Does anyone know why the battery meter on gingerbread roms like cm7 doesnt actually reflect the battery percentage? A notch might be missing and my batt is at like 60%, if i flash a new battery pack will this be fixed?
the stock battery display icon only has 5-6 graphic changes from full to empty, it wont reflect a true accurate reading as the battery drains but it will show you a rough picture of remaining power, if you flash a battery pack that has 20-100 images then you will get a more accurate representation. i'm not familiar with any for GB roms but you can try to find one
Most Gingerbread Battery Icon packs have on average 100 . This is not listing the "Dead" battery icons and so forth or animation of the battery charging. From what little bit of theming I have played in most Gingerbread battery Icons drop every 10% for what remaining battery life you have . Meaning 100-90% will show the same graphic till it falls into the next range . Compared to stock its alot more acurate and kinda gives a not in your face slap of a sudden drop like the stock battery icon does . With Roms and Kernels being developed as well as other little things added to these packages the Evo is becoming more battery efficent then it was when it was first released . I currently have a modified Gingerbread notification bar installed on Myn's RLS5 and it shows battery life quite well . Another thing to bare in mind is the Icon itself is only a certain size . Thus showing actual 1% drops graphically would be a bit difficult so why I think most set it up for 10% drops much like the stock battery (uptime , awake time) screen shows in 10% steps .
SouthernEvo said:
Most Gingerbread Battery Icon packs have on average 100 . This is not listing the "Dead" battery icons and so forth or animation of the battery charging. From what little bit of theming I have played in most Gingerbread battery Icons drop every 10% for what remaining battery life you have . Meaning 100-90% will show the same graphic till it falls into the next range . Compared to stock its alot more acurate and kinda gives a not in your face slap of a sudden drop like the stock battery icon does . With Roms and Kernels being developed as well as other little things added to these packages the Evo is becoming more battery efficent then it was when it was first released . I currently have a modified Gingerbread notification bar installed on Myn's RLS5 and it shows battery life quite well . Another thing to bare in mind is the Icon itself is only a certain size . Thus showing actual 1% drops graphically would be a bit difficult so why I think most set it up for 10% drops much like the stock battery (uptime , awake time) screen shows in 10% steps .
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Mind sharing the battery for myns the only thing I hate about the Tom's is the battery after 49% is yellow and make it seems worse than what it is
Sent from my PC36100 using XDA App
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Dear all,
I have a EURO Desire Z.
When I use a Sense based ROMs (in fact, stock or Virtuous) I have a fairly nice battery life, that is, in the 30 hours range.
However, with any kind of CM6 or CM7 (or even Vilain ROMs), the battery life is really reduced. Like 12-15h max (almost without any use).
The battery monitor will show that most power is eaten by Cell Standby, Wifi and Bluetooth. I tried different radios, but the result is still the same. I also tried various CPU governor settings, but it didn't change the big picture.
Any idea on what may be wrong ?
I found that CM6.1.1 did that to me too, but reverting to 6.1 got me very good battery life. While I like the Sense widgets, I much prefer vanilla for everything else so i have't lived with a Sense rom long enough to see if it gets better battery life than CM6.1
nbougues said:
Dear all,
I have a EURO Desire Z.
When I use a Sense based ROMs (in fact, stock or Virtuous) I have a fairly nice battery life, that is, in the 30 hours range.
However, with any kind of CM6 or CM7 (or even Vilain ROMs), the battery life is really reduced. Like 12-15h max (almost without any use).
The battery monitor will show that most power is eaten by Cell Standby, Wifi and Bluetooth. I tried different radios, but the result is still the same. I also tried various CPU governor settings, but it didn't change the big picture.
Any idea on what may be wrong ?
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I have the exact same issue as you with CM6 (retarded <12 hr battery life with light-moderate use). After seeing your post, I've decided to try a sense rom for myself. Will post results tonight or in a day.
Nope. Still drains like ****.
