Battery 100% fix by kernal - Nexus S General

This kernal will make the nexus s charge to 100% with the screen off, thanks to peter alfonso, I have tried it and it works great with good battery life.
www.peteralfonso.com/2011/11/download-nexus-s-263514-kernel-update.html
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It's not a fix, number is just cosmetic your nexus will still charge to 96%... It's just a tweak

dinuweera said:
This kernal will make the nexus s charge to 100% with the screen off, thanks to peter alfonso, I have tried it and it works great with good battery life.
Sent from my Nexus S using XDA App
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If I'm not mistaken, the "charge to something about 96%" is a safety measure to increase the lifetime of the battery? Why would one want to push those last few % and lower the lifetime?

dinuweera said:
This kernal will make the nexus s charge to 100% with the screen off, thanks to peter alfonso, I have tried it and it works great with good battery life.
www.peteralfonso.com/2011/11/download-nexus-s-263514-kernel-update.html
Sent from my Nexus S using XDA App
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most the other kernels include it now also. and it is just a cosmetic fix.

I just don't understand if it's such a safety features why does NO other phone do it?
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Other phones should do it... Just like why you shouldn't keep your laptop constantly plugged in... It'll kill your battery a lot faster
Sent from my Nexus S 4G using xda premium

Battery works great but first error is NFC not working ...

lilgrass71 said:
Other phones should do it... Just like why you shouldn't keep your laptop constantly plugged in... It'll kill your battery a lot faster
Sent from my Nexus S 4G using xda premium
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All Android phones have this "charging safety feature".
Unless you plan on using the same battery and phone for the next ten years, you are highly unlikely to notice any degradation in the battery health. I have been using one of my OEM Samsung Nexus batteries for 2 years now (it is the same battery that came with my Samsung Moment and used on an Instinct HD as well). This particular battery has been topped off on all three phones and external chargers probably 100's of times. It still charges to a full 4.19v and stays full even sitting on my nightstand for a week or two.
The "Safety mechanism" in the charging code that has been brought up over and over again is included in all Android phones. It is nothing new. The problem is that in other devices, the battery meter reads 100% when it reaches the safe full level at the batteries temperature (usually between 4.188 and 4.190). The Nexus S has an error in the driver code that causes the meter to read inaccurately(95-98%) even when the voltage reaches 4.19. I don't believe Google did this intentionally, as it would cause many misinformed people to constantly bump charge their batteries in hopes of reaching 100%. It would have made more sense to have the meter read 100% at the safe full level.
In any event, the fix for the issue is here, and already being applied to some Nexus S kernels, including the one in the OP. It's not just "cosmetic".
https://github.com/pawitp/android_ke...cb36c33c2c3234

Bought my nexus s day one and it charges to 93%. I've noticed turning wifi on after plugging it in to charge does boost it to 98. But I always leave wifi off overnight. Don't want pesky google plus emails waking me up lol.
Overall, after nearly a year of use I'm happy with the battery life of my phone. You get used to how far you can push the phone in daily use and which settings to use.
Sent from my Nexus S

Related

Battery life stinks...

