Related
I've come across some people that say the GS2 battery should not be drained completely since for this type of battery it's not good.
lckh said:
I've come across some people that say the GS2 battery should not be drained completely since for this type of battery it's not good.
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http://www.google.com/search?q=Is+it+bad+to+completely+drain+a+lithium+ion+battery?
ctomgee said:
http://www.google.com/search?q=Is+it+bad+to+completely+drain+a+lithium+ion+battery?
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Pants - is the only way to describe that post, false info.
It does no harm at all to fully discharge, more problems are caused by giving regular, short charges, than 1 long full charge so i wouldnt believe that.
He also says to charge it 8-10 hours, that total rubbish as well, these batteries dont need 8-10 hours to prime, on average 3-4 hours for a full charge is more than adequate.
I think few year back batteries were far inferior and did indeed need longer charging periods, but not any more, and if ya flash roms a lot and need to calibrate your battery after flashing to a new custom rom indeed part of the calibration process is completely running down the battery, my s2 is well over a year old and has been drained flat many a time and i still get 14 - 20 hours out of it on average, which is damn good for any smart phone these days, That post is on a HTC Thread by the way, Htc notoriously have batteries with a crappy life span, i had a wildfire s, used to get about 6 hours out of the battery.
I don't think that's true.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
graemeg said:
ctomgee said:
http://www.google.com/search?q=Is+it+bad+to+completely+drain+a+lithium+ion+battery?
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Click to collapse
Pants - is the only way to describe that post, false info.
It does no harm at all to fully discharge, more problems are caused by giving regular, short charges, than 1 long full charge so i wouldnt believe that.
He also says to charge it 8-10 hours, that total rubbish as well, these batteries dont need 8-10 hours to prime, on average 3-4 hours for a full charge is more than adequate.
I think few year back batteries were far inferior and did indeed need longer charging periods, but not any more, and if ya flash roms a lot and need to calibrate your battery after flashing to a new custom rom indeed part of the calibration process is completely running down the battery, my s2 is well over a year old and has been drained flat many a time and i still get 14 - 20 hours out of it on average, which is damn good for any smart phone these days, That post is on a HTC Thread by the way, Htc notoriously have batteries with a crappy life span, i had a wildfire s, used to get about 6 hours out of the battery.
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My post is full of false info? The one linking to direct Google search of the OP's question? Interesting.
ctomgee said:
My post is full of false info? The one linking to direct Google search of the OP's question? Interesting.
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Hmmmmmm, no, you didnt start the thread, i was replying to the starter of the discussion, not yours.
More importantly, where is your link meant to point, coz from what i can see it only points to a google search and not to any specific document, unlike donalgodon who posted a very interesting and intriguing link indeed with so much info
graemeg said:
Hmmmmmm, no, you didnt start the thread, i was replying to the starter of the discussion, not yours.
More importantly, where is your link meant to point, coz from what i can see it only points to a google search and not to any specific document, unlike donalgodon who posted a very interesting and intriguing link indeed with so much info
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Which was actually one of the results of the google search, if you bothered to look.
I was trying to impart the fact to the OP that he could easily find this info himself.
Also, if you were replying to him, then why did you quote my post, saying "Pants - is the only way to describe that post, false info"? Context is important.
ctomgee said:
Which was actually one of the results of the google search, if you bothered to look.
I was trying to impart the fact to the OP that he could easily find this info himself.
Also, if you were replying to him, then why did you quote my post, saying "Pants - is the only way to describe that post, false info"? Context is important.
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aBSOLUTLEY, QUOTING YOURS WAS INDEED AN ERROR ON MY BEHALF, SPOSE DUE TO TIRED EYES SO APOLOGIES IF THAT CONFUSED YOU INTO THINKING I WAS MEANT TO QUOTE YOU, WAS INTENDED FOR THE ORIGINAL THREAD STARTER.
See what i mean, just realised i hit caps lock instead of shift, hmmmm, oh also yes i agree completely, google is completely the place to look so point taken, its suprising what you can ask google and still get an answer, i dont think some people realise that if they have a question in mind, then the likelihood is, someone else already asked it, yet they still dont google it, or maybe its just down to laziness that people dont goole anymore.
graemeg said:
aBSOLUTLEY, QUOTING YOURS WAS INDEED AN ERROR ON MY BEHALF, SPOSE DUE TO TIRED EYES SO APOLOGIES IF THAT CONFUSED YOU INTO THINKING I WAS MEANT TO QUOTE YOU, WAS INTENDED FOR THE ORIGINAL THREAD STARTER.
