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Old January 4th, 2011, 08:12 AM   #1 (permalink)
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Default Nexus S Batt Life

Guys

Purchased a Nexus S, set up as a basic phone, 2 x GMail accounts, IMO for IM running in BackGround, nothing else syncing and I am barely clearing 14 hours before batt is flat. It is nowhere near as good as my previous IPhone 4, and not as good as people claim on here

I have made sure Picasa is not syncing and I am going to get a spare batt to eliminate that as an issue.

I am on Orange, in a good signal area and switch off everything when not in use, I can contrast this with my Iphone which I can use all day at home with Wifi and it loses batt life around 11pm, the NS loses by around 4pm! Both phones switched on at 8-30ish

I am just looking for some real world comparisons out there

Thanks

Kerry

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Old January 4th, 2011, 08:20 AM   #2 (permalink)
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I was home sick this past weekend (so I was stuck at home) and was able to get about a day and a half out of my NS with 1 Gmail acct., 1 POP3 acct., WiFi on, Fring running in the background for Google & AIM chat. I checked Facebook on it every couple of hours, but the battery seemed to hold pretty well. Please note that I completely drained the battery twice when I first got the phone. I know we don't have to do this, but it's just an old habit.

I wanted to add, phone was unplugged from my charger at around 10am and I didn't plug it back in until 8pm the next night.
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Old January 4th, 2011, 08:22 AM   #3 (permalink)
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hmmm
ill keep an eye on it and see what is going on

k
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Old January 4th, 2011, 08:35 AM   #4 (permalink)
 
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I usually take it off the charger in the am and almost am never under 30% untill 12 am so your battery sounds a bit short
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Old January 4th, 2011, 08:37 AM   #5 (permalink)
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OK guys this is useful, thanks

Kerry
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Old January 4th, 2011, 08:37 AM   #6 (permalink)
 
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no problem
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Old January 4th, 2011, 11:04 AM   #7 (permalink)
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I had better results on my battery life today. Started yesterday with a full charge @ 7 AM. Handful of phone calls (+10) and text messages (40+ incoming & outgoing) and browsing a few websites and used XDA app.

Was down to 40% at 10 PM before I went to sleep. Left it without charging to see how far it will hold up. And it still had 20% in the morning.

My settings were, made sure I put the phone on 2G when I don't use the web, GPS turned off, and turned off Wifi when I didn't use it.
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Old January 4th, 2011, 01:41 PM   #8 (permalink)
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Check Settings>About Phone>Battery Use. Which apps have been using the most battery? IMO could be sucking it dry. I've also noticed that since Facebook's horrible attempt at including Facebook Chat into their app, it often goes rogue and kills my battery.
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Old January 4th, 2011, 02:05 PM   #9 (permalink)
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Install os monitor from the market and set it to sort the processes by load with highest at the top and don't hide system processes, and display CPU usage in notification bar so you can see when it's using a lot of CPU. I did find init spinning a few times, fixed by enabling USB debugging in the application settings area. Generally I find the battery to be a great improvement on my previous phones. I don't disable anything at all.
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Old January 4th, 2011, 02:32 PM   #10 (permalink)
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Coming from a HTC Desire I think the battery life is superb, all connectivity on, frequest browsings, calls, texts and facebook checks and have yet to see the battery fall below 30%, genuinely impressed so far. Certainly lasting well over 12 hours.
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Old January 4th, 2011, 02:57 PM   #11 (permalink)
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Guys

Thanks so much for the tips, I will implement it now, ill switch off IMO, and the FB idea is a good one

Ill keep you posted

Kerry
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Old January 4th, 2011, 03:12 PM   #12 (permalink)
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Quote:
Originally Posted by kerryburn View Post
Guys

Thanks so much for the tips, I will implement it now, ill switch off IMO, and the FB idea is a good one

Ill keep you posted

Kerry
Check the chat thing, if you don't 'go offline' in app it keeps you signed in permanently. What does the battery meter/graph tell you?
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Old January 4th, 2011, 03:30 PM   #13 (permalink)
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Minimal according to graph screen and calls today (just under 3 hrs) which doesnt seem too bad on reflection

Basically it does not seem as good as Iphone, and was hoping for the same

K
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Old January 5th, 2011, 01:50 PM   #14 (permalink)
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I've only had the 'phone since last Friday, but managed to get 48hours out of a single charge on Monday/Tuesday. And this is running the default active background, one GMail account, the Twitter widget and YouTube widget. I made about a dozen (short) calls, sent a lot of E-mail and did a fair bit of browsing and general playing around.