Hey guys what is up. I'm just wandering.. my Droid is brand new. Got it 2 days ago. Today I had to recharge my battery twice. I did use it a lot... so that may be it.. and when I didn't use it the battery life stayed the same for as long as I didn't touch the phone. Is my battery good? I got the app that tells me the temperature and everything. The hottest was 112F. It says my battery health is "good health". Will my phone hold a charge for a longer period of time after it has been charged then drained... and repeated. Does it just need to be broken in? Thanks for reading this whole essay I wrote you guys.. Haha. Well thank you so much again... and if you can please get back to me as soon as possible that would be great!
- Steven
Sent from my ADR6300 using XDA App
You should really search a little bit before you post. There are COUNTLESS threads on battery life.
Your best bet, until HTC fixes it, is to charge until the phone says you're at 100%, then turn it off and charge until the LED turns green. Charging and discharging really won't affect anything - their is no "memory" with their batteries.
Okay, thanks for the quick response. I appreciate it. Sorry. I should've read.. I was just a bit anxious. My apologies.
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You could always trying running one of Hydra's Kernels as well. I don't know if anyone has gained better battery life because of doing so... I use his kernels for the features.
DeeBG said:
You could always trying running one of Hydra's Kernels as well. I don't know if anyone has gained better battery life because of doing so... I use his kernels for the features.
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Click to collapse
stock speed undervolt is the way to go. I found battery improvement. Hydra Kernels are the way to go.
Hydra Stock Speed Undervolt Kernel
What is that? Do I get it in the app store? My battery is getting pretty warm now.. even when I touch my screen I feel it.
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When I click The link on my incredible it gives me an error when I download it. How do I run it and or make it work?
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steveng93 said:
When I click The link on my incredible it gives me an error when I download it. How do I run it and or make it work?
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What's the error?
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tcberg2010 said:
What's the error?
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Click to collapse
It's a a force close with some other words I forgot.
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It says that its just an updater.
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Check Settings > About phone > Battery and make sure up time and awake time aren't the same.
If they are the same, it means something is keeping your phone awake when the screen goes off, which drains battery.
I just got my Droid Incredible a few days ago too, and I knew coming into it that the battery life has issues from a lot of users, but man, it really sucks!
I have it fully charged at 8am, and by 3:30 (with very moderate use), it's already at 20%. I've disabled everything I can (WiFi, Bluetooth, GPS, live wallpaper, installed ATK and keep my tasks at none, etc), and still the same.
I really love the phone (it's amazing other than battery), but the battery life is such a big deal for me that I am really thinking about returning it and waiting for the Samsung Fascinate to come (hopefully sooner than later). Thankfully I have until Aug 30 to call Verizon and return the phone... i sure hope the Fascinate gets a definite release date by then.
I'm going to try the full charge + phone off + charge again to see if that improves things, but other than that, does anyone recommend the Seidio 1750mAh battery or the HTC Touch Pro2 OEM (1500 mAh) battery? Does it make that much of a difference?
I read the findings on batteryboss.org, and it appears that the TP2 battery was better but the Seidio battery they tested was a used one, so it wasn't a fair comparison.
Any thoughts/help would be greatly appreciated. Thanks.
Loose atk....and read. I get a full 18 plus hours and I don't bump charge. Lots of info out there
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I purchased a 2150 mah battery from verizon and i can say I wont be having battery issues.. that is one option, but you wont find a case that fits your phone, that is the only downfall
I was just reading reports about the new Facebook app...looks like they are working on that fix if you use that and it is causing a battery drain
http://www.androidcentral.com/facebook-confirms-battery-drain-latest-android-update
Uninstall the 1.3.0 facebook app RIGHT AWAY if you downloaded it. That destroyed my battery life yesterday and I have never had battery problems with my DInc.
You can just use the regular HTC Facebook app until an update is released for the facebook for android.
Try it without the new facebook for a day and see if it changes.
If you don't have the facebook app then just make sure bluetooth, gps, wifi are off when you aren't using them. I recommend trying bump charging but I've never personally and my phone lasts about 26-28 hours+ with mild to heavy usage depending on the day.
-Flawless
Thanks for the replies..I don't use Facebook so that wouldn't be my problem.
I think ATK is good.. I mean I don't have it on auto so I sometimes just kill all tasks and I have noticed any decrease from the already poor battery performance.
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Ionno what it is but I'm running froyo 2.2 n I Thot this issue would be addressed but still nothing.. I'm hoping the VZW push will address it... I get decent battery life when I charge fully then turn off then plug back in til light turns green but its a pain in the ass to do dat.. I believe my awake time is like 3-4 hrs with an uptime of like 18-19 hrs
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I have a Sedio 1750, which I bump charge every morning, and UltimateJuice set to turn on APN every 5 min for 30 sec or until data transfer is done. WiFi is used whenever possible and otherwise turned off.
I easily make it through the day and have battery to spare with moderate to heavy use.
All the battery life horror stories make me wonder what everyone is doing differently. Haha
Lots of OJ Simpsons in this thread...
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Phone battery drains quickly

