszów / Poland
I did a swap with 3600mah battery in My s6flat, Changed Kernel to Aldeon 3.4 with support s7edge battery, but after some cycles I can't see any different. I think phone is not recognized more capacity than showing 2550mah How to change this value to 3600 in adnroid files, root ofc. ??
 
A

AGAWhitty

Guest
I would love the extra battery life but it all seems very risky :/

Edit:

Also, it seems after the effort it is difficult to get the phone to even use the whole capacity of the s7e battery.
 
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marras

Senior Member
Aug 17, 2008
60
19
dnUUY-zmr8_CTwSVVsqFrItEe8SMNLLh-10av0E7BsO1ji4bc1VaeE2Zxh0hY2gV-oik5DCK3KZgVD5X0MKLTwYbTAFWygeSFHKvGsPoEL33IDWS6v7wE63HDw0Ml89afAPQmJToisbnVuhtsqpuazC_HJxKL3A0kBOYlNYZZo77sgB470TEs0GWtS-LRFZ6be6n-4ZwUzoeAnfifdZXrhTmtVUZFlXixt-nDYH4ygbkAz__bkJn1eLh9O_sd5BP1AkTml4wpnWbFzLlxHy_4L85hkJPkdmv3EI-xAlGcW5ou-ihKGK7aop-ubtsxvjN2GEMz1SW-X1239spJVmSaLHNBy2mNOniiAqrU3EjfZflloLTCVtQfY1IYdPH3qoS1nzl6bpX53nxaXLwLTHCs1CCKlFLZTUcDE3ICWncidE5Gr3s0621lX8ZBAEEgxA1y4nv3v2Z6O030ibtQkVUAduVdCD0DPnoqQ4XNQqnH0XCvQGZTAzPZm4DZ4jxTzt6UktRcvEmsIqMmdrNej2KJcKR1W_6cveNoZhu9hpUlI5g8PqtaSYSmg09cCN1olNMYJUVeNXG6gtNQmaoWeKeQuGGtUKWf0EnHDs0pZxa=w570-h1011-no

check this out... why not s5 battery in s6 edge? simply cutted the circuit from old battery and soldered with new battery, worked flawlessly, accubattery reveal 2500mha, original should be 2800, so seems read correct. I want to try this mod with a s7 edge battery, but I don't know if it will fit in the phone. are the dimension the same between s6flat and edge?

Edit: ok, I just confronted s6 Edge battery with s7 Edge battery, and seems 2mm taller then mine, so is not possible... But I'm quite Happy with the actual mod, even if there is the risk of explosion, but who cares?
 
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  • 4
    Hello guys, I realized this mod. First I have to say it is easy task with lot of tools and heater. After battery replace (original new one s7 edge) the back cover doesn't fit like stock, but almost like stock. If you remove NFC/wireless charging tape then back cover fits like stock.

    After few days using my phone I see better battery SoT, but I am not sure if s6 really using whole huge capacity of 3600mAh. I think there is sw/hw limit for battery capacity.
    My s6 stays on 1% battery for 30min Sot, and another 30min in TWRP with 0-1% after android shutted down. When s6 is charged says 1h to full, but really time is almost 2h with black screen.

    I want to try S7 nonedge battery with 3000mAh and I expecting same results like with s7e because limitation. S7 battery is smaller, lightweight and thicker.

    Hope I help.
    4
    That's not quite "almost" the same size, the giant bulge created by the excess battery width is actually quite dangerous. All those exploding phones you see in the news, that's what happens when your battery is too big for the compartment it's in. Especially when charging, as the battery expands by up to 10%.

    Good luck, and be safe.
    Well, they are pretty much the same, really...
    15_battery_comparison.jpg

    16_battery_comparison_thickness.jpg

    As for the "giant bulge"... I would definitely not use these words - as you can see the thickness of the batteries is very similar. I agree of course that this is certainly not 100% safe and of course should be done with full awareness that you are cramming a battery with very chemically reacive metal in a body that was not designed to hold it.

