Woah! Best of luck! I think the refresh is nice but eh.Hey I was just typing a reply to this thread and have seen you reply to it before I clicked [Submit Reply] ...
Ok, so Im in a "triangle" situation here right now... yes I had more of them note7 on hand but now... I have only two coral blue note 7's, one is new and unused but still it is unsealed box unmodified/unupdated unit which works perfect and charges to a 100% battery etc which I intend to keep this way for later on selling it for a profit probably to some enthusiast collectioner guy...and another coral blue note7 is as good as new but it is used for few weeks by the first owner and it had this deadly update from samsung that prevented it from charging, so I have fixed this and now it is charging while still on its latest firmware and I am willing to play a little more with its firmware and so on until I decide to sell it too ... yeah I cant explain, I just enjoy reaching for some "goals", hitting them hard and then letting them go for someone else to enjoy while myself moving on, maybe weird, I know., but stay with me here for a moment. So I was thinking long and hard, and I am unable to justify splitting open my last firmware-fixed note7 that I was so anticipating on doing so ... that waterproof seal from factory means alot to me, I'd rather keep it on the phone for as long as I can, unless that would be inevitable, as I originally imagined the last note7 unit with disabled battery charging would require me to split it open to do at least battery charging up outside the phone just to get it ON so I could work on it trying to patch firmware and do some battery experiments further while Im at it, but as you may know I managed to fix it without opening it... and I few days ago (again...) I ordered myself another one of these bad boys Note7's, but this time its for real guys, its a cheap live demo unit (LDU), it should have no IMEI/no GSM radio chip and otherwise to be identical to retail units, so this is the model I will be stripping apart, most definitely, promise. Meanwhile I am really seriously thinking about learning on rom modding so I can build at least one or few fresh Note7 rom's for folks that are still out there holding on tight and giving all the love and care for their old note7's. The only one real reason is holding me back from keeping and using one of two note7 straight away and modifying it for self use is that I cannot get my hands on any dual sim note7 model (SM-N9300 or SM-N930FD), which I adore to death, literally... as my daily driver of a phone is S7edgde DUOS at the moment and it is a life saver not needing me to carry two phones everywhere I go, and any of note7's I had would make me do just that, use 2nd phone which is really not ideal at all... however dilemma in my mind goes to expect me to finally modify and use one of the two blue note7's if I will not be able to sell it for minimal no-loss profit, but for now I do not the plan on using any of them for daily use, hence my reasoning on waiting till I get Note7 LDU some time next week and give it all my tech-modifying love so I can break the IP68 water sealed back loose, probably crack it or scratch it and not be bothered about the rough love and abuse because Im about to give it, as this LDU has no such value as any of other retail units that I have... hope you's understand where Im coming from and are patient enough not to cross me over yet and wait a little more for my experiments on battery mods.
On another thought, since samsung-pay will not work and I am not sure if android pay will have any use with such heavily modified note7, I was really thinking taking out NFC/Wireless charging modules from the inside of the back of note7 to get more headroom for battery swap, plus if opportunity allows, I may as well split the chassis from the LCD screen later (if its feasible option) and measure the firewall thickness between the amoled screen and battery, see how much more I could machine off of that firewall while keeping some minimal amount of it still there for screen protection purposes, just a thought in an open wild triggered by the last samsung report regarding refurbed note7's which will receive thicker chassis, which may be ~2mm extra in thickness etc...
Note7 Battery SWAP MOD? Note5 / S6 / S7E Battery etc ?
- Thread starter Mr.Ultimate
- Start date
Woah! Best of luck! I think the refresh is nice but eh.
Alright, organized myself S7 original battery, should be about a week or so before it will hit me... I just really hope it is original authentic one and it is beautifully removed from old galaxy S7 (not bent warped etc...), since its used but in excellent condition (or at least so expected to be) I hope it will be like this, and if its thickness and rest of the measurements is a GO, good stuff, if not, I will order Note3 battery.
