HTC Desire :: Battery Life - Breakdown Of Usage
Sep 27, 2010
We've all heard the horror stories (I just bought my Desire and the battery lasts for about 4 hours!) and the fanboy wankery (I get at least 3 days of heavy use!) So today I unplugged my Desire at about 6am and set off for work. It's 7pmish now and here's some stuff you may like to look at. I have 3G disabled, Sync on manual, no "live" widgets (just WiFi and bluetooth) live wallpaper (nexus) and screen brightness on auto. Here's the battery status (rounded up from 25% according to Battery Info in the Testing app)
The breakdown of usage:
My phone was idle for 9 hours and 45 mins:
The Display was on for a mere 2hours and 46 mins
With only 1.5 hours of WiFi:
And 30 mins of calls:
So, that'll be less than 3 hours of usage.
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Sep 8, 2010
What actually does that mean when you see android system in the battery consumption breakdown page? Like what parts of the phone use comprises android system, like does looking for a signal comprise system and suck like? And what is considered high android system use?
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Mar 14, 2010
Are there statistics as to what percentage of users are using a screen resolution. I am looking for something like the platform versions breakdown Google provided a few months ago. What I am wondering is if its worth the extra effort to ensure proper display of my apps in QVGA or other odd resolutions.
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Nov 26, 2009
Does anyone know of a way of viewing a breakdown of phone memory usage? If it starts getting full (which presumably won't take long given the measly amount we have to begin with) I'll want to know what to delete or trim to free up space.
SMS messages are stored on the phone memory, aren't they?
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Jun 2, 2010
I propose that we all post our battery life graph like the one I am about to post below. This way we can look at these claims in scrutiny, and perhaps figure out why it is that some people's Evos seem to last longer than others. Here is a graph of my Evo's Battery Charge over 1 day:
Wake up at 7:30am to disconnect the charger, listen to Pandora on the car to work until I arrive at 8am. Idles until lunch time at 12pm. Use the Evo to read up on some news at lunch until 1:30pm. Listen to Pandora while working until 5pm. Drive home while listening to Pandora in the car. Battery starts giving warning indications while driving, and phone dies when I get home at 6pm. Very usual day, and matches what the battery charge graph shows. The top apps of the day are:
System Processes contains mediaserver (2.4% due to Pandora), akmd (0.3% accelerometer polling), and everything else is <0.1%. As you can see I barely used my phone during the day for anything but Pandora. So based on my data, I'd say that the normal battery life for the Evo is under 10 hours. My settings are: no 4g, no wifi, no bluetooth, yes gps, yes bckgrnd data, auto brightness, no live wallpaper, yes taskmanager (ATK, set to "safe" setting. Will probably get rid of this..), no friend stream, no flickr.
I'd love to see other people post up their Battery Usage graphs as well. The App used is "SystemPanel App / Task Manager", available for free in the market. Go into Settings and allow it to Monitor. The screenshots were made by ShootMe, also available in the market.
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Aug 8, 2010
However, this simply has not been my experience at all, I get a couple of days out of my SGS whereas some others report only getting a day.
I just thought it would be interesting for us to post in here how much battery life we are getting for the amount of use we put the phone to.
There must be some sort of pattern.
My usage:
anywhere between 10 - 30 texts per day.
Several emails - sending and recieving.
a few phonecalls.
30 Minutes of gaming.
Twitter.
Live wallpaper running.
BBC News widget running and Weatherbug widget running.
I also listen to some music but this varies day by day.
3G and HSPDA are left on constantly as is my wireless.
GPS is turned off.
Thats my usage and i get at least a day and a half. Would be interesting to compare...
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Dec 14, 2009
When my SD card is mounted in my Magic, the CPU usage is very high (90%+), the battery is very warm (34 degrees +) and it drains the battery very quickly (dead in 10 hrs with very min use).
When the SD card is unmounted or removed, the CPU usage drops to 10% or below, the phone is cool and the battery lasts very long.
Does anyone know the reason behind this and how it can be resolved?
I've reformatted the SD card and removed some of the media files not supported by my Magic but still have this issue.
