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Poor Battery Life on NS?

I'm going to try to purchase my Nexus S before class tomorrow when they open. Don't want to take any chances on it selling out. Would it be wise to turn it on and use it a while during the morning? Or does the battery need to be fully charged before using it to condition it and ensure a good battery life? I've read many battery tips but i'm still a little confused on whats better for a new battery.

CaliLove310 said:
I'm going to try to purchase my Nexus S before class tomorrow when they open. Don't want to take any chances on it selling out. Would it be wise to turn it on and use it a while during the morning? Or does the battery need to be fully charged before using it to condition it and ensure a good battery life? I've read many battery tips but i'm still a little confused on whats better for a new battery.
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When you get it, deplete it, but do not let it die. Ever. Then just cycle it normally.

zachthemaster said:
When you get it, deplete it, but do not let it die. Ever. Then just cycle it normally.
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What do you mean by "die".... like to 0%, if so what should we take it down to?

azn2050 said:
What do you mean by "die".... like to 0%, if so what should we take it down to?
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Click to collapse
Yes, by letting your battery "die", per se, you're letting it deplete to 0%. I'd say for safe measure, between 5%-9%. But if you're in the vicinity of a charger take it down to 2%. If not, turn it off at 5%, then plug it in before powering it back on. My devices' daily life lasts so long (on all devices I own) because I properly know how to cycle a battery.

If you let your battery die (0%), it'll lose more and more charge (on a 0.00% level) every time. When you get it tomorrow though, it should have ~50%-60% charge.

CaliLove310 said:
I'm going to try to purchase my Nexus S before class tomorrow when they open. Don't want to take any chances on it selling out. Would it be wise to turn it on and use it a while during the morning? Or does the battery need to be fully charged before using it to condition it and ensure a good battery life? I've read many battery tips but i'm still a little confused on whats better for a new battery.
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Click to collapse
There's no need for that, only if it doesn't have any juice.
More info: batteryuniversity dot com

Battery life?
So how are your batteries doing? Mine is kind of crappy. What supposedly changed in 2.3? I see no difference in the reporting of apps in Battery Use and they took away Battery History in the hidden system settings. Where is the graph everyone talked about?

You gotta give it a few charging cycles for the battery to reach it's full potential. Give its few days, you'll notice it will get better after you charged it a few times.
Sent from my Nexus S using XDA App

The battery life on mine is chugging along pretty well. I gave it a full charge before hitting the streets. Its been 4 hours with wifi and GPS on with a couple dozen pictures taken and a bunch of apps dl and installed. used maps 5.0 and periodically hit the GPS for my position getting really good accuracy while driving and the battery level still has a little more than 4/5s battery life still remaining
Sent from my Nexus S using XDA App

hah2110 said:
So how are your batteries doing? Mine is kind of crappy. What supposedly changed in 2.3? I see no difference in the reporting of apps in Battery Use and they took away Battery History in the hidden system settings. Where is the graph everyone talked about?
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You haven't broken it in yet, use your brain.

The phones barely been out that long, it takes a while to have good statistics about battery life.

Myth on lion
rashad1 said:
You haven't broken it in yet, use your brain.
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Sent from my Nexus S using XDA App

I haven't even reached the full 100% charge yet, been using it then charging it some then using it then charging it some. Lol

hah2110 said:
So how are your batteries doing? Mine is kind of crappy. What supposedly changed in 2.3? I see no difference in the reporting of apps in Battery Use and they took away Battery History in the hidden system settings. Where is the graph everyone talked about?
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Click to collapse
hah2110 said:
Myth on lion
Sent from my Nexus S using XDA App
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That's funny because every company that sells back up batteries tell you to go through 4-5 full cycles before it reaches its potential. I guess you're right, and they're all wrong.

They are wrong. Google it
Sent from my Nexus S using XDA App

Battery
how do I train my battery it was halfway charged when i got it do I let it die and then put it on the charger thanks!
EDIT:WRONG SECTION DELETE THIS MODS!