This battery and LDU Note7 should arrive at the same time next week (I estimate roughly...)
So thats that...
This battery and LDU Note7 should arrive at the same time next week (I estimate roughly...)
So thats that...
while still waiting for my packages, I was just randomly pondering trough some ideas, which are worrying to some extent.
#1 what if the donor part - the note7 battery PCB interface chip is going to try and force newly mounted battery (which would be S7 3000mAh battery) to charge all the way to 3500mAh as per standard note7 battery specs? That would lead to fatal consequences once again, almost bizare when come to think of it (not saying I am not thrilled to try hahaha!)
#2 what if it will charge battery to its maximum capacity as designed (for S7 battery it would be 3000mAh) and then stops charging as intended, but then when usability goes, what if the battery meter measuring is all messed up and it doesnt read battery % correctly? lets say if it stays stuck at certain % or moves down when discharging in a skewed fashion...?
#3 I was thinking if it was an option to remove charging IC controller from S7 battery charging PCB interface and solder it over in a place of Note7 PCB chip? just to have it all 100% done right(if the two of the above prove to be truth)
I am really anticipating it will all be fine and quick charge will work also, really excited to start working on this.
#1 what if the donor part - the note7 battery PCB interface chip is going to try and force newly mounted battery (which would be S7 3000mAh battery) to charge all the way to 3500mAh as per standard note7 battery specs? That would lead to fatal consequences once again, almost bizare when come to think of it (not saying I am not thrilled to try hahaha!)
#2 what if it will charge battery to its maximum capacity as designed (for S7 battery it would be 3000mAh) and then stops charging as intended, but then when usability goes, what if the battery meter measuring is all messed up and it doesnt read battery % correctly? lets say if it stays stuck at certain % or moves down when discharging in a skewed fashion...?
#3 I was thinking if it was an option to remove charging IC controller from S7 battery charging PCB interface and solder it over in a place of Note7 PCB chip? just to have it all 100% done right(if the two of the above prove to be truth)
I am really anticipating it will all be fine and quick charge will work also, really excited to start working on this.
Hey I am following your thread. Good stuff ! Im looking forward to the test. 
I have a Note 7 (replacement model) used only 2 days when I got it .. and didnt used it since. Now I look forward on the battery swap.
Keep up the good work :good::good:
I have a Note 7 (replacement model) used only 2 days when I got it .. and didnt used it since. Now I look forward on the battery swap.
Keep up the good work :good::good:
Thanks man, I believe the more genius minds would join this tech-trip the better it would be ...Hey I am following your thread. Good stuff ! Im looking forward to the test.
I have a Note 7 (replacement model) used only 2 days when I got it .. and didnt used it since. Now I look forward on the battery swap.
Keep up the good work :good::good:
thanks for following me on this
battery has arrived, waiting for the phone now. Measured battery just roughly quickly with measuring tape and it appears excellent candidate. ~4mm thick, ~80mm tall ~3.6mm width (just talking from my guestimates, nothing precise but looks smaller than anticipated )
Ok people, brace up yourselves for some updates! Been working on my note7 and this battery mod for past few days, will hit you's all with photos and details later today, some good/bad of both worlds and some unique on top
Alright people... some news as promised.