Impressed so far.
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Old January 5th, 2011, 04:15 PM   #15 (permalink)
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Then I hope mine is faulty, I am having to charge twice in a day, I have now switched off 3G nothing auto syncs and the batt meter does not show any rogue apps

2 leading consumers of batt are screen and phone calls.

Very frustrating
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Old January 5th, 2011, 04:52 PM   #16 (permalink)
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I installed Battery ETA and it says my battery only lasts around 11h 30m. Is that app accurate?
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Old January 5th, 2011, 04:53 PM   #17 (permalink)
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Default Then it is not right

If it is only lasting 11hrs, I will get mine changed tomorrow, if someone is really getting 48hrs then something is amiss...
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Old January 6th, 2011, 02:12 AM   #18 (permalink)
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Depending on how you use your phone don't go expecting 48 hours life out of it.

If you make a few calls, do some browsing etc a moderate amount, you should be happy to charge the phone overnight, every night - with any smart phone.
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Old January 6th, 2011, 02:20 AM   #19 (permalink)
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I dont to be honest and skeptical you can get that, I am barely clearing 11 hrs and that is with nothing other than email operating on push.

Performance is significantly worse than an Iphone for me

I will get it changed to today to eliminate a potential fault as a problem

Thanks to everyone for feedback keep it coming

Kerry
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Old January 6th, 2011, 02:32 AM   #20 (permalink)
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I'm at 62%, been on battery for almost 12 hours. Usage today included about 25 minutes of talk time, a few minutes on Maps and some Navigation, maybe 20 text messages, and maybe 20 minutes of web browsing. Wi-Fi, GPS, and 3G have been on the whole time.
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Old January 6th, 2011, 02:34 AM   #21 (permalink)
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Yup much better than me, I have switched off 3G etc, talk time yesterday was below 30 mins, and it it was switched off for about 3 hours!

Ill keep you all posted, I hope it is faulty

K
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Old January 6th, 2011, 03:04 AM   #22 (permalink)
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Here's a bit more info on my 62% remaining after 12 hours. When I first got my phone, I did not charge it until it was down to about 10%. I then let it charge fully, uninterrupted (basically over night). I repeated the cycle onces more, draining it below 10% and charging it again fully.

It was kind of a pain, considering I couldn't copy files to it via USB. I used SwiFTP and FileZilla to copy files around and help drain the battery a bit at the same time. There isn't really any significant evidence that training the battery like this helps, but I figure it's a small price to pay that could improve battery life for the life of the device.

Theoretically, you should be able to "train" the battery at any point. I actually like to go through the whole charge cycle thing every few months just to keep it healthy. Give that a shot and see if it helps...It might not though, considering yours is draining literally twice as fast as mine.

Edit: More info. My Gmail is in push mode. Twitter updates every 15 minutes. Facebook updates whenever I open the app. Weather updates every 2 hours or whenever the screen is turned on, including GPS location. 3G signal at my house (where I was most of the day today) is about -100 dBm 5asu, aka 2-3 bars. Background data is enabled.
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Old January 6th, 2011, 07:41 AM   #23 (permalink)
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Collected new phone today, will keep you posted guys

Kerry
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Old January 6th, 2011, 09:05 AM   #24 (permalink)
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i think it also depends on your 3g signal. i noticed when i'm in poor 3G signal (you can check by examining the graph and color bars from the Battery Usage) you'll notice your battery drain quicker. and terrific 3G areas, marked in Green, you'll notice the slop level off more slowly.
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Old January 6th, 2011, 04:27 PM   #25 (permalink)
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Originally Posted by inspiron41 View Post
i think it also depends on your 3g signal. i noticed when i'm in poor 3G signal (you can check by examining the graph and color bars from the Battery Usage) you'll notice your battery drain quicker. and terrific 3G areas, marked in Green, you'll notice the slop level off more slowly.
The bars turn green when you're connected to Google's services. It doesn't have anything to do with signal strength; that's just shown by the number of bars.
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Old January 6th, 2011, 05:04 PM   #26 (permalink)
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The bars turn green when you're connected to Google's services. It doesn't have anything to do with signal strength; that's just shown by the number of bars.
The post was referring to the colours in the battery statistics graphs.
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Old January 6th, 2011, 05:15 PM   #27 (permalink)
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The post was referring to the colours in the battery statistics graphs.
Ah, good point. I forgot about that.
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Old January 6th, 2011, 07:43 PM   #28 (permalink)
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I use to struggle to make it through a day with my nexus one my nexus s is way better.
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Old January 6th, 2011, 08:15 PM   #29 (permalink)
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My first day out with the phone and battery life was absolutely miserable, I barely made it 9 hours today but usage was pretty heavy.