I've always charged all the way up then ran the battery all the way down, then charged all the way up again. Then periodically, I will run the battery all the way down just to give it a little exercise. So far out of all the cell phones I have had I have had 1 battery go bad on me, that was 8-10years ago.

Battery
how do I train my battery it was halfway charged when i got it do I let it die and then put it on the charger thanks!

matter of opinion really.... I would kill it by playing with it.... then do a full charge
that is what I am doing

Generally the suggested method is to charge it for 8-12 hours as soon as you can, then use it until it gets very low, then charge for another 8-12 hours. Do this cycle about 3 to 4 times and you've got yourself a healthy battery.
Killing the battery entirely, despite popular belief, can have some negative effects on its health. Especially during is conditioning phase.

[Q] Best Rom Desire S. Battery Wise!

What is the best ROM for Desire S in terms of battery.
I used virtuous unity 1.29.0 and it's battery backup was quite good then my original ROM.
But after updating to new virtuous unity 1.31.0 the battery backup goes quite bad.
Anyone know a good battery backup ROM for desire s?

Calibrate your battery, really works!
Instructions:
1. Turn your phone on and charge it for 8 hours our more
2. Deplug charger, turn your phone off And charger it fit one hour
3. Turn your phone on, wait 2 minutes,turn your phone off and charge it for one hour
4. Turn phone on and your battery life should be much better now
Sent from my HTC Desire S using XDA Premium App

Don't forget to sacrifice a virgin and hire a shaman.
Cmon ppl! Li-Ion and Li-Poli batteries do not require forming (yeah its forming not formatting). Ni-Cd and Ni-MH were the types that required this.
In extreme situations (charging over 20hrs) you can even damage/reduce capacity of your phone's Li-Ion battery.

ptenteges said:
Don't forget to sacrifice a virgin and hire a shaman.
Cmon ppl! Li-Ion and Li-Poli batteries do not require forming (yeah its forming not formatting). Ni-Cd and Ni-MH were the types that required this.
In extreme situations (charging over 20hrs) you can even damage/reduce capacity of your phone's Li-Ion battery.
Click to expand...
Click to collapse
So are you saying NOT to calibrate your battery that way?

Yeah.. is that really works?
Sent from my HTC Desire S using XDA App

try miui rom.......... my battery life is superb.. i tried every custom rom in my point of view miui is perfect... try it once......

olyloh6696 said:
So are you saying NOT to calibrate your battery that way?
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I'm saying that the type of the battery used in Desire S is not formable. Additionally in extreme situations you can damage it by overcharging it. This is more complicated, because it also depends on the type of charger, and charging hardware in the phone.
What DesisreS says looks exactly like forming process, hence my response.
What you (possibly) can do, is calibrate your device/os to properly read battery status and use it more efficiently. But this is done through some software tricks I don't know.

Our battery is smart.
Overcharging it won't do anything. It just cuts off the electricity when reaching 100%. Full voltage is around 4.2V. If you look at your voltage while charging, it's already at 4.2V at around 70%. I have no idea why it does that.
And at 0% it's not really empty. It still has around 3.5V. It gets dangerous at 3V where it won't be able to charge again.
Just clear your battery stats in recovery or use an app from the market and see what happens.
Read and search around the forum for more info.

ptenteges said:
I'm saying that the type of the battery used in Desire S is not formable. Additionally in extreme situations you can damage it by overcharging it. This is more complicated, because it also depends on the type of charger, and charging hardware in the phone.
What DesisreS says looks exactly like forming process, hence my response.
What you (possibly) can do, is calibrate your device/os to properly read battery status and use it more efficiently. But this is done through some software tricks I don't know.
Click to expand...
Click to collapse
+1
You can use the app called battery calibration from the market for the calibration
Charge battery to 100% & run the app
This does not increase battery life but helps the OS read the battery more accurately & this needs to be done after installing a new ROM

kartkk said:
+1
You can use the app called battery calibration from the market for the calibration
Charge battery to 100% & run the app
This does not increase battery life but helps the OS read the battery more accurately & this needs to be done after installing a new ROM
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Click to collapse
Uhuh, this is what I mean. But lets go back to the original question, what are your experiences with different ROMs and battery life? I'm going to be Desire S user soon so I'm curious too.