Recently I've noticed my phone dropping percentages within minutes, I've been on my phone for about 30 min just moderately surfing the web and it has dropped almost 30 percent. I tried juice defender, although it seemed it
worked somewhat it was really messing with my data connection. Anyone else experiencing this issue?
Sent from my SGH-T959 using XDA App
Also my display is using 59% of the battery consumption but I have it turned all the way down.
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I had this same problem until I reflashed my rom it must have been some background application which rom are you using I didn't have this issue with the stock rom btw
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As of right now I'm just rooted with the update.zip, I did lag fix but unlag fixed shortly after. Didn't have this problem when I was stock battery actually listed a good amount time.
There are bugs with the displayed battery % not being accurate. Especially if you power down the phone while it's charging.
My Vibrant just eats battery by the minute... I am honestly not sure what is going on. IT's 2.30pm and I barely used the phone and it's down to 53% now from 9am.
What can I do to fix this? I have rooted and installed lag fix from this link
I had the same issue before applying ryanza one click lash fix. My battery now lasts aboutlag 2 days. Which lag fix did you apply ?
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I know this doesn't help... but my phone is stock and with normal battery management practices I'm not having any real problems... However, I'm really used to my blackberry which could be left on forever without using any battery at all.
trunkstar1 said:
I know this doesn't help... but my phone is stock and with normal battery management practices I'm not having any real problems... However, I'm really used to my blackberry which could be left on forever without using any battery at all.
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Yea compared to my last two smartphones, the vibrant battery life is no worse. It's definitely better than the n900. But no smart phone's battery life has compared to my blackberry's I used to use.
Chalup said:
Yea compared to my last two smartphones, the vibrant battery life is no worse. It's definitely better than the n900. But no smart phone's battery life has compared to my blackberry's I used to use.
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N900 to vibrant and man what a difference. N900 battery life was absolutely horrible.
reaton33 said:
I had the same issue before applying ryanza one click lash fix. My battery now lasts aboutlag 2 days. Which lag fix did you apply ?
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I reset the phone and applied the raynza lag fix. I'll test it out and see how battery reacts. Thanks!
Fix permissions via recovery! Drain your battery till power down and recharge it fully while off if possible.
Vibe the XDApp
I had this issue. Turns out my battery had swollen due to over heating. Excessive use while on the charger. In the end, it would take 7 hours to charge 80%. Hence why it was on the charger.
Doesn't sound like you have the same issue. But of you start experiencing charging issue coupled with rapid draining get the barry replaced. No issues anymore.
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All~G1 said:
Fix permissions via recovery! Drain your battery till power down and recharge it fully while off if possible.
Vibe the XDApp
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Click to collapse
fixing permissions will fix the battery life?
Wow I didn't realize I butchered my typing lol. I was at work and trying to type fast on swype. I'm not all that good yet.
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tarantula78 said:
I had this same problem until I reflashed my rom it must have been some background application which rom are you using I didn't have this issue with the stock rom btw
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How do you go about flashing difffrent roms?
Battery still draining quickly' fully charged and my nephew played ko boxing four maybe 30min and my phone was at 75%. Now I'm at work all day since using the phone for maybe 10m total and I'm at 42%. So basically 40m of use and 9 hrs of stand by I'm at 42%. I also g have everything off. Screen dimmed to 10 via night dimmer app. Could an ebay charger do this because mt car charger I got was from ebay.
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newblue1234 said:
Battery still draining quickly' fully charged and my nephew played ko boxing four maybe 30min and my phone was at 75%. Now I'm at work all day since using the phone for maybe 10m total and I'm at 42%. So basically 40m of use and 9 hrs of stand by I'm at 42%. I also g have everything off. Screen dimmed to 10 via night dimmer app. Could an ebay charger do this because mt car charger I got was from ebay.
Sent from my SGH-T959 using XDA App
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i been having the same problem since i have rooted my device i dont know what else to do.... i am getting a new battery next week lets see how that works out. but i don't think its the battery