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Nov 5, 2010
My X recently (within the last week) started having extremely poor battery performance under the same usage conditions as the previous week (K-9 syncs every 15 min, maybe 2 texts per hour, 2-3 emails per hour, maybe 5 total minutes of phone use). After 4 hours, the battery would be at 20-30%
To make matters worse, most functions were extremely slow to respond (contact loading, test message loading, recent calls, bookmarks, any scrolling was choppy, etc.) The delay when trying the most basic things (opening the browser, making a call) was getting unbearable.
I started backtracking the changes in the last week. Although I started tinkering with Google's App Inventor over three weeks ago, that's where I focused. I uninstalled all App Inventor programs, including the Eyes-Free Text to Speech engine. This engine was recommended by Google to do things like read text messages in the Apps you create.
Still no luck.
I decided to investigate the battery use a little more. In Battery Manager, I found that "Android System" was using about 70% of my battery. I was typically used to seeing things like "display" at the top.
I have an app called Android System Info. This showed my CPU usage pegged at 100% (even after a reboot). It never got lower than 99%. The biggest CPU hog was "Android System" at 75-80%, consistently.
This App has a tab to view the log, and I noticed several recurring error messages in the log. They were occurring at the rate of about 180 times per second! The error? "Invalid TTS Engine" Well, the TTS is controlled by the "Android System". The "Android System" was constantly trying to load the uninstalled TTS engine.
I went into "Settings...Voice input and output", and, although the Eyes Free TTS engine wasn't available, the default TTS was not set. I checked the box to have the native TTS as the default, and checked the box for "Always use my settings".
Everything immediately went back to normal. CPU usage is now around 10-20%, and "Display" is back at the top of my battery hogging functions.
Battery life is back to over 10 hours, and the delays are gone.
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Nov 6, 2010
Since installing Froyo, and also doing a factory reset, my battery life seems much worse.
Also when I check what has been using the battery there are not as many apps displayed, typically just 'Display' and 'Cell Standby' even though I have used the web browser, wifi and Angry Birds.
Maybe the battery needs recalibrating with the new firmware?
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Sep 12, 2010
This is NOT a "my battery life sucks" thread, i'm just wondering what apps everyone uses to monitor their battery life and device usage.
I'm currently using:
Default Settings > Battery > Battery Use
Spare Parts
System Panel
Battery Graph
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Jul 1, 2010
I'd like to know the opinions various Galaxy S users have about this phone's battery life and their usage profile. I'd appreciate if you can provide me the following information:
1/ How long does the battery charge last between charges?
2/ What is your approximate phone usage profile during a day?
(Eg. 2hrs of browsing over wifi, 1 hour of browsing over 3G, 1 hour of video playback, 2 hours of audio playback/streaming while browsing etc.)
3/ Other useful information (Eg. signal conditions - poor 2G/3G coverage around my office)
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Sep 3, 2010
this thread directed at those that did not root or unlock their HTC desire but uses its original android.. before i go on, my standard usage is as follows, mostly sms using, a phone call or two, less than an hour of wifi browsing at night.. on android 2.1, my battery lasted roughly 2 days and a bit more.. after updating to android 2.2 via wifi through auto update on the phone. today was my third day after charging my phone to 100%.
its now almost 5pm, on my third day and my battery still has a whopping 40% of battery life left.. so just wondering whether anyone else have this miraculous boost of battery life with android 2.2 or not.
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Apr 25, 2010
I'm wondering what the best charging strategy is to get the battery working at its best. Let it run down to almost empty then fully charge each time or just keep topping it up when I'm near power?
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Nov 17, 2010
Can every post their battery usage of the calender, My calender is taking up around 70% of my battery and i barely have any apps installed. It is making the lifespan of a charge a nightmare.
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Apr 2, 2010
I was panicking a little yesterday as I thought I would miss the delivery of my new Desire. This was not the case at 5:30pm it arrived and it truly is an amazing phone. It took me around 4 hours to totally kill the battery from new (when you get the battery it only has a little charge in it) so this I was really pleased about, this was with WiFi on constantly and using it nonstop on twitter, flicker, taking photos, android market, internet browsing and basically just finding my ways around the menus as i've been out of the game for a while. I really think that the worries I was having about not liking it and reverting back to my iPhone are blown out of the window, this device really has blown me away and the integrated twitter app Peep is also very good, although I am now using tweetcasterPRO. It had a full charge last night so I am going to hammer the phone today to see how quickly I can get the battery to go flat so I have a rough idea if one charge will last me through the day.
