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Friend has a new Desire Z (bell, unlocked). Using it on AT&T network.
When at a house, and we use WiFI (30Mbps DL, 25Mbps UL), the speeds are VERY inconsistent. With my iPhone 4 using speedtest.net, it shows up as 20/15 each time. (WiFi is a little slower than the modem).
With the Desire Z, we get 15/10 (which is fine/acceptable). Then 3 minutes later we do it, we get 5/2. Without even moving the phone or touching the modem connection (not downloading anything on the computer), the connection just gets slower. Then it might be fast or slow, basically it's a toss-up.
The first time we noticed the issue is because when we are outside, we get HSPA speeds of 2.5/1.0, then randomly decreases to 0.1/0.05. HUGE difference. And VERY inconsistent. He is using a microSIM from iPhone 4, with an adapter, so we figured maybe the SIM card is getting loose at certain points? However, the WiFi is also inconsistent in addition to the HSPA, so it's probably not that.
What should I do? Is this the situation where I have to flash a new radio or something? (Please suggest others if I am wrong).
Thanks!
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Also, his battery is kinda weak. The battery health is apparently clean/healthy. He came from an iPhone 4, where he would have 3G, WiFi, and GPS on at night but not actually using them. Wake up, and 3% battery loss, maybe 5. WITHOUT using them, just having them on.
Now, with the Desire Z, we have the WiFi + 3G on, but NOT the GPS. He is losing 20%-25% in 8 hours without even using the phone.
Information about battery shows a high Cell standby (25%) and Phone idle (25%) percentage. When going into Spare Parts > Partial Wake usage, we didn't find anything really fishy. BUT we had rebooted so perhaps some info may have been lossed. Should he just go to sleep tonight and report the Partial Wake Usage statistics again?
We have a feeling it may be some apps refreshing at night.. But he clears all the apps with Advanced Task Manager except for like Facebook (2 hour interval refresh), GMail, and Google Voice.
I highly doubt a 20% battery decrease overnight is normal.. My mom's Atrix only loses about 5% overnight, with the same parameters I gave before.
I thought it may be a bad battery, BUT the phone idle + cell standby are abnormally high.
Thanks!
Why is this in General as well as Q&A?
Put this in Q&A, didn't get any answers. Went to General, saw that more people posted there, even for Q&A's. Have an actual problem that research didn't help much with, so made a thread. If necessary, I would be glad to remove the thread on Q&A.
By the way, thanks for the answer .
Would you be able to post your software specs? Radio version, rom version, android version? My Bell DZ only loses about 3% per night if I don't plug it in to charge. I, like you, have wifi, gps and hspa enabled with no huge I'll effect.
The stock battery is usually alittle weak. Being a 1350mA, it doesn't have the capacity either, but that is why it is user replaceable. I picked up the mugen 1800mA battery that gives the phone the stamina to last a full day of full use or 2-3 days of light use. I forget how much I spent on it but it was definitely an upgrade.
As for the signal issues, we would need to know what you are running. The latest .30 radio is recommended for AT&T if I remember correctly. Also, the type of rom (stock or custom) might give us abit more insight.
Sent from my HTC Desire Z using XDA App
I lost about 10% overnight today I believe, possibly 15 (don't remember exactly what I left off at).
Not sure on all the stats because I don't know how to check them but
Android Version 2.3.4
Cyanogenmod 7.1.0-RC-Vision (seller did it for me)
What is the radio version? I think that is baseband not kernel? If so its 12.52.60.25U_26.08.04.30_M3
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If anyone knows about the sporadic data, that'd be helpful. It does seem that if I go into airplane mode a few times it fixes itself, but I doubt everyone does that to ensure fast HSPA speeds
Sent from my HTC Desire Z using XDA Premium App
I've never used CyanogenMod Custom ROM's before, so I can't speak from that experience. I can, however, tell you that while running RMK (and team's) Custom ROM's (Virtuous, G-Lite, Unity) and now MIUI, battery life has been excellent, even with the stock battery. The current build of MIUI lasted for about 15hrs on a day of full use, RMK's ROMs would last about 12-15hrs of moderate to full use on the stock battery. Alot of the custom roms have different power management settings and tweaks, if you're comfortable with flashing, I would recommend another ROM and see if that helps with either of your problems.
