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Seems it's normal for Android devices to have poor battery life. So us having poor battery life on our Kaisers is probably due to Android and not the porting of Android to Kaiser.
http://gizmodo.com/5542314/google-i...[of-android-battery]-there-is-something-wrong
According to Larry Page however, if you're not getting a full day's use, there's "something wrong
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buddy of mine has htc hero the phone is awesome if I were on sprint I would buy one, but I have att. anyways his batery life is terrible thats his only complaint
Yes same here, a colleague at work has a Hero, gets a day's use out of it tops, another colleague has flahsed his with 2.1 and says its a lot better, plus he can underclock ther cpu when in 'sleep' mode to save more power, nice.
How is the app called that can underclock in sleepmode ?
thx in advance
My colleague isn't in today, so can't ask him, but a quick google search suggested an app called 'SetCPU' this you can set max and min frequencies at, not free I don't think, but .99p not bad
Actually the poor battery life is a combination of android's power management and the result of us hacking it into hardware it wasn't designed for, however the point is still valid, and is partially due to the differences in the OS itself, which, being linux underneath, has a lot of stuff ticking away unseen.
Best practice, from my experience, is to just plug it into the charger at night, and use it wisely, putting it to sleep when not in use, killing tasks, and not using high drain functions unless needed.
Yea the battery life is dreadful on the android even whilst running on NAND thingy. Before I went sleep it was 81%, when I woke up (i only had a 7hour sleep) it was 65% :|
errrr, 81% to 65% drop in battery really isn't that bad, honestly, when you sleep, your kaiser does not, there are always a few tasks running.
However I usually put my kaiser on charge while I sleep, and I feel it's a good habit to get into with android....
zenity said:
errrr, 81% to 65% drop in battery really isn't that bad, honestly, when you sleep, your kaiser does not, there are always a few tasks running.
However I usually put my kaiser on charge while I sleep, and I feel it's a good habit to get into with android....
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I also do that sometimes, although I have read many places that charging Li-ion batteries more than they need can lead to shorter battery life. I know the batteries internal circuitry cuts the power off at 100% and recharges again when the batterys discharged a bit but from what I've read the best way to do it is to only charge when your battery is discharged a significant amount. I know they're not supposed to have that memory effect, but so many places with different information and I just cant make out which is right and which isn't. Makes me nervous when I'm unsure about small things like this...
Have heard this also, but never had any issues so far, however everything has a limited life, one day my battery or my kaiser will die, i'd prefer it to be my battery
Ah I think I might just switch back to WM6.5 < my battery lasted for so long even when i used it lots. Though once android has a better battery life, I will come back to it! Lol
zenity said:
Have heard this also, but never had any issues so far, however everything has a limited life, one day my battery or my kaiser will die, i'd prefer it to be my battery
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I've always read that's your Li-batteries are best when fully charged all the time (if possible). I never had any battery problems in life.
First, the set up.
I have an Incredible running Skyraider 2.52 with the 2.6.32.15-adrynalyne kernel. I use SetCPU to set some rather aggressive battery preservation, chief among them being the profile that sets the CPU to 245mHz on screen off (using the Powersave scaling so as to eliminate CPU polling). I have Autokiller set to near absurd levels (the Ultimate preset). I even use Autorun Killer to disable some nonsense apps from starting at boot. Needless to say, battery is a priority.
Also, I should note that I am using the 1750 mah Seido battery.
This morning, I charged my phone to 100% (even a little beyond that, as I charged it with the phone off, but not until I hit the green). I unplugged the phone from my car charger at 9:20 AM. Wifi, Bluetooth, and mobile network were all off. I literally did not touch my phone for the next ten minutes, and yet...
By 9:30 AM, I was at 90%!
I quickly started up Froyo Task Killer, which allows me to force stop programs through Android's own task management. I closed several useless but likeable apps (like ONN and G4) and put my phone back in my pocket.
By 12:47 PM, after not touching the phone again, I was at 80%.
Clearly, you can see the difference in battery usage while otherwise in standby.
Is this a clear case for killing tasks, or is there something else at play? I know that task killers are a cause for serious debate, and 2.2 doesn't play nice with them, but this is a pretty weird case.