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Aug 22, 2010
On battery usage partial wake - does anybody know what UID 10016 is? As this is using the most followed by android system followed by dialer. Should dialer be there on partial wake??
Also what version of facebook for sense are people using and is there a way to update the built in apps or do we have to wait for a system update?
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Apr 16, 2010
I'm thinking of getting the HTC desire when it releases in the US and I know it has already in Europe. I'm one of those people that would use the phone for internet, texting,probably not emailing.I'm interesting in what you guys' batter life is.Like if you had 3g off and all those battery saving tips.Like manual switching 3g on when needed etc.Since I want an accurate time to go by because I'm going to do the exact thing when I get mine.Using battery saving tips for max.As well if any hardcore power saving iphone users can post their times as well since I can't find anything on the web relating to that.
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Jul 25, 2010
I rooted and put "Official Froyo HTC Sense ROM". Seems to work fine, however, I have a feeling that battery life is worse, especially when using the net. However, maybe it's just in my head. What are your experiences with battery life after upgrading to 2.2? And please, don't make silly "I surfed the web for 12 hours and still have 25% left" claims Also, I'm not interested in other ROMs, as I want a clean sense experience with no modifications (as close as possible to the way HTC made it)So - 2.2 and battery life: same, worse or better than on 2.1 that came with your Desire?
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Nov 10, 2010
What started as a discussion over at XDA-Developers to try and resolve serious lag problems that some users experienced with their DHD is now proving to be a resolution to most of the problems reported with this device. Apparently turning 'usb debugging mode' ON is the resolution. The thread was first started by a user who noticed that whenever he was experiencing lag issues an Android process called /INIT was taking anywhere from 70% to 100% of his CPU usage. /INIT is a core process to the Android bootup sequence which should go 'dormant' after the bootup itself. What many users noticed after this was found is that whenever the lag problems started /INIT would take some 90% of the phone's CPU usage and not go back to its 'dormant' state. Even when the phone was idle and not being used. After applying the fix many people are reporting the phone running as smooth as they have even seen it running. Also users are reporting that recording video is no longer jerky and they can browse through the gallery smoothly and with no delays. The more relevant yet, and what may prove to be the best contribution from all this, is that some users are now reporting really amazing battery life performance. Its important to say that the so-called 'bug' doesnt seem to be HTC related but rather an Android 2.2 issue, as the performance issues are also being reported on other handsets running the latest Google OS - with some sources reporting that Google is soon to release an update to Froyo 2.2, possibly to resolve this bug. In order to turn 'usb debugging mode' ON go to: menu >> settings >> applications >> development.
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May 31, 2010
So after all the horror stories about battery life I was kinda worried about my new Desire especially as I am a full brightness, 3G loving kinda man. But having got the phone on saturday, I have found it quite good. I mean, I played with it almost constantly for about 8 hours, and I still had 30% charge left.
Normal usage would be maybe an 2 hours or so per day, so i don't think there is any danger I'm gonna run outta juice at work. Also, when sleeping, I don't seem to lose any battery power at all, despite the experiences of others. Anyone else think the battery problems are overblown?
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Aug 21, 2010
is there some kind of battery indicator somewhere in the HTC desire to show how much percentage of battery life is left and all?
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Sep 7, 2010
According to a lecturer at uni, mobile devices use more power when they have to try and hold a connection (wifi or mobile network) that is further away.
Apparently moving your router closer will allow the device to conserve energy by allowing it to power down it's radio because it's not having to broadcast it's signal as far. This also extends to cell towers - it seems living a long way away from one will make your phone work harder to keep a 3G/EDGE/GPRS signal and thus wastes battery. I'm inclined to take his word for it, what with a PhD under his belt on the subject!