If you like the Vanilla/AOSP look of android, try RMK's G-Lite ROM. It is very lightweight, fast and stable. I remember having one issue with it, but it was a very small issue and didn't stop me from using it for a few months.
I am currently on MIUI English 1.7.1 and with moderate use I am sitting at 50% charge spent over 2 days. Moderate for me is about 300 texts with about 10 phone calls and a total of about 4hrs of web browsing.
I can link you to those roms if you need, but they're all located in the Dev section. Your radio seems like it's on the right version, so perhaps it's not the issue. Try running another rom for a week and see if that helps to any degree.
I re-calibrated the battery, let it die, charged it up, let it die, charged it up. I followed the instructions to the letter and all that.
It was at 100% when I went to sleep. Woke up 8 hours later, 74%.
Settings > Battery shows nothing high 40% for cell standby and phone idle. Everything else (Facebook, etc.) REALLY low.
Then I went to Spare Parts > Battery Usage, Partial wake usage, everything incredibly low as well..
I will try Watchdog, but could it just be a bad battery? Or maybe should I try a different ROM?
Thanks!
JayXL14 said:
I re-calibrated the battery, let it die, charged it up, let it die, charged it up. I followed the instructions to the letter and all that.
Click to expand...
Click to collapse
NO! This is poor recommendation, and people need to stop perpetuating it. People keep recommending this, but its NOT a good idea to let the battery drain until it dies, just to calibrate the battery meter. While the protection circuit on the battery will USUALLY prevent over discharge, it is not 100% failsafe. There is a slight possibility that over-discharge of the battery will happen, and then the battery is no good, and will need to be replaced. Unless you have a special battery meter with a "boost" function (which most people do not have access to). See the following table on Battery University, where it says for Li ion batteries: Discharge: Prevent full cycles
http://batteryuniversity.com/learn/article/do_and_dont_battery_table
Best practice is to charge to 100%, drain to about 20%, repeat a couple times. No need to go below 20%. The battery meter is not very accurate to begin with, so there is no value added going to 0% versus 20%, but you risk killing the battery.
Plus people keep abusing the terminology. You are just calibrating the battery meter, not "calibrating the battery". When people say this, I think its just a holdover from the old days of NiCad batteries, where you had to condition/discharge the batteries periodically to prevent memory effects (Li ion batteries do not suffer from memory effects, and require no period cycling).
Can't really speak to the Atrix or the iPhone. But the battery drain on the DZ described by the OP is right in line with what I've seen. I also have an unlocked Bell DZ on AT&T, and battery drain of 2-4% (on various ROMs and couple different radios) when the phone is completely idle, screen off is totally normal. Best I've seen on my DZ is with the Virtuous Unity ROM and the .30 Gingerbread radio, where I've seen somewhere around 1-2% drain per hour when idle.
One possibility, is that the different phones are not reporting % battery the same way. As I've mentioned above, the battery voltage meters on phones is not very accurate, maybe in the range of 5-10% accuracy (although, even with this, the drain on the DZ versus the ATrix and iPhone still sounds inconsistent). But what is more important is how many hours of usage you get before needing to charge.
Thanks for the info.. Ill try charging that way.
And I honestly think the battery is just reading it wrong. It honestly feels like it dies faster idle than not, go figure. Yesterday, at like 10% battery, I wanted to kill it off, and played a game for like 10 minutes straight, still 10...
Then I tried leaving the flashlight on for 10 minutes on and it maybe lost 1
How is that battery I recommended from dealextreme though?
Sent from my HTC Desire Z using XDA Premium App
It's interesting to see all the troubles that people are getting on the DZ...
I've had my DZ for about 6months and never seen any of the reported problems.
My 1350mha will last me on a frequent usage near 24hrs and if I'm using it lightly like when i'm busy at work... almost 2days worth.
Mind you I'm running Cyanogen MOD7. No GPS. Wifi is on and I use JuiceDefender.
Cheers mates.