Nexus S battery

Hi did anyone experiance this kind of battery consumption? 3days 14hours and 45min and still have like 7%?
Not personally, I use my phone too much to get that kind of life out of it. Based on what I know about the drain when it's screen off and sleeping, though, I think it's well within the realm of possibility with light use.
I get like 24 hours out of mine... with some light-moderate use... used to be better when I bought it but then after installing some apps it just starts degrading a bit I guess
Well, rechargable batteries do degrade over time, and the more apps you have on a device, generally the less time it will last on battery, partially because those that run in the background consume more system resources and partially because those that update data in the background will keep your phone "awake" more of the time.
If I wasn't using my phone and just let it idle (sync on, airplane mode off) I'd get like 12 days of battery life. That's what I like about the NxS, unlike other smartphones it does actually last longer when not used.
hi
i am getting around 10 to 12 hours. wifi always on. mostly watching youtube videos. netbrwosing. gaming.
2g phone calling
still i think i am getting reasonably good back up
Disabling wifi,gps,bluetooth and reducing screen brightness will improve battery life.
faceoff007 said:
Disabling wifi,gps,bluetooth and reducing screen brightness will improve battery life.
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Click to collapse
So will removing the battery and placing it next to the phone.
My wife and I both have the Nexus both with battery issues never charging to full 100% always get 95% max. New phones. Battery usually lasted 10 to 12hrs
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ErlyD said:
My wife and I both have the Nexus both with battery issues never charging to full 100% always get 95% max. New phones. Battery usually lasted 10 to 12hrs
Sent from my Nexus S 4G using XDA Premium App
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That's no issue, but working as intended.
Other phones are using the same technique, but they are hiding it by showing the 100% the phone never reached, that's why they drop to 95-97%ish right after unplugging and from there drain normally.
I experienced battery drowning after using app's like maps or latitude. I had to kill them manually, now I'm cleaning the phones memory regularly. That safes a lot of battery life for me on the one hand, but on the other hand loading app's isn't as fast as before.
It's the classical trade-off between battery life an usability. And 10-12 hours are normal for me if I'm using my phone a lot.
rentaric said:
That's no issue, but working as intended.
Other phones are using the same technique, but they are hiding it by showing the 100% the phone never reached, that's why they drop to 95-97%ish right after unplugging and from there drain normally.
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Click to collapse
Just read about it searching. It's a safety setting. Surprised none of the galaxy s phones had this on. I had epic4g before.
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ErlyD said:
Just read about it searching. It's a safety setting. Surprised none of the galaxy s phones had this on. I had epic4g before.
Sent from my Nexus S 4G using XDA Premium App
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Well, depends on the manuf. if they want to "hide" it or not, they could also set 95% capacity as "100%" displayed. All batteries got a safety feature of some kind
20 hours of hardcore use here
Can't be too hardcore, display lasts 4.5h max
Sent from my Nexus S using XDA App
kbshowtyme said:
20 hours of hardcore use here
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same here.
never rooted or installed a custom rom.
in 2g idle it lasts ~14days
9 to 13 hours ,was looking at getting maybe better battery but dont think theres one
So 95% is the new 100% because my phone won't charge to 100%. It just stops at 95%.
Sent from my Nexus S 4G using XDA Premium App
rentaric said:
Well, depends on the manuf. if they want to "hide" it or not, they could also set 95% capacity as "100%" displayed. All batteries got a safety feature of some kind
Click to expand...
Click to collapse
I did not know that was built into the battery thought it was the phone that controlled that. Thanks for info. I'll see what these ebay batteries I purchased for $10 from china do. Should be getting them soon.
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Battery drain while phone is off

For the love of god i can't understand why my Nexus 4 battery is draining while it's off! Sometimes i use my iphone 5 , and always charge the Nexus 4 in case i wanna use it,i know it's already charge. 2 days ago i let the Nexus 4 completely charge, today i power up the phone and the battery was at 14%. It happened a couple times but was always thought ah maybe i left it on or something, this time i made sure the phone was off, but battery still drains... Im on stock rom never rooted, using Nexus 7 charger... Any idea on what could be the problem?? Thx in advance!
Sent from my iPad 4G
Maybe a bad battery?
Sent from my SCH-I605 using Tapatalk 2
I mean i don't have battery problem at all when i'm using it.... It's just when the phone is not in use and off it's still drains battery like it was on... I can understand something like that happening if the phone was off for a long period of time but 2 days 14% left while off seems ridiculous!
Sent from my iPad 4G
Try using the same cable and charger. Make sure Facebook isn't running or any apps that can drain your battery. Facebook killed my battery with no data connection
Sent from my Nexus 4 using xda premium
I just sent my first Nexus 4 in for RMA on this very issue, got the replacement on Friday, did a charge cycle, charged the phone fully up whilst off, took it off the charger (the official Nexus charger btw), and let it sit for the last day, just turned it on, and it's at 60%.... W T F !!!
This is sooo totally bizarre! I can only assume that this is common to most Nexus 4 (what are the odds of me getting two bad ones - direct from Google - with the exact the same issue?), and that people just aren't noticing, as most people don't leave their phones off after fully charging, and thus just never notice, as the battery behaves perfectly normally under usual use.
I would gratefully appreciate it if people could put this to the test, so I know whether or not to RMA the second device or not....
Was the phone powered down, or just sleeping? Any programs set to auto sync? Check for wakelocks?
Sent from my Nexus 4 using xda app-developers app
Did you use the same charger with both phones?
Sent from my Nexus 4