ptenteges said:
Uhuh, this is what I mean. But lets go back to the original question, what are your experiences with different ROMs and battery life? I'm going to be Desire S user soon so I'm curious too.
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Click to collapse
LeeDroid ROM. Offers great battery life and very close to stock ROM. I got 1/2 day use on stock ROM with heavy use when I first got it, then put leedroid on, now I'm having 1 full day heavy use before I have to charge my phone (15%)
(Includes a lot of syncing, WiFi, web browsing, music,games etc the whole day)
Sent from my HTC Desire S using XDA Premium App

Thanks guys.
I decided to go with virtuous rom. it's new version is coming out with very good battery life.

vishalduggal said:
Thanks guys.
I decided to go with virtuous rom. it's new version is coming out with very good battery life.
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Click to collapse
not just good battery life but many more awesome features
@olyloh6696 i think you should also try the vu beta im impressed by it

i really hope the next version of miui for desire s will have better battery life, i think it's the best looking rom and i will definitely keep it when battery is improved!

[Question] BatteryLife increase?

I heard that the battery life will get better if i get my battery often down (0%) and then full loaded again
Can you give me information about ? True or lie?
Sent from my GT-I9003 using XDA App

Well, it is a well known good practice to let the phone switch off itself due to low battery and charging it completely while switched off. You can do this while sleeping at night; hence less chances of missing important calls. Though most of us cannot do this in real life; it is recommended for first 10 charge-discharge cycles of a new battery to ensure good life.

Why do you do unuseful posts in the developement area???? Didn't you see the f*****g q & a sticky above???

did you see that ive posted with the android app? because of that i didnt see sticky threads, sorry for that

agnivo007 said:
Well, it is a well known good practice to let the phone switch off itself due to low battery and charging it completely while switched off. You can do this while sleeping at night; hence less chances of missing important calls. Though most of us cannot do this in real life; it is recommended for first 10 charge-discharge cycles of a new battery to ensure good life.
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Click to collapse
i dont think frequently discharging to 0% is a good idea for battery life!!
just use the battery calibrator app from market and calibrate battery when voltage reaches around 4192mV
n if ur problem is solved then edit the thread topic to include [closed]

^^ Well in practice, the phone doesn't allow the battery to deep-discharge or 0% absolutely...

It is just the hype and worked for older battery type but we have lithium ion battery they don't work this way. I know there are so many members here who will against me in this thought but this is what I understand from so many forums.
One time battery calibration is good idea specially when you install custom rom and there is an app for it in market. It delete battery data when phone reached to 100%.
Realty is if you want good and longer battery life for lithium ion battery then charge frequently and best charging % range is 25 to 35% but not mandatory.
Sent from my GT-I9003 using Tapatalk

manrock111 said:
It is just the hype and worked for older battery type but we have lithium ion battery they don't work this way. I know there are so many members here who will against me in this thought but this is what I understand from so many forums.
One time battery calibration is good idea specially when you install custom rom and there is an app for it in market. It delete battery data when phone reached to 100%.
Realty is if you want good and longer battery life for lithium ion battery then charge frequently and best charging % range is 25 to 35% but not mandatory.
Sent from my GT-I9003 using Tapatalk
Click to expand...
Click to collapse
Yup. that's true. Also deleting battery stats when at 100% is not the final step. Make sure that the voltage is around 4190mV when at 100%. Max is 4200mV.
Read somewhere that due to miscalibration battery will be shown as 100% even though the peak voltage hasn't been reached yet.
Sent from my GT-I9003 using xda premium

some reference to lithium ion batteries
http://electronics.howstuffworks.com/everyday-tech/lithium-ion-battery.htm
http://osxreality.com/2009/07/18/4-tips-to-extend-your-lithium-battery-life/