You're making an assumption that the battery discharge rate (or rather the displayed rate) is linear. In my experience, this is not the case.
You make an excellent point. However, in most ordinary circumstances, and certainly while running stock Eclair, I usually found that the first 10% battery drain took longer, certainly longer than 10 minutes.
Either way, 1% per hour is, all strange battery magic aside, pretty remarkable for a phone that is in standby with screen off in pocket. Especially when given the lengths I've gone to in attempts to extend said battery life.
once froyo hit i uninstalled my task killer.... haven't looked back since.
I currently run SystemPanel by NextApp.
It will prove to you that task killing is practically a placebo but I highly recommend it just to be aware of whats ACTUALLY killing your battery.
I use the stock battery and the OEM 1500mah. I am pretty happy with what I can get out of the extra capacity battery.
Try turning off 3G when you don't need it using the HTC widget.
If you can't stand the stock apps that always start up on your phone but don't want to delete them do as I did and get the full version of titanium backup (3.99) and freeze all the apps. Out will pretty much just like the name says, freeze the apps. You can then thaw them out when you need them.
I got almost 2 days up time and like 12 of those were up on the 1500 battery. Now I have the 2150 i am at 50 hours up and 10 hours awake with still 50 percent to go, that's first charge too, can't wait till it breaks in
Oh and I was reading somewhere that one of the roms has a problem like that. It might be the skyraider
Sent from my Incredible using tapatalk.
mihneagabriel said:
If you can't stand the stock apps that always start up on your phone but don't want to delete them do as I did and get the full version of titanium backup (3.99) and freeze all the apps. Out will pretty much just like the name says, freeze the apps. You can then thaw them out when you need them.
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Autostarts would probably be an easier way of doing this.
kensikora said:
You make an excellent point. However, in most ordinary circumstances, and certainly while running stock Eclair, I usually found that the first 10% battery drain took longer, certainly longer than 10 minutes.
Either way, 1% per hour is, all strange battery magic aside, pretty remarkable for a phone that is in standby with screen off in pocket. Especially when given the lengths I've gone to in attempts to extend said battery life.
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why would you bother having a smartphone if your intent is to leave it in the pocket? I get about 24+ hrs uptime one one charge (stock bat). Generally on WiFi, GPS, and Max Brightness for half of it.
Charge at work since I'm at my desk and no problems. Battery life is great, but if you don't want to use the phone in attempts to get max life, seems quite pointless to own such a powerful device.
Skyraider 3.1
You can go into battery info in the settings and see what is causing battery drain.
In my experience, most drain is when I'm inside a building with poor reception and my phone is on overdrive trying to find signal. Usually I turn on airplane mode and use WiFi if that's the case.
Sent from my ADR6300 using XDA App
Maybe its the kernel. Also I would stop killing the apps, not to save battery but because since they were stopped by the user, the Android system might start them up again almost instantaneously. But this depends on core processes and weather Android is done processing any info or other stuff from that app.
Sent from my ADR6300 using XDA App
MMBosstones86 said:
why would you bother having a smartphone if your intent is to leave it in the pocket?
Skyraider 3.1
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I am not aiming for battery life alone, but I like to leave work and not need to recharge for an hour before I head out. I leave it in my pocket at work because, well, I'm at work. Although I do usually get in a few levels of Angry Birds or Shoot U.
The question is, how can I minimize battery use when my phone is idle so that I have the battery to screw around with it when I want to or have time.
Sent from my ADR6300 using XDA App
mihneagabriel said:
If you can't stand the stock apps that always start up on your phone but don't want to delete them do as I did and get the full version of titanium backup (3.99) and freeze all the apps.
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I never knew what that did. I knew the feature existed, but hadn't bothered looking into it. I already bought the full version for totally hands-free installs, so I guess I can now take care of Peep and Flickr.
sl0wd0wn said:
Autostarts would probably be an easier way of doing this.
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I had never heard of Autostarts. I seem to find that any apps that aim to disable startup entries always fail to list the apps I am most interested in blocking, but for 90 cents, I am definitely willing to give it a shot.