See what i mean, just realised i hit caps lock instead of shift, hmmmm, oh also yes i agree completely, google is completely the place to look so point taken, its suprising what you can ask google and still get an answer, i dont think some people realise that if they have a question in mind, then the likelihood is, someone else already asked it, yet they still dont google it, or maybe its just down to laziness that people dont goole anymore.
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Mine was a rhetorical question, but it's all good, dude.
Lol, short version: Depending on the battery type you will want to drain it completely before charging or never drain it completely. Let it charge fully overnight or it only needs a few hours.
Seriously, do some reasearch on batteries. Figure out what types there are, how they are different, and what makes them different. each has advantages and disadvantages.
Every battery type is a little different. For our phones will be different than for your rechargable nicad batteries at home, or the batteries in your remote control vehicles.
Bottom line: We COULD tell you, but that would be defeating the purpose. Instead we are pointing you in the right direction to acquire the knowledge yourself. Happy hunting! let us know how it works out!
In simple, it actually causes more harm discharging the battery to empty.
There is alot of do's and donts to preserve the battery,
Info:
The Li‑ion charger is a voltage-limiting device that is similar to the lead acid system. The difference lies in a higher voltage per cell, tighter voltage tolerance and the absence of trickle or float charge at full charge. While lead acid offers some flexibility in terms of voltage cut‑off, manufacturers of Li‑ion cells are very strict on the correct setting because Li-ion cannot accept overcharge. The so-called miracle charger that promises to prolong battery life and methods that pump extra capacity into the cell do not exist here. Li-ion is a “clean” system and only takes what it can absorb. Anything extra causes stress.
Most cells charge to 4.20V/cell with a tolerance of +/–50mV/cell. Higher voltages could increase the capacity, but the resulting cell oxidation would reduce service life. More important is the safety concern if charging beyond 4.20V/cell. Figure
Discharging:
Li-ion should never be discharged too low, and there are several safeguards to prevent this from happening. The equipment cuts off when the battery discharges to about 3.0V/cell, stopping the current flow. If the discharge continues to about 2.70V/cell or lower, the battery’s protection circuit puts the battery into a sleep mode. This renders the pack unserviceable and a recharge with most chargers is not possible. To prevent a battery from falling asleep, apply a partial charge before a long storage period.
Battery manufacturers ship batteries with a 40 percent charge. The low charge state reduces aging-related stress while allowing some self-discharge during storage. To minimize the current flow for the protection circuit before the battery is sold, advanced Li-ion packs feature a sleep mode that disables the protection circuit until activated by a brief charge or discharge. Once engaged, the battery remains operational and the on state can no longer be switched back to the standby mode.
Do not recharge lithium-ion if a cell has stayed at or below 1.5V for more than a week. Copper shunts may have formed inside the cells that can lead to a partial or total electrical short. If recharged, the cells might become unstable, causing excessive heat or showing other anomalies. Li-ion packs that have been under stress are more sensitive to mechanical abuse, such as vibration, dropping and exposure to heat.
And may i point out, this is a community, People ask questions and peoples feedback, the web is not always correct and nor is the information you find.
It takes more effort to argue with someone and to point someone in the right direction, instead of just answering there question.
We have all been New here once before.
dave7802 said:
In simple, it actually causes more harm discharging the battery to empty.
There is alot of do's and donts to preserve the battery,
Info:
The Li‑ion charger is a voltage-limiting device that is similar to the lead acid system. The difference lies in a higher voltage per cell, tighter voltage tolerance and the absence of trickle or float charge at full charge. While lead acid offers some flexibility in terms of voltage cut‑off, manufacturers of Li‑ion cells are very strict on the correct setting because Li-ion cannot accept overcharge. The so-called miracle charger that promises to prolong battery life and methods that pump extra capacity into the cell do not exist here. Li-ion is a “clean” system and only takes what it can absorb. Anything extra causes stress.
