Database Users

Why does Android on the HD2 eat up so much battery

Hi Guys,
I was wondering why Android on HD2 eat up so much battery. Earlier I was thinking, that android is running of SD card...so its the case. However this is not true as in Android HD2 NAND thread its been mentioned many times...that battery won't increase significantly even after NAND install of Android, so where lies the problem...is it because power management drivers on hd2 android not good enough...just curious?
Regards

There must be a problem with your android build or you are not properly managing your battery life. To enjoy good battery life you need to disable radios via power control, and keep screen brightness low.
Current widget tells me that in standby my hd2 uses 3-7 mA. This draw is fine when compared to similar android devices.
Please provide some details on your build and your reading from current widget.

I think he was asking about how much the HD2 life in android is shorter when compared to WM6.X
If this is the case, this has much to do IMHO about how Android works in its innards.
The Android OS has a way of controlling the apps installed in it, to know which apps do which kind of stuff. Like, when a new app is installed it has a file that tells the OS all features it does, and which of those features can be called by other programs (an example is the gallery 3d, that can be used to open pictures of certain types, every time a file that it can open is accessed android asks [if you have more than one type of gallery] which app you want to use to open the picture).
With this kind of control being done by the system in real time in a way totally different from windows (register??) the OS probably need more awake time and probably use more battery.
With the same amount of time spent using similar stuff in windows mobile and android, WM really rulez in terms of Battery Life. BUT I really prefer the new life Android is giving me in HD2. I'm really happy again, feeling like I have a brand new toy again.
P.S: I'm oversimplifying the way this works, without even mentioning the services, widget services, and several other stuff that are running in the background all the time.

i get about the same battery life in winmo n androud. make sure u have a good radio n compatible rom.

mini_robot said:
i get about the same battery life in winmo n androud. make sure u have a good radio n compatible rom.
Click to expand...
Click to collapse
People always say those things...
Well, let me just say that I'm using one of the best combos out there, and yes I have tested almost all combos you can imagine by my self in my own phone, so I wouldn't rely on someone else's idea of a perfect combo.
Tested more than 10 roms (the list is long so, I wont bother saying all of them, but the most used ones are there, Chucky, Miri's, VBNrom, Dutty's, and several others.
About radio... 2.10, 2.11, 2.12 and now 2.14 I have used all of them too and combined them with each rom...
Right now the best combo FOR MY PHONE and in my opinion is VBN 3.14 and radio 2.14
Multi boot, autoboot android 6sec.
I really think that what is most important is the build, with the same builds, almost all WM roms made for android, and Miri, have the same effect for me, the radios I must say that 2.12 and 2.14 are the best, and 2.14 has better reception in my country, for me.
So, as I have said, FOR ME, the best combo is resumed to VBN 3.14, radio 2.14 and any android build, right now using Desire HD 3.1 from Mdeejay with several different kernells (still testing them)
The kernels and the build are the MOST important thing after you find a good combo.
With the best build/combo and a good WM rom, doing similar things (surfing the net for the same amount of time, phone in sleep mode for the same amount of time,same time talking and etc. the best battery life is surely for WM 6.X hands down.
BUT if you are really getting the same Bat life, you are a lucky guy keep the settings you have, because I must say that I have constantly near me 5 HD2 (from friends), all of them with android now, and every single guy says that the bat life is nowhere near WM 6.x
I could go a full day in WM6.5.3 and have 50-40% remaining in the end of a day with heavy usage. Android, with moderate to heavy use, I'm happy if I can reach the end of the day, and even happier with some bat left
Greetings, Santroph.

I agree battery life is not comparable to WM6.x. People who claim they get the same battery life most likely have a buggered up WM6.x setup or they don't know how to manage power/settings.