Last night, I charged my phone to a complete charge before going to bed to see what kind of drain I would see overnight. After 9.5 hours, my battery had only lost 2% sitting idle. That is with 3G on, but no Wifi or Bluetooth enabled.
The phone idle accounted for 47%, cell standby 48% and Android system 4%
While it seems remarkable, I'm still not convinced that its not my phone incorrectly reporting the battery level. On a typical day when I pull my phone off the charger, the first 10% is very slow to drain. Today, I have sent a few text messages and played maybe 3 minutes of word feud. That has drained 6% of my battery.
We will see where I'm at later in the day. I suspect that the actual level is lower than the 94% it is reporting. Typically, I get between 12-16 hours of usage, depending on how much I play with my phone.
Well I am at nearly 23 hours on this charge. Have used the phone rather lightly during the day. It sat idle for about 9 of those hours while I slept last night.
Conclusion: Idle drain is very minimal on my device and looks as though the percentage was being reported rather accurately. I'd say if you're having a lot of drain while sitting idle, do some digging and find what it is.
More info:
Facebook: update 1 hour
Gmail Sync: 1 hour
Fancy Widget update: 1 hour
Brilliant Quotes widget: update 1 hour
Light Bluetooth usage (about 15 minutes)
Wifi on all day (not overnight so about 14 hours total)
Screen brightness set at about 50%
Average signal strength: -100dbm
My phone is 1h30m out of the charges and at 78% battery level, out of those 68% is "phone idle". What is exactly "phone idle" and why it eats so much battery where name suggests on it's own that it shall not be using any battery since it's "idle"
artisticcheese said:
My phone is 1h30m out of the charges and at 78% battery level, out of those 68% is "phone idle". What is exactly "phone idle" and why it eats so much battery where name suggests on it's own that it shall not be using any battery since it's "idle"
Click to expand...
Click to collapse
I am having a similar issue. On 2.3.4 HKTW with Faux kernel, battery mod and Battery level fix. Phone Idle is draining the battery.
jiggytom said:
I am having a similar issue. On 2.3.4 HKTW with Faux kernel, battery mod and Battery level fix. Phone Idle is draining the battery.
Click to expand...
Click to collapse
Do you have a feeling this started happening after "battery fix"? I feel like it started happening since I install fix yesterday.
I had the same problem, both before and after the battery fix. I cant get my atrix to last 12 hours with light use before its crying to be charged. Just installed the battery fix and Ninja rom last night; ill give that a try and see how it goes.
Man guys, I'm just rooted, and running the latest stock rom, and I'm amazed at how awesome the battery life is. I can go for almost a day and a half. I do most of my rss feed reading on my phone, and I tend to go for hour long jogs with it strapped to my arm running gps.
Maybe my usage model has something to do with it. When I'm not running, I'm either at home or at work, where I connect to wifi. That might have something to do with my stellar battery performance.
i have the same problem it started yesterday well noticed it yesterday
i went with the new recovery and after a bad install of ninja
installed the new cherryblur I had a problem with the new recovery wipeing user data and had to reinstall after a wipe with fastboot. dont know what the problem is.
artisticcheese said:
My phone is 1h30m out of the charges and at 78% battery level, out of those 68% is "phone idle". What is exactly "phone idle" and why it eats so much battery where name suggests on it's own that it shall not be using any battery since it's "idle"
Click to expand...
Click to collapse
i had exactly the same issue with Kenn´s rom and Faux kernel...
after a week testing with everything i can tell you that the guilty was the Kernel.
Flash again the rom that you have been using but do not install that kernel.
Cheers!
jmgg2k said:
i had exactly the same issue with Kenn´s rom and Faux kernel...
after a week testing with everything i can tell you that the guilty was the Kernel.
Flash again the rom that you have been using but do not install that kernel.
Cheers!
Click to expand...
Click to collapse
sounds like a good place to start. ill give it a go!
edit: this mornig i set my set cpu profile to the lowest setting while screen is off ond just notices phone idle is down to 45%
ill post back if i have more data
The less you are physically using your phone, the higher the percentage of usage Phone Idle will have. Typically, for a normal user Phone Idle will ALWAYS be the highest usage.
