I installed the Serendipity Rom a few days ago and I noticed the battery goes down to 98% as soon as I unplugged. Some occassions I overcharge an hour after it has 100%, some occassions I unplugged as soon as it said 100%. Charged it with the phone on, and some occassions the phone off. I tried to use bump charging, but still the same issue.
I also notice the battery life is not as good as stock either. I used a Stock rogers froyo before.
Any ideas what might be the cause of this? How I use the phone is the same way. I think its the phone being on standby that's causing the drain. Usually when I sleep the phone goes down by about 2-3% in standy mode by the next morning. With this ROM it goes down like 8% during sleep.
Any ideas?
Edit: I did not realize this was in the development section. It was intended to be in Q/A
Run battery dead and do a full uninterrupted charge to 100%. Turn off any features or apps that would blatently be killing battery as well.
likiud said:
I installed the Serendipity Rom a few days ago and I noticed the battery goes down to 98% as soon as I unplugged. Some occassions I overcharge an hour after it has 100%, some occassions I unplugged as soon as it said 100%. Charged it with the phone on, and some occassions the phone off. I tried to use bump charging, but still the same issue.
I also notice the battery life is not as good as stock either. I used a Stock rogers froyo before.
Any ideas what might be the cause of this? How I use the phone is the same way. I think its the phone being on standby that's causing the drain. Usually when I sleep the phone goes down by about 2-3% in standy mode by the next morning. With this ROM it goes down like 8% during sleep.
Any ideas?
Click to expand...
Click to collapse
It's working properly. When 100% charge is reached the controller stops charging to prevent damage to the battery. It then lets the battery charge "float" down a few points before charging back up to 100% again. Depending on when you happen to unplug in one of these cycles, you might be anywhere between 97-98 and 100% charge.
This might be a better question for another section.
From what I understand its an issue with 2.2.1. There is nothing you can do to fix it. I also don't get great battery life with serendipity. I switched to the suckerpunch kernel to undervolt. Seems to be working out pretty well
Sent from my SAMSUNG-SGH-I897 using XDA App
Smallsmx3 said:
From what I understand its an issue with 2.2.1. There is nothing you can do to fix it. I also don't get great battery life with serendipity. I switched to the suckerpunch kernel to undervolt. Seems to be working out pretty well
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
It's not an issue like you said. It's a feature. Read the previous post.
The dropping to 98% is a Samsung thing, it's supposed to increase the life of your battery.
Yeah, i heard it does that to keep it from over charging when left plugged in.
ls377 said:
The dropping to 98% is a Samsung thing, it's supposed to increase the life of your battery.
Click to expand...
Click to collapse
It's a Li-on thing, not just Samsung. Same thing occurs with all lithium battery chargers (other phones, cameras, laptops) to prevent overcharging. Some other chargers kick back in as soon as it drops to 99% though, whereas this one does not.
ninjuh said:
Run battery dead and do a full uninterrupted charge to 100%. Turn off any features or apps that would blatently be killing battery as well.
Click to expand...
Click to collapse
That's what I did. The apps and features were the same as it was with the rogers stock froyo. I'll see if the battery gets better the next few days.
likiud said:
That's what I did. The apps and features were the same as it was with the rogers stock froyo. I'll see if the battery gets better the next few days.
Click to expand...
Click to collapse
That rogers stock must be nice, ATT stock gives you 50% battery in 4-5 hours :/
moved to general as not android development
likiud said:
I installed the Serendipity Rom a few days ago and I noticed the battery goes down to 98% as soon as I unplugged. Some occassions I overcharge an hour after it has 100%, some occassions I unplugged as soon as it said 100%. Charged it with the phone on, and some occassions the phone off. I tried to use bump charging, but still the same issue.
I also notice the battery life is not as good as stock either. I used a Stock rogers froyo before.
Any ideas what might be the cause of this? How I use the phone is the same way. I think its the phone being on standby that's causing the drain. Usually when I sleep the phone goes down by about 2-3% in standy mode by the next morning. With this ROM it goes down like 8% during sleep.
Any ideas?
Click to expand...
Click to collapse
You can try this.
After full charged message comes up, unplug power cord, battery from 100% drop to 98% or 96% immediately.
Then plug power cord again, charge again until fully charge (again).
Unplug power cord, see if battery level can hold on 100%
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Why don't people read in the threads that they get Rims from. This has been covered numerous times.
Sent from my Captivate running Cezar's Continuum v.2.1 with SuckerPunch kernel.
Unplug, replug worked great. Thanks!
johan8 said:
You can try this.
After full charged message comes up, unplug power cord, battery from 100% drop to 98% or 96% immediately.
Then plug power cord again, charge again until fully charge (again).
Unplug power cord, see if battery level can hold on 100%
Click to expand...
Click to collapse
You might as well have a messaging phone if your never even going to turn the screen on
Im having this problem running di11is 6.0 rom...I've read the posts and everybody claims BETTER battery life with the rom...if I use it it drops really quick...I just text and check youtube for about 5 minutes and it drops about 2%...if it sits undisturbed it doesn't drop fast at all
Sent from my SAMSUNG-SGH-I897 using XDA App
newter55 said:
You might as well have a messaging phone if your never even going to turn the screen on
Click to expand...
Click to collapse
What do you mean ?
My screen use auto brightness.
I get the same problem. But what I do is that I leave it for an extra 30min even after it says it's fully charged, that way when i unplug it, it will still be full.
Well, to wipe data and wipe factory reset before you flash a new rom may be helpful. And also, just ignore the 98% bat thing. It really doesn't matter.
johan8 said:
What do you mean ?
My screen use auto brightness.
Click to expand...
Click to collapse
The comment was in regards to your screen shot. What is the display time? Never seen display in the 60s personally...or even 70s for that matter.