    But don't get me started on the whole "exploding phones" bull**** - the media hysteria for less than 100 incidents from a batch of 2.5 million devices was just ridiculous. On a recent flight the air attendant asked any Note 7 owners to report to the captain... I mean come on... :laugh:
    I am not saying there was no issue with the Note 7 design, but that was just so much overblown, its not even funny.

    Can you update your battery stats ?? i think after lots of calibration you should have a more accurate percantage right? i read on a spanish site that you need to charge the phone at no more then 2% after a week of calibration and never let discharge it complitely! can you share your stats pls?

    I just did the mod yesterday - will update my article after I have several charge/discharge cycles - sometime during the holidays probably.
    Regarding the battery percentage reading, a few words - a battery can't tell how much charge it has left - you can only measure its output voltage. You define 0% charge as the minimum safe voltage under which your circuit can operate. So what Android does is that it creates a table with statistics about voltage readings and estimated charge. So after some cycles from 100% to 0%, this table gives pretty good estimation about your current battery charge in percentage. Switching from one battery to another, means that you need to reset those statistics, to have an accurate estimation. Since the file that holds those statistics is in the system partition, this can be done either via some service menu on some phones, or with an app with root access. So yeah - I did reset my battery stats and am still on the first charge (29 hours since unplugged) so it will take some time before I have some accurate battery stats to show.
    4
    looks different that original, anyway I don't suggest this type of replacement, even if is same voltage charging ic from s6 is design to charge a smaller capacity battery than s7

    Battery percentage <-- Android driver <-- Battery circuit <-- Li-Ion battery voltage sensor

    There is no such thing as phone "designed to charge a smaller battery". At least that is gross oversimplification... As long as the batteries operate on a similar minimum an maximum voltage, the charging "algorithm" will be more or less the same, and they will only take more time to reach the maximum voltage (max capacity) and be able to churn more power before the voltage drops to the minimum allowed ("zero" capacity). The initial configuration of the driver that tells what percentage is a specific voltage reading (i.e. 3.85 V = 75%) is specific not only for the battery model, but also changes over time as the battery degrades, so there is constant self correction of this voltage-to-percentage table, which people refer as "calibrating a battery". So even that S6 is configured initially to expect certain battery model, after deleting the old "calibration data" + some charge/discharge cycles - it adapts to the new battery characteristics.

    So the battery indicator is pretty complicated stuff - we really can't tell how much charge a battery has left, so we approximate it. And pretty well at that, as you all know.
    It is even more nuanced, as for example, when your phone charges to 100% and is plugged in, it stops charging and "lies" to you that it is 100%, when it is silently dropping to the nineties, to minimize battery degradation. Imagine the number of support calls that you will get from angry customers, telling you that their charger/phone is broken and can't charge to maximum. :D
    3
    You can check out my attempt to do so. It is not that hard, although I scratched tha paint from the inside when removing the back - its only cosmetic and not really noticable. If you have the proper tools its not such a big deal - the S7 Edge battery is almost the same size as the original S6 one. Still day 1 with the new battery, but so far it has been 9 hours and barely 25 percent drain. After some charge/discharge cycles it will probably improve even more.
    Especially since my original battery had significantly degraded, the difference is night and day.
    3
    I just did the mod yesterday - will update my article after I have several charge/discharge cycles - sometime during the holidays probably.

    Hey, did you manage to fit the backplate glass with this new battery? I have found a thread on reddit in which the guy states that the battery won't fit (in terms of thickness).
    The guy actually suggest to use S7 battery.
    Could you please post some more photos of modded phone? :)

    Link to the thread:
    https://www.reddit.com/r/GalaxyS6/comments/4vcsct/mod_s7_edge_battery_in_s6/

    Link to the gallery (one of the last photos shows that the glass won't fit):
    http://imgur.com/a/ZKqE6

    EDIT:
    I have just found your blogpost with pictures - it seems to fit much better than in the example from imgur gallery. How is the calibration going?