I noticed a odd thing here, I started charging the battery then I had to do a battery pull for other reasons and when I stuck it back in the batt level jumped from 3% to 30% or so. You can see it at the end of the graph, perhaps that reset the stats somehow? I will charge it up, use it tomorrow and see how that goes.
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Old January 7th, 2011, 10:15 AM   #30 (permalink)
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and I will evaluate too, keep you posted

Kerry
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Old January 7th, 2011, 08:56 PM   #31 (permalink)
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Quote:
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My first day out with the phone and battery life was absolutely miserable, I barely made it 9 hours today but usage was pretty heavy.



I noticed a odd thing here, I started charging the battery then I had to do a battery pull for other reasons and when I stuck it back in the batt level jumped from 3% to 30% or so. You can see it at the end of the graph, perhaps that reset the stats somehow? I will charge it up, use it tomorrow and see how that goes.
Don't phones charge significantly faster when they're off? That's probably why you got the huge boost in battery.

Oh and another major thing. I don't think I saw it here. Check your screen brightness. If you have the brightness all the way up, expect mega battery drain. LoL!! Turn it on auto brightness or maybe a low brightness, below half at least. I know if I have my brightness all the way up, I get no battery life in my phone, ipod, DSi and other electronic devices. LoL!!
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Old January 7th, 2011, 09:29 PM   #32 (permalink)
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Originally Posted by No_Nickname90 View Post
Oh and another major thing. I don't think I saw it here. Check your screen brightness. If you have the brightness all the way up, expect mega battery drain. LoL!! Turn it on auto brightness or maybe a low brightness, below half at least. I know if I have my brightness all the way up, I get no battery life in my phone, ipod, DSi and other electronic devices. LoL!!
I get that but what's the point in having super bright SAMOLED screens if you turn the brightness down? I've always had my screen on max and still get well over a day easily.
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Old January 8th, 2011, 12:25 AM   #33 (permalink)
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Originally Posted by No_Nickname90 View Post
Don't phones charge significantly faster when they're off? That's probably why you got the huge boost in battery.

Oh and another major thing. I don't think I saw it here. Check your screen brightness. If you have the brightness all the way up, expect mega battery drain. LoL!! Turn it on auto brightness or maybe a low brightness, below half at least. I know if I have my brightness all the way up, I get no battery life in my phone, ipod, DSi and other electronic devices. LoL!!
Battery pull was for like 2 seconds, I pulled it out to rest a stuck bootloader and put it right back in and turned the phone back on.

Screen brightness was on auto.

Also happy to report that I had much better battery life today. I did use it less since I had real work to do

When I pulled the battery the phone was charged to 3%, unplugged and in recovery. I don't know if that reset something but when I put it back in and rebooted the phone the battery was up to 30% instantly.
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Old January 9th, 2011, 04:25 PM   #34 (permalink)
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Update

Well I am not sure what has happened but the Batt life on this new phone is nothing short of stunning, I have switched off location on the maps app on mobile signal, not using background IM other than the GTalk account but everything else is running and it is clearing 15 - 18 hours without any trouble. This is with an hour or more of talk time, intermittent wifi access and plenty of reading of news and twitter.

Thanks again to all of you for the testing, as I write this, the phone has been on for 12 hrs and is still over half full. This is with an hour of calls, and nearly two hours of on time for the screen!