Related
Exactly what the title says. The phone says it has charged completely but the battery is only at 96%. I'm currently draining the battery and I'm going to recharge it, but is this normal? I've had this phone for six months.
souvik1997 said:
Exactly what the title says. The phone says it has charged completely but the battery is only at 96%. I'm currently draining the battery and I'm going to recharge it, but is this normal? I've had this phone for six months.
Click to expand...
Click to collapse
What rom are you on? Wipe your battery stats and cycle it a couple of times and eventually it'll hit 100 or 99 once you unplug
This happens to me as well. if you leave it long enough it will go to 100. it is a calibration error and will not actually hurt battery life, just how it is reported.
souvik1997 said:
Exactly what the title says. The phone says it has charged completely but the battery is only at 96%. I'm currently draining the battery and I'm going to recharge it, but is this normal? I've had this phone for six months.
Click to expand...
Click to collapse
As Jce9182 asked, which rom are you running, and if you're not running any custom rom, are you at least rooted? The issue here sounds like it is most definitely a battery reporting error. This can be fixed by using an app from the market like Battery Calibration. You can also try the following with use of the market app for calibrating the battery. It's best to complete this procedure in the evening before going to bed, so you can leave it at 100% overnight and check in the morning if the issue has been resolved. The whole procedure along with recalibration might take up to 5-6 hours or more!
1. Take the case off your phone (if you're using one, as one of the latter steps involves taking the battery out from the phone while it's plugged in. Make sure your case won't stand in the way.)
2. Install Battery Calibration app from the market: Find it here!
3. Plug in your phone to charge while it's on, and wait until it gets to a 100% (or 96% as it appears in your situation)
4. When the charged, open the Battery Calibration app and look up what the charge is in mV while at fully charged. Write it down.
5. Discharge your phone completely until it shuts off. A good way of doing this quickly is by turning on WiFi, and a video player.
6. Without turning on the phone plug it into a wall charger and let it get to 100% (or 96% if this is all you will be able to see before finishing these steps)
7. When it's charged, without unplugging it from the wall charger, take off the battery cover, and take the battery out. Your phone will "reboot" and show a Missing Battery icon.
8. Without unplugging the phone from the wall charger or turning it on, put the battery back in and wait until the phone recognizes the battery.
9. Your battery should now be recognized by the phone, and showing a charge % significantly lower than 100%. Mine showed only 5%.
10. Let it sit there charging for 2-3 hours. My phone wouldn't charge past 10%, but yours might. The numbers don't matter much as the phone is definitely getting additional charge that could have been lost while flashing ROMs, etc.
11. After 2-3 hours, turn the phone on while holding the volume down button and get into CWM. Do not disconnect it from the charger still!
12. Wipe battery stats in CWM, reboot. Do not disconnect it from the charger still!
13. When the phone turns on, go into Battery Calibration app again and look up your MV numbers- if you were like me, they should be significantly higher than before. Do not disconnect it from the charger still!
14. Before going to sleep - Install Watchdog Task Manager from the market. Go into it's preferences, set CPU threshold to 20%, check "Include phone processes", check "Monitor phone processes", check "Display all phone processes", set system CPU threshhold to 20% as well. Do not disconnect it from the charger still!
15. Make sure your wifi and data connections are off. Now finally unplug the phone from the charger. Go to bed, let your phone sleep too.
16. Success! Next morning check where your battery % is at and if you followed the instructions correctly / got lucky like me, your battery life should be 90% or more. I went to bed with 98% and woke up to 94%. So, I consider this mission a success.
(Your general battery capacity should have increased, even if something still was draining the battery, you will be able to find the infringing process in WatchDog with the settings we've set up in step 14)
Hope this helps... :good:
Apex_Strider said:
2. Install Battery Calibration app from the market: Find it here!
4. When the charged, open the Battery Calibration app and look up what the charge is in mV while at fully charged. Write it down.
13. When the phone turns on, go into Battery Calibration app again and look up your MV numbers- if you were like me, they should be significantly higher than before. Do not disconnect it from the charger still!
Click to expand...
Click to collapse
Should i click "calibration" on battery calibration app?
And what is the MV number that you got after all?
Thanks
kojitabe said:
Should i click "calibration" on battery calibration app?
And what is the MV number that you got after all?
Thanks
Click to expand...
Click to collapse
Click "calibrate" after the phone has been on the charger (wall, not USB to PC charge!) For several hours -preferrably after charging all night- and calibrate using the app in the morning.
The Mv I get at full charge is in the neighborhood of 4351-4353Mv or so:
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Sent from my MB865 using xda premium
I've had my phone for quite a while now and played around with it a lot. Originally, I power cycled the battery, thinking it was the best thing to do. To my dismay, my battery barely lasted me through the day. No matter what I did, I could not get it to match what some other people indicated they get out of their battery - 35-40 hrs or more. I rooted, dimmed the display, installed JuiceDefender, uninstalled Juice Defender, unrooted, power cycled 3 or 4 times again...
...and then one day I woke up, probably three month into me having the phone, and the phone was amazing. I came home from work at 5 pm with 72% still on the battery. I was in heaven. Until a month ago.
A month ago, I accidentally let the battery run out completely. I had done that before (though I try not to) so I thought it wasn't a big deal. I hadn't installed any new apps or done anything differently, but now my battery will hardly last me through the day again. My once amazing battery is less then average again.
I've tried everything you normally read on forums. I have a good idea of how to save battery life - it's set to Maximum Battery Savings - and have tried all of the stuff that is typically recommended. I've not killed apps, but I don't think that would really help to begin with anyway.
So...here I am to ask if anybody has any other ideas for me. Anything at all? The thing is...I didn't change anything when my battery was cut down to less than normal size!!
Help?!?