Most cells charge to 4.20V/cell with a tolerance of +/–50mV/cell. Higher voltages could increase the capacity, but the resulting cell oxidation would reduce service life. More important is the safety concern if charging beyond 4.20V/cell. Figure
Discharging:
Li-ion should never be discharged too low, and there are several safeguards to prevent this from happening. The equipment cuts off when the battery discharges to about 3.0V/cell, stopping the current flow. If the discharge continues to about 2.70V/cell or lower, the battery’s protection circuit puts the battery into a sleep mode. This renders the pack unserviceable and a recharge with most chargers is not possible. To prevent a battery from falling asleep, apply a partial charge before a long storage period.
Battery manufacturers ship batteries with a 40 percent charge. The low charge state reduces aging-related stress while allowing some self-discharge during storage. To minimize the current flow for the protection circuit before the battery is sold, advanced Li-ion packs feature a sleep mode that disables the protection circuit until activated by a brief charge or discharge. Once engaged, the battery remains operational and the on state can no longer be switched back to the standby mode.
Do not recharge lithium-ion if a cell has stayed at or below 1.5V for more than a week. Copper shunts may have formed inside the cells that can lead to a partial or total electrical short. If recharged, the cells might become unstable, causing excessive heat or showing other anomalies. Li-ion packs that have been under stress are more sensitive to mechanical abuse, such as vibration, dropping and exposure to heat.
And may i point out, this is a community, People ask questions and peoples feedback, the web is not always correct and nor is the information you find.
It takes more effort to argue with someone and to point someone in the right direction, instead of just answering there question.
We have all been New here once before.
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Click to collapse
Indeed, not everything on the web is correct.
But may I point out that all you did was copy and paste text from this page, which donalgodon linked in post 4, and again, I feel I must point out, was actually one of the results in the Google search I linked him to.
The point I was trying to make, and seems lost on you, is teaching people how to look for stuff on their own. No one should just expect to be spoon-fed information. That is lazy to just post a question on a forum, sit back, and watch the answers roll in. You should do your own legwork and research.
As the old adage states: give a man a fish, and you feed him for that day. Teach a man to fish, and he is fed forever.
Hi Guys,
I am a technician at a local Sprint store. I've had a sudden influx of customer who are experiencing problems with their S3 discharging quickly. Yesterday I had a S3, I removed the battery to test the voltage with a CEN-TECH Digital Multimeter. The setting of the voltage meter is set to DCV 20. I plugged the phone into a charger and tested the voltage output only to recieve a 0.00 reading.(yes i tried multiple chargers) When I put the battery back into the phone, the battery had lost 20%. This is a problem that I would like to find a fix for so that I no longer have to order replacement phones for customers.
My background...
I started as a sales rep, became a assistant store manager, starting college in the fall so I dropped down to a technician.
I am going into the informatics field so i thought it would be best to become a technician. I am farely new to the technician spot but still know alot about computers and technology.
Please help me out =)
This is not a Sprint forum see sticky top of the page .
jje
I ask for an opinion to experts.
I installed the app Battery Life Repair
https://play.google.com/store/apps/details?id=com.BoshBashStudios.batterydoctorrepair
I can't understand if this app is really effective or if it is a fake. In both cases, if you want to give your opinion can you justify it with technical considerations?
It's strange to see so many high ratings, but it is also strange that there are no tests or in-depth reviews.
Sorry for bringing a thread from the dead but I am also very curious as to how this app works (or if it does at all).
Such apps don't work.. They're usually fake and earn money through ads. Battery life is purely hardware and can't be increased by a software other than changing kernel features...
Sent from my Moto G
MasterAwesome said:
Such apps don't work.. They're usually fake and earn money through ads. Battery life is purely hardware and can't be increased by a software other than changing kernel features...
Sent from my Moto G
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Click to collapse
what a load of crap.
You can increase the length of your battery time betweeen charges by lessening the load on the cpu(which causes ups in voltage usage).
we reduce cpu load by reducing ram usage too.
also, turning the display brightness down and turning off unneeded features like bluetooth or wifi.
the kernel can be made more efficient like you said. so i agree there.
Lgrootnoob said:
what a load of crap.
You can increase the length of your battery time betweeen charges by lessening the load on the cpu(which causes ups in voltage usage).
we reduce cpu load by reducing ram usage too.
also, turning the display brightness down and turning off unneeded features like bluetooth or wifi.
the kernel can be made more efficient like you said. so i agree there.
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Click to collapse
Trying to do that the battery app takes more battery by being in the background always. sometimes it also steals data.. There's no point you're better of without it.