Which App are you using to monitor power consumption?
Currently I use PowerTutor.
One time I wondered how 30% of power were lost over night?!
So battery lasts maximum one day until it's empty.
On WM 6.5 it lasts for about 2 days, like santroph already said, too.
A friend of me told me, his HTC Desire has about 80% in the evening. Do they have a better battery?
In usage I have about 540-600mW
He has got 550-650mW
So seems the same power consumption.
Regards
----
HD2

I actually get around the same amount of battery life as well. Just running the stock Froyostone 2.1 without tweaks (don't even know how to do tweaks if my life depended on it). Current Widget shows 0mA when waken up from screen off and hovers at 3-4mA with screen on and idle. Battery drop 1-2% per hour over night.

polo735 said:
There must be a problem with your android build or you are not properly managing your battery life. To enjoy good battery life you need to disable radios via power control, and keep screen brightness low.
Current widget tells me that in standby my hd2 uses 3-7 mA. This draw is fine when compared to similar android devices.
Please provide some details on your build and your reading from current widget.
Click to expand...
Click to collapse
I have TMO US HD2 and I'm using NRGZ 21916 18Sep ROM with 2.14 radio. For android I'm using pongster's HyperDroidSense V1.1. I'm using only 2 widgets HTC Analog clock and Weather channel. I have set the screen brightness on automatic and to tell u its quite dull, not at all bright. I've also disabled all Background sync's and no WiFi or bluetooth is enabled...
I do like to fiddle with my phone every now and then...but its not heavy use, I would say its moderate.
Battery life i'm getting is by the end of day, the battery is drained and have to recharge.
Before this android ROM i tried warrenb213 CM6 9/6V1.5a which is claimed by some user's to give best battery life on TMO HD2. Its stock android rom with CyanogenMod...battery life was little better, but it was slow and it didn't had instant wakeup...it took 2-3 seconds after pressing the button to wake...and personally I prefer HTC Sense UI to stock...
On WinMo my phone easily last 2 days with some battery % (about 20-30) left and can easily give me third day too with light use on 3rd day. And by no means i'm using a minimalist WinMo setup...I have CHT v1.8.5 and the same analog clock with seconds hand enabled.
So battery life on Android << that on Winmo. About the argument that Android uses more battery due to how its build. I don't think its the reason, because HTC's other phone like Desire or Desire HD have the same 1230mAh battery and have similar specs...but there battery life is similar what HD2 gives on WinMo.

Also, you must bear in mind that comparing the HD2 to the desire with battery life, the desire is obviously going to win. The desire has been made by HTC to run Android, unlike the HD2. The desire does have a slightly larger battery (i think) but the desire has been optimized by HTC so that it uses the least amount of battery possible I.e when in standby etc.
I don't know all the specifics but this is what I've found out
Hope this helps
Sent from my HTC Desire using XDA App

^^ya, i do understand...but to me its happening like battery life on hd2 w/ android is like 15 hours from 7am in morning to 10pm in night....WinMo give easily gives like 50-60hours depending on use...desire has similar as i've heard...
Agreed not optimized, but I expect it to give 40hours with full charge?

It is not optimized I guess? I get 6-7 hrs on winmo but 5-6 on android.

We can't compare with Desire, even if the hardware are really similar when looking at CPU/GPU, RAM, radio and stuff like that, we have e HUGE NORMAL LCD screen, that really takes way much more battery than Desire's Smaller Amoled screen.
Recent tests have shown that the new desire with Super LCD (thats way better than ours) do waste more energy than the AMOLED one (despite what HTC has to say about it).
I think that we should compare it with our own phones with WM, and probably with the new Desire HD or Evo 4, which have the same Case/Screen and very similar hardware too (despite Evo beeing CDMA).
IMHO...
P.S: People say that the SD card doesn't have anything to do with the battery drain, and that nand should be the same. Well I can say that this IS and IS NOT true... It all depends on which card are you using. I have 4 MicroSD cards, and they all have different behavior with the same combo/build/kernel/battery, even when in sleep mode with everything else (connections and all) disabled.
I have used WatchDog to see if any program was strangely making this happen, and I didn't find anything at all different when the Hungry SDcard was using that much battery, it was all it's fault.
2GB class 4 -> 5-7ma stable
16gb class 2 -> 3-7ma stable
8gb class 2 -> 5-9ma stable
8gb class 6 -> 5-80ma not stable (can be ina 5-7ma for hours and suddenly be in more than one hour in 40-80ma)
I prefer to use the 16gb class 2 for more battery, since the performance is not that better with the class 6 in android.
I've tested this a lot, and retested.
Greetings, Santroph.