Diviance said:
The less you are physically using your phone, the higher the percentage of usage Phone Idle will have. Typically, for a normal user Phone Idle will ALWAYS be the highest usage.
Click to expand...
Click to collapse
this is true. if your not using anything else to drain your battery something will always show up on the list. say you lost 20% of battery in 4 hrs. you have had it sleeping the whole time. well that list looks at what applications have been running so it builds a list on what took out the 20% so if you didnt do anything phone idle would have taken say 78% of the 20% of battery you lost. it doesnt mean its draining your battery more then normal. it means it was the only thing to drain the battery at all. followed by display, android system etc....
International user here with 2.3.4 ORANGEFR. After flashing edgan's kernel my battery issues are pretty much gone. I undervolted as much as I could. At 70% battery right now with 8 hours of moderate use.
Diviance said:
The less you are physically using your phone, the higher the percentage of usage Phone Idle will have. Typically, for a normal user Phone Idle will ALWAYS be the highest usage.
Click to expand...
Click to collapse
That's fine but the problem (see original post) that despite low usage I do have big battery drain and in this case "idle" is in fact appears to be eating 2/3 of it.
I'm in the orange already after little use today and i've only been unplugged for 6hours. I just flashed GB on friday.
Normally I would suggest installing the app Spare Parts to monitor which apps run the heaviest while the phone is supposed to be sleeping...however, on the Gingerbread ROMs, Spare Parts can't show you those stats anymore...very unfortunate.
but spare parts+ can
artisticcheese said:
That's fine but the problem (see original post) that despite low usage I do have big battery drain and in this case "idle" is in fact appears to be eating 2/3 of it.
Click to expand...
Click to collapse
you never post what android version you are using, im assuming HKTW on ATT atrix? i had the same problem with that build, its full of problems. dont bother installing apps to try to figure out what is draining your battery, its the build itself it is known to have battery issues. theres def a problem if the phone is using 22% on just 1.5h of idle. there's no fix for it. install either ken's gingerbread rom or one of the other roms based on ATT 2.3.4. theres no battery issues with those
neotekz said:
you never post what android version you are using, im assuming HKTW on ATT atrix? i had the same problem with that build, its full of problems. dont bother installing apps to try to figure out what is draining your battery, its the build itself it is known to have battery issues. theres def a problem if the phone is using 22% on just 1.5h of idle. there's no fix for it. install either ken's gingerbread rom or one of the other roms based on ATT 2.3.4. theres no battery issues with those
Click to expand...
Click to collapse
Well, no REAL battery issues. The meter still jumps around wildly unless you have the fix installed if you are using the 1% mod. So you can reboot and suddenly have 20-40% more battery than before.
artisticcheese said:
That's fine but the problem (see original post) that despite low usage I do have big battery drain and in this case "idle" is in fact appears to be eating 2/3 of it.
Click to expand...
Click to collapse
Have you done the battery fix for the GB ROMs? Without it, the drain is reported as being more than it really is.
Have you set up a more conservative profile under the battery management (or wherever the hell it is)?? With light usage, change your settings there to be less performance based, since you apparently don't need it.
And as previously stated...SOMETHING will use your battery. That will either be idle, or Angry Birds. If you aren't using apps, the browser, etc...then idle consumes battery. Use your phone more...or adjust your profile settings to be much more conservative (including turning data off after a shorter time period).
Diviance said:
Well, no REAL battery issues. The meter still jumps around wildly unless you have the fix installed if you are using the 1% mod. So you can reboot and suddenly have 20-40% more battery than before.
Click to expand...
Click to collapse
this is a very minor problem that doesnt effect battery life as in it doesnt shorten battery life. it jumps up after reboot but if you use it for a while it will jump back down on its own. there is also a fix that works so its not an issue anymore.
I'm using Kenneth ROM with default kernel. Idle is still top consumer ( more then screen for example). I did not do battery calibration but will do now but I don't think this will fix the issue.
Sent from my Atrix
I am running CM7 on a D2 and i am experiencing pretty short battery life. I went from Liberty 2.0 rom on froyo last week, and upgraded to GB and flashed CM7.