Regards
MasterAwesome
Sent from my Moto G
MasterAwesome said:
Trying to do that the battery app takes more battery by being in the background always. sometimes it also steals data.. There's no point you're better of without it.
Regards
MasterAwesome
Sent from my Moto G
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Click to collapse
Of course the battery does nothing.
thats what the settings > battery
function is for anyways. to see the resource hog of the system.
so it works in identifiying the problem.
but your right, the battery app is unnecessary since we already have a stock implementation.
but that wasn't my point. my point is that you can modify the userspace for more battery between charges.
Lgrootnoob said:
Of course the battery does nothing.
thats what the settings > battery
function is for anyways. to see the resource hog of the system.
so it works in identifiying the problem.
but your right, the battery app is unnecessary since we already have a stock implementation.
but that wasn't my point. my point is that you can modify the userspace for more battery between charges.
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Click to collapse
At the end of day we agree that battery apps are not required... Android is pretty optimized by itself.
Decrease screen brightness and timeout it takes the highest amount of battery.
Sent from my Moto G
MasterAwesome said:
At the end of day we agree that battery apps are not required... Android is pretty optimized by itself.
Decrease screen brightness and timeout it takes the highest amount of battery.
Sent from my Moto G
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Click to collapse
"At the end of day we agree that battery apps are not required.." obviously.
"Android is pretty optimized by itself. " its not about android(I didnt mention android being optimized, I figured that it was pretty obvious and didnt need discussion), it was about android having the tools to find the problem. see the following:
"Decrease screen brightness and timeout it takes the highest amount of battery. "and this brings me to MY POINT.
We are talking about app hogs which ARE a problem.
I would expect the OP has enough of a brain to reduce the brightness.
You have app services that use tons of ram and cpu. Why can't you accept that?
The theory behind a battery app is legitimate, but the OP just has to use the builtin android application.
Lgrootnoob said:
"At the end of day we agree that battery apps are not required.." obviously.
"Android is pretty optimized by itself. " its not about android(I didnt mention android being optimized, I figured that it was pretty obvious and didnt need discussion), it was about android having the tools to find the problem. see the following:
"Decrease screen brightness and timeout it takes the highest amount of battery. "and this brings me to MY POINT.
We are talking about app hogs which ARE a problem.
I would expect the OP has enough of a brain to reduce the brightness.
You have app services that use tons of ram and cpu. Why can't you accept that?
The theory behind a battery app is legitimate, but the OP just has to use the builtin android application.
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Click to collapse
Confrontation Much
The original posting he said was that software does not have impact on hardware in that it can not fix physical damage on the battery such as dead cells.
Such apps are just fake.
I purchased a new phone and same day I installed repair battery life. It showed 8 low cells and one inactive. It claimed it will increase my battery life by 18% (WOW, LOL)
After that I tried again and it showed me all green cells.
I cleared the app's cache, cleared data and uninstalled the app.
Later on, I calibrated the battery with another app called "battery fix" which needs root and deletes batterystats.bin file
I once installed "repair battery life" and guess what? It showed again 8 low cells and one inactive.
It's just another fake crAPP
Number of cells shown suggests fake.
I tried Battery Life Repair by "Extended Apps " and I remain very sceptical. Nowhere it is explained what the app actually does.
A normal Phone has one or two cells. This app shows 100 cells and claims that some are broken or damaged and the software can repair it through some extraordinary (supernatural?) process. It Claims it repaired these problematic cells (like 5 out of 100), although it physically makes no sense considering a phone has one or two cells, which are usually either working or broken. Then it also requests access to media, identity and accounts, which is suspicious given what the app claims to do.
Comments in the app-store just prove to me that placebos work. On the other hand, some people figured that if the "battery repair" is done, the app data is deleted and the app run again, it again shows the same amount of "problematic cells".
aj1789 said:
I tried Battery Life Repair by "Extended Apps " and I remain very sceptical. Nowhere it is explained what the app actually does.
A normal Phone has one or two cells. This app shows 100 cells and claims that some are broken or damaged and the software can repair it through some extraordinary (supernatural?) process. It Claims it repaired these problematic cells (like 5 out of 100), although it physically makes no sense considering a phone has one or two cells, which are usually either working or broken. Then it also requests access to media, identity and accounts, which is suspicious given what the app claims to do.
Comments in the app-store just prove to me that placebos work. On the other hand, some people figured that if the "battery repair" is done, the app data is deleted and the app run again, it again shows the same amount of "problematic cells".
