Related
This research is completly based on previous posts here on xda by other members + based on my testing:
1. Get app CpuSpy from the market. Observe with it if your phone goes to "deep sleep" or not.
2. If you see your phone doesn't enter deep sleep, go to Applications, Battery use and close all applications like default Email app (that caused my phone to constantly use ~245Mhz of my CPU when idle), also check your widgets for various weather updates, ...
3. Apply latest franco kernel (with my experience, this kernel also improved my battery life)
4. Make sure you have turned off in Settings, Date & Time, "Automatic".
5. Disable data transfer under Wireless & Networks.
6. Set Brightness level to Automatic as screen drains the battery alot.
7. Apply the custom roms provided here (MIUI, Oxygen) which are based on Gingerbread (2.3), which also has better battery usage than FroYo (2.2), especialy on U8800.
Hope this helps for some people here
Thanks for the information
but I think if I do all of that, it makes no sense to buy a smartphone in first place
magictwins said:
Thanks for the information
but I think if I do all of that, it makes no sense to buy a smartphone in first place
Click to expand...
Click to collapse
no sense? damn you crazy! the guy says nothing about any of crucial smarphones features. What you can't live with automatic brightness? or with franco kernel?
Selecting 2g over 3g aimake huge difference in battery life.
Sent from my u8800 using XDA Premium App
Tommixoft said:
no sense? damn you crazy! the guy says nothing about any of crucial smarphones features. What you can't live with automatic brightness? or with franco kernel?
Click to expand...
Click to collapse
only the data connection otherwise ur right as hell
THE BIGGEST impact on battery life is as you all may know- DISPLAY. You can disable everything, but those things only takes 20-30% of battery everything else is for display. So.. turn ir off D Its very bad that all roms allows you only to minimize brightness to 11% but i want to minimize it even more, but they do not allow me. cause at nights 11% is too bright for me.
I even thinking to compile my own modified franco kernel just because of that DD But with MIUI rom it shows bull**** in battery usage.
Tommixoft said:
no sense? damn you crazy! the guy says nothing about any of crucial smarphones features. What you can't live with automatic brightness? or with franco kernel?
Click to expand...
Click to collapse
if magictwins means points (2) and (5), i have to agree with him..
theres no point in using a smartphone if i do as suggested..
Tommixoft said:
no sense? damn you crazy! the guy says nothing about any of crucial smarphones features. What you can't live with automatic brightness? or with franco kernel?
Click to expand...
Click to collapse
I didn't mean any of them. I mean all of them...
I agree with the guy that said there is no much point using smartphone if you don't use data or application syncs etc. At least thats why I use android phones.
Ps. Tommixoft is just a regular forum troll / flamer. Always writing in in caps and flaming. Don't feed him.
Sent from my Huawei u8800 using XDA App
I just wanted to post few tips for better battery performance. Anyhow, to the trolls in this topic:
Yesterday i discovered a nice app called 2X battery and tried it today.
As usually my battery goes from 100 to 50 by 12hrs, so with this 2xbattery on, its almost 15hrs and batter is still 67%
nice app 10p
NOS-Kipson said:
Yesterday i discovered a nice app called 2X battery and tried it today.
As usually my battery goes from 100 to 50 by 12hrs, so with this 2xbattery on, its almost 15hrs and batter is still 67%
nice app 10p
Click to expand...
Click to collapse
It maybe usefull for people who don't know what they do.. I can't imagen how it can save battery when my brighness is on lowest possition, gps, data, wi-fi, sync, bluetooth is disabled and 2G enabled. So i don't have a clue how app can help
Tommixoft said:
It maybe usefull for people who don't know what they do.. I can't imagen how it can save battery when my brighness is on lowest possition, gps, data, wi-fi, sync, bluetooth is disabled and 2G enabled. So i don't have a clue how app can help
Click to expand...