Rogue app update. Try bad ass battery monitor should give you an idea which one
Motorola lied and I'm still locked mb865
Thanks, I will try that. I tried Battery Monitor, which told me AT&T Address Book was a main culprit. Doubt that since I could never do too much about that one...
This is what you'll see under the apps tab. Much more useful than others I've tried.
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"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
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"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
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Motorola lied and I'm still locked mb865
So right off the bat, here is what it says:
Phone 29.3%
Screen 2.1%
Phone Radio 45%
Wifi Active 10.1%
Held Awake 2.6%
Bluetooth 0.0%
App Usage 11.1%
For Phone Radio, the Signal Strength from 1-5 has 2 listed as 72%
For App usage there's not much beside the kernel to report.
How does that help me? My reception at work is always iffy - but it's always been that way so that cannot be the culprit.
Pilgrimtozion said:
I've had my phone for quite a while now and played around with it a lot. Originally, I power cycled the battery, thinking it was the best thing to do. To my dismay, my battery barely lasted me through the day. No matter what I did, I could not get it to match what some other people indicated they get out of their battery - 35-40 hrs or more. I rooted, dimmed the display, installed JuiceDefender, uninstalled Juice Defender, unrooted, power cycled 3 or 4 times again...
...and then one day I woke up, probably three month into me having the phone, and the phone was amazing. I came home from work at 5 pm with 72% still on the battery. I was in heaven. Until a month ago.
A month ago, I accidentally let the battery run out completely. I had done that before (though I try not to) so I thought it wasn't a big deal. I hadn't installed any new apps or done anything differently, but now my battery will hardly last me through the day again. My once amazing battery is less then average again.
I've tried everything you normally read on forums. I have a good idea of how to save battery life - it's set to Maximum Battery Savings - and have tried all of the stuff that is typically recommended. I've not killed apps, but I don't think that would really help to begin with anyway.
So...here I am to ask if anybody has any other ideas for me. Anything at all? The thing is...I didn't change anything when my battery was cut down to less than normal size!!
Help?!?
Click to expand...
Click to collapse
Draining your battery until the device powers down isn't something to worry about. The battery can be "seasoned" when you first pull it out of the box by allowing it to drain until power down, then while still powered off, plug in your charger without powering the phone back up, and allowing it to charge fully, then power on/drain to power down/charge while powered off/power back on repeatedly three to four times. This is a common practice for some people (perhaps as neurotic about such things as myself) to make sure your battery is getting full charging cycles.
Partial charging cycles won't hurt anything either. For instance, you can charge fully, then at some point during the day, plug your charger in and charge it from say, 70& to 100% without any issues. The device has built-in programming that will not allow for overcharging, which some users seem to have concern about. That being so, you can plug in your phone, leave it charging (even while at 100%) for as long as you see fit without having any "overcharging" to the battery occurring.
Sounds like you do have a rogue app that is consuming battery, so that would be the first thing to investigate -as mtlion stated. There are some other steps that you can do, to ensure your battery is a full charge, as there are some instances where after flashing roms you can lose some of your battery reporting accuracy or even some battery life. But, see if you can track down which (if any) apps are consuming your battery, and that is an easy fix. Also, if you have questionable radio signal reception, that counld be a contributing factor as well. The phone will constantly look for a signal, and if it loses signal, start the scanning process until it can connect again. Though you may not have noticed this at first, this could also be the reason your battery consumption is so high.
If you experienced such a dramatic change in battery percentages after a full cycle, then could it be possible that the percentages were disoriented and you were mistaken into thinking you had a very high amount of charge left when you really didn't? It seems unlikely, but given the situation you described this fits.
Maybe you had the same battery performance all along, and the 70% showed when you were actually about to run out, but you never found out because you always charged before the bug revealed itself, and the bug was finally reset after your phone was drained.
I wish I could say that it was mistaken all along but I actually went two days without charging regularly. I'm trying to eliminate possibilities and so far have had a little bit of success. The rogue app does sound plausible.
So power cycling now really won't make a difference?
Pilgrimtozion said:
I wish I could say that it was mistaken all along but I actually went two days without charging regularly. I'm trying to eliminate possibilities and so far have had a little bit of success. The rogue app does sound plausible.
So power cycling now really won't make a difference?
Click to expand...
Click to collapse
If, after rooting or more likely that case after flashing a new rom, you often have battery reporting errors (as mentioned above), and re-calibrating the battery along with some steps I will outline for you below will ensure that your battery is getting a full charge, and the battery reporting accuracy is right on. As far as power cycling, I don't know that it does much good. I run my device in performance mode all the time, and with a CPU overclock of 1.25GHz and various tweaks, I have about a day an a half to a day and a quarter of full runtime from my battery. This is with moderate to heavy usage (calls, emailing, text, gaming, web browsing, etc.) so you should have no problems getting acceptable battery performance after following these steps:
1. Take the case off your Atrix 2 (one of the latter steps involves taking the battery out from the phone while it's plugged in. Make sure your case won't stand in the way.)
2. Install Battery Calibration app from the market
3. Plug in your Atrix 2 to charge while it's on, wait till it gets to a 100%
4. When the charge is 100%, open the BatteryCalibration app and lookup what the charge is in MV while at 100%. Write it down.
My Atrix 2 was showing ~3400MV while at 100%, which is definitely not the maximum capacity.
5. Discharge your Atrix 2 completely until it shuts off.
A good way of doing this quickly is by turning on wifi, and a video player.
6. Without turning on the phone plug it into a wall charger and let it get to 100%
7. When it's at 100%, without unplugging it from the wall charger, take off the battery cover, and take the battery out.
Your phone will "reboot" and show a Missing Battery icon.
8. Without unplugging the phone from the wall charger or turning it on, put the battery back in and wait until the phone recognizes the battery.
9. Your battery should now be recognized by the phone, and showing a charge % significantly lower than 100%.
Mine showed only 5%.