Heres a new battery saving tip
I think this holds some truth, when I was in London over the summer I swear my battery used to die so much quicker because it kept having to try desperately to hold onto weak signals being blocked by all the built up areas. Not a lot anyone can do about it but it might go some way to explaining the differences in battery life people are reporting.
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May 24, 2010
I thought I'd share what I have done to extend the life of the battery.
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Aug 12, 2010
I can take no credit for this as I read about it over on XDA but after trying it out exactly as mentioned I can 110% state my battery improved immediately.I was usually getting a day tops sometimes loosing all juice around 11pm after being unplugged from around 7.30am. Well I stumbled across this in a thread discussing the Neophyte Rom im using and it actually worked for me. Yesterday after a good 20 - 30 minutes of phone calls , lots of emails and texts I went to bed at about 12.40 am and my battery was at 60% still. Now today after being unplugged for 2.5 hrs Ive had around 3 emails 1 text and 4 minutes worth of phone calls I'm still on 96%. I have 3G on all the time 1 email account updates every 30 minutes and gmail is push, twitter updates every hour. I dont have wifi on and my screen brightness is 20%. I am rooted and running SETCPU with the CPU down to minimum when the screen is off, but I had that before also. So all in all try it out and see if it works for you, I think it has for me.
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Aug 27, 2010
Here is just a quick photo of my desire just bordering on 2 days use which it did last to 2 Days and 2 Hours post photograph without charging:
This was based on medium to light usage I might add, phone calls, texts, market use, web browsing and around half an hour mp3 player usage. No gaming as I do find gaming using anything other than the "oid" range of emulators kills battery life fast. However heavy use generally nets me minimum 20 hours. Sorry about the dodgy picture, trying to get a decent close up shot using my N95 wasn't easy...
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Oct 27, 2010
I have recently just got a new HTC Desire HD phone, but the battery life I find is quite short. I have gone to 'Settings', 'Location' and turned off GPS, but is there anything else I will need to do to improve the battery life?
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May 31, 2010
I've been using my Desire for three days now, and been quite happy with it. Except for the fact that I can barely get three hours of battery life out of it, with "normal" use. (A couple of text messages/MSN conversations, quick web browsing every now and then). I've tried everything, turning syncs to 6 hours intervals, switching off 3G and WiFi, reducing screen brightness etc.
But the battery still loses about 1% per 1 minute. This can't be normal, right? Is this something that will improve over time? Could I have a faulty battery that needs replacing? I don't have unrealistic expectations for the battery life, just lasting for a full working day is enough for me, and I assume that should be possible.
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Sep 6, 2010
SetCPU claims to be able to increase your battery life by limiting the speed your processor can run at. This seems like sound reasoning at first, but then I remember roughly what a CPU is and how it works...
So let's say you've set a profile so that when the screen is off it will be limited to half the clock speed; around 500mHz. Lets then say your email wants to get updated, so your processor chugs away that that. If it was set to full capacity it may take say, 1 second to complete the task then go back to it's idol state. With SetCPU limiting it, it would take twice as long and would still use exactly the same number of cycles as before.
In fact, when you think about it, it doesn't actually matter what speed your phones processor is running at all the time, what matters is how much work you're asking it to do. Surely the best and only way to increase battery life is to simply have your processor complete less tasks, therefore using less clock cycles? Sending a text message uses the same amount of clock cycles no matter what your max setting is, so as a result uses the same amount of power.
If anything, having SetCPU running all the time just gives your phone more work to do and therefore decreases battery life?
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Aug 1, 2010
PLEASE USE YOUR PHONE FOR FEW DAYS AFTER UPDATING BEFORE VOTING OK so it's early days yet, I'd be interested to hear if the Froyo update has improved your battery life? Or worsened it. Post when you have some results to share.
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Jul 6, 2010
Who will take the battery life into consideration when buying a phone? In my opinion, most people who look out for phones do not consider battery life, most would consider stuff like technology, physical looks etc., but not battery life. Even if there are people who consider battery life, those are just the minority. Hence there are lots of controversy regarding the battery life. Most might agree that the battery is just right, however it is no surprise if people complain about battery life running out too quickly. Is technology improving but not batteries? It seems like phones are getting better everyday, but the battery life has like been stagnant.
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