Click to collapse
exactly, it just helps the "non nerds" out there with zero to little knowledge of their device and OS
JaymzBond said:
exactly, it just helps the "non nerds" out there with zero to little knowledge of their device and OS
Click to expand...
Click to collapse
it just common sense, no need to be nerd. We al know that everything that is running - uses cpu - cpu uses energy so it's battery - that's the whole nerd part
Can you update the franco Kernel on a stock rom? and If I don't like it, if I restore backup from clockworkmod will the old kernel come back?
Thanks
Tcm9669 said:
Can you update the franco Kernel on a stock rom? and If I don't like it, if I restore backup from clockworkmod will the old kernel come back?
Thanks
Click to expand...
Click to collapse
AFAIK no. Franco stated that his kernel only works with 2.3 ROM. The stock one is 2.2.
Hello everyone...
I have 2 issues with my Transformer
the first one is that whenever i leave my Transformer for couple hours it shuts down !! doesn't occur when charging but it does when it's not.. even when the battery is around 80% !! i had this problem with ALL kernels except the stock kernel which i don't wanna use !! also had this problem for around 2 months...
the second one happened today when i left my Transformer "Charged" at 100%.. and after couple of hours i found it shut down but when i powered it on again i found the battery 27% !!
i went to the battery stats and found that battery was decreasing slowly and there was a gap (which means that it turned off) and after the gap it shows the battery low !! it happened within 6 hours !!
Please help me if you can... !! I'm using Revolver ROM 3.9.5 and "Blades Kernel 3" that comes in the Revolver Parts...
UPDATE : The problem occurs with the stock kernel !!
This sounds very familiar to the problem I had with my Galaxy S2 a month ago.
It kept shutting down every few hours, and it was driving me mad. Then one day I uninstalled the app greenpower, and it was fine afterwards. You don't have the greenpower app by any chance? If not, maybe it can be caused by some other app you normally use?
The battery might be hosed. Have you ever let it hit 0 before? A lot of batteries never fully recover after being fully depleted once or twice.
Cernunnoz said:
This sounds very familiar to the problem I had with my Galaxy S2 a month ago.
It kept shutting down every few hours, and it was driving me mad. Then one day I uninstalled the app greenpower, and it was fine afterwards. You don't have the greenpower app by any chance? If not, maybe it can be caused by some other app you normally use?
Click to expand...
Click to collapse
I never heard of this app... Just like i said it doesn't happen with the stock kernel !!
But the reason I'm using other kernels is because i wanna Overclock !!
a.mcdear said:
The battery might be hosed. Have you ever let it hit 0 before? A lot of batteries never fully recover after being fully depleted once or twice.
Click to expand...
Click to collapse
No i never let it hit 0%... but i don't think that the problem is in the battery
However I'll try it and see what happens !
sounds like a silly question but i have seen it alot. Are you charging through a computer(USB) or wall?
It could be related to setCPU and the according profiles. Just recently I saw that my profiles were messed up after updating ROM and kernel. Might be worth a shot.
Reinstall stock kernel Issue #1 fixed.
Issue 2 sounds like charger shut off and left TF on not charging.
You've pretty much explained to yourself why the thing is shutting down.. It works fine on the stock kernel but not one that is letting you overclock.. Sounds to me like you are either overclocking more than it can handle or undervolting to much or both.
I can almost bet that its not shutting down completely and its just going into a state that the screen is off but the OS is hung up, so its not responding to you turning the screen on.. This would explain why the battery seems to be dieing when its sitting idle.
Not sure about it dieing while its plugged in other than maybe a fluke.
I don't wanna use the stock kernel.. it's really slow !!
and i over clock to 1.4 ghz only since i can't overclock more than that because it restarts itself endlessly if i overclocked more than 1.4 ghz !! i undervolted about -25 or -50.. not much !!
Yes i charge it on a wall or anything but NOT on my computer...
How can i change profiles in setcpu ??
xMini said:
No i never let it hit 0%... but i don't think that the problem is in the battery
However I'll try it and see what happens !