Got my S7 battery, in a real great condition as expected but... my bad, I have measured it all wrong from online sources with provided specs as per measurements of each unit.... feel a little like over-motivated idiot, but it was fun
Next >
I have gotten the very first revision note7 that was actually produced at the end of June 2016 as all markers indicate inside of the phone, and I believe it may have had this problematic battery issue pending to happen, Im 99.99% certain about that. The way its original battery was installed in it, and I repeat myself here, it was almost new note7 with all seals on it but still it was used/tested slightly, so... the original battery was literally squished inside with ZERO gap on the sides of the battery and just 0.1-0.3 mm max at the bottom and at the top of the battery, very very tight fitment, besides all that - it was glued in with adhesive and heating it up did not help much if anything at all in aid to remove it safe and in one solid piece. I have tried my very best, spent over half hour trying to pry ultra-thin neodymium-steel wire string (* that type of wire is used for cutting digitizer-lcd glue layers apart during special screen repairs) its real strong and solid super thin wire string and has proven hundred times when removing complicated way fitted batteries that did not help me to remove it as expected, such as iphone lg motorola and others, so guess what, after about 30 minutes of struggling and paper card prying pushing down the wire I eventually got to the bottom of the battery bay chassis, managed to navigate wire around the bottom of the battery edges corners and begin cutting the adhesive by slightly pulling the wire down(up direction of the phone as I had phone upside down), which turned out to be real heavy duty adhesive there and heating up the screen did not help either, I managed to cut the protective bottom layer of the battery and proceeded until wire seized few cm in and stopped and .... well ... no it did not get on fire, despite every rounded battery corners (I mean all of them), something you would get if you take perfect square of play-doh brick and drop it on its each edge corner, however, from that point on when I began smelling lithium evaporating, I had an epiphany that this may be the last time I have this beauty of a note7 in an un-burned condition, did not want to witness the fire on my desk first hand, seen enough on youtube and likes and I may be well running out of time at that moment haha so I grabbed my plastic prying tools and hard cards and forked that freak of a battery out of the chassis with force in a few more seconds, boy I gotta admit, that adhesive was bit** to get trough!!!... took some quick photos of the battery, unsealed battery charging PCB, unfolded it and slowly gently cut it away trough its aluminum terminals with paper-cutting blade from the main battery cell, and then wrapped it tight in to multiple layers of tin foil (sealing positive/negative terminals first of course) and dropped it off to battery recycling center nearby with a warning to the lady at the desk that the battery inside was leaking and very potential fire hazard, so that was that.
Next, all worries aside I have this beautiful note7, with firmware that needed patching because software was bricked by last samsung death update, and so it happened I had battery that fit just great, almost like was made for it
Guess what, yes it is apple iphone6 1810mah battery, it was very old and very high mileage battery that was to be thrown in to recycling a while back but for some unknown reason I still had it laying around. Last time I checked this battery was so bad it would show 70-80% and would power off the phone, however , before I removed it from that iphone and stored I had it fully charged so this gave me headroom for working of this project
the battery bay width in note7 is no more than 37mm, and while I still have about 5mm space left at the bottom of the battery which is great, this battery is so so slim it only occupies half the height of the battery bay dock, so theory goes - if I had two of this same battery in new condition and original apple battery, sandwiched two of them together soldered in parallel would yeld 3620mAh capacity while still fitting well inside so after all it all doesnt sound so bad does it?
I think I will look in to this now as I did some more research and that's the only reputable battery that I would trust which fits so perfect so far.
with this trashy condition battery I was able to charge it via standard charge rather quickly, it took about 1-1.5hour to have it recharge to full after discharge, 1080p youtube video stream video drained battery from 100 to somewhat 80% before it powered off the phone and recharging indicated 0% at the beginning... so although the phone still reports 3500mah samsung battery installed, its all because of note7 original battery chip present soldered on the apple iphone6 battery.
Otherwise it charged well trough normal charging, and charged even faster with quick charge! besides, battery remained cold the entire time when it was charging up after draining it either normal or fast charging methods, which seems very very good and promising to me!
I will have to gather few more batteries during the week to play around do more tests.
You guys tell me what do you think!