I have barely used it much today for example. Took it off the charger at 6:30am have done nothing more than sent a few texts and browsed a website for about 10 mins. It is 10:30 and i am already at 70%
I did a proper battery stat reset this past weekend also.
(i have also been getting a lot of random force closes)
since i cannot post pics here's relevant info...
Android version - 2.3.5
Kernel Version - 2.6.32.9-gca08d89
Mem Info - 214/475
Mod version - CyanogenMod-7.1.0-RC0-DROID2-KANG
Build Number - GRH78C
Battery info...
Display - 42%
Phone Idle - 18%
Cell Standby - 15%
everything else is under 8%, Android OS and System at 2%
CM7 GB Battery Issues
I am having this problem as well. Ever since I rooted and installed Rev's CM7 GB build a few days ago battery life has been much worse. I tried installing Jake's Mods V13 but if it is helping it is not helping alot. Yesterday, made 2 short phone calls, sent 3-4 texts, browsed web for maybe 10 minutes total, and was on tweetdeck for maybe 15 minutes. By end of the day was down to 30% battery. Pre-root and CMY probably would have been about 60% - 70%. Here are the battery stats when plugged it in at bed time last night:
15h 16m 23s on battery
Cell Standby 55%
Phone Idle 19%
Display 13%
Voice Calls 9%
Android OS 2%
TweetDeck 2%
Has anyone figured out a solution to this? Really liking CM7 but I am afraid to play a game or something on the phone because I'm afraid I will run out of juice!
CM7 does have a shorter battery life than stock and some other ROMs. It's still the best ROM and it will eventually be back to better battery life. I use SetCPU and JuiceDefender.
Should I go into the CPU settings on my phone to find ways to increase my battery life? If so, which setting should I alter?
I have been using the 1Ghz/undervolt option in Jakebitesmod along with Juice Defender and it seems to be helping. Battery will usually last me all day with moderate use.
You might want to try SBFing back and starting from scratch. I was on Liquid 3.0 and has atrocious battery life due to the 'Idle' process and was seeing 10-15% battery life drop each hour when there was absolutely no use.
I switched to CM7 and things were much happier. Maybe 10% loss after 4 hours idle. FB app did drain the battery once but I think I backed out of it while it was loading so it was trying to load GPS or something but outside of that no battery life problems what so ever.
I don't know if it's my imagination, but since the 2.4.6 update, my battery life has dropped a bit. By the time I get into my office from my morning commute, I'm anywhere in the 65-70% battery life after unplugging from a full charge. I haven't done anything new. I always unplug around 8:30 am when I head out, I do some light chatting with gf, browse some sites, check facebook (usually very briefly), and maybe sometimes do a little reading on my device. By the time I get into the office around 9:30 or 10 AM, I'm usually around the 80-85% area with battery.
Lately, doing the same thing, I'm seeing the aforementioned 65-70%.
Is anyone else experiencing decreased battery life since 2.3.6?
I'm on a Tmobile Nexus S, running stock 2.3.6 (no custom ROMs).
2.4.6 ? .... maybe 2.3.6 ... and yes, I also noticed a slight increase in power consuption after the upgrade. The stand-by is still great .. about 0.8 - 1% per hour.
Sorry, yes I meant 2.3.6.
Thanks for replying Ro_explorer. Is your increased power consumption significant? Seeing 65-70% when I'm used to seeing 80-85% as I get into my office, I find, is a large change. To be frank, the battery life of the Nexus S in general isn't so fantastic to begin with... this hit makes it worse.
Anyone else?
I used to get home with about 40-50% after a whole "normal day" (unplugged at 8AM, and getting back home at ~8PM) .. now (with the same average usage) I'm getting home with ~30-40% ... that why I said "slight increase" ...
Not your imagination, I too have noticed this. I hope the next update, will fix this - as I used to get pretty good battery life (even with over 250 apps).
When I recently updated to the 2.3.6, it caused a bug of continuous reboot (every 1-3 minutes), so I had to do a hard reset - now it works fine, but I only have added back about 15 apps - and the battery life sux!