Edit: I haven't had a chance to determine its effect on battery life, but Autostarts is brilliant. It makes so much more sense to actually change startup entries than to try and stop a task after it starts. I also was unaware of how many events trigger apps to start. That is one powerful app.
Sent from my ADR6300 using XDA App
The 10% drop at the beginning has nothing to do with apps or task killing. It's a bug, the battery isn't telling the software the correct percentage it is at. Killing apps won't do anything to fix it.
If you want to 'fix' it, do a bump charge. Turn off your phone when it hits green, keep it charging till it hits green again.
Hi
Had my phone a little over 24 hours and I may have a very poor battery
I have a LIVE screen on the one with the water and the leaves plus, I haven't made or received any calls but I have used it a little for internet and a few text messages
The green bar was on full about 5 hours ago and if I had to guess how long my use has been I would say 30 mins in total of the 5 hours, now my battery is indicating less than half full
Imagine if I was out all day making and receiving calls?
Does this sound normal?
This is normal for the first week or two , the battery is adjusting itself to your needs
Sent from my HTC Desire using XDA App
It's absolutely normal and you'll really notice a difference in about ten days, a couple of weeks the most.
That said, live wallpapers do use more battery. I much prefer a static dark one
adding to that make sure your phones nicely drained before recharging to ensure you get a nice full charge for next time... i took my desire's battery at least 5 days to start having a long term charge
bettery
same here took a week also what really helped me is having advanced task killer and setting it to kill unwanted apps after i lock the screen
i dont think you should use task killer, the apps will end them selves, i used task killer and got alot of force close after and errors etc
however force stopping unwanted applications is also good.
Android system 30%
cell standby 25%
phone idle 17%
android OS 15%
Display 11%
Internet 2%
5 H 55M 55S unplugged, hahaha no joke its all 5's
and now my battery is almost dead surely this cant be right
has anyone ever been given a replacement battery for their phone or do they ask for the phone to be returned if this is infact a fault
Battery sucks, phone is power hungry. Get used to it
I've had 2 desires since a week after it was released, i can count on one hand how many times I've got through a day without plugging my phone in.
I get about 2 days on my phone if I don't mess around with it a lot or get many calls. I normally plug it on overnight. Every night.
Nowadays that seems normal for a smartphone. Personally I think the battery life is slightly better than the iPhone 3GS.
Angry Birds means it lasts about 4-5 hours...
Sent from my HTC Desire using XDA App
It's all down to how your using your phone. If you have a live wallpaper and many widgets and apps that run in the background like running in the notification bar, then yes, your phone will die pretty fast. Also it depends on how much CPU your burning. When I first got my Desire, I was like WTF. This is useless battery life and was starting to play hell. Now it's fine. I can leave it for 2 days easily if I just text or flick through settings. It just depends on what your running.
BTW, no one should have a task killer. It defeats the purpose of Android. You can get a lot of force closes and other things. Just leave them alone and let the OS handle the apps. Android does end the process if it's idle, eventually, but it's not using anything really other than a bit of memory just to keep it going a little.
As GoogleJelly pointed out, it really does depend on what you do with your phone and what's apps/processes are running on it while the device is using battery. Even I found the battery life pretty poor at the beginning...I found it quite annoying having to charge this thing nearly every day.
After some light tweaking, I managed to get the battery life to go over 3 days and I now have no reason to complain about my phone Mind you, I'm not a heavy user....As for background apps, I think i've got about 5/6 apps running at a time...
EDIT: I've attached a screenshot of my battery meter.....
What app are you using to view your battey history?
I also tested task killer when I got my phone. I thought it was fixing battery life, but after bedding the phone in a bit I took it off to see how much difference it would make and I didnt notice any difference at all...
Sent from my HTC Desire using XDA App
GoogleJelly said:
What app are you using to view your battey history?
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I configured Quick Battery app to go to battery history from my phone settings every time I tap on it. You can view your battery history through:
Settings > About phone > Battery use.
If you want the graph, just tap on the top layer which shows the length of time you've been on battery.
EDIT: This works for Gingerbread based ROMs (it's the standard feature lol)...can't remember this being on Froyo.
infinityharry said:
adding to that make sure your phones nicely drained before recharging to ensure you get a nice full charge for next time... i took my desire's battery at least 5 days to start having a long term charge
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This is irrelevant with Li-ion as this is a myth from the ages of NiMh batteries. Your battery will not get ruined if you don't discharge it completely before first charging.