I think that the HD2 battery is shortened by the display (Samsung Vibrant is awesomer in that respect) as well as the processor. If I throttle the processor down to 384mhz and keep the screen at 33% (automatic backlit) then I can get pretty decent battery life from 15-24 hours?

[Q] Which rom has the best battery life

which rom has the best battery life?
currently using the nexus one frg83d v1.8 and loving it, but hating the battery life

wassabi987 said:
which rom has the best battery life?
currently using the nexus one frg83d v1.8 and loving it, but hating the battery life
Click to expand...
Click to collapse
Try the MIUI build (any). If you like the nexus one builds you will definitely love the MIUI build. If you don't like the iphone looking style just install ADW or launcher pro from the market. You will also need to use an android friendly wm rom. Use vbn with excellers multiple build loader both are found in the android development section. When you use the build loader app chose auto boot 3 seconds, ( you will know what I'm talking about when you are in the app). Hope this helps

i tryed just about every rom, got atleast 24hrs with all of them. most were 48+ with conditioning... for me bat life was more an isue of shutdown voltage in the kernel than any thing else..

t1h5ta3 said:
i tryed just about every rom, got atleast 24hrs with all of them. most were 48+ with conditioning... for me bat life was more an isue of shutdown voltage in the kernel than any thing else..
Click to expand...
Click to collapse
that's insane. i only get like 12 hours of active use.

wassabi987 said:
which rom has the best battery life?
currently using the nexus one frg83d v1.8 and loving it, but hating the battery life
Click to expand...
Click to collapse
Strange some people say to switch to that from Desire or Desire HD builds because it has better battery life ?
I am running
MDJ Revolution 1.7 with MDJ 7.6HD Kernel
Radio 2.15.50.14
I find that the above radio is better on battery than my previous 2.12.50.xx
Also the Kernel is better too.
But it depends on how much you play with your phone I get 3 - 7ma drain on my current setup but of course when you start calling or playing games it will easily go up to 200ma.
I find the above rom very stable I can't find anything that doesn't work and its fast enough for me I don't notice any lag or freezing.
I was thinking of switching to your ROM to try but if the battery life is that bad then I may stick with this.

guyz lil but of an update here still on the same rom and i've manged to last 14 hours and i still have 72 % in the battery, with very little usage a couple of texts couple minutes of browsing and some music
im using setcpu greenpower and advanced task killer
ssetcpu is at the minimum
advanced task killer set to auto kill - crazy (means it kills apps as soon as screen goes off)
greenpower set to manage wifi and mobile data, turns off wifi and data when there is low traffic and turns it off as soo ans the screen goes off
its working for me so far so just wanted to post it up incase anybody else wanted to know

Best rom for battery life?

I have been bouncing around from rom to rom trying to figure out which has the best battery life, its too hard to tell. I know that htc sense roms killed my battery off faster, but no matter what it tends to die off much quicker than it did before I put android on it in the first place. Anybody have any suggestions? Thanks

Iamgpc gingerbread is great as long as Bt is turned off when not in use.
Sent from my Nexus One using XDA App

I agree with audioslim. Stable, clean, everything works.
Here's the thread:
http://forum.xda-developers.com/showthread.php?t=909096

I did the same as you, rom hopping...
But everytime i came back to where i am now:
AF403 Desire HD
This is a great rom for your battery.
But as in any rom you should think about what you wanna sync and when.
I use LauncherPro instead of Sense, and I think it better then Sense.