10. Let it sit there charging for 2-3 hours (or more).
My phone wouldn't charge past 10%, but yours might. The numbers don't matter much as the phone is definitely getting additional charge that could have been lost while flashing ROMs, etc.
11. After 2-3 hours (or more), turn the phone on while holding the volume down button and get into CWM.
Do not disconnect it from the charger still!
12. Wipe battery stats in CWM, reboot.
Do not disconnect it from the charger still!
13. When the phone turns on, go into Battery Calibration app again and look up your MV numbers -if you were like me, they should be significantly higher than before. After this whole process I had 4351MV at 100%, comparing to 3400MV before calibration.
Do not disconnect it from the charger still!
14. Before going to sleep - Install Watchdog Task Manager Lite from the market. Go into it's preferences, set CPU threshhold to 20%, check "Include phone processes", check "Monitor phone processes", check "Display all phone processes", set system CPU threshhold to 20% as well.
Do not disconnect it from the charger still!
15. Make sure your wifi and data connections are off. Now finally unplug the phone from the charger.
Go to bed, let your phone sleep too.
16. Success! Next morning check where your battery % is at and if you followed the instructions correctly / got lucky like me, your battery life should be 90% or more.
I went to bed with 98% and woke up to 94%. So, I consider this mission a success.
Does it make any difference whether I'm currently rooted or not? Cause I'm not...
Had the same issue and the only thing that really worked for me was to wipe the battery cache..... There are apps on the market but did not do the job well like this method.....
Fully charge phone
reboot with bootstrapper (recovery)
go to advanced menu
and then click wipe battery stats
Hope it works for you!!!!!
Pilgrimtozion said:
Does it make any difference whether I'm currently rooted or not? Cause I'm not...
Click to expand...
Click to collapse
The Battery Calibration app requires root permissions. You can always root using the "one-click-root" method, run the above steps, and then "click-to-unroot" using the .bat files within the root folder. It's easy, and takes no time at all to do so. But, it is all in how much fuss you want to put into solving your problem...
Once again it sounds like I need to root my device. Correct assumption?
hankbizzo5 said:
Had the same issue and the only thing that really worked for me was to wipe the battery cache..... There are apps on the market but did not do the job well like this method.....
Fully charge phone
reboot with bootstrapper (recovery)
go to advanced menu
and then click wipe battery stats
Hope it works for you!!!!!
Click to expand...
Click to collapse
Pilgrimtozion said:
Once again it sounds like I need to root my device. Correct assumption?
Click to expand...
Click to collapse
For the CWM Recovery wipe, yes you will need to be rooted.
Sent from my MB865 using xda premium
Rooted, wiped battery stats, and it went from less than 95% up to 98%. Interesting phenomenon. Thank you all heaps! I'll let you know if I run into any more issues.
Pilgrimtozion said:
Rooted, wiped battery stats, and it went from less than 95% up to 98%. Interesting phenomenon. Thank you all heaps! I'll let you know if I run into any more issues.
Click to expand...
Click to collapse
Glad you got things working!
Recalibrated battery this morning when my phone was fully charged. Not seeing much improvement, but I'm letting it run out and then charging it to 100%. Or should I actually be going through the 16 step process described above?
Pilgrimtozion said:
Recalibrated battery this morning when my phone was fully charged. Not seeing much improvement, but I'm letting it run out and then charging it to 100%. Or should I actually be going through the 16 step process described above?
Click to expand...
Click to collapse
You can try either, but calibration is obviously the less time consuming option. It may take a few "full charge to full drain" discharges to get the battery back to an acceptable capacity...
Sent from my MB865 using xda premium
Well, it's a few days later and nothing has made a significant difference. I've been using Badass Battery Monitor to find apps that use an exorbitant amount of battery, but even that has not made a great difference. I've deleted Instagram, a Bible app, a banking App, Temple Run (had a large Sensor Time used), but so far to no avail. It still shows that since I unplugged my phone less than 5 hours ago, the android system has a sensor time used of 1h57m - processes included are servicemanager, com.android.settings, and mid.
Battery Calibration has caused the max charge to be around 4350, but it has not impacted my actual battery life any. I drained it completely, recharged it, did that a few times, then just charged it when at 30-35%, nothing, nothing, nothing.
Any more ideas?
Nobody? At all?
Sent from my MB865 using xda app-developers app
Hello, forum
I'm running my OPO on PA 4.6. Over the past few weeks, the battery has lost calibration. It dies at 25% and remains at 100% for quite a while. How can I fix this? I'm open to wiping and reflashing.
Thanks
Raptor
Just try using a battery calibration app.
Transmitted via Bacon
timmaaa said:
Just try using a battery calibration app.
Transmitted via Bacon
Click to expand...
Click to collapse
Thanks for your response! The battery calibration app did the trick initially. However, a few days later, the issue seems to be returning. I've decided to just move on to Lollipop.
Once again, thank you.
Raptor
raptor402 said:
Thanks for your response! The battery calibration app did the trick initially. However, a few days later, the issue seems to be returning. I've decided to just move on to Lollipop.
Once again, thank you.
Raptor
Click to expand...
Click to collapse
did it help?
The same happens to me. I'm using the latest Sultan CM13. I'm trying to do a full recalibration - drain it until it refuses to turn on, keep it on the charger for 6+ hours without turning it on (black battery screen) and then repeat the procedure few times. I have some average success and the phone shuts down at about 10% instead of 50-60% but it doesn't seem to be perfectly calibrated just yet.
nitrobg said:
The same happens to me. I'm using the latest Sultan CM13. I'm trying to do a full recalibration - drain it until it refuses to turn on, keep it on the charger for 6+ hours without turning it on (black battery screen) and then repeat the procedure few times. I have some average success and the phone shuts down at about 10% instead of 50-60% but it doesn't seem to be perfectly calibrated just yet.