Downgrade OS' it will be ok.
This is so weird. Why is the battery life worse?
onthecouchagain said:
Sorry, yes I meant 2.3.6.
Thanks for replying Ro_explorer. Is your increased power consumption significant? Seeing 65-70% when I'm used to seeing 80-85% as I get into my office, I find, is a large change. To be frank, the battery life of the Nexus S in general isn't so fantastic to begin with... this hit makes it worse.
Anyone else?
Click to expand...
Click to collapse
You want bad battery life? Try an Evo 4g with a Sense rom. I averaged about 6hrs using a 1500mAh battery, in stock form.
The nexus is pretty light on power consumption, if you ask me. I average 15hrs on the stock 2.3.7 rom/kernel combo, with stock battery.
Sent from my Nexus S 4G using XDA App
I'm on 2.3.6 and need to charge every two days. I text a lot and do light gaming. I'm typing this from my phone. Maybe you could drain the battery and wipe battery stats? I'm not even at 50% yet and I charged yesterday.
Sent from my Nexus S using Tapatalk
I also noticed that the battery last less time
I've been waiting to see if anybody else reporting this issue
i noticed a decent increase in battery life going to 2.3.7 and thought that previously the battery life had been fairly poor :\
I am non rooted, and get around 20 hrs on light to moderate use. Again. Stock, non rooted.
How do I recalibrate my battery? I wonder if it could be that...
There are many was to recalibrate. Some involve wiping batt stats, some plugging and unplugging phone several times after charge.
I have always found that using the battery almost all the way down, but not past 5%, and then full recharge conditions it very well.
Oh I've been here to solve the problem
"Why last 2 weeks my Nexus s drain battery so fast ? or I have to calibrate it"
Thank for your notice about update OS to 2.3.6.
I think that's a root cause for me too.
1. Could I rollback to 2.3.4 ,how?
2. Does battery calibration is useful for this case , how?( someone suggest to calibrate when flashing new rom )
Thank you very much..
i want to know who have some methods to do with this stuff
borrowedchief said:
There are many was to recalibrate. Some involve wiping batt stats, some plugging and unplugging phone several times after charge.
I have always found that using the battery almost all the way down, but not past 5%, and then full recharge conditions it very well.
Click to expand...
Click to collapse
Whenever switching roms, kernels, or batteries, i always perform the following :
1. Charge to a true 100% (Battery Monitor Widget will register +0 to +2 mA)
2. Wipe battery stats using recovery (Amon RA has this option for the Evo, not sure about cwm), Battery Monitor Widget, or a dedicated app.
3. Discharge battery to 0% with normal usage. When the phone shuts down, I pull and re-install the battery and power back up (it will shutdown again very quickly).
4. Recharge battery and be on my merry way.
Sent from my Nexus S 4G using XDA App
I found one workaround solution for this issue on
ww.google.com/support/forum/p/Google+Mobile/thread?tid=1684c50cea15282a&hl=en&fid=1684c50cea15282a0004af022e5ed212
Sproogle77 's solution
Problem solved. Using the OS Monitor app, I found that the main culprit was Google Services - the Contacts sync specifically. Even though I had this disabled (only Gmail was being allowed to sync) it was constantly working, apparently trying to fix a location. The message log showed that it was generating continuous debug messages, all about locations - around 10 of these every second.
I have solved the problem by disabling 'Use wireless networks' under the Locations & Security settings.'Use GPS satellites' is still running. This immediately dropped my CPU usage - which had been running around 30 to 40% even when otherwise idle, to around 10%. Google contacts sync is now using 0% of the CPU. The difference in battery life was pretty much immediate and is now back to what it was before - the change in the slope on the battery usage graph is remarkable!
This doesn't really seem like a solution to me, and I don't know whether other aspects of my functionality are being affected, but at least my phone is properly useable again.
I'm testing for 1 day and I think that's working for me.
onthecouchagain said:
This is so weird. Why is the battery life worse?
Click to expand...