Click to expand...
Click to collapse
No no you misunderstood! DONT let the battery hit 0.
First, you need to use more exclamation points !!!!
sounds like you are suffering from deep sleep issues. What rom are you running? also, have you tried running a custom kernel and not overclock it? You have several variables that can be influencing your issues, start isolating what may be causing your problems. the kernel seems the must likely of culprits, I would clear the overclock and install setcpu and run it for a but and see if you can replicate your issue.
Sent from my GT-I9000 using XDA App
Just try the non stock kernel, oc it but dont uv it, not all devices can handle uv, even if it is only a little bit. Even take it back too 1000mhz and try to increase the uv and oc by little bits at a time to see exactly what your transformer can handle. I think its the uv thats causing the problems. Experiment a bit and youll find the sweet spot.
I'm using Revolver ROM and i mentioned that...
I've never undervolted till yestersay.. maybe it caused the second problem
I set the clock speed at 1ghz and i'm waiting to see if anything changes..
Yeah... the problem still occurs even after setting the clock speed at 1ghz and default voltage !! using clemsyn kernel ver 22...
Every device is different. Differences in manufacturing etc. You might have a picky device. Plus these are mobile platforms. No fans, just convection cooling. They are not meant to be tweaked and oc'ed they way we do. The stock kernel is very fast. What is it that you cannot do on the stock kernel that the extreme oc let's you do?
Sent from my DROID X2 using Tapatalk
colonel187 said:
Every device is different. Differences in manufacturing etc. You might have a picky device. Plus these are mobile platforms. No fans, just convection cooling. They are not meant to be tweaked and oc'ed they way we do. The stock kernel is very fast. What is it that you cannot do on the stock kernel that the extreme oc let's you do?
Sent from my DROID X2 using Tapatalk
Click to expand...
Click to collapse
I'm guessing my device is bad and it's Asus' problem ! i tried setting the clock speed at normal 1Ghz but the problem still occurs !! the reason i overclock is that because with the stock kernel i get slower web browsing and slower flash playback and slower overall performance!! however I'm back on the stock kernel to check out if the problem is gone or not...
I doubted my device couple months ago... because I've seen everyone overclock their devices at 1.6 GHz Without any issues !! but when i try to overclock a little bit more than 1.4 GHz it restarts itself endlessly !!
Had the same issue a few months ago. Be prepared to wake up to a dead TF.
I sent it back to ASUS and they replaced main board and battery. Under warranty of course. I suggest you unroot and use a stock rom for now.
Sent from my GT-I9100 using XDA App
ropaisoft said:
Had the same issue a few months ago. Be prepared to wake up to a dead TF.
I sent it back to ASUS and they replaced main board and battery. Under warranty of course. I suggest you unroot and use a stock rom for now.
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
What do you exactly mean by "for now" ??
and how can i even send it to ASUS ??! i don't live in the USA
xMini said:
I'm guessing my device is bad and it's Asus' problem !!!
Click to expand...
Click to collapse
You stated in an earlier post that the problem does not show up in the stock ASUS setup, but only with a custom ROM and Kernel. How does that make it ASUS' problem. If you buy a car that says it runs on 87 octane fuel and you put 100% nitro methane in the tank and it blows up it is not the manufacturers fault.
Apologies if this is covered elsewhere, but I have been struggling to trawl through all 1000 pages on the relevant thread as I can't get the search terms to get the info!
Basically, when I leave the phone overnight charging, in the morning I cannot turn it on unless I press and hold the power button and volume down to reset the device.
Other than this it is great in terms of being able to adjust the colours and the battery life seems better.
I have tried both the nightly and stable versions..
What ROM are you using?
Sent from my Nexus 4 using xda premium
murtezahu said:
What ROM are you using?
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
I am currently using the stock ROM but could change to a custom... (I am learning as I go at the moment...)