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Click to collapse
I strongly suspected myself this app is complete bull twaddle, but I was also curious so installed it just to see what it makes of the battery "analysis".
It magically 'fixed' the problem cells, but unlike you on a subsequent retest the previously 'faulty cells' had still be 'fixed'.
I wonder how this app is polling the 'cells'? Or is it just making up some fancy graphics and not actually doing anything at all under the hood?
I also wonder what would happen if I switched batteries or took the existing one out and in again? Maybe I'll try at some point.
This is my experience.
I thought this is impossible but i installed it just to try..
In that time i first tryed it i had Galaxy 3 Apollo. Battery was so bad that percentage was going low when you were looking on it and after some short period of time phone just shutdown by itself.. I decided to try it so maybe i save money for new battery. With few shutdowns i finally did it and something happen. Battery didn't go low that way and phone stoped turning off by itself!! It could stop while i was washing dishes but it was "fixed" after i used that app, so i dont know. I don't personally think that some app can fix hardware issue but i think it works as some "refresh" or something like that. I don't know really but in my case was money saver what ever that is. Oh and i'm talking about "Extended Apps" app.. :/
I'm also skeptical about these things but unlike others in here, I tried before drawing conclusion with my awesome rational brain. And yes it works marvelous. My Galaxy Note 3 battery is working as brand new, giving 3 to 4 days without charging and it was 1 to 2 days before the app. I don't think that is placebo effect and I have absolutely no idea what the app does, and too bad the dev doesn't have a website, but the app is good. Also using the other app from the same dev, called Advanced Battery Calibrator and letting the phone charge till 100% while off did wonderful things.
I still wonder how it can fix hardware of it simply erase data from the battery increasing risk to catch on fire, but it does work.
As far as I know, the software keeps data of the battery in other to avoid charges over 100%. With time that will effectively make the battery charge till 99% then 98% and goes on, till u have a battery on 70% for example but the software say its 100%, because it wont charge more than that to avoid the risk of fire. Perhaps this app erase that data and increase the risk of mal function. But I have no idea.
douglasrac said:
I'm also skeptical about these things but unlike others in here, I tried before drawing conclusion with my awesome rational brain. And yes it works marvelous. My Galaxy Note 3 battery is working as brand new, giving 3 to 4 days without charging and it was 1 to 2 days before the app. I don't think that is placebo effect and I have absolutely no idea what the app does, and too bad the dev doesn't have a website, but the app is good. Also using the other app from the same dev, called Advanced Battery Calibrator and letting the phone charge till 100% while off did wonderful things.
I still wonder how it can fix hardware of it simply erase data from the battery increasing risk to catch on fire, but it does work.
As far as I know, the software keeps data of the battery in other to avoid charges over 100%. With time that will effectively make the battery charge till 99% then 98% and goes on, till u have a battery on 70% for example but the software say its 100%, because it wont charge more than that to avoid the risk of fire. Perhaps this app erase that data and increase the risk of mal function. But I have no idea.
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Click to collapse
If your battery has dead cells im sorry but no app will fix it, unless its magic! It must replace the cells somehow magically! Omg do some basic research these apps are fake garbage! Maybe it can fix my dead s3 battery hahaha NOT!
hilla_killa said:
If your battery has dead cells im sorry but no app will fix it, unless its magic! It must replace the cells somehow magically! Omg do some basic research these apps are fake garbage! Maybe it can fix my dead s3 battery hahaha NOT!
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ofc is not gona revive a battery,but even that it can be made,in some cases,i saw that of ppl proving that live,they took a dead battery and test it to show that it is dead and just used another same model battery that it was working and hold them connected like 5 min toghether,after that it just put the dead battery at charged and what u know?it did revived it,no idea how the battery actually work,but it seems that they can actually get stuck somehow and they can get a "forced" revive,like a CPR for humans,but like i said,not working with all,same as like on humans,not all can be revived with CPR,but i guess that this app has to do something coz like some in here i did used it and ... the magic worked,not on a dead battery,so scheptical as it sounds,on some batteries it works even tho maybe is not something hardware but maybe just something software,why i say that,i had a tablet and a few times when i was restarting the tablet,after a min was turning off coz of battery 0%,and that after i got the recharger plug off,so it was 100% for sure,after a few times restarting the tablet it was showing again 100 % as it should be,so i guess that not even android is always reading the data correctly
Of course is a full fake. Uninstall them, becouse they can do bitcoin mining or whatever gain trough pupup and promotions., as well as getting your data.