Click to collapse
One reason is that the new version of the stock kernel removed a speed stepping, so it'll power to higher levels faster, thus using more battery.
rentaric said:
One reason is that the new version of the stock kernel removed a speed stepping, so it'll power to higher levels faster, thus using more battery.
Click to expand...
Click to collapse
That actually isn't the problem. I'm using netarchy's kernel and still get this problem.
My battery life dropped from 16 hours --> 6 hours. the slope on my battery usage life is horrible the system is also awake almost constantly even when I'm not touching it / getting no messages.
I will try the fix suggested on the google support forum and see if that does the trick. sloppy update.
Hello,
I have received my Kindle 4 days ago. Rooted, backup-ed in the next hour and I installed CM7 Barebones edition, a very nice ROM.
After 2 days of intensive use, I found that the battery life in use is very reasonable, but in sleep mode without wifi, no sync and only the core services of android, i notice a 2% battery loss by hour. In the "battery use" menu in parameters, the process "when phone is idle" take me about 10% of battery. I intend to test with or without airplane mode and the battery consumption is about the same.
So my question for the other users of this rom : are you experiencing the same levels of battery consumption in sleep mode ?
Thank you by advance ...
PinguinKilla said:
Hello,
I have received my Kindle 4 days ago. Rooted, backup-ed in the next hour and I installed CM7 Barebones edition, a very nice ROM.
After 2 days of intensive use, I found that the battery life in use is very reasonable, but in sleep mode without wifi, no sync and only the core services of android, i notice a 2% battery loss by hour. In the "battery use" menu in parameters, the process "when phone is idle" take me about 10% of battery. I intend to test with or without airplane mode and the battery consumption is about the same.
So my question for the other users of this rom : are you experiencing the same levels of battery consumption in sleep mode ?
Thank you by advance ...
Click to expand...
Click to collapse
Honestly haven't tired the Bare Bones ROM but I have the WhistleStop CM7 ROM and the Skimp Killah Super Kang CM7 ROM and both are great. I know Whistlestops version gets great battery life with almost no drain in sleep mode. I can sleep all night and only lose 1% with it. Just trying out the SKSK. I'll let you know.
I personally have not extensively tested the battery life of the rom I built (CM7 barebones). I do know the battery for me has no problem lasting a full day, which is fine for my need's. You could always flash over the stock kernel (which I will attach to this post) and compare the two. The current kernel in use is a intersectRaven build (20120110_1106 I think but am unsure). It is still being developed so battery life will likely just get better.
But anyway. Check the attachments on this post for the stock CM7 kernel built 02-01-2012. Also note, the stock kernel is not overclocked. It's default speed is 1008Mhz, where as Raven's is set to 1.2Ghz.
Ok ... indexa question for the whistletop rom, do you put the kf in airplane mode ? When i did not it seek for a signal and eat some power ....
Sent from my Kindle Fire (CM7).
Takenover83 said:
I personally have not extensively tested the battery life of the rom I built (CM7 barebones). I do know the battery for me has no problem lasting a full day, which is fine for my need's. You could always flash over the stock kernel (which I will attach to this post) and compare the two. The current kernel in use is a intersectRaven build (20120110_1106 I think but am unsure). It is still being developed so battery life will likely just get better.
But anyway. Check the attachments on this post for the stock CM7 kernel built 02-01-2012. Also note, the stock kernel is not overclocked. It's default speed is 1008Mhz, where as Raven's is set to 1.2Ghz.
Click to expand...
Click to collapse
I've notice a similar thing with the battery life. Prior to this ROM I was using whistletop's ROM with no battery loss while the device was sleeping. So as Takenover83 indicated, it's more likely to be an issue with intersectRavens kernal.
No problem, I can live with it for now. I love the responsiveness of this ROM, Thanks Takenover83.
I left my device alone for a little over ~10.5hours. Only thing I turned off was wifi. Note, I have a crap load of app's installed.
After 10 hours, I had 90% battery. So that's roughly 1 percent per hour, which I can live with. This was On Demand 300/1200.
Yeah I noticed a significant drain in battery loss. This morning my kindle was completely dead and when I got it charged I had some serious problems. It seemed wifi stopped working. I was able to connect but none of my google apps couldn't connect.