Photos:
https://postimg.org/gallery/3hzv2b9po/ <<< The gallery
Got my S7 battery, in a real great condition as expected but... my bad, I have measured it all wrong from online sources with provided specs as per measurements of each unit.... feel a little like over-motivated idiot, but it was fun
Next >
I have gotten the very first revision note7 that was actually produced at the end of June 2016 as all markers indicate inside of the phone, and I believe it may have had this problematic battery issue pending to happen, Im 99.99% certain about that. The way its original battery was installed in it, and I repeat myself here, it was almost new note7 with all seals on it but still it was used/tested slightly, so... the original battery was literally squished inside with ZERO gap on the sides of the battery and just 0.1-0.3 mm max at the bottom and at the top of the battery, very very tight fitment, besides all that - it was glued in with adhesive and heating it up did not help much if anything at all in aid to remove it safe and in one solid piece. I have tried my very best, spent over half hour trying to pry ultra-thin neodymium-steel wire string (* that type of wire is used for cutting digitizer-lcd glue layers apart during special screen repairs) its real strong and solid super thin wire string and has proven hundred times when removing complicated way fitted batteries that did not help me to remove it as expected, such as iphone lg motorola and others, so guess what, after about 30 minutes of struggling and paper card prying pushing down the wire I eventually got to the bottom of the battery bay chassis, managed to navigate wire around the bottom of the battery edges corners and begin cutting the adhesive by slightly pulling the wire down(up direction of the phone as I had phone upside down), which turned out to be real heavy duty adhesive there and heating up the screen did not help either, I managed to cut the protective bottom layer of the battery and proceeded until wire seized few cm in and stopped and .... well ... no it did not get on fire, despite every rounded battery corners (I mean all of them), something you would get if you take perfect square of play-doh brick and drop it on its each edge corner, however, from that point on when I began smelling lithium evaporating, I had an epiphany that this may be the last time I have this beauty of a note7 in an un-burned condition, did not want to witness the fire on my desk first hand, seen enough on youtube and likes and I may be well running out of time at that moment haha so I grabbed my plastic prying tools and hard cards and forked that freak of a battery out of the chassis with force in a few more seconds, boy I gotta admit, that adhesive was bit** to get trough!!!... took some quick photos of the battery, unsealed battery charging PCB, unfolded it and slowly gently cut it away trough its aluminum terminals with paper-cutting blade from the main battery cell, and then wrapped it tight in to multiple layers of tin foil (sealing positive/negative terminals first of course) and dropped it off to battery recycling center nearby with a warning to the lady at the desk that the battery inside was leaking and very potential fire hazard, so that was that.
Next, all worries aside I have this beautiful note7, with firmware that needed patching because software was bricked by last samsung death update, and so it happened I had battery that fit just great, almost like was made for it
Guess what, yes it is apple iphone6 1810mah battery, it was very old and very high mileage battery that was to be thrown in to recycling a while back but for some unknown reason I still had it laying around. Last time I checked this battery was so bad it would show 70-80% and would power off the phone, however , before I removed it from that iphone and stored I had it fully charged so this gave me headroom for working of this project
the battery bay width in note7 is no more than 37mm, and while I still have about 5mm space left at the bottom of the battery which is great, this battery is so so slim it only occupies half the height of the battery bay dock, so theory goes - if I had two of this same battery in new condition and original apple battery, sandwiched two of them together soldered in parallel would yeld 3620mAh capacity while still fitting well inside
so after all it all doesnt sound so bad does it? I think I will look in to this now as I did some more research and that's the only reputable battery that I would trust which fits so perfect so far.
with this trashy condition battery I was able to charge it via standard charge rather quickly, it took about 1-1.5hour to have it recharge to full after discharge, 1080p youtube video stream video drained battery from 100 to somewhat 80% before it powered off the phone and recharging indicated 0% at the beginning... so although the phone still reports 3500mah samsung battery installed, its all because of note7 original battery chip present soldered on the apple iphone6 battery.
Otherwise it charged well trough normal charging, and charged even faster with quick charge! besides, battery remained cold the entire time when it was charging up after draining it either normal or fast charging methods, which seems very very good and promising to me!
I will have to gather few more batteries during the week to play around do more tests.
You guys tell me what do you think!