Sounds like your phone is having trouble to wake after a deep sleep. I'm guessing it's caused by a (probably: too) low cpu frequency.
Did you use any app to change the cpu frequencies while asleep, or did you undervolt your cpu?
Also, which version of the kernel are you using? I suggest you stick to M1 for more stable results.
And after all, it might be a bug in the kernel. The people in franco's thread are more than willing to help you if you supply as much information as you possibly can. Kernel version, your adjustments to it if any, etc. I haven't seen this problem happen to anyone before in the last days (oh yea, I read every page of that thread...), so don't be afraid to ask for some help. But for now, I suggest you update to M1. If you're already on M1, feel free to ask your question in the thread.
LOL
Sent from my Nexus 4 using xda premium
sounds like a classical case of sod. do you undervolt?
and rolmply
simms22 said:
sounds like a classical case of sod. do you undervolt?
Click to expand...
Click to collapse
No, I do not undervolt. The only changes I made were to gamma settings. Having said that I did change the power setting but changed it back. I have rebooted the phone so I will see if it happens after the next deep sleep.
Thanks for the help so far, much appreciated!
vindikleuk said:
Sounds like your phone is having trouble to wake after a deep sleep. I'm guessing it's caused by a (probably: too) low cpu frequency.
Did you use any app to change the cpu frequencies while asleep, or did you undervolt your cpu?
Also, which version of the kernel are you using? I suggest you stick to M1 for more stable results.
And after all, it might be a bug in the kernel. The people in franco's thread are more than willing to help you if you supply as much information as you possibly can. Kernel version, your adjustments to it if any, etc. I haven't seen this problem happen to anyone before in the last days (oh yea, I read every page of that thread...), so don't be afraid to ask for some help. But for now, I suggest you update to M1. If you're already on M1, feel free to ask your question in the thread.
Click to expand...
Click to collapse
Thanks for the reply.
I am currently using milestone 1.
As far as I am aware I only made changes to the colour as I am still learning the controls as I go. I have restarted the phone to see if it helps.
The only app that I am using that could be to blame is battery guru, so if it persists, I could try disabling that.
goldeneye243 said:
No, I do not undervolt. The only changes I made were to gamma settings. Having said that I did change the power setting but changed it back. I have rebooted the phone so I will see if it happens after the next deep sleep.
Thanks for the help so far, much appreciated!
Click to expand...
Click to collapse
do you use the pgm slide to wake app?
simms22 said:
do you use the pgm slide to wake app?
Click to expand...
Click to collapse
No, I don't - Should I, or is it possibly what is could have caused the problem?
goldeneye243 said:
No, I don't - Should I, or is it possibly what is could have caused the problem?
Click to expand...
Click to collapse
its a possible cause of sod if you had it installed.
goldeneye243 said:
Thanks for the reply.
I am currently using milestone 1.
As far as I am aware I only made changes to the colour as I am still learning the controls as I go. I have restarted the phone to see if it helps.
The only app that I am using that could be to blame is battery guru, so if it persists, I could try disabling that.
Click to expand...
Click to collapse
You're using the exact same set-up I am, and I'm haven't had any of the trouble you talk of. Disabling battery guru might be a good idea. As it's an app from Qualcomm itself, I wouldn't be surprised if it's set to mess around with the stock kernel's settings. If that's the case, then your kernel is obviously not the kernel that Battery Guru was programmed to mess with! Uninstalling it to see what happens next would be a good step :highfive:. From my experience, you wouldn't need any battery management apps when you're on franco's M1 anyway - using common sense to save your battery should suffice.
vindikleuk said:
You're using the exact same set-up I am, and I'm haven't had any of the trouble you talk of. Disabling battery guru might be a good idea. As it's an app from Qualcomm itself, I wouldn't be surprised if it's set to mess around with the stock kernel's settings. If that's the case, then your kernel is obviously not the kernel that Battery Guru was programmed to mess with! Uninstalling it to see what happens next would be a good step :highfive:.