>>>>>POST GENERAL QUERY HERE<<<<<
>>>>>POST YOUR QUESTION ONLY HERE<<<<<
* PLEASE DO NOT ENTERTAIN MORE QUESTIONS OUTSIDE THE Q and A SECTION/GENERAL..THE MORE YOU ANSWER THE MORE UN-NECCESSARY THREAD WILL POLLUTE OUR SPACE!!*​

[FAQ]Battery

Hi guys, have 10 mins so decided to write up little explanation about batteries.
Main purpose of this thread is not "how to look after li-ion battery so it stays alive forever" but rather how to get best day to day performance without killing battery prematurely (before contract expires lol)
First of all, there is no such thing as battery conditioning or calibration with Li-Ion. When people say that, they refer to BATTERY STATS (software side) knowingly or unknowingly.
Second. Battery stats. Forget about clearing them every time you flash A ROM. ONLY do it if something is seriously wrong with battery reporting, you'll "feel" exactly when it's happening. Poor battery life is not caused just by bad stats normally, erratic and weird percentage reporting is. If you wipe stats every time you flash new ROM, it will take few full cycles to rebuild them during which you will experience poor battery life and blame the ROM obviously.
Third. Try to stick to FULL cycles as much as you can, 100%-0%-100%-0%. This helps to keep battery stats healthy.
Fourth. Discharging battery to 0% is NOT BAD! I repeat, it's not bad. That is until you start trying to discharge it completely by trying to start up the phone, or do not charge immediately (or within reasonable amount of time). Batteries are smart nowadays, and they shut down when they still have some charge left (surprise, surprise) so they don't get damaged.
This ^^^ works for any smartphone really, but keeping to full cycles help our Sensations especially, as it helps with touchscreen problems (see my or zmfl's threads).
All of the above are my findings, experimenting, searching net or discussing with other smartphone users, I have no hard data to prove it. So either believe it or don't, it's up to you. I know quite a few people who agree with the above.
If you find this useful i'd recommend making it sticky.
Any further questions will be answered to my best knowledge, and if i don't know something i'm sure fellow members will join in. I'll add more Q/A's to OP as they come.
Part 2
Bump charging.
Hmm, tough one. An odd battery will benefit from it, but most batteries wont. Bump charging will eventually damage battery and you'll be worse off in the end. Not recommended.
Battery percentage jumps up and down after reboot (Sensation specific)
Has been discussed A LOT here. There are plenty of explanations why it happens, I'm not sure if any of them correct, but the main thing is, just disregard it as it will catch up with correct % pretty soon by depleting faster/slower.

This is the best thread for battery IMO.

Thanks
likuku said:
This is the best thread for battery IMO.
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Sent from my HTC Sensation Z710e using XDA App

Thank you! Finally, a post on battery life that is actually factual.
Still not sure about the whole "Full discharge/charge" cycles, since Li-ions prefer partial charge, but regardless. Nice one
Sent from my HTC Sensation XE with Beats Audio Z715e using XDA App

282 views and 5 votes? Seriously?

As a electrical engineer I have to disagree with some of the statements.
From what I studied it's best practice to keep your Li-Ion fully charged. Keeping your battery discharged for a long time may decrease your battery lifetime. Yes, there are safeguards, but still it isn't healthy for the battery. It's not like going under a magical barrier of 3500mV causes dmg to the battery and 3501mV causes no dmg at all. It's bull****.
How to maximize your battery life?
Do not charge your battery when you're running high demanding tasks.
Do not softreset your phone when you're charging.
Do not discharge your battery when it's not needed.
Keep your battery dry.
Do not expose your battery to temperatures above 50C or below 0C.