Any questions please shout, thanks once again guys

Kerry
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Old January 9th, 2011, 04:37 PM   #35 (permalink)
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That's more like it! Glad you got it sorted!
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Old January 9th, 2011, 05:05 PM   #36 (permalink)
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Im getting 2 full days out of mine, I am so happy with this phone its not even funny.
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Old January 10th, 2011, 05:53 PM   #37 (permalink)
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Phone has been running 24hours on battery, screen brightness at 100%, all widgets, mail and facebook set to update as frequently as possible. Battery showing 30% left. Really impressed!
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Old January 11th, 2011, 03:10 AM   #38 (permalink)
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After a few days with this phone I'm pretty impressed with the battery life. It's looking better than my Desire used to be, and I haven't even performed any optimisation on it.
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Old January 11th, 2011, 04:01 AM   #39 (permalink)
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Quote:
Originally Posted by kerryburn View Post
Update

Well I am not sure what has happened but the Batt life on this new phone is nothing short of stunning, I have switched off location on the maps app on mobile signal, not using background IM other than the GTalk account but everything else is running and it is clearing 15 - 18 hours without any trouble. This is with an hour or more of talk time, intermittent wifi access and plenty of reading of news and twitter.

Thanks again to all of you for the testing, as I write this, the phone has been on for 12 hrs and is still over half full. This is with an hour of calls, and nearly two hours of on time for the screen!

Any questions please shout, thanks once again guys

Kerry
Just to make sure:
You're getting these results after replacing the phone, right? Did you get it right away or did you have to spend a few days "calibrating" it, as a few people suggested?
The reason I'm asking is I'm having similar issues with my Nexus S...
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Old January 11th, 2011, 09:50 AM   #40 (permalink)
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I noticed my phone's battery life wasn't as great compared to other ppls. Mine was lasting maybe like 12 hours. I asked my friend since he just got a Captivate and he said to drain the battery to like way close to empty then charge it back up to full. He was able to get his phone running on battery for > 24-48 hours after doing so.

So I did the same and I just turned on an internet radio app and streamed music all night till my battery ran out then I charged it back up.

So now after I did that, I basically used the phone unplugged from the charger from 8am, streamed music while driving to work for ~1 hour, occasional txts / phone calls / messing around on the phone installing apps or w/e, and streaming more music driving home from work. At around 7-8pm at night, my phone still had ~60-70%
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Old January 13th, 2011, 02:37 PM   #41 (permalink)
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Default battery life puzzle

This morning I noticed something unusual, last night I left the phone with 26% on the battery, however this morning when I woke up the battery was showing 28%. I am attaching picís of the battery screen, the graph certifies that there was increase of charge (without charging ????). Now one has to take onboard that there should be also battery drainage on standby as well.
(I do apologise for the fuzzy pictures/ thatís the best iphone can do)
Attached Images
File Type: jpg photo(26a).jpg (92.8 KB, 29 views)
File Type: jpg photo(29).jpg (106.2 KB, 20 views)
File Type: jpg photo(29a).jpg (63.5 KB, 21 views)
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Old January 13th, 2011, 03:43 PM   #42 (permalink)
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Quote:
Originally Posted by kerryburn View Post
Update

Well I am not sure what has happened but the Batt life on this new phone is nothing short of stunning
interesting. i'm also not making it through a full day and think i may want to look into getting a replacement.

i purchased at best buy in the u.s. and i'm wondering if i can replace it in the u.k.?
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Old January 21st, 2011, 01:55 PM   #43 (permalink)
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Default a new experience (I think)

I too had a bad experience (to put it mildly) with the battery discharge life of my Nexus S.... until about a week ago!

I purchased a power supply adapter that had slightly different specs on it from the one that came in the box.

The output specs of the new adapter are: 5.0 volts and 1000 mA (1.0 A).
The stock adapter output specs are: 5.0 volts and 700 mA (0.7 A).

**Notice the difference in the amperage.

The difference was amazing.

In all the following cases I have 3G and WiFi turned off (I only turn them on when I need them then immediately turn them off right after.)

It took the same time to re-charge from dead, but now when I unplug it and then check the battery status in the settings, I see 99% instead of 97%.

I now charge overnight and unplug it at 8:15 am. and after an hour of listening to music and half an hour of reading with Kindle and some 30 minutes' worth of phone calls, I still see 70-73% at about 11 pm.

I admit, I am not working the phone all that much, but the Kindle app does use up juice considering that it continuously lights up the background.

By the end of the second day (11 pm again,) and doing the same activities, the battery status is still at 30-34%.

The third day is the same. By 11 pm, the status is at about 3% (+/-). I then charge it overnight again.

So, now, with my pattern of phone usage, I go 3 days with one charge using the higher output adapter.