Thanks, so basically 2.2 rom's without sense? And does apps2sd or ext4 have any effect on battery life?
Sent from my HTC HD2 using XDA App

One suggestion for people that are concerned with battery life...
I recently did an experiment of sorts and turned off 3G on my phone. I found that I went from 1 day per full charge to 3 days per charge. I obviously didn't have updates from the email app, twitter, facebook etc., but I just turned 3G on every now and then and updated everything manually. I've since started leaving 3G off whenever I don't need it and generally get 2 days use out of a full charge.
Obviously this won't suit everyone, but if turning off 3G when you don't need it is an option for you then you will definitely experience a much better battery life!

rrodxbox360repair said:
Thanks, so basically 2.2 rom's without sense? And does apps2sd or ext4 have any effect on battery life?
Sent from my HTC HD2 using XDA App
Click to expand...
Click to collapse
For best battery, don't use Sense.
For best internal memory use ext4, this is better then apps2sd.
This does not realy effect your battey

johncmolyneux said:
One suggestion for people that are concerned with battery life...
I recently did an experiment of sorts and turned off 3G on my phone. I found that I went from 1 day per full charge to 3 days per charge. I obviously didn't have updates from the email app, twitter, facebook etc., but I just turned 3G on every now and then and updated everything manually. I've since started leaving 3G off whenever I don't need it and generally get 2 days use out of a full charge.
Obviously this won't suit everyone, but if turning off 3G when you don't need it is an option for you then you will definitely experience a much better battery life!
Click to expand...
Click to collapse
That's what i mentiont in my first post here.
Forgot about GPS, I never have this on, only when nessesary.
My facebook, email and Google sync every hour, the rest once a day.
When i go to bed, I have about 25% left

rrodxbox360repair said:
I have been bouncing around from rom to rom trying to figure out which has the best battery life, its too hard to tell. I know that htc sense roms killed my battery off faster, but no matter what it tends to die off much quicker than it did before I put android on it in the first place. Anybody have any suggestions? Thanks
Click to expand...
Click to collapse
I really love this build "DL DesireZ v3.3 final][DL Data2SD/Ext4 v2.3][Nand/SD/MAGLAR]"
can be found here http://forum.xda-developers.com/showthread.php?t=913597
It's a NAND version but there is SD version as well.. (nand v. download link can be found on page 192 because the author didn't update the post yet)
For me it's perfect. The battery life lasts for a complete day. I listen to music about 2-2.5 hours, use internet for about 20-30 min a day and make a few calls. But I always turn internet off when I don't use it it really saves battery (i think it works for any build). Also 1 day I listened to music for 6 hours, used internet for +-30 mins and there was still 37%. I was really impressed!

Decent battery life
Currently I'm using- MDJ's CyanogenMod 7 v. 2.6 and my way is to switch off data. I'm switching on whenever I need. With regular use of data( switch on/off) my battery last for almost three days.

controlpete said:
Currently I'm using- MDJ's CyanogenMod 7 v. 2.6 and my way is to switch off data. I'm switching on whenever I need. With regular use of data( switch on/off) my battery last for almost three days.
Click to expand...
Click to collapse
Are you serious? I mean I haven't tried CyanogenMod 7 ROM but what I remember back to stock WM6.5 it was easily last for 1 day for me with normal use.. And now I have the same results on Android (desirez v3.3 rom), I'm very satisfied with that. However 3 days it's kind of hard to believe or I'm wrong? Anyway, how much do you use your phone during the day?

timoshina said:
I really love this build "DL DesireZ v3.3 final][DL Data2SD/Ext4 v2.3][Nand/SD/MAGLAR]"
can be found here http://forum.xda-developers.com/showthread.php?t=913597
It's a NAND version but there is SD version as well.. (nand v. download link can be found on page 192 because the author didn't update the post yet)
For me it's perfect. The battery life lasts for a complete day. I listen to music about 2-2.5 hours, use internet for about 20-30 min a day and make a few calls. But I always turn internet off when I don't use it it really saves battery (i think it works for any build). Also 1 day I listened to music for 6 hours, used internet for +-30 mins and there was still 37%. I was really impressed!
Click to expand...
Click to collapse
Yes, DL DESIREZ 3.3 is the best. 2 days for me