Cool. Very good info, will add to OP if you don't mind.
Regarding discharge, I did say that if phone dies you should charge it immediately I do not recommend "killing" it, ie trying to start phone when its dead repeatedly.
It is indeed good to keep Li-Ion topped up at all times, bit disadvantage of that is messed up battery stats, which will cause incorrect readings and premature shut down- hence bad battery life.
Jackos said:
As a electrical engineer I have to disagree with some of the statements.
From what I studied it's best practice to keep your Li-Ion fully charged. Keeping your battery discharged for a long time may decrease your battery lifetime. Yes, there are safeguards, but still it isn't healthy for the battery. It's not like going under a magical barrier of 3500mV causes dmg to the battery and 3501mV causes no dmg at all. It's bull****.
How to maximize your battery life?
Do not charge your battery when you're running high demanding tasks.
Do not softreset your phone when you're charging.
Do not discharge your battery when it's not needed.
Keep your battery dry.
Do not expose your battery to temperatures above 50C or below 0C.
Click to expand...
Click to collapse
Sent from my HTC Sensation Z710e using XDA App

Jepp, doing 100%-0%-100%-0% cycles will result in best battery "calibration", but that's just software based as you mentioned. This would be excellent for older battery types.

And very good for Android battery stats. Basically, what I posted is explanation how to keep battery stats healthy while not damaging battery. From battery point of view, yes just keep it topped up to preserve it the longest. From Stats point of view, drain,charge,drain,charge is the best thing. Both are not good for each other. But, I'd rather have healthy stats for best performance in day to day use if I had to make a choice, since Anker is only 12gbp, and if I kill one, I'll just get a new one.
OP is basically how to keep Stats/Battery balanced without affecting each other too much.
Just remember disclaimer, all of the info is what I found by reading and from personal experience. You don't have to take it for granted.
Jackos said:
Jepp, doing 100%-0%-100%-0% cycles will result in best battery "calibration", but that's just software based as you mentioned. This would be excellent for older battery types.
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Sent from my HTC Sensation Z710e using XDA App

Nice FAQ, mate. Helpful infos imo.

Sensation Xe battery with 2 days use
i have rom ARHD 3.6.7, bricked kernel 1.5 and my battery last 2days with moderate use
i only wip battery stat once when flash new rom.

The best charging strategy (for a long battery life, in terms of persistance) for a vehicle with a range extender (e.g. used in Stuttgart in some of the Mercedes buses) is keeping the charge between 40 - 60%. Higher and lower will shorten the life of the battery more. Since these vehicles use LiIon batteries, I think it should be the same for smartphone batteries.

Sibbi said:
The best charging strategy (for a long battery life, in terms of persistance) for a vehicle with a range extender (e.g. used in Stuttgart in some of the Mercedes buses) is keeping the charge between 40 - 60%. Higher and lower will shorten the life of the battery more. Since these vehicles use LiIon batteries, I think it should be the same for smartphone batteries.
Click to expand...
Click to collapse
Not exactly. Technology is fair bit different there afaik. Also, them batteries cost thousands, Anker costs a tenner.
Purpose of this thread is not how to preserve battery longest, but how to get best performance day to day use without killing battery too soon.
Sent from my HTC Sensation Z710e using XDA App

tinky1 said:
Not exactly. Technology is fair bit different there afaik. Also, them batteries cost thousands, Anker costs a tenner.
Purpose of this thread is not how to preserve battery longest, but how to get best performance day to day use without killing battery too soon.
Sent from my HTC Sensation Z710e using XDA App
Click to expand...
Click to collapse
Cool as you know my topic was closed most of issues have been solved although battery life remain in progress. If you don't mind I will be happy to post my results from anker here in compare to stockresults as I have plenty screens to compare and both batteries have been use on exactly same setup with same use.
Sent from my Sensation using XDA App

Yeah, carry on. Just specify wherever you followed advice from the OP or not.
Sent from my HTC Sensation Z710e using XDA App

tinky1 said:
Yeah, carry on. Just specify wherever you followed advice from the OP or not.
Sent from my HTC Sensation Z710e using XDA App
Click to expand...
Click to collapse
Mostly. My topic was reopened so I will keep on posting there on regular bases however after week or two when I will finish testing will post my final results and comparison here as well. My topic is already messy so it will be kind of blog on testing battery life and because this one is clear and nice I will just upload screens with final results.
Sent from my Sensation using XDA App