1) Ion litium or polymer batteries cannot be repaired.
2) cells are 1 or max 4 not 256 as those apps shows
3) clearing the cache brings different fault cells
4) reinastalling shows other broken cells
5) strangely the application after "repair" stays open in background. So at least the word "repair" is a joke fooling people.
6) dynamic ram and ddr are always powered and refresh cycles are required in all the address space generally, so saying that freeing ram allow more battery duration is a fake.
7) whatever the app does to have battery least more is just sw and tricky. I would not rely on that and remove the app.
Wow...
MasterAwesome did u disable Lgrootnoob's account because it says its disabled was it because he challenged ur opinion? lol childish much? Who cares if it works it either works or it doesnt I dont see it hurting me
---------- Post added at 07:50 AM ---------- Previous post was at 07:47 AM ----------
Crazydan360 said:
MasterAwesome did u disable Lgrootnoob's account because it says its disabled was it because he challenged ur opinion? lol childish much? Who cares if it works it either works or it doesnt I dont see it hurting me
Click to expand...
Click to collapse
Didnt notice this was my brothers account he uses my phone
Hello, there's a way to calibrate your battery without root.
to calibrate your battery, i found by my self a way to(when i did it, the battery time left was increased):
1)charge your phone to 100% battery.
2)turn on- wifi, auto rotation, bluetooth...(everything that is consuming battery not including apps)
3)leave your phone with screen off.
4)discharge much as you can.
5)when you finished, charge your phone and don't use the phone.
optional:
if you want a proof that this is worked- open settings and see how much time left for your battery(you will see that it had been increased).
FYI I just finished testing Battery Life Repair 2018 by running it on a new Android tablet with a huge 8000+mAh battery. It reported about 14 weak or bad cells out of a total of 120 cells. When told to fix those cells, it requests you to download another of their apps to help support them. Just say YES, then kick back out without downloading and the fix finishes. I had hardware "USB Safety Tester" connected during this test (it displays various info including the charging voltage and amperage). With about 12% of the cells reported bad, after the fix the Tester recorded zero increase in Volts or Amps. So it maintained a steady watt draw from the charger even after 14 more cells were now drawing watts to charge. Next I cleared storage on the app, ran it again, and got 12 different cells reported to have problems. Fixed those cells, and again, no change in charge draw.
I also found it strange that it would use WIFI and Cell Data and run in the background. Why?
The Battery Life Repair app reports that my Galaxy S5 also has 120 cells in its battery. Seeing as almost 99% of phones and tables have a SINGLE cell in their battery (one or two phones have 2 cells), the display of a 120 cell grid seems rather fishy. Having a 120 cell battery requires cell balancing hardware and software that that would add to the cost of the phone, plus make the battery physically larger. My electric bike has about 80-90 cells in it and it weighs about 15lbs and is 30,000 mAh and 47 volts. Hard to do in one or two cells. That is a good example of why a multi cell (3.6 v each?) battery is needed. But not a cell phone or tablet.
I know my test is not the most scientific, but at least I did check for a change in wattage draw before and after fixing cells, and not just ecstatically claim my battery has improved.
So I call Battery Repair Life 2018 to be a steaming pile of BS that is probably robbing you of your contacts and other personal information while running in the background sucking up your data plan. But, hey, that's just me.
So this is a long debate I guess,
Should I charge my device overnight and sleep? Does it affect my phone's health. My uncle who happens to be a telecom engineer and also thinks of him as a pro in Electronics says there is an auto circuit that cuts off as soon as the battery reaches to 100.
As far as I have read hardware, the auto-cut feature is present only in selected high end phones.
I don't want to end up with wrong infos.
And please people posting to this thread, please do not provide haphazard info. I need to get this doubt off my head.
With credit to VR-25 from Github:
If you edit these files and put you own values in then your phone will start charging when it drops below 75% and stop when it gets to 80%. (put your own values in, etc.)
I have only tested it briefly but it seems to work for AC and USB charging for me so far. No other apps or tweaks needed.
/sys/devices/platform/google,charger/charge_start_level:75
/sys/devices/platform/google,charger/charge_stop_level:80
EDIT: You need to be rooted to do this, and you need to reapply the settings after reboot.