DHD battery life

can someone help me with the battery life on my htc desire hd i want better battery life without dissabling features, thaanks in advance

Well, there are many factors to getting good battery life.
Matching Radio/RIL can be a good start, especially if rooted.
Definitely ROM's also have a big part.
Overall usage will also bare a pretty big footprint.
I get about 18 hours on a typical work day, with moderate usage which is generally enough for going to work, coming home, and then still have plenty of battery left when I'm ready to go to bed, which is obviously when I charge my phone.

t.saddington said:
can someone help me with the battery life on my htc desire hd i want better battery life without dissabling features, thaanks in advance
Click to expand...
Click to collapse
Define "disable" and "features".

disable automatic synchronization and shine

+1 there's nothing wrong with setting your Facebook, Twitter, Email, background syncing, weather etc to less frequent but it will obviously give you more battery life than syncing every 5 minutes, common sense really. An app to preserve battery I have found is Apndroid. Have the widget on your home and you can use 3G when you need it rather than not.
Sent from my Desire HD using XDA App

I disable automatic sync of all apps. I only update manually when I use them.

if you can echo all the timings I've been disabled, the sync I maualmente when I access the email application, facebook, etc. .. tweteer

have you rooted your phone? which rom are you using? some details will be appreciated...

tried custom roms? i usually get better battery life with them,
also setting off auto brightness helps a lot for me.

Green power free,its amazing my battery lasts at least 60% longer with this app,amazing get it
Sent from my Desire HD using XDA App

hey, mate... you've got some very generic question... specific info like ROM you're using, Radio, Kernel would bring justice for members to give you some more specific help.
This probably might help:
ROM CoreDroid 7
Radio 12.54.60.25_26.09.04.11_M2 - (HTC Ace Gingerbread S Generic 2.36.0)
RIL_12.54.60.25_26.09.04.11_M2
Kernel LeeDrOiD GB V3.1.6 - 2.6.35.13 BFS KERNEL (thanks to LeeDroid)
Live wallpaper Nexus Revamp
disabled wifi, refresh, gps (used powercontrol widget for accesibility).
After flashing, my battery was drained in 5 hours even after an overnight full charge.
then followed scabes24 tips on FAQs >>> http://forum.xda-developers.com/showthread.php?t=858418 (thanks scabes24)
got some help from this >>> http://forum.xda-developers.com/showthread.php?t=1024867
(thanks to marosige)
Cyanideskittle2010 tips will prove really helpful. tweak around phone settings which are my priorities... things i don't normally use disabled them, enabled them when i need to.
also, installed cpu clocking, initially used setcpu, then moved up to cputuner which gave me more options... juicedefender also can help if you prefer it. setcpu or cputuner are both available in market.
gave my phone 24 - 48 hours, after battery calibration, full batterystats wipe, now i am good at 30 hours battery time.
used to have 36 hours battlife but was using CoreDroid 6.7 then... shifted to CoreDroid 7 because i just love its UI.
hope this helps! credits to all xda cooks & chefs, sergio76, coredroid team etc..

the new honeysense 6.0 rom has a extremly good battery life. i wiped the battery stats and now my battery lasts abaout 2 days instead of one

Battery
Installed APNDroid the other day great way to save battery by turning network on and off.

gazpits08 said:
Installed APNDroid the other day great way to save battery by turning network on and off.
Click to expand...
Click to collapse
Yeah I have been using APNdroid since Android 1.6 and always have it on my Android phones, battery does last miles longer by using the on off widget to disable 3G when you don't need to be using it.
Sent from my Desire HD using XDA App

I propose to flash Android Revolution 5.1.11
In this moment this is the best rom ever
http://forum.xda-developers.com/showthread.php?t=840040

I'm using CM7 Nightly #108 with LorDModUE V4.5.1 (Killersloth's PUV) and Radio 12.54.60.25_26.09.04.11_M2. Great Batterylife compared to stock rom. I lose only 1-2% over night.