Click to expand...
Click to collapse
I'm not sure if you're aware, but you're doing some of the worst things you can do to a lithium battery. You should never completely discharge a lithium battery, and you should also refrain from keeping it at peak voltage (connected to charger once charging is complete). If you've done this a few times I'm not at all surprised that the thing shuts off at 10%, you're basically killing the battery and have depleted its overall health and life.
Heisenberg said:
I'm not sure if you're aware, but you're doing some of the worst things you can do to a lithium battery. You should never completely discharge a lithium battery, and you should also refrain from keeping it at peak voltage (connected to charger once charging is complete). If you've done this a few times I'm not at all surprised that the thing shuts off at 10%, you're basically killing the battery and have depleted its overall health and life.
Click to expand...
Click to collapse
I'm fairly sure that the battery has safety measures that prevents it from completely discharging or overcharging. When the battery is discharged, the phone actually turns on and says that the voltage is too low. Above 80% the phone also enters slow charging mode that takes hours to reach 100%.
Also, I'd rather kill my battery a bit faster (an original replacement battery costs just $10) instead of having a miscalibrated battery that could die whenever I need it.
nitrobg said:
I'm fairly sure that the battery has safety measures that prevents it from completely discharging or overcharging. When the battery is discharged, the phone actually turns on and says that the voltage is too low. Above 80% the phone also enters slow charging mode that takes hours to reach 100%.
Also, I'd rather kill my battery a bit faster (an original replacement battery costs just $10) instead of having a miscalibrated battery that could die whenever I need it.
Click to expand...
Click to collapse
Yeah, but by forcing it to drain until it won't turn on you're bypassing that safeguard. The safeguard is the phone switching off before you can discharge it too far. Your phone shouldn't take hours to go from 80% to 100%, that's another sign of bad battery health. If you keep doing these things the battery will be so bad that it will die completely randomly and at random percentages. By using these methods you're going to bring on much sooner the very situation that you're trying to avoid, only much worse. The correct way to calibrate a lithium battery is the following:
1. Charge to 100%
2. Discharge to 5%-10%
3. Charge to 100%
No need to force it to discharge further than is safe, no need to keep it on the charger longer than is necessary (which is pointless anyway), and it only needs to be performed once every month or so.
Heisenberg said:
Yeah, but by forcing it to drain until it won't turn on you're bypassing that safeguard. The safeguard is the phone switching off before you can discharge it too far. Your phone shouldn't take hours to go from 80% to 100%, that's another sign of bad battery health. If you keep doing these things the battery will be so bad that it will die completely randomly and at random percentages. By using these methods you're going to bring on much sooner the very situation that you're trying to avoid, only much worse. The correct way to calibrate a lithium battery is the following:
1. Charge to 100%
2. Discharge to 5%-10%
3. Charge to 100%
No need to force it to discharge further than is safe, no need to keep it on the charger longer than is necessary (which is pointless anyway), and it only needs to be performed once every month or so.
Click to expand...
Click to collapse
The device is turning on, just refusing to boot. You can't really bypass the safeguard, it is always there.
The slow charging phase after 75-80% is a normal function for all modern devices. You could check this review for more information.
I would do the procedure you are talking about but the reported 100% charge is not actually 100% until the device stays on the charger for hours. Otherwise it dies at 40-50% and refuses to boot up. Even if I charge it for hours, it would take a couple of hours or even a day for the battery to report below 100% charge. It could last an entire day with 100% charge and die at 50% the next day. I can never be sure what's the real charge of the battery, this is why I am willing to sacrifice a part of its life just to get a proper reading.
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Short charges tend to miscalibrate the battery... The phone was at 100% for about 24h, it will probably die at about 50%.
Using a battery recalibration works for me. However, every few weeks, I have to recalibrate the battery again. The recalibration process is pretty simple: recharge the battery to 100% and use the app. No need to drain the battery completely after that. Regular use fixes the battery over a few days.
raptor402 said:
Using a battery recalibration works for me. However, every few weeks, I have to recalibrate the battery again. The recalibration process is pretty simple: recharge the battery to 100% and use the app. No need to drain the battery completely after that. Regular use fixes the battery over a few days.
Click to expand...
Click to collapse
which app exactly? root needed?
Sent from my A0001 using Tapatalk
yuval48 said:
which app exactly? root needed?
Sent from my A0001 using Tapatalk
Click to expand...
Click to collapse
The app is Battery Calibration by NeMa. Root needed.
raptor402 said:
Using a battery recalibration works for me. However, every few weeks, I have to recalibrate the battery again. The recalibration process is pretty simple: recharge the battery to 100% and use the app. No need to drain the battery completely after that. Regular use fixes the battery over a few days.
Click to expand...
Click to collapse
so i tried it, but today my opo died at 19%.
how can you be sure that "Regular use fixes the battery over a few days"?
i mean, if today ill recalibrate, when(%) should i recharge? i cant be sure if the phone will die at 20%,10% or 1%..
I posted this somewhere a few days ago..
Turn the device off completely then plug it in. A battery indicator should appear on the screen. Don't turn the device on until it reads 100%. Once it's fully charged, power on the device and leave it plugged in until it's fully booted. All should be well.
Battery calibration apps are mainly for Android emulators on PC to get the Android "battery" indicator to match up with laptops. There are no benefits of running one on an Android device and will actually mess up the calibration MORE unless you use it in tandem with the steps above. Still pointless to use it, though.
Neroga said:
I posted this somewhere a few days ago..
Turn the device off completely then plug it in. A battery indicator should appear on the screen. Don't turn the device on until it reads 100%. Once it's fully charged, power on the device and leave it plugged in until it's fully booted. All should be well.
Battery calibration apps are mainly for Android emulators on PC to get the Android "battery" indicator to match up with laptops. There are no benefits of running one on an Android device and will actually mess up the calibration MORE unless you use it in tandem with the steps above. Still pointless to use it, though.