I have a Tasker action that does this automatically 5 minutes after rebooting.
If only there was a way to use that without root :-S
What would be the purpose for this.
I always charged to a 100% and never had issues on my devices.
I use the adaptive charging overnight and think that will help with battery life.
vandyman said:
What would be the purpose for this.
I always charged to a 100% and never had issues on my devices.
Click to expand...
Click to collapse
If you do some reading you will see that charging over 80% and draining under 20% will significantly shorten the lifespan of your battery. This is important for those of us that have devices not sold in our country so getting replacement batteries would be very difficult and expensive. I have phones that are more than 9 years old and still going fine if charged like this.
Galaxea said:
If you do some reading you will see that charging over 80% and draining under 20% will significantly shorten the lifespan of your battery. This is important for those of us that have devices not sold in our country so getting replacement batteries would be very difficult and expensive. I have phones that are more than 9 years old and still going fine if charged like this.
Click to expand...
Click to collapse
If you would have read the correct information on this subject. You would know that this not true for today's battery technology.
This is nothing but a myth.
You will have a better chance looking for Bigfoot.
Why waste 40% of your battery use....
vandyman said:
If you would have read the correct information on this subject. You would know that this not true for today's battery technology.
This is nothing but a myth.
You will have a better chance looking for Bigfoot.
Why waste 40% of your battery use....
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On the contrary. The most recent phones attempt to limit the time that they spend at 100% exactly because it's so bad for battery longevity. Having options like the OP's approach just gives users more flexibility, should they want more control than, in this case, Google's adaptive/AI approach.
And it's not 'wasting' 40% of the battery. Keeping between 80% and 20% just optimizes battery service life during those days you only actually only need 60% of it's possible capacity. When working from home that's often the case for me. I actually tend to use ~30% of the battery in a day. Better to charge it up daily to about 70% than all the way to 100% and let it go down to 10% over 3 days. If it's easy to do, why not?
Not quite the same, but EV design also has their batteries normally operating in the middle range so as not to compromise their service life...
Definitely not myth. The only myth is that lithium cells exhibit a memory effect and need to be deep discharged and fully recharged periodically to maintain their capacity. It's actually bad for them to do this! The only reason to do this would be in an attempt to recalibrate the software for the battery level gauge (at the cost of a little damage to the battery each time you do that).
vandyman said:
What would be the purpose for this.
I always charged to a 100% and never had issues on my devices.
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Most folk don't notice reduction in battery capacity until it becomes severe. For example, a friend claimed it wasn't a problem charging his iPhone to 100% ritually. When he checked the OS, it said his battery capacity was 80% of what it was when new. He said he hadn't noticed it affect how long the phone lasted.
If your usage is such that you can predict how much capacity you need, you can choose to charge to 100% only those times you will actually need that capacity. Other times you can look after the battery so it's able to actually give near on 100% for longer, those times it's important to you.
Others who keep their phones a short time or are comfortable with the cost & inconvenience of a battery replacement, or simply don't care, don't have to worry....
WibblyW said:
On the contrary. The most recent phones attempt to limit the time that they spend at 100% exactly because it's so bad for battery longevity. Having options like the OP's approach just gives users more flexibility, should they want more control than, in this case, Google's adaptive/AI approach.
And it's not 'wasting' 40% of the battery. Keeping between 80% and 20% just optimizes battery service life during those days you only actually only need 60% of it's possible capacity. When working from home that's often the case for me. I actually tend to use ~30% of the battery in a day. Better to charge it up daily to about 70% than all the way to 100% and let it go down to 10% over 3 days. If it's easy to do, why not?
Not quite the same, but EV design also has their batteries normally operating in the middle range so as not to compromise their service life...
Definitely not myth. The only myth is that lithium cells exhibit a memory effect and need to be deep discharged and fully recharged periodically to maintain their capacity. It's actually bad for them to do this! The only reason to do this would be in an attempt to recalibrate the software for the battery level gauge (at the cost of a little damage to the battery each time you do that).
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This all maybe good if you are planning on keeping your device for a few years.
Most people buy a new device every other year. If not once a year.
... and if you really want to knacker the battery, heat it up too!
Worst case scenario - using a sat nav app on your phone in the car on a hot day with the phone plugged into a car adaptor. It's going to be sitting there at elevated temperatures, possibly with the sun shining on it, whilst being kept at 100% battery....