Click to expand...
Click to collapse
I will do that if I have not already got it fixed with the reboot. Battery guru is still in learning mode so possibly isn't messing with the kernel yet but is the next thing to try...
Alrighty, let's hope it'll get figured out.
vindikleuk said:
Alrighty, let's hope it'll get figured out.
Click to expand...
Click to collapse
Well, it turned on OK this morning, so hopefully fixed...
I guess I will only know in a few days time when I have got more confidence...
I had another SOD so I have reset all settings (installed nightly version 110) and started again -
The only changes I have made are to the gamma settings and changing the governer to conservative to see if that gives me a longer battery life.
Will see how it goes....
I had some more SODs with 110/111 so I changed to 121 and the battery life did not seem as good.
Takes a while to work out what is going on when it only happens once a day...
I still get occasional SODs with battery guru disabled so i guess it is either the kernel or possibly the ROM... I will try on the support thread....
Hi.
My nexus 4 was rooted with twrp installed. Everything was ok, then few days back i decided to try custom kernal, downloaded faux overclock kernal. Phone booted up fine, then it started to act wierd.
When I keep phone idle and check after sometime, it dosent come up, I have to hold powerbutton for few seconds and leave, then phone boots up.
It was causing problems, so I have flashed back to google factory image. Pure stock rooted with twrp installed.
I dont understand, but my phone is still acting same. please help.
i am total stock now.
Looks like phone is not coming up when it is deep sleep.
this is called sleep of death or SOD, it happens when the CPU sleeps and won't wake up without a "battery pull" or a hard reboot like what you did...
a workaround for this is to make the minimum frequency of the CPU a little higher.
Sent from my Nexus 4
Thanx mate.. what would be recommended min freq to prevent this..
As i also face the same issue post update to kitkat
Riro Zizo said:
this is called sleep of death or SOD, it happens when the CPU sleeps and won't wake up without a "battery pull" or a hard reboot like what you did...
a workaround for this is to make the minimum frequency of the CPU a little higher.
Sent from my Nexus 4
Click to expand...
Click to collapse
kishorev said:
Thanx mate.. what would be recommended min freq to prevent this..
As i also face the same issue post update to kitkat
Click to expand...
Click to collapse
anything 400MHz+ is good, try not to lower it too much. it'll consume more battery, but at least it won't die sleeping
Sent from my Nexus 4
Ha ha will try that.. thanks again.. will definitely ping u if that doesnt solve it
Riro Zizo said:
anything 400MHz+ is good, try not to lower it too much. it'll consume more battery, but at least it won't die sleeping
Sent from my Nexus 4
Click to expand...
Click to collapse
Hey man
Tried putting it at 484 MHz using trickster Mod.. still have the same problem
The funny thing is it works well for other older android versions.. only for this it dies like this
Let me know if you think there may be any workaround or will switch it back to 4.3
Riro Zizo said:
anything 400MHz+ is good, try not to lower it too much. it'll consume more battery, but at least it won't die sleeping
Sent from my Nexus 4
Click to expand...
Click to collapse
Hey,I'm having poor battery life for my light usage.please help me resolve this.
I have attached a screenshot of the apps consuming the battery.I get a SOT of Max 4 hours.
Cheers
ReapinDevil said:
Hey,I'm having poor battery life for my light usage.please help me resolve this.
I have attached a screenshot of the apps consuming the battery.I get a SOT of Max 4 hours.
Cheers
Click to expand...
Click to collapse
Which custom kernel are you using?
DJBhardwaj said:
Which custom kernel are you using?
Click to expand...
Click to collapse
I'm using Pure Nexus with Kylo
ReapinDevil said:
I'm using Pure Nexus with Kylo
Click to expand...
Click to collapse
Which version of Kylo? Are you overclocking the frequency?
I prefer franco or elementalX with Pure