Sent from my HTC Desire using Tapatalk
efcgenius said:
Android system 30%
cell standby 25%
phone idle 17%
android OS 15%
Display 11%
Internet 2%
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great guideline, thx
Evil_Cid said:
I configured Quick Battery app to go to battery history from my phone settings every time I tap on it. You can view your battery history through:
Settings > About phone > Battery use.
If you want the graph, just tap on the top layer which shows the length of time you've been on battery.
EDIT: This works for GIngerbread based ROMs (it's the standard feature lol)...can't remember this being on Froyo.
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Ah right, cheers for that. Didn't know it was all built in
One of the main reasons why new smartphone owners experience fast battery drain lies in the simple fact that they fill up seven homescreens with widgets that sync over mobile internet every hour or even more often, which really kills the poor juice like a massive gas leak.
After about half a year of use I've reached a stage where I use just 2 screens on my Desire (CM 6.1.1), of which page no2 is a full 4x5 agenda and Page one has just one actively updated widget (home weather).
Combined with restricting network usage of random apps by means of DroidWall and underclocking the processor at certain parameters (eg. battery <50%) the phone lives for 2 days pretty easily, with moderate browsing, music etc included.
But TBH I've really decided that the battery usage is absolutely random because some days it just drains like there's no tomorrow with no apparent reason that I've been able to identify. Carry a spare microUSB wire tbh :/
I read so much myths in this thread concerning Li-Ion batteries.
First of all Li-Ion batteries do have instantly the capacity they are intended for. Even 5 charges won't change that. The only thing which can change over time and charge-cycles is your phone recognizing a new voltage level as "full" (read more: "calibrating htc desire battery") or you playing less with the phone or having power-consuming apps uninstalled.
Also a full first charge is not necessary. This "requirement" are from past days with NiCd or NiMH battery-types.
Read more: http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
System of a pWne!^ said:
I read so much myths in this thread concerning Li-Ion batteries.
First of all Li-Ion batteries do have instantly the capacity they are intended for. Even 5 charges won't change that. The only thing which can change over time and charge-cycles is your phone recognizing a new voltage level as "full" (read more: "calibrating htc desire battery") or you playing less with the phone or having power-consuming apps uninstalled.
Also a full first charge is not necessary. This "requirement" are from past days with NiCd or NiMH battery-types.
Read more: http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
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The calibration during the initial week or so of using the phone arises from phone-side calibration, not the battery itself, which is why deleting battery stats from recovery can at times resolve battery issues :V
Phone didn't last half a day after flashing CM 6.1.1; after a couple of days I charged it to 100%, deleted the stats and voila, it's about as perfect as a terrible smartphone battery can get.
I have poor battery life on my desire, it barely lasts 7 hours. I have tried wiping battery stats etc, and have the screen brightness at 50%. I have read that some kernels can greatly improve battery life, is this true? If so, which would you recommend, and do I just flash it like I would a rom? I am using the latest miui.
Cheers,
Steve
Sent from my HTC Desire using XDA App
They can but finding the underlying app causing the phone not to sleep would be what I'd be looking at. Remove all installed apps and add them 1 at a time and see how the battery goes
EddyOS said:
They can but finding the underlying app causing the phone not to sleep would be what I'd be looking at. Remove all installed apps and add them 1 at a time and see how the battery goes
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Yeah i've tried this, there's nothing draining the battery.
Not at all
Such battery drainage can only be induced by either heavy usage, or phone not being able to go to sleep.
The differences between kernels in custom roms are merely a shades since all of them are pretty much battery efficient. You won't miraculously jump from battery life of 7 hours to 30 hours. Concentrate on your apps or even better, third party Widgets.
Sent from my HTC Desire using Tapatalk
Probably a hardware fault then - the OS on it's own with no apps installed shouldn't drain a battery that quickly. Did you also turn off the sync options to test that theory?