Click to expand...
Click to collapse
ok it seems to work, but when the battery reached 20+% is suddenly dropped down to 10% (also when i charged it, went up from 10% to 20%)
yuval48 said:
ok it seems to work, but when the battery reached 20+% is suddenly dropped down to 10% (also when i charged it, went up from 10% to 20%)
Click to expand...
Click to collapse
Do it, again. Sometimes it takes a few tries. Better if you let your device get down to ~20% then do it.
So last night my phone was at around 75% before heading to sleep, I woke up this morning to find, after turning it on (it was completely off) that it was at 10%. I did do an update several days ago, but I'm worried as my battery has been iffy lately. So my question is, has anyonr else experienced this and had it as an isolated issue that they didn't have to deal with again, or should I be worried about my battery? I've never seen anyone report this issue on an S7 before.
XDA won't let me post an image or link until I make 10 posts, so I can't post the graph, sorry. It just shows a giant gap for when it was off, and the line starting significantly lower than where it startrd before the graph.
thanks in advance
Must have water damage on your mother board ..due to which battery drain occurs ..in night mine only drains 1%
danysonu said:
Must have water damage on your mother board ..due to which battery drain occurs ..in night mine only drains 1%
Click to expand...
Click to collapse
I don't think it's water damage as I very rarely bring this thing around water. Also, it didn't happen last night, so that's good.
Put it down to the phone not fully powering off, and instead getting stuck in a SoD (Sleep of Death), used to happen with the ASUS Transformer a lot, looks like it's powered off, but it's still running and you end up with a dead battery the next day
*Detection* said:
Put it down to the phone not fully powering off, and instead getting stuck in a SoD (Sleep of Death), used to happen with the ASUS Transformer a lot, looks like it's powered off, but it's still running and you end up with a dead battery the next day
Click to expand...
Click to collapse
Interesting, does battery data not at all record during that point, as the graph suggests?
I should mention I was able to turn it on like normal in the morning.
Lalam24 said:
Interesting, does battery data not at all record during that point, as the graph suggests?
I should mention I was able to turn it on like normal in the morning.
Click to expand...
Click to collapse
It didn't with the Transformer, for all intents and purposes it thought it was off but was stuck in limbo, I think the CPU gets hammered during that time too as the battery would not drain almost fully by just leaving it on idle overnight
Being able to turn it on normally is different, but I guess it's a different device, I had to hold the power button of the Transformer to shut it off completely before powering back on if it hadn't 100% drained the battery, but generally it had (Both batteries, dock and tablet)
*Detection* said:
It didn't with the Transformer, for all intents and purposes it thought it was off but was stuck in limbo, I think the CPU gets hammered during that time too as the battery would not drain almost fully by just leaving it on idle overnight
Being able to turn it on normally is different, but I guess it's a different device, I had to hold the power button of the Transformer to shut it off completely before powering back on if it hadn't 100% drained the battery, but generally it had (Both batteries, dock and tablet)
Click to expand...
Click to collapse
Do I have any way of finding out if this was the cause other than assuming?
Lalam24 said:
Do I have any way of finding out if this was the cause other than assuming?
Click to expand...
Click to collapse
None that I know, if it was still in that state a logcat might help but chances are it is not in any state that would be logging anything tbh
Other possibility is a bad battery, but seems strange it would happen when the phone was off, but I guess anything is possible if the hardware is faulty
The gap in the battery stats graph is normal when you turn the phone off, as the graph is showing time scales, you leave it off for 8 hours there will be an 8 hour time gap, happens with mine when I turn it off too
*Detection* said:
None that I know, if it was still in that state a logcat might help but chances are it is not in any state that would be logging anything tbh
Other possibility is a bad battery, but seems strange it would happen when the phone was off, but I guess anything is possible if the hardware is faulty
The gap in the battery stats graph is normal when you turn the phone off, as the graph is showing time scales, you leave it off for 8 hours there will be an 8 hour time gap, happens with mine when I turn it off too
Click to expand...
Click to collapse
I know the gap is normal, just the gap with the huge difference in percentage from each sidr is what I'm talking about.
Anyway thanks for the suggestion, still curious to see if this ever happened to anyone else and they just didn't report it.
Lalam24 said:
I know the gap is normal, just the gap with the huge difference in percentage from each sidr is what I'm talking about.
Anyway thanks for the suggestion, still curious to see if this ever happened to anyone else and they just didn't report it.
Click to expand...
Click to collapse
Yea the huge % drop is definitely not normal, even left turned on with all radios enabled wouldn't do that, screen being on the whole night would be about that sort of drain I'd say, you can get 9+ hours SoT if you don't use the phone and just leave it on doing nothing but as it was turned off I can only think bad battery or SoD
Hope you find the cause, or it was a one off and behaves from now on
*Detection* said:
Yea the huge % drop is definitely not normal, even left turned on with all radios enabled wouldn't do that, screen being on the whole night would be about that sort of drain I'd say, you can get 9+ hours SoT if you don't use the phone and just leave it on doing nothing but as it was turned off I can only think bad battery or SoD
Hope you find the cause, or it was a one off and behaves from now on
Click to expand...
Click to collapse
This isn't entirely on topic but why would the battery graph ever start at a point that isn't 100%? That happened to me today after turning it on in the morning, and the totals only add up to the amount used below 48%. Someone said it's from restarting or turning the phone on and off, but I thought that just showed a gap in the graph.
Sorry for the sort of irrelevant question, you seem to know what you're talking about and I see no point in starting another topic for the question.
Lalam24 said:
This isn't entirely on topic but why would the battery graph ever start at a point that isn't 100%? That happened to me today after turning it on in the morning, and the totals only add up to the amount used below 48%. Someone said it's from restarting or turning the phone on and off, but I thought that just showed a gap in the graph.
