I noticed when I go into battery use on Cyanogen and check whats eating up my resources, display is normally like 60%
But when I switch roms to Enomther for example with the same usuage, the display is always around 20-30%..
Whats going on
Is there a bug on CM?
Seriously. Do we really need another battery thread? I think you've posted in on almost every one of them. If your going to help, you'll need to offer up a whole more detail and your findings if you're going to get anywhere. I'm not trying to give you a hard time. It's just an observation.
Many people have gone to sedio for more battery life out of the power sucking android phones to attempt to get the most that they can out of their phones, including myself.
Unfortunately, as seen in this thread: droidforums.net/forum/droid-accessories/9569-seidio-2600mah-extended-battery-77.html
extensive research has been put into the issues that the droid(and im assuming other devices)'s firmware was built to estimate battery for the original battery pack, and can not adjust when a larger pack from sedio(ranging between 1700 mah and 2800 mah) is put in.
There are also no apps to correctly read the batteries, with the closest thing to an accurate battery read is battery left which calibrates itself based off of mv and battery life, which is mediocre at best.
I know there are lots of dev's over here that are significantly smarter and better at modifying the system than most over there, and since alldroid is permanently gone as of now, I figured this would be the best resource for help.
Any dev willing to take on the project, there are many people in the listed thread with research in the project, but not the knowledge to fix the firmware, that im sure would not mind paying for an accurate read app.
I know this is an old topic, but there really hasn't been any advances on this and I am getting annoyed by my incorrect battery readings. Battery left does an OK job, but it still goes down to 1% way before it should, even though I have calibrated it over and over again.
What we need is a simple battery app that will let you define at what voltage your battery is at 100%, 90% etc.
I have a friend of mine that has an EVO and a new Kernel just rolled out for their phone. Battery life is unbelievable 2 days unplugged and 60% battery life still. Proof can be found here: h**p://184.72.239.143/mu/b8fdf248-0e64-0208.jpg
The info for the Kernel is found here: http://forum.xda-developers.com/showthread.php?t=876590
Any way this can be modified for Epic. Maybe some of the info found here can assist with future development.
Xerexis said:
Any way this can be modified for Epic. Maybe some of the info found here can assist with future development.
Click to expand...
Click to collapse
I very much doubt it, but I am in no way any kind of developer, dont even play one on tv.
Anyway, this isnt anything special... I have posted similar results using the DK17 rom with no battery saver programs or killing any applications. You can see my post HERE with screenshots. 4 days, 12 hours at 5% left. Might even get better when the source code drops for 2.2 and they start creating custom kernels.
this was posted on the XDA Portal on JANUARY 14, 2012 AT 7:38 AM BY Liwen..
and i thought i would repost it as it seems lately alot of people are being misinformed about it
Google Engineer Debunks Myth: Wiping Battery Stats Does Not Improve Battery Life...
There you have it, in the title. Google engineer Dianne Hackborn, who has previously explained Android’s hardware acceleration, took to Google+ again to clarify some myths about the Android operating system. This time, it’s a point of common advice that you’ll see in virtually every FAQ thread about custom ROMs and flashing: wiping battery stats in order to improve battery life.
The reasoning behind that piece of advice was something like this: If you, at some point, did not charge your Android device fully (for example, only to 80%), it would supposedly remember that battery level as “fully charged” – in this case, you’d only ever get to use 80% of your battery, which is of course less than optimal. So, if you wipe the battery stats, usually done in ClockWord Mod Recovery, the device would “forget” the previous level, here 80%, and instead charge to the full 100% once again, thereby re-calibrating the battery. Or, as Hackborn puts it in more technical terms:
The battery indicator in the status/notification bar is a reflection of the batterystats.bin file in the data/system/ directory.
However, as she explains, that’s not the case. Because those battery stats, stored in the batterystats.bin file, are only used to maintain information about what is using the battery when not recharging. That is, it essentially holds the information displayed in the Settings > Battery screen. Nothing more, nothing less. Thus:
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
What’s more, you’ve probably noticed that the battery usage data is reset once you recharge your device anyway. From this you can correctly deduce that the battery stats are wiped as well – every time your device is recharged. More or less every day. If there was any effect, you would’ve noticed it without going into recovery and doing that stuff. Typical placebo, eh?
link to XDA Portal post
http://www.xda-developers.com/andro...-battery-stats-does-not-improve-battery-life/
maybe a mod will sticky this as i think it needs to be at the top of the page so people can see it .......
Hackborn, excellent name. Sounds like my kinda girl
Edit; Found another interesting article by her about android multitasking http://android-developers.blogspot.co.uk/2010/04/multitasking-android-way.html
(With a pic)
Robbie P said:
Hackborn, excellent name. Sounds like my kinda girl
Edit; Found another interesting article by her about android multitasking http://android-developers.blogspot.co.uk/2010/04/multitasking-android-way.html
(With a pic)
Click to expand...
Click to collapse
nice find Robbie
hey im gonna pm you about a couple apps you might like
Thank you so much! Even I do not own HTC Leo: HD2 this is still important for us Galaxy Y owners , Can I put this on our Forums and linking a thread here so they know who to thank? and a credits to you also as well . Thanks button pressed.
Sean De Jesus said:
Thank you so much! Even I do not own HTC Leo: HD2 this is still important for us Galaxy Y owners , Can I put this on our Forums and linking a thread here so they know who to thank? and a credits to you also as well . Thanks button pressed.
Click to expand...
Click to collapse
your welcome
yes you can add to to your forum section
no credits to me are needed i just posted it from the xda news page
my htc hd2 wired problem .. my battery drains very fast.. . if i connect power cable after some time phone boots... some times while charging itself my phone switched off.. screen dark.. only liberates no display...
is it problem with my battery..or phone hardware issue...
me changed different rom.. and sd card. two years worked very well .. without any issues.. no Im in big trouble..with this phone
help me
The phone's supposed to turn on while charging when off in MAGLDR, that's completely normal. The high drain could be caused by any number of things and since there are various guides around as to how to reduce your battery drain I'm not going to get into it right now. The other issue you have is (I assume, the wording's a bit difficult to understand) an SOD or 'sleep of death'. Try flashing a newer ROM because afaik this issue doesn't exist on modern HD2 ROMs at all.
cool, good to know.
this is the question about li-ion battary. Smn says that better to charge from 0 to 100. and use from 100 to 0, but theoretically, this kind of battery better be used from 20 for 80 percent. So, there is a lot of things to debate.
Hey all,
I have a pretty dismal battery life with my Nexus 4, currently on CM 10.1. I'm not completely inexperienced with android and linux and stuff, but I have never ever been able to get the crazy battery life that other people post about. Right now, I might get 8/9 hours, tops, with minimal usage.
I have better battery stats, but I am not sure how to use it and haven't found a guide in my searching so far. I also haven't found a definitive "here's the steps to getting the absolute most out of your battery."
Can anybody help me out? What should I do, from scratch, to get the best battery life possible?
Thanks,