Photos:
https://postimg.org/gallery/3hzv2b9po/ <<< The gallery
Last edited:
G
GuestK0079
Guest
how wonderful is your life? full of fear and lack of interests? talk down on someone elses achievements no matter how insignificant? no adventures yet enjoy pointing fingers on others? thoughts of blaming someone will solve something post fact? thats smart-talk, gtfo if you have nothing constructive to add
I will do "apple-sandwich mod" for this note7 and if it gets on fire posing risk to burn my house down it will have to toast trough my hip first and then we'll talk alright? :]
Interesting observation, my LDU Note7 is only running at 1.98GHz instead of 2.6GHz, it reports exact same CPU exynos8890, 4GB ram and 64GB flash memory storage, just CPU seems slower, so I ran CPU-Z to check whats what, temps and throttling etc, no problems, only that the CPU is well underpowered, I wonder after creating apple-sandwich battery-MOD will I be able to properly bench this device trying to pull most out of the new battery setup, just because of locked down CPU... the load may not be 1:1 to retail Note7 due to CPU frequency differences..
After playing around alot with rom's and firmwares on this LDU N7, it has has now been just about 24hours on a standby and occasional time/weather forecasts/on-screen memo checking etc , no internet browsing and still have 25% of the battery left, steady and nicely battery drains down while on flight mode with wifi off... to be expected for half-alive old iphone6 battery that may actually only hold ~1000mah of true capacity at this point.
I have located one more old iphone6 battery which I have now prepared for the project, should attempt to do this tonight, providing I can discharge them both low enough to the exact same voltage before bridging them together.
Providing this works, Im ordering two brand new original apple iphone6 batteries and will proceed from there.
One thing I have noticed, and I believe I stand correct but if Im mistaken please feel free to advise me otherwise.
Samsung in settings -> about -> battery info : reports battery is "9V 1.67A rated" which is I believe according to what phone reads from the original N7 battery charging PCB board that I have attatched to the apple battery. Now I believe this is because fast-charge technology used to charge the battery requires fast-charger that supports 9v output and therefore battery must be compatible with such charge-loads, however, I believe this N7 battery charging PCB board will attempt to charge any battery that is soldered to it in such way providing fast-charging feature is enabled and fast-charge adapter with appropriate USB cable is being used, so as far as apple batteries go - they dont support anything else than 5V 2.0A charge load, and therefore adjusts and downregulates to what apple battery cell can take via apple battery charging PCB. So my reasoning goes that fast-charging should not be used by anyone running such battery mod, and best way of doing this simply not using fast charger and reverting to old generation samsung charging brick that supports no more than 5V 2.0A power output, so even if phone is being reset and settings not changed in advanced power menu for fast-charging to be disabled, user would be in the most safest position with underpowered charger that does not provide 9V fast charging supported feature. Just saying, would be nice if like minded brains would tune in
After playing around alot with rom's and firmwares on this LDU N7, it has has now been just about 24hours on a standby and occasional time/weather forecasts/on-screen memo checking etc , no internet browsing and still have 25% of the battery left, steady and nicely battery drains down while on flight mode with wifi off... to be expected for half-alive old iphone6 battery that may actually only hold ~1000mah of true capacity at this point.
I have located one more old iphone6 battery which I have now prepared for the project, should attempt to do this tonight, providing I can discharge them both low enough to the exact same voltage before bridging them together.
Providing this works, Im ordering two brand new original apple iphone6 batteries and will proceed from there.
One thing I have noticed, and I believe I stand correct but if Im mistaken please feel free to advise me otherwise.
Samsung in settings -> about -> battery info : reports battery is "9V 1.67A rated" which is I believe according to what phone reads from the original N7 battery charging PCB board that I have attatched to the apple battery. Now I believe this is because fast-charge technology used to charge the battery requires fast-charger that supports 9v output and therefore battery must be compatible with such charge-loads, however, I believe this N7 battery charging PCB board will attempt to charge any battery that is soldered to it in such way providing fast-charging feature is enabled and fast-charge adapter with appropriate USB cable is being used, so as far as apple batteries go - they dont support anything else than 5V 2.0A charge load, and therefore adjusts and downregulates to what apple battery cell can take via apple battery charging PCB. So my reasoning goes that fast-charging should not be used by anyone running such battery mod, and best way of doing this simply not using fast charger and reverting to old generation samsung charging brick that supports no more than 5V 2.0A power output, so even if phone is being reset and settings not changed in advanced power menu for fast-charging to be disabled, user would be in the most safest position with underpowered charger that does not provide 9V fast charging supported feature. Just saying, would be nice if like minded brains would tune in
Last edited:
After trying something out it seems only generic replacement batteries of iphone6 replacement line is the key.