Sorry for the sort of irrelevant question, you seem to know what you're talking about and I see no point in starting another topic for the question.
Click to expand...
Click to collapse
The battery graph would only show 100% if the battery was 100% full when you powered it on, so basically the Y axis (vertical) shows battery full %, the X axis (horizontal) shows a time scale since last charge, which is why you get the gap when you have the phone off for a while
The app usage % is confusing, it doesn't always add up to the % that is missing from a fully charged battery, rather what % of the charge used since it started using the battery this session / charge, so if the phone has been off for a while with say a 50% charge, then powered on, you might see the app usage starting fresh with only a few % per app which won't add up to the missing 50%, and also if you partially charge the phone for arguments sake to 75% from 50%, then remove the charger, that can also reset the app usage % as it shows the usage since being on battery power only
That said, the above doesn't always ring true, I've just had my phone on charge for 30 mins, now at 76%, I rebooted the phone and removed the charger and the app usage stayed the same, not sure what circumstances are needed to reset the app usage % but I've seen it happen after partial / full charges, and also having the phone off for a period of time
*Detection* said:
The battery graph would only show 100% if the battery was 100% full when you powered it on, so basically the Y axis (vertical) shows battery full %, the X axis (horizontal) shows a time scale since last charge, which is why you get the gap when you have the phone off for a while
The app usage % is confusing, it doesn't always add up to the % that is missing from a fully charged battery, rather what % of the charge used since it started using the battery this session / charge, so if the phone has been off for a while with say a 50% charge, then powered on, you might see the app usage starting fresh with only a few % per app which won't add up to the missing 50%, and also if you partially charge the phone for arguments sake to 75% from 50%, then remove the charger, that can also reset the app usage % as it shows the usage since being on battery power only
That said, the above doesn't always ring true, I've just had my phone on charge for 30 mins, now at 76%, I rebooted the phone and removed the charger and the app usage stayed the same, not sure what circumstances are needed to reset the app usage % but I've seen it happen after partial / full charges, and also having the phone off for a period of time
Click to expand...
Click to collapse
I was about to say I didn't have this thing plugged in at all last night until I got to the end.
Either way the gaps in the graph suggest you can see it at 100% on the graph regardless of whether or not it has 100% when you turned it on. That's actually almost always what I see, or rather, up until last night I don't recall ever seeing the graph not start at 100%. Then again with the other battery issues I may just be noticing more now.
So to clarify, you've seen the graph start fresh, from a percentage other than 100, after not having charged it, correct?
Lalam24 said:
I was about to say I didn't have this thing plugged in at all last night until I got to the end.
Either way the gaps in the graph suggest you can see it at 100% on the graph regardless of whether or not it has 100% when you turned it on. That's actually almost always what I see, or rather, up until last night I don't recall ever seeing the graph not start at 100%. Then again with the other battery issues I may just be noticing more now.
So to clarify, you've seen the graph start fresh, from a percentage other than 100, after not having charged it, correct?
Click to expand...
Click to collapse
No not the graph, the app usage % under the graph resets after charging / powering off for a time
The battery level graph will remain at the level the battery is at no matter what I do with it
It doesn't start at 100% unless the battery is 100%, which is the way it should be as that right side axis is battery % level, wouldn't make sense to have it start at 100% if it was only 50% charged so not sure what's happening with yours
*Detection* said:
No not the graph, the app usage % under the graph resets after charging / powering off for a time
The battery level graph will remain at the level the battery is at no matter what I do with it
It doesn't start at 100% unless the battery is 100%, which is the way it should be as that right side axis is battery % level, wouldn't make sense to have it start at 100% if it was only 50% charged so not sure what's happening with yours
Click to expand...
Click to collapse
For me it's always once I charge it to 100% completely, that's the point the graph starts at and remains that way until I recharge it to 100% again. For example, another member of my family's s7 edge's graph, about a week ago, lasted for about 80 hours while only being charged to 100% once, those 80 hours ago. So it was put on the charger several times throughout but never reset the graph at those points. Then once it was charged to 100% again, it reset the graph. So I'm not saying it's suggesting I'm at 100% when I'm at 50%, but rather that it gives me usage history, on the graph, from the last 100% almost all of the time, and just shows gaps when I turn it off.
So that's why I was confused. What does your graph start at right now, out of curiosity?
Lalam24 said:
For me it's always once I charge it to 100% completely, that's the point the graph starts at and remains that way until I recharge it to 100% again. For example, another member of my family's s7 edge's graph, about a week ago, lasted for about 80 hours while only being charged to 100% once, those 80 hours ago. So it was put on the charger several times throughout but never reset the graph at those points. Then once it was charged to 100% again, it reset the graph. So I'm not saying it's suggesting I'm at 100% when I'm at 50%, but rather that it gives me usage history, on the graph, from the last 100% almost all of the time, and just shows gaps when I turn it off.
So that's why I was confused. What does your graph start at right now, out of curiosity?
Click to expand...
Click to collapse
Starts at 100% because that's when I took it off charge last night
Yea I think I know what you mean, if you don't fully charge it'll continue the graph from whatever charge level it is at once you remove the charger, happens here too if I don't charge for long, but lets say from 10% > 70% and remove the charger and it'll reset the app usage % but the graph level will remain at whatever % the battery is unless I power off for a length of time, then it'll act like a new fresh charge as seen here (No charging ramp before the 100% level 12 hours ago)
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*Detection* said:
Starts at 100% because that's when I took it off charge last night
Yea I think I know what you mean, if you don't fully charge it'll continue the graph from whatever charge level it is at once you remove the charger, happens here too if I don't charge for long, but lets say from 10% > 70% and remove the charger and it'll reset the app usage % but the graph level will remain at whatever % the battery is unless I power off for a length of time, then it'll act like a new fresh charge as seen here (No charging ramp before the 100% level 12 hours ago)
Click to expand...