Personally sounds like a knackered battery/phone
If it isn't apps/widgets (they are the culprit for heavy usage) then it would prob be a faulty battery. I did a little test last month to see how much battery I could lose in 24 hours. I lost 8%. I guess it could be a baseline to start off with.
Hello Champs.. I am first time user to this forum so pls excuse any idiot questions if it may seem.
I tried to go through threads to find answers but got completely confused, so though to put my question in simple words here.
I have Desire HD running task killer and Juice defender ultimate with extreme power saving option set and also optimized settings but still my phone don't last more than a day of normal usage. I just check emails, read news and call.. I do not play games and use any CPU intensive app. Phone is not rooted and running 2.3.5v of android
One of my friends told me after flashing ROM, battery power is improved by 40% in case of his tablet, so I am wondering if there is any suggestion for me to use for my Desire HD mobile. I have tried all options at application and settings level to improve the battery life.
As I am not too techincal in this field, if someone could write me few high level steps from start to end to get better battery life ROM and / or jellybean on Desire HD, I'll try to find out low level details of those steps in this forum and root (and flash) my mobile.
My sole requirement is to get as much battery as possible and if possible, some latest android version (4.1 or 4.2) to avail the new features.
Also, would there be an option to take the snapshot of current mobile setup in case if rooting / flashing goes wrong, I could revert back to the current version without loosing settings / data.
Thanks for your help.
two things, go to settings>about phone> battery
Or something like that. Take screenshots of your battery consumption, and the amount of time for each. Without that we can't know what's really causing your battery drain.
That said, a day of use will pretty much wind down your phone, the DHD has a very poor battery, decent sized screen, and most modern smartphones don't last terribly long anyways. However, you said you weren't using it too hard, so I'm not sure what it could be
As for juice defender, make sure that the intervals are set to no less than 15 minutes. 10 minutes pushing it. if you set it to 5 minutes, your phone will constantly be waking up from sleep (ultra battery saving mode), and constantly enabling and re-enabling radio. That'll cause more drain than it will save. At 15 you'll notice definitive increases, and at greater your battery will only get better.
Get rid of the task killer, or disable autotask killer and keep task killing to an absolute minimum. Never kill all your user apps at once. Kill only very large resource hogs (e.g. after playing a game, kill it). An autotask killer is very bad for your phone, and for your battery. Linux naturally tries to keep as many processes 'running' or cached in the background, using up a lot of your ram- it makes multitasking better, so in linux this is a good thing. With windows, it does the opposite, and if you run out of RAM you're screwed. A task killer will try to ruin that behavior, and in the end both performance and battery life will suck. It hurts battery life because after you kill that app, it'll just restart itself in the background- using more CPU therefore battery. Plus it also wakes your phone up from sleep when it needs it. I would only recommend a task killer for a phone with 512mb of RAM.
If it's an older battery, you could also have lost a lot of it's charge. I recommend installing battery monitor widget, and letting it run in the background. It'll estimate your mAH (battery capacity). If it's over 1,000, you're fine. If it's around 800, not bad, still doable. If it's at around 600, I would recommend going in for a replacement battery. I'm using an Anker 1500 (amazon), and I highly recommend it. Mugen 1600 is very good one, but it'll cost you a lot more money. I would not recommend an original HTC one.
finally, installing a custom ROM may or may not help battery life. With HTC Sense based ROMs, I've noticed a battery increase. In AOSP (unmodded, as google intended) gingerbread ROMs, you'll also notice a battery increase. With AOSP ICS, JB4.1.2 and 4.2.1 battery life is hit and miss, some ROMs will get you better battery, some will get you worse. You'll need to experiment around with it.
Also, yes you can backup everything after you install a custom recovery. I recommend looking up AAHK (advanced ace hack kit) on google and youtube, as well as rooting and S-OFF in general on youtube.
Thanks for your reply... Really appreciated. I'll look at the suggestions and see if it is unnecessary to root if 1 day battery is expected.
Do you think recommended high power battery actually improves usage time or people just compare their used up battery with new high capacity ones and think they hv got more juice in it. If high capacity ones really give another 2-3 hours of browsing as compared to OEM 1230 mah battery, I would rather buy it instead of flashing Rom.
Sent from my HTC Desire HD A9191 using xda app-developers app