If you're running Android on your HD2, then battery will last about half of what it lasted with WM. If you take a Desire device, its battery life will be at least double than a HD2 running Android (proving that it's not a fault with Android itself).
When the question is raised of why Android kills the HD2 battery so fast, the usual answer is: "Android for HD2 is still in its infancy stages".
The question is, do anyone has any clue why in this "infancy stages", battery performance is so poor ?, I mean, if you want to solve a problem, you first need to understand what causes the problem, and I don't think anyone understands why battery life is so poor, so why should we assume there will be any progress in this regard in future builds ?
I do believe that developers will probably be able to activate every feature of the HD2, simply because we understand why some features don't work now (for example: maybe we don't have an appropriate driver). Battery performance, on the other hand, seems to be a much more mystical feature, nobody understand exactly why the performance is poor, or what is needed to be done to improve it...
Noam23 said:
If you're running Android on your HD2, then battery will last about half of what it lasted with WM. If you take a Desire device, its battery life will be at least double than a HD2 running Android (proving that it's not a fault with Android itself).
When the question is raised of why Android kills the HD2 battery so fast, the usual answer is: "Android for HD2 is still in its infancy stages".
The question is, do anyone has any clue why in this "infancy stages", battery performance is so poor ?, I mean, if you want to solve a problem, you first need to understand what causes the problem, and I don't think anyone understands why battery life is so poor, so why should we assume there will be any progress in this regard in future builds ?
I do believe that developers will probably be able to activate every feature of the HD2, simply because we understand why some features don't work now (for example: maybe we don't have an appropriate driver). Battery performance, on the other hand, seems to be a much more mystical feature, nobody understand exactly why the performance is poor, or what is needed to be done to improve it...
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Click to collapse
Because it runs off the SD card
mystik610 said:
Because it runs off the SD card
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What ???, that's the only (or even main) reason ???, the power requirments of the SD card are so much greater than that of the internal storage ?
Many people are reporting poor battery performance even in standby. Is the SD card active in standby too ?
try juice defender it turns off data when the screen is off.
gtrplr71 said:
try juice defender it turns off data when the screen is off.
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Click to collapse
Thanks for the tip, but you are not answering my question. In WM, data is not off when the screen is off, yet battery performance is good. With the Desire device, data too is not off when the screen is off, and battery performance is good too.
Noam23 said:
Thanks for the tip, but you are not answering my question. In WM, data is not off when the screen is off, yet battery performance is much much better. With the Desire device, data too is not off when the screen is off, and battery performance is much better too.
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Click to collapse
Actually Mystik610 already told you the problem. Yes, running Android from the SD card is the problem with battery performance.
Noam23 said:
Many people are reporting poor battery performance even in standby. Is the SD card active in standby too ?
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Click to collapse
Is the system running in standby? Obviously that it is, so the SD card is active also in standby. Equation solved.
Form what I understand it's because cpu scaling isn't fully functional yet... That's why the bottom of the device gets so hot when in use with android. That, along with the SD card and data (witch isn't 100% optimized yet) is why.
these settings worked for me in improving battery life
HKLM\Comm\AsyncMac1\Params
DisablePowerManagement=0
HKLM\Comm\PPTP1\Params
DisablePowerManagement=0
HKLM\Comm\L2TP1\Params
DisablePowerManagement=0
HKLM\Drivers\SDCARD\ClientDrivers\Class\SDMemory_C lass\High_Capacity
DisablePowerManagement=0
HKLM\Drivers\SDCARD\ClientDrivers\Class\MMC_Class\ High_Capacity
DisablePowerManagement=0
HKLM\Drivers\SDCARD\ClientDrivers\Class\SDMemory_C lass
DisablePowerManagement=0
HKLM\Drivers\SDCARD\ClientDrivers\Class\MMC_Class
DisablePowerManagement=0
now with froyostone v1 I lose in standby around 1%/hour...in WM I lose 0.5%/hour
with setcpu set correctly (+the 925mV kernel) and those power management registry tweaks I'm able to do 2 and a half days with my phone, including usage like a few calls, a bit of browsing every day, about 4h of music and downloading mails four times a day.
Thats pretty impressive for me, don't remember getting much more or even more in WinMo.
I could say that SD card is not the only reason. I used Android-based devices (Liquid and Desire) for a while and I can say that android has slight problems with power management itself.