Original iphone6 battery seems ~1.5mm thicker than the generic replacement replica battery, therefore it adds up and it is just too thick for the back to go back on. Will try get few of the generics and go from there.
I asume it will not be great quality batteries but just wanna try anyway, should deliver ~2000-2500mah when combined I believe.
Otherwise Im thinking of other options, and Im sure there will be some as time goes by, just need to discover which one is the best of the options as from any other new/old samsung galaxy phones and maybe other manufacturers too.
Got myself a wireless battery backpack for note7 to do some more experiments later
Original iphone6 battery seems ~1.5mm thicker than the generic replacement replica battery, therefore it adds up and it is just too thick for the back to go back on. Will try get few of the generics and go from there.
I asume it will not be great quality batteries but just wanna try anyway, should deliver ~2000-2500mah when combined I believe.
Otherwise Im thinking of other options, and Im sure there will be some as time goes by, just need to discover which one is the best of the options as from any other new/old samsung galaxy phones and maybe other manufacturers too.
Got myself a wireless battery backpack for note7 to do some more experiments later
re-measured battery compartment of note7 chassis, and it comes out at:
38.4mm * 99.2mm * 5.4mm
38.4mm * 99.2mm * 5.4mm
Ok Ok OK!
after some second thoughts and ideas, I went and inspected S7 3000mah battery again.
Have stripped it of the black sealing tape material around the sides, found silver battery container material was over-laping and folded on to the sides of the battery adding some unnecessary width to the S7 battery in my case here, so after removing the tape material and folding back the excess battery container sealing material on the edges of the battery I am now measuring my S7 battery width @ 38.15mm which leaves not too much but enough space for having this battery nicely fit and still have slight movement side to side. We're of course talking just ~0.175mm side to side gap, but that is alot compared to how original LDU note7 battery was jammed in there without any gaps. Tallness of the battery is also sufficient @ 5mm and this battery being shorter sufficiently makes it perfect DIY candidate!
Soldering and doing final mod of the day right now
after some second thoughts and ideas, I went and inspected S7 3000mah battery again.
Have stripped it of the black sealing tape material around the sides, found silver battery container material was over-laping and folded on to the sides of the battery adding some unnecessary width to the S7 battery in my case here, so after removing the tape material and folding back the excess battery container sealing material on the edges of the battery I am now measuring my S7 battery width @ 38.15mm which leaves not too much but enough space for having this battery nicely fit and still have slight movement side to side. We're of course talking just ~0.175mm side to side gap, but that is alot compared to how original LDU note7 battery was jammed in there without any gaps. Tallness of the battery is also sufficient @ 5mm and this battery being shorter sufficiently makes it perfect DIY candidate!
Soldering and doing final mod of the day right now
Its in and its charging well! started to recharge from 0% and even as a first go trying with a fast charger and quick charge option enabled, battery still just room/body [email protected] already 33% , reports ~1h11min remaining till full charge, took about 15 minutes to get to this charge level from zero using fast charge.
uploading some eye-candy here:
https://postimg.org/gallery/2whfuvsmk
gonna give it a full charge and see if it drops temperature when reaches 100% or continues to maintain the temperature (etc overcharge)
uploading some eye-candy here:
https://postimg.org/gallery/2whfuvsmk
gonna give it a full charge and see if it drops temperature when reaches 100% or continues to maintain the temperature (etc overcharge)
Charged up to 100% in I dare say ~1h and not much more while charging via fast-charge battery temp was constant room temp, CPU-Z reported ~32+ Celsius , temperature dropped to ~30-31+ C when battery charge reached 50% mark, and when it was closing in to the full 100% charge I observed @99% mark temperature of battery began to drop to ~29.0-29.5+ C rather rapidly, battery voltage at that specific moment was reading 4357mV , and when it hit 100% it did not change, maintained at the same charge level and temperature of the battery continued to drop, which is all good signs!