I'm only a customer (and have no other affiliation) and like to tinker, so I got one of these for use in the car to limit temperature when charging and limit max charge. Not cheap, but ok compared with the cost of the phone https://chargie.org/
I'm sorry, but at the snails pace this phone charges I'd be very surprised if charging it to 100% every night will make any noticeable difference in the long run. I had a Xiaomi Mi10 Ultra with 120W fast charger. That phone used to charge from 0% to full in like 20 minutes. Now that's one way to quickly kill your battery.
The Pixel uses your alarm to adaptively charge the battery so it should never overcharge it anyway. I'd much rather us all of my battery than use it only between 20 and 80% just for it to last a little longer.
The files are overwritten on reboot so I created a Tasker task to write the values on reboot each time.
Biggenz said:
I'm sorry, but at the snails pace this phone charges I'd be very surprised if charging it to 100% every night will make any noticeable difference in the long run.
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On what basis? All the research and tests are based on charge level not charge rate. Fast charging potentially just makes it worse...
But at the end of the day it's your phone. You'll charge it in whatever way works for you.
I feel like this post sort of misses the point. It clearly is aimed at those intending to keep their phones >1yr, it is stated explicitly.
I'm not rooted right now, so I've been using the AccuBattery app. One of the things it does it gives a notification every few minutes when the battery is at 80% or above so that you can physically unplug the phone from the charger. Obviously having this done automatically would be better, but I've been surprised at how well the notifications have worked in my case. Plus, I can always leave the phone plugged in if I know I need a full battery for some reason (ie a long day away from any charging source).
Galaxea said:
With credit to VR-25 from Github:
If you edit these files and put you own values in then your phone will start charging when it drops below 75% and stop when it gets to 80%. (put your own values in, etc.)
I have only tested it briefly but it seems to work for AC and USB charging for me so far. No other apps or tweaks needed.
/sys/devices/platform/google,charger/charge_start_level:75
/sys/devices/platform/google,charger/charge_stop_level:80
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Dumb question but what did you use to write values into those files? Did you use a text editor (with root access) or just termux or something? I tried with the built in MiX text editor but it seems to choke once I open up the file.
Gibsonflyingv said:
Dumb question but what did you use to write values into those files? Did you use a text editor (with root access) or just termux or something? I tried with the built in MiX text editor but it seems to choke once I open up the file.
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I used FX File Explorer (root option). Look for the #. SYSTEM (Root).
I was wondering if changing the file permissions after writing to them to read-only would make the changes stick, but I am sure the OS could still overwrite them...??
I wonder if there's a similar variable to tweak at what temperature the phone considers the battery is too hot and stops charging?
Galaxea said:
With credit to VR-25 from Github:
If you edit these files and put you own values in then your phone will start charging when it drops below 75% and stop when it gets to 80%. (put your own values in, etc.)
I have only tested it briefly but it seems to work for AC and USB charging for me so far. No other apps or tweaks needed.
/sys/devices/platform/google,charger/charge_start_level:75
/sys/devices/platform/google,charger/charge_stop_level:80
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Did a bit of testing and it works fine. A few things I noticed:
1. Doesn't survive reboot. Now that I've set up MiX with pinned folders, I can make the change in seconds. Need to sit down and read through the acc documentation because AccA doesn't work. Would love to have an automatic solution. Miss my old Battery Charge Limit.
2. charge_start doesn't seem to matter. After all, if charge_start is set to 75 and the phone is at 70%, it shouldn't charge. But it does. I've kept mine at 0.
3. Point #2 is kinda beside the point, though, because charge_stop will stop at the set value and stay there. No noticeable increase in temperature from what I can see. Definitely less than when charging.
4. Still shows as charging rapidly when it hits the level. Is it rapidly cycling charging on and off? Or in a kind of micro-current state? Or this may be a true battery idle situation where all power is drawn from the adapter. Ampere and AccA just show "not charging".
Edit: With a bit of use today, it does seem to act like a normal min/max charge deal, so I set it at 75 start/76 stop. Not sure what was happening at first...maybe something to do with the adaptive charging since I still have that on. Either, way, no complaints. With my use case working from home, I have it plugged in most of the day and it'll only take me about a minute to change charge_stop to 100 when I'm planning to go out all day somewhere away from chargers. Not ideal, but still a big improvement. Changes my rating of the thing from maybe 3.5 stars to 4.5.