This may be teaching you to suck eggs, but are you recalibrating your battery after flashing a new ROM?
I found my battery life was immediately atrocious after flashing, until I completely drained the battery til phone wouldn't switch, then charge while switched off, until green light + a couple of hours. Then wipe battery stats in ClockworkMod.
After this, I found my battery life on CM 6 was really good.
setspeed said:
This may be teaching you to suck eggs, but are you recalibrating your battery after flashing a new ROM?
I found my battery life was immediately atrocious after flashing, until I completely drained the battery til phone wouldn't switch, then charge while switched off, until green light + a couple of hours. Then wipe battery stats in ClockworkMod.
After this, I found my battery life on CM 6 was really good.
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No, I never did that. I'm not really familiar with the "battery calibration" stuff, but it sounds like something that will help to get good linearity in battery capacity estimation over time.
What I'm pretty sure, though, is that at some point (like 10-12h), the phone turns itself off. I believe that it has to do with insufficient voltage at battery terminals, rather than some sort of estimation of remaining capacity.
Or am I totally off ?
I was wondering why the samsung epic screen consumes so much battery life. I have my screen fully dimmed and on top of that the screen filter is around 50% and my screen still comsumes 80%-90% of my battery life. Is anybody working on any mode that will help this problem or is it because the samsung epic has a Super Amoled screen which comsume more battery life. Great phone I am just hope somebody can mode the screen consumption of the battery life. The battery is good with a custom Rom I just wish it could be even better.
You're missing the point. The fact the screen uses 80% of the battery means nothing more than that it draws more power than any other part, there isn't anything wrong with that. The screen is on so it uses power, pretty simple. Now if the radio was using 90% of the battery that would be bad.
063_XOBX said:
You're missing the point. The fact the screen uses 80% of the battery means nothing more than that it draws more power than any other part, there isn't anything wrong with that. The screen is on so it uses power, pretty simple. Now if the radio was using 90% of the battery that would be bad.
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Well that is true. I was just wondering if they cause make the battery consumption from the screen a little bit less taxing. I am grateful the the Radio is not comsumption a lot of the battery life.
Weird thing I had on my htc hero before an update was screen battery use was super high too (same levels seen here). Then after some update, it was a much more normal range (somewhere around 30-40% maybe?) consistently. I'm wondering if it's really that much of the power usage or just a bug in the reporting. Butt smoke is done blowing by me now.
The more it sits idle, the lower the percentage gets. It's a relative statistic.
Well, I guess its because the radio uses a lot less, it has to add up to 100 percent, and if you're using the display that time, then its probably what is using up the most battery
gokuman56 said:
lol.. super almond............ I like the new name he gave to the screen
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Lol I hadn't even noticed that one.
My screen takes up about 90% of the battery usage as well, but that is only since Froyo. On Froyo, the battery usage only shows Display at about 95% and Cell Standby at the other 5%. On Eclair it would show everything else that would run throughout the day like live wallpapers and whatnot. Froyo only shows Display and Cell Standby, but oh well, it doesn't mean that it's killing your phone quicker, since I upgraded to Froyo and got roms and everything installed, I get about twice the battery life.
I think you have to be NUTS to not like the Almond screen !!!
The battery life is good.
jdelano said:
I think you have to be NUTS to not like the Almond screen !!!
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LOL!!! The joke is on me!!! I do love the display. I am just getting greed for more battery life that is all.
Yeah, as was stated above, it's just a relative statistic. The screen would naturally take up more of the total 100% allocable battery life. Makes sense, since the screen is always on when you do anything to your phone. Try restarting your phone, then play your music player for a while with the screen off. You should see that statistic change considerably.
The reason the screen takes up such a large percentage of battery life is because they made the rest of the phone so efficient!