Click to collapse
The graph seems to randomly reset on its own sometimes when you restart/turn off and on the device every now and then, no charger needed, which is what happened to me the other night, and what apparently occassionally happens to someone on androidcentral. I guess my real question is what's the point of the set up, and is there a consistency to it we're not seeing?
*Detection* said:
Starts at 100% because that's when I took it off charge last night
Click to expand...
Click to collapse
Anyway, thank you for all of the help and answering all of my probably useless question
Howdy...
Today I finally took the OTA to Pie.
And when I plugged my phone this evening I got a Notification about Sony Battery Care, which told me it'll charge my phone slowly.
Whyever it wants to charge until 03:40 in the morning, when my alarm clock is clearly set to 6:30 is a mystery to me.... But whatever Sony.
As it seems it was bugged on Oreo for quite a few people. Did it work for you guys?
I'll do a little testing and check how the charging progress is working now. Next time I'll try to discharge to 1% and charge fully over night. While measuring current and voltage externally. So we can compare to normal charging.
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Edit:
Well.... seems like it breaks really really easily.
After i got this Notification on the Lockscreen i got a call from a friend and unplugged the Phone.
When i was done, about 5 minutes Later i've replugged the phone but BatteryCare didn't want to start again.
Not only didn't it come back that time, i haven't seen the notification since then! Not even once. It simply vanished for good.
So does anyone of you ever use Battery Care? Even on a regular schedule?
Nice wallpaper
Edit:
Well.... seems like it breaks really really easily.
After i got this Notification on the Lockscreen i got a call from a friend and unplugged the Phone.
When i was done, about 5 minutes Later i've replugged the phone but BatteryCare didn't want to start again.
Not only didn't it come back that time, i haven't seen the notification since then! Not even once. It simply vanished for good.
So does anyone of you ever use Battery Care? Even on a regular schedule?
I never saw it.
Even on Oreo.
(I use it since May).
But I only charge it at day until 80% with accubattery.
Yeah battery care doesn't kick in again if you remove it from charge before it's finished. Although I had this with oreo also so I'm kind of used to it.
Who cares about that ? Not me
I don't use Sony battery care, I don't trust it.
But my charger is connected to a programmable wifi plug. It switches on at 5 a.m. Thus, when I wake up, my device is fully charged.
Of course, the aim is to keep the battery level above 90% as short as possible...
So we don't even have a single positive response of it working as advertised?^^
That's pretty sad for Sony.
If you plug and unplugged your device a few times each day or at different hours once a day it won't work.
For example, plug your device between 22h and 23h everyday, after a few days, battery care will turn on.
Envoyé de mon H8266 en utilisant Tapatalk
Well yeah.... sorry i plug my device between 21:00 and 02:00 every 2nd day but i always unplug at 6:50 so AI is too stupid to recognize this scheeme?
Haldi4803 said:
Well yeah.... sorry i plug my device between 21:00 and 02:00 every 2nd day but i always unplug at 6:50 so AI is too stupid to recognize this scheeme?
Click to expand...
Click to collapse
AI are generally somewhat stupid!
Battery care works flawlessly for my xz2.
Each and every night as soon as I connect the charger i get an annoying notification/message sound.
The notification is battery care, I would never get a notification sound before pie. I hope in the next update the sound is again muted.
Should I make my Battery Care learn my habit?
Hershchel Clogs said:
Any time you reverse the charge current is one cycle. How far down you discharge is your depth of discharge. So even if you drain the phone from 80% to 70% and plug it in and only charge it back up to 80%, that's one cycle. What you are saying would be true if you don't discharge the battery at all, similar to what Sony does with their battery care. You can charge lithium in short bursts but if you discharge between those charges then you are cycling your battery. So no, short incomplete charges aren't absolutely detrimental to your battery but will be considered in regards to your overall cycle life. For every 70 millivolt (roughly 10%) drop in voltage during a cycle, your overall cycle life is cut in half. Meaning you'll get twice as many cycles if you only drain your phone to 60% instead of 50%. To take full advantage of the chemistry, it is best to fully charge before discharging. You could expect 2500-3000 cycles at 10% depth of discharge, but only 500-700 or so at 50% depth of discharge before capacity is 70% of what it's rated. This is information I got from Cadex Labratories and deal with on a daily basis at work.
Click to expand...
Click to collapse
Should I follow this suggestion? Or keep small cycle of charges by using accubattery suggestion to plug off when I reach 80%?
Or should I just teach my Battery Care to learn my overnight charging habit and then make use of it when I can? (ie turning it off when I make small charge on the afternoon)
Xperia1 has the revamped battery care settings in which people can input their desired time for the feature to work.. I hope they update ours to work the same way....
Sp12er said:
Should I follow this suggestion? Or keep small cycle of charges by using accubattery suggestion to plug off when I reach 80%?
Or should I just teach my Battery Care to learn my overnight charging habit and then make use of it when I can? (ie turning it off when I make small charge on the afternoon)
Xperia1 has the revamped battery care settings in which people can input their desired time for the feature to work.. I hope they update ours to work the same way....
Click to expand...
Click to collapse
You can use the app "battery charge limit"
It just deactivates the charging at the desired hysteresis.
Keep in mind that the discharge is slightly higher with a connected USB device, because only the charging is deactivated, not the USB port.
(Needs root)
I charge every of the devices I maintain since years to 80% and the battery is still fine.
For me battery care works fine, i plug muy Xz2 at the same hour every night, so i dont have complains
I don't know when they added it, but you can finally set a custom Time
Fkn AI Learning didn't work at all...
And it seems to work pretty fine
Battery care not detected time in xperia xz1 G8342
My Xperia xz1 battery care not detected time. many times I am trying but it not working.