SD card !!!!!!!!
Sent from my HTC Desire using XDA App
Fedr0 said:
Actually Mystik610 already told you the problem. Yes, running Android from the SD card is the problem with battery performance.
Is the system running in standby? Obviously that it is, so the SD card is active also in standby. Equation solved.
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I was under the impression that in standby, the parts of the system still active, run from memory (RAM), and not storage.
I setup 248 only when standby
Sent from my HTC Desire using XDA App
qingcai said:
I setup 248 only when standby
Sent from my HTC Desire using XDA App
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Click to collapse
Something here doesn't make sense. If the main (and surely if only) reason for poor battery performance is because the system works from the SD Card, then why people offer SetCPU as a solution ?, if SetCPU can solve even part of the problem, it means that Android CPU scaling abilities are not working correctly with the HD2 builds. Am I wrong ?
Do people with the Desire device also get the same boost in battery performance after using SetCPU, as the people with the HD2 device ?
I've not noticed any difference in battery consumption using Android over WM.
Chucky Droid ROM
Radio 2.10.50.26
Mattc Leo + Froyo w/sense 1.5b
Great work by the way guys!
jetsetwilly said:
I've not noticed any difference in battery consumption using Android over WM.
Chucky Droid ROM
Radio 2.10.50.26
Mattc Leo + Froyo w/sense 1.5b
Great work by the way guys!
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Click to collapse
I used to get a day and a half in WM, now I get barely half a day with Android.
2 and half days? thats crazy. Can you send your setcpu setting? Even on airplane mode over night i'm losing 40-50%, no matter what i do.
using shubcraft 1.4
Noam23 said:
Something here doesn't make sense. If the main (and surely if only) reason for poor battery performance is because the system works from the SD Card, then why people offer SetCPU as a solution ?, if SetCPU can solve even part of the problem, it means that Android CPU scaling abilities are not working correctly with the HD2 builds. Am I wrong ?
Do people with the Desire device also get the same boost in battery performance after using SetCPU, as the people with the HD2 device ?
Click to expand...
Click to collapse
I can confirm that SetCpu is vital for the Acer Liquid E. My girlfriend has one and I had to flash Liquid Community Rom with SetCpu due to power consumption.
bigfatfrog said:
2 and half days? thats crazy. Can you send your setcpu setting? Even on airplane mode over night i'm losing 40-50%, no matter what i do.
using shubcraft 1.4
Click to expand...
Click to collapse
You should try the tip posted in the other thread
http://forum.xda-developers.com/showpost.php?p=7764579&postcount=11
SD cards vary in class and power consumption. Get and try a class 2 card and you will see the difference. The latest cards are power hungry even in standby. I asked this question of Sandisk and I was told that the info is only available to devs!!!
It causes the problem with Winnow usage as well especially when you install any apps to the higher class of card.
Using a class two I get a day with heavy usage. Right now after 8 hours I have 60% left.
Sent from my HTC HD2 using XDA App
so, we may assume that if we nand flash android rom we can get better battery and performance, sorry for not reading lately this forum but is there flashable android rom for ANY ex-winmobile htc device and how this compares in battery performance with android roms running using haret.exe?
Hey guys, just wanted to know which rom has the best battery life for the HTC Hero. Screw everything else! Actually speed could be a factor.. but I really just need a battery life that will last me forever. Thanks guys
Our phones are known to be exactly great on battery life, i am using elelinux-7.1.0-Hero-v2.6 rom, which is great on battery.. i can last about a day without using apps, just calls and texting... texting i can do unlimited, as it does not take a lot of battery, i have overclocked my phone to 691mhz and it varries betweem 576mhz on interactive and when the phone is off it varies between 352mhz and 576 mhz on smartass. user the HeroKernel elelinux has provided
Elelinux Speedmachine works very well for me. Great battery (well, 'great' for the hero). Speedmachine is also faster/smoother than GB.
If you want your battery to last...do you turn things off like sync, mobile data, wifi? Unless you really need to know if someone emails you or facebooks you i'd turn these off when you're putting the phone in your pocket. With speedmachine and GB's cyanogen mod settings you can put on the notification bar widget. i recommed using this with sync, mob data, wifi etc just for ease of switching them on/off.
mind, what works for one doesnt work for all. experiment.