I barely used my phone yesterday. It has been on for 1 day 17 hours since I swapped batteries and I still have a 36% charge. The screen has been on for 1 hr 59 minutes in that time, but it accounts for 71% of my battery usage. When you aren't seeing the TWS bug, everything else in your phone draws an incredibly small amount of power which makes the screen look like it is using a lot of juice.
its the price you pay for hd quality i guess
Screen filters use more voltage to apply so don't use them. And it is an app that is always running. This is an amazing screen.
I'm on Runny 3.3 which I have had flashed for about a week.
Wiped completely before flashing (Full wipe EXT4 zip), never had this problem before.
Anyway, in this week I assumed that the battery usage would level out. I tried calibrating it, but display always takes up 93% of the battery usage.
Even on Runny 3.1 I had brilliant battery life. This problem has only occured on this ROM. I lost 7% from full in 20 minutes when I was using my phone for relatively basic tasks.
Should I reflash? What kind of values are you getting for display battery usage?
I have a solution my friend
I suffered this problem like a few days a go.
what you need to do is take a look at this post i hope it'll help
http://forum.xda-developers.com/show...26016#16808950
Thanks, but the link doesnt work lol
a wee bump for any help....
I changed the kernel to the Unity kernel and the display is now using 60 - 70 odd percent. Can't really test it though since its been plugged in since I flashed it. Will see how it goes tomorrow and report back
Please let me know, my battery lasts 8 hours with moderate 3 hours of onscreen time (at best)
For those who suffer this problem check out memnocs perfect battery guide
Btw I'm sorry the link didn't work. As a said take a look at memnocs guide its in dhd development page
The kernel didnt help much, the display usage has gone down but the other things have gone up lol a lot more than I expected. Will try that battery guide now.
lol what do you expect? the display is the biggest battery-eating-monster in our phone. it's completely normal that it drains that much.
fyi: my phone drains ~250-300 mA with display on, lowest brightness level, ~500 with maximum brightness level and 1-8mA in standby.
so: ~500mA/h and we have a 1200mA/h (probably less than that, since Li-Ion batteries lose capacity after some months) battery -> about 2h display on at maximum brightness
its weird because this "problem" occours only with sense rom.
On Cm7 and miui the screen was under 50% of battery usage...
Most non sense roms don't calculate ic correctly.
You can use an app called battery monitor widget to watch your battey drain if you want to.
Sent out of my Free Candy Van.
I see countless comments with people complaining about battery life not being good enough in most threads, and it being affected positively/negatively by updates.
I'm aware a lot of ROMs can have a very positive effect on battery life but I am more interested in the general overview – your battery life's life if you will! The reason I ask for your experiences is that I would like to qualitatively collect a bit of information from a fair few people and see what's to be seen.
It's worth noting that my latest HOX's battery life is exceptional and I believe it's down to a simple life/career change. It's really nothing new to someone who knows their fair share about batteries however I would be interested to compare.
So, list the times you wake up, take your phone off charge, put your phone back on charge, and go to sleep. If you can it would also be nice to know what your battery percentage is at certain points. It would also be interesting to know what hours you do on an average working week and in what sort of work environment (home/architect, office/marketing, shop/clothes retail etc).
If anyone can remember the things off the top of your head, even rough estimates just chuck then in the thread. I will then compare them all to my own personal habits.
Sent from my faster than SGS3 HOX.
Personally for me ICS was 4.0.4 was perfect, after update to JB it's really bad. On ICS i was loosing 1% of my battery during whole night on JB i can even loose 10% ; d. Overall battery drains faster during usage... all stock.
There's already a thread for battery stats.
nitrous² said:
There's already a thread for battery stats.
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Fantastic. I'm more interested in people's actual habits not stats about their battery because it only tells one half of the story. Like I mentioned this is more of a qualitative approach, so less battery stats.
I should of assumed that most people would be like more yourself so I will get straight to the point.
I have the benefit of working at home which means I can charge my phone whenever. I'm not forced to charge it over night; having it over charging for excessive amounts of time. I charge mine in the day and as a result I'm conscious when it hits 100% – I then unplug it. Other than natural degradation, I doubt I have ever damaged my battery in any way which has left me with a great battery life.