Don't want to steal your post but i just have a question haha.
I ordered a battery off eBay the new battery runs on 1600mAh while the original battery goes on 1230 mAh. Should i worry about battery stats i should wipe after replacing the battery or something like that ?

Wickedd said:
Don't want to steal your post but i just have a question haha.
I ordered a battery off eBay the new battery runs on 1600mAh while the original battery goes on 1230 mAh. Should i worry about battery stats i should wipe after replacing the battery or something like that ?
Click to expand...
Click to collapse
I think it's better to wipe when the phone is fully charged (test with currentwidget) but i think to best is to use the original battery. It can damage your phone and I often read that those batterys don't have more power than the original.

Is it normal that from full battery after night I have only 50%? Extremely strange for me... I have ARHD 5.1.10, ANDIDA 1800 mAh

i am using ARHD, it has good battery life. Works for me

[Q] Battery life very bad on CM7

Hi everyone,
I have a big problem of battey usage on Android...
I flashed the NexusHD2 rom in a first time and i realised the battery life was very bad ! (I lost 3% for 5 minute of use !)
I flashed the famous Typhoon CM7 rom and it's the same...
My Radio is 2.15.50.14 and i use CLK.
Thanks for your help

Try a different kernel. That helped in ICS, so after some trial-error you should find a good one.
Sent from my HTC HD2 using XDA

What kernel is the best for it ?

I use Hyperdroid w/ seader r9 kernel. I get pretty decent battery life with it. But you also have to remember that the HD2 is a bit older so it has a smaller battery and less power-efficient parts.

Xeroday said:
I use Hyperdroid w/ seader r9 kernel. I get pretty decent battery life with it. But you also have to remember that the HD2 is a bit older so it has a smaller battery and less power-efficient parts.
Click to expand...
Click to collapse
Agreed, i flashed STOCK Windows Mobile 6.5 from T-Mobile and the battery lasted exactly the same time as with Android on it. I found that the ROM/Kernel combinations only matter a little. The phone alone has horrible battery capacity.

elesbb said:
Agreed, i flashed STOCK Windows Mobile 6.5 from T-Mobile and the battery lasted exactly the same time as with Android on it. I found that the ROM/Kernel combinations only matter a little. The phone alone has horrible battery capacity.
Click to expand...
Click to collapse
Buy a high capacity battery could help a bit ?

zabu64 said:
Buy a high capacity battery could help a bit ?
Click to expand...
Click to collapse
A bit?! Lol that would obviously help a lot. I'm not quite sure how accurate CurrentWidget is, but in terms of standby battery drain I get 5ma drain with wifi on on my phone. On the same settings on my Mum's Desire S she gets 26ma. However she gets great battery life, which I would only guess is due to the larger battery (and the fact that she barely knows how to use the phone, so the screen isn't on very much at all).

Nigeldg said:
A bit?! Lol that would obviously help a lot. I'm not quite sure how accurate CurrentWidget is, but in terms of standby battery drain I get 5ma drain with wifi on on my phone. On the same settings on my Mum's Desire S she gets 26ma. However she gets great battery life, which I would only guess is due to the larger battery (and the fact that she barely knows how to use the phone, so the screen isn't on very much at all).
Click to expand...
Click to collapse
I use batterymonitorwidget pro. And i get around 5ma with wifi and cellular on.

Try using an app called JuiceDefender - it works really well at extending battery life. It basically lets you tweak loads of options to do with data and syncing, so you can have it set that data doesnt run when certain apps are open, or data is off when the screen is off, etc.
There's an ultimate version available, but it is £4.99 from the play store. But I guess that'd be cheaper than a new battery?

The same problem occured to me a few weeks ago. I have been using HyperDroid-CM7 which worked quite decent for 5 or 6 months and had very good battery life. ABut a few weeks ago suddenly the battery life became to awfuly decay, wasting 20% of the energy for idle hour instead of the normal 1-2. I changed the rom to the NexusHD2 ICS port and the battery life slightly improved but rhe problem stays the same. Could it be because the battery itself is broken or some software calibrations are needed (I haben't done any for an year since I bought the device)