Update issues : charging forever

Before the update I was able to fully charge my phone in 2 hours, after update I've been plugged in since 6:30 and have only increased by 15%...
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astang99 said:
Before the update I was able to fully charge my phone in 2 hours, after update I've been plugged in since 6:30 and have only increased by 15%...
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Mine is charging normal with the new update...
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bri315317 said:
Mine is charging normal with the new update...
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When did you come over from the G2?
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Monday
Gonna hold on to the G2 as I really do like it and to sustain my flashing addiction.
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bri315317 said:
Monday
Gonna hold on to the G2 as I really do like it and to sustain my flashing addiction.
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Nice man! What made you get a Note 3 on top of your G2?
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Weird how long would it take to charge before the update?
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astang99 said:
Weird how long would it take to charge before the update?
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My charging is no different than before. Maybe 5% per 10 min.
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---------- Post added at 03:30 AM ---------- Previous post was at 03:28 AM ----------
WizeGuyDezignz said:
Nice man! What made you get a Note 3 on top of your G2?
Sent from my SAMSUNG-SM-N900A using xda premium
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Click to collapse
I really missed the AMOLED screen, that was the biggest reason
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I'm not having any issues charging. I also charge my phone at night while I sleep.
You should let your phone die at least once a month, then charge it all the way to 100%
With the phone turned off. I promise you will get the best life out of your battery. Good Luck MF.
LuckyColdJohnson said:
I'm not having any issues charging. I also charge my phone at night while I sleep.
You should let your phone die at least once a month, then charge it all the way to 100%
With the phone turned off. I promise you will get the best life out of your battery. Good Luck MF.
Click to expand...
Click to collapse
No.... Just, no.
Same problem
I had the same problem, I think I have to buy a new battery
A couple of things...
When applying an update on Android platforms, the battery stats are usually wiped, this results in wonky battery drain and charging indications and it usually lasts a few days to as long as a week.
So, the short story is, see if it doesnt correct itself after a week.
On occasion, Android updates dont quite go right and regardless of how Google 'intends' for updates to go, 25% of the time, youll end up doing a factory reset after a firmware update (poor performance, new error messages, wonky power issues including higher than normal battery drain and slow charge rates).
Again, the short story is, after a week, if it hasnt corrected itself, Id suggest a factory reset, then give it another week to see if the battery issue corrects itself. Obviously, realize that if during that week you install anything new that this could affect your battery life. I personally try to keep my phone as stock as possible and disable as many stock apps that I know Ill never use (my Note 3 is at around 25 stock apps disabled and Ive only installed 15 of my own apps, none of which would likely have a negative impact on battery).
Best practices for the proper care and feeding of Lithium Ion batteries is pretty straight forward. There are alot of myths out there from Nickle Cadmium batteries that just dont hold true for our current generation of batteries.
1. Whenever possible, keep the battery charged. If you have an outlet available, plug your phone in, regardless of whether its fully charged or not.
2. Try to keep your battery / device in typical room temp environments (ie a temp range of 60-85 degrees F). Obviously, this isnt always possible but dont intentionally leave a battery / device sitting on the dash in your car in direct sunlight (direct sunlight can raise the temp by as much as 25 degrees higher than the actual ambient temp), dont put your battery / device on top of a heater, etc.
3. Drain the battery periodically (referred to as a full discharge*), currently, the rule of thumb is once every 3 months and re-charge with the phone OFF, once the phone has a 100% charge (use the volume rocker to see the current charge without having to boot the phone), unplug the charger, THEN boot the phone. This gives Android a chance to see what a full discharge and charge should be (and cycles the battery giving the electronics inside the battery a chance to see the same discharge / charge).
* Note that a full discharge in todays components is when a device shuts itself down when on battery power due to lack of power in the battery to continue operating said component without damaging the battery or the component any further. Do NOT continue to turn the device on after it shuts down in this manner without first plugging external power into the device as this will likely dramatically shorten the life of the battery.
The last rule is most important..
4. IMPORTANT! Use your device like you normally would. The above three are tips for making a battery last as long as possible but when and if your phone makes you change how you live your life to any degree of extremes, you've forgotten the point of what your phone is.
And I will now give you source information to the above, these guys are the battery experts...
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
And lest anyone want to debate the battery cycling, here is a direct link to that information as well.
http://batteryuniversity.com/learn/article/battery_calibration
Read VERY CAREFULLY before you tell me Im wrong on this, batteries are a particular hobby of mine, I know enough to know what Im talking about.

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