I was quite interested if most people charge their phones at night, go to sleep, unplug their phones when they wake up etc. This will severely accelerate the degradation of the battery.
well for me, ICS was bad...im using custom rom and various kernel to see which has the best battery life...all bad accept ncx 0.99....well some of the time its ok but some not...the battery percentage in ICS if not using will stay at 1% but for a 5 minute use, it will drop 10%...but amazingly, if you keep using in screen on, wifi or whatever, it will not drop that fast, well for me its ok....but now i have updated to JB still in stock, and the battery life is great.. i have watch HD movie using MX player in 2 hour and only drop 20%....when in ICS about 80%...big difference....i think stock kernel is best...
Well for me it's decent i mean yes it could be better but it's okay... heres my usage: i take it off the charge around 10 am when i wake up or so and it's off the charge till the next day morning with avarage 45-50% battery left and screan on time avarage 2:30 hours - 3 hours, sync with FB , hotmail and weather is On all the time as well is the wi-fi even when i sleep, my reception aint so great tho , around 2-3 bars top 4, 2g network, anyway my tops on the screan time would be around 6 hours with around 30% brightness idk how that guy managed to achive 6hours 20 mins on a single charge on medium brightness , could be jelly bean or maybe partitial charges ( i'm on ics btw ), anyway hox battery aint so bad as ppl may think, besides if you're lucky enough you'll get hox + battery into your hox ( 2100 ma ) which should provide avarage 6 hours + screan on time, tho i bet we could get around 8 with that battery. Hope this helps.
Ive got arhd and i got to say Im happy with my battery life, first I wasnt, when I went through a couple of charge cycles it got better and better. Now I can do 3.5 hours on screen time playing games and use it for atleast 24 hours with a mix of everything with watching videos to on the bus lol. So mines has been really good.
Battery has been pretty bad on any ROM. Now that I have ICJ421, my battery is near perfect. Yesterday I got 14h with 3h22m Screen On time.
Sent from my HTC One X using xda app-developers app
http://imgur.com/QMB1kaF
Any solutions to this? I'm trying to use a battery calibration application, but it doesn't seem to be helping all too much.
First thing: The rom you're using, battery drain is popular problem on ics.
Second: Setting CPU and screen light to lower values, Turn Wifi on only in need, background data use is also non-friendly to battery
Third: you can buy bigger battery, our Gio's one is not that good
Fourth: You can install some tweaks from xda(like crossbreeder or fly on mod) but don't expect miracles.
A6ekAK said:
First thing: The rom you're using, battery drain is popular problem on ics.
Second: Setting CPU and screen light to lower values, Turn Wifi on only in need, background data use is also non-friendly to battery
Third: you can buy bigger battery, our Gio's one is not that good
Fourth: You can install some tweaks from xda(like crossbreeder or fly on mod) but don't expect miracles.
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No, it's not the battery drain, it's the battery calibration.
I can look at the phone while its charging and see the battery percentage go from 72% to 78%. And no, I dont mean 72,73,74,75,76,77,78, I mean 72 straight to 78. Also, battery percentages also drop from 100-80 in the first few minutes then 80-70 take eternity. The calibration is awful.
Think of what you're talking :d
That "drops" are perfectly normal, nothing wrong with them. Try CyanogenMod7 roms, in these battery drops very fast from 100 to 20 and then holds long time till 0, "battery calibration" is not magic tool - it just lets you to charge the battery to "real" 100%. If used properly of course - it can also make your battery to last less...
A6ekAK said:
Think of what you're talking :d
That "drops" are perfectly normal, nothing wrong with them. Try CyanogenMod7 roms, in these battery drops very fast from 100 to 20 and then holds long time till 0, "battery calibration" is not magic tool - it just lets you to charge the battery to "real" 100%. If used properly of course - it can also make your battery to last less...
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It doesnt seem perfectly normal to me. I've never ever seen a device do that ever...