Good lad. I like your style, seems very sensible
leyus said:
Mostly. My topic was reopened so I will keep on posting there on regular bases however after week or two when I will finish testing will post my final results and comparison here as well. My topic is already messy so it will be kind of blog on testing battery life and because this one is clear and nice I will just upload screens with final results.
Sent from my Sensation using XDA App
Click to expand...
Click to collapse
Sent from my HTC Sensation Z710e using XDA App

Similar to a mechanical device that wears out faster with heavy use, so also does the depth of discharge (DoD) determine the cycle count. The smaller the depth of discharge, the longer the battery will last. If at all possible, avoid frequent full discharges and charge more often between uses. If full discharges cannot be avoided, try utilizing a larger battery. Partial discharge on Li-ion is fine; there is no memory and the battery does not need periodic full discharge cycles other than to calibrate the fuel gauge on a smart battery.
Source:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Comments:
Yes I will still do my 5 full charge, discharge cycles to calibrate stats nicely but then I will try to replace my batteries before they are gone, reading that convinced me that there is no point on doing this to often, at the end of the day, how big can be impact of software stats on battery life? With this article you can clearly see that way you charge it does have massive impact. I'm not arguing that proper calibration etc. does not have it but still don't think it is that much as this article reviled.

Thanks!

Bad battery stats might simply shut down your phone before it should (say you might still have 20% left but phone thinks battery is empty).
Again, I'll repeat myself, I'll sacrifice £12 battery for the sake of having phone running longer any time, but main purpose of this thread is how to get most out of battery without sacrificing It's longevity too much too soon.
Let's not go down the route where people argue about how to preserve battery from dying for 10 years, its not the point.
Sent from my HTC Sensation Z710e using XDA App

Battery must be recalibrated on each rom update?

Hi every one,
I was wondering if there is need to recalibrate the battery on each rom update, custom and lg official releases?
Also i bought a 1900mAh battery so I think it need to calibrated for better performance?
Any advice will be great
Sent from my LG-P920 using xda premium

no.
Battery calibration does not affect battery performance, it just changes the accuracy of the battery %age display. There is also no way of calibrating the battery, as it is directly read from the li-ion battery itself. Deleting the batterystats.bin Does nothing besides resetting androids About Phone>Battery Use data - which already resets itself on a full charge (And also broken on O3D GB Roms)
Its actually likely that calibrating the continually will eventually result in considerably worse battery life, as li-ion batteries are best operated between 20-80% charge.

oyanezg said:
Hi every one,
I was wondering if there is need to recalibrate the battery on each rom update, custom and lg official releases?
Also i bought a 1900mAh battery so I think it need to calibrated for better performance?
Any advice will be great
Sent from my LG-P920 using xda premium
Click to expand...
Click to collapse
I saw on the battery calibration app, that it must be recalibrated, since each rom has diferent files to manage power, and it will actually help the battery managment.
Thats what i know, im not an Expert.

tachi_do said:
I saw on the battery calibration app, that it must be recalibrated, since each rom has diferent files to manage power, and it will actually help the battery managment.
Thats what i know, im not an Expert.
Click to expand...
Click to collapse
I saw that too, on battery Calibration by NEMA it says:
calibration needs to be done after flashing a new ROM. but you calibrate.. etc. the whole message that why my initial post was about, I saw other posts saynig that it must so ill do it just in case I dont think that will do anyharm at all.

wasn´t calibration just a matter of charging till 100% when off, then remove battery, insert battery and then start phone and plug again??
i do this and my battery it's all good, although i cna't watch a video for more than 3 hrs hahahaha

It actually worked on my ZTE Blade. I believe it's called overcharging.

hi
i dont think so need callibration after each new rom!
it might harmful for battery!