I am not suggesting you do the same, I am just giving you the outcome of my experience.

Hope this helps.

jake
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Old January 22nd, 2011, 12:04 AM   #44 (permalink)
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Try setting the kindle app to a black background using night mode, this apparently reduces power usage significantly.
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Old January 22nd, 2011, 05:47 AM   #45 (permalink)
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Originally Posted by jake_the_brash View Post
The output specs of the new adapter are: 5.0 volts and 1000 mA (1.0 A).
The stock adapter output specs are: 5.0 volts and 700 mA (0.7 A).

**Notice the difference in the amperage.
i'm not an electrician so can you (or someone) explain what's going on here and whether there are any risks to over-amping your battery?
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Old January 22nd, 2011, 10:50 AM   #46 (permalink)
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To ianr,
The Kindle app is not presenting a problem. My point was that despite using the kindle app (with light background) I am still getting good battery life.

To smileman,
A valid point to be sure, and one that I anticipated; but to preface my answer, those were my observations, not my suggestions.

At any rate, what transpired was that I happened to purchase a generic, universal adapter as an extra one to keep at work, used it, and noticed a better battery life, so I set out to see why.

I highly doubt I am "overamping." If anything, I suspect that the stock adapter is "underamping," so to speak, but of course, I can't be sure.

Even though I "kinda" know why the amp difference makes such a difference in battery life, not being a proper engineer precludes any half-hearted attempts at explaining this technically.

Anyhow, if any are listening, among the people that fared better when they replaced their units (including the adapter,) it would be nice to let us know the specs of the replacement adapter.
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Old January 22nd, 2011, 03:03 PM   #47 (permalink)
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Quote:
Originally Posted by jake_the_brash View Post
I too had a bad experience (to put it mildly) with the battery discharge life of my Nexus S.... until about a week ago!

I purchased a power supply adapter that had slightly different specs on it from the one that came in the box.

The output specs of the new adapter are: 5.0 volts and 1000 mA (1.0 A).
The stock adapter output specs are: 5.0 volts and 700 mA (0.7 A).

**Notice the difference in the amperage.
Usally with Lipo & Li-ion batteries like used in most things now-adays you are ok to charge upto 1C, which means if you have a 1500 ma battery you can charge upto 1.5 amp a 1200 ma 12.amp. The higher the current the faster the cell will charge and the more heat and these batteries do not like heat and over charging.
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Old January 22nd, 2011, 03:20 PM   #48 (permalink)
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To Parttimer,
Well, the phone does not get hot at all during re-charging. And, also, according to your explanation, and taking the fact that Nexus S comes with a 1500 mA battery into account, I am well within range with a 1000 mA adapter.

Although, charging time is still the same with the new adapter. Don't know how to explain that.
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Old February 16th, 2011, 06:08 PM   #49 (permalink)
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I've just bought a new Nexus S and battery life is pathetic, even with Juice Defender ultimate installed. I take it off the charger at 8.00 and by 18.00-20.00 the battery is flat. I have screen on low and hardly ever use it, apart from 30-45 mins of Angry Birds.

What is the point of having a phone with great features if they can't be used! My wife's iphone 4 battery lasts a lot longer and she uses it a lot more. And why do we need to buy apps such as Juice Defender, the program should have built in energy saving as standard. It's a shame to say, but it's put me off android and I was originally enthusiastic, opting for android instead of iphone - what a mistake!
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Old February 16th, 2011, 07:06 PM   #50 (permalink)
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I've just bought a new Nexus S and battery life is pathetic, even with Juice Defender ultimate installed. I take it off the charger at 8.00 and by 18.00-20.00 the battery is flat. I have screen on low and hardly ever use it, apart from 30-45 mins of Angry Birds.

What is the point of having a phone with great features if they can't be used! My wife's iphone 4 battery lasts a lot longer and she uses it a lot more. And why do we need to buy apps such as Juice Defender, the program should have built in energy saving as standard. It's a shame to say, but it's put me off android and I was originally enthusiastic, opting for android instead of iphone - what a mistake!

It's most likely just the way you have it set up. I use mine constantly, I take it off the charger around 9 am and use it frequently through out the day. By the time I go to bed at around 12 its still at about 45 percent. And honestly I have tried juice defender before and it did absolutely nothing to help me save battery life.

Although I have found playing angry birds really dominates your battery life.
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