It'd say VR13 or Cronos Gingerbread.
It's best to try a few for yourself since everyone has different user habits.
http://forum.xda-developers.com/showthread.php?t=932377&page=357
Scroll down to Manneman32's post about batterylife. Relevant stuff.
Which Rom offers the best battery life??
Villain , Coderom , KPE or KPH ????
U have to try what suits u best depends on ur usage , KPH is working good for me.
CODE ROM - IMO.
I have an explanation - a2sd - just one more battery safer, because more data on sd - less CPU using.
Why needs aps on the sd card less cpu?
number of calls to the phone is reduced, due to the speed of the memory card.
So, less calls to the phone - less battery we use.
And, on my expirence, i advised to use SetCPU and Autostarts, to control you cellphone processor and control your apps
Profiles of SetCPU i gives in near topic - here post.
KPH is giving me excellent battery life... my ace last almost 36 hours now with constant sync of 3 mails.
Without data connections, it lasted me a bit more than 3 days
Do not have much experience with the galaxy ace roms, so I would ask those who already know the other roms for the existing model because I'm using the Cooper CyanogenMod 7.2.0 RC1, but I'm not satisfied with the battery consumption of it, for to enable wifi or mobile data network consumption is absurd. What is the best rom to have an adequate intake? Since we do not use the phone for games except ninja fruit and angry birds.
If you have any tips to improve consumption, without the basic features off when not using, I thank you.
For best battery, switch to stock DDKQ8
are you often with no signal ? i also had several battery drain in CM7.2 FAT till i found it was due to low signal. now whenever i'm in a place with no signal i just turn on the airplane mod. the phone has been unplugged 4 hours and just consumed 5% battery witch otherwise would be 60% or something around
The biggest battery drainers in order:
-screen. So lower brightness.
-3g/2g switching and downloading. If bad reception, try sticking with 2g (more than enough for messaging, not enough for browsing). Also a firewall to keep apps you don't want from sending/receiving data.
-WiFi. Music (even on headphones) and other interactive apps (games and such)
Also, stock roms yield better battery at the cost of performance (cm based roms are more powerful usually). Ddkq8 has given me the best battery out of all stocks for my everyday use (3g all day, some browsing, lots of whatsapp and music, no games)
Guedryan said:
Do not have much experience with the galaxy ace roms, so I would ask those who already know the other roms for the existing model because I'm using the Cooper CyanogenMod 7.2.0 RC1, but I'm not satisfied with the battery consumption of it, for to enable wifi or mobile data network consumption is absurd. What is the best rom to have an adequate intake? Since we do not use the phone for games except ninja fruit and angry birds.
If you have any tips to improve consumption, without the basic features off when not using, I thank you.
Click to expand...
Click to collapse
look here, dude: http://forum.xda-developers.com/showthread.php?t=1447938
Hi everyone,
I'm currently ussing the back-to-n00t v9 ROM (KitKat) together with Boeffla Kernel for a pretty long time. It was good at the beginning, although the rom had a few bugs (like the mobile data button not working sometimes and roaming mode disabling when disabling data causing roaming warnings). But for some time already, I'm getting kinda frustrated. The phone likes to lag sometimes, like when going out of some app to the home screen and everything loads again causing a terrible lag, or all the apps close in the background. Also many times when I want to unlock the phone I have to wait a few seconds because nothing works (can't draw the pattern). I'm looking for some simple ROM (not any Marshmallow stuff etc, I want to maintain stability and performance). I'd love to get some better performance, without lagging and having problems with the keyboard (like it's not showing because of low RAM or stuff like that). I'd also like to get some good battery life althought this isn't that of a priority because I have 2 batteries.
I don't want to flash Cyanogenmod because I want to keep the TouchWiz camera and stuff.
Which ROM would you suggest me? I saw some website recommending Revolutionary S5, although I don't like the idea of trying to make an old phone like the some new model, they claim it's super smooth and optimised. Is that true? I don't want to waste any more RAM because of some ****ty features from S5 that I'll never use.
Thanks in advance! Hope you can help me.
same here, I use RR + boeffla but it is sucking one and half battery a day, inactivity battery consume is the same as Whatsapp I use a lot, it seems to be active when not active.
Same problem with Lineage 14.1
Best ROM for me was a stock rooted ROM with unnecessary apps disabled.