Reassembly of the phone back was easy enough. Talking about bent edges of the S7 battery container material underneath the battery as seen in pictures has battery slightly raised which is flexible feature and battery can be easily pushed in enough without effort, which was what happened assembling the back case on, I felt slight tension underneath when reattaching the back glass but after applying some hot air and pressure I think all had ironed out. Have this now set in a note7 battery-backpack case which grabs phone real well and should keep the back glued to the chassis till it cools down and adheres sufficiently therefore holding bouncy retro-fitment design S7 battery well in place.
while charging via fast-charge battery temp was constant room temp, CPU-Z reported ~32+ Celsius , temperature dropped to ~30-31+ C when battery charge reached 50% mark, and when it was closing in to the full 100% charge I observed @99% mark temperature of battery began to drop to ~29.0-29.5+ C rather rapidly, battery voltage at that specific moment was reading 4357mV , and when it hit 100% it did not change, maintained at the same charge level and temperature of the battery continued to drop, which is all good signs!Reassembly of the phone back was easy enough. Talking about bent edges of the S7 battery container material underneath the battery as seen in pictures has battery slightly raised which is flexible feature and battery can be easily pushed in enough without effort, which was what happened assembling the back case on, I felt slight tension underneath when reattaching the back glass but after applying some hot air and pressure I think all had ironed out. Have this now set in a note7 battery-backpack case which grabs phone real well and should keep the back glued to the chassis till it cools down and adheres sufficiently therefore holding bouncy retro-fitment design S7 battery well in place.
That's just amazing... What does CPU-Z or any other app report as the maximum battery capacity?Charged up to 100% in I dare say ~1h and not much more
Reassembly of the phone back was easy enough. Talking about bent edges of the S7 battery container material underneath the battery as seen in pictures has battery slightly raised which is flexible feature and battery can be easily pushed in enough without effort, which was what happened assembling the back case on, I felt slight tension underneath when reattaching the back glass but after applying some hot air and pressure I think all had ironed out. Have this now set in a note7 battery-backpack case which grabs phone real well and should keep the back glued to the chassis till it cools down and adheres sufficiently therefore holding bouncy retro-fitment design S7 battery well in place.
Battery capacity is reported as 3500mah because we're using original note7 battery pcb. I was looking in to replacing chips and capacitors/resistors from s7 battery pcb on to n7 battery pcb but these chips has diff layout of pins 6 on s7 vs 8 on n7 each... so it's not an option.
The only other option I thought off was leaving entire s7 pcb on and by using spare battery connector jumping appropriate wires from it directly on to socket of s7 Battery, only because we still have so much space under the back case at the bottom of the battery, battery could be moved all the way down and the gap at the top can be used for wiring and folding of flex connections etc.
However at this point I don't think it's necessary as I was measuring voltage as it was approaching 100% voltage climbing had stopped before it loaded to 100% and temperature suddenly began to drop also. So in theory n7 battery pcb understands s7 capacity well and does not overcharge it at all, especially even when using fast charge!
The only other option I thought off was leaving entire s7 pcb on and by using spare battery connector jumping appropriate wires from it directly on to socket of s7 Battery, only because we still have so much space under the back case at the bottom of the battery, battery could be moved all the way down and the gap at the top can be used for wiring and folding of flex connections etc.
However at this point I don't think it's necessary as I was measuring voltage as it was approaching 100% voltage climbing had stopped before it loaded to 100% and temperature suddenly began to drop also. So in theory n7 battery pcb understands s7 capacity well and does not overcharge it at all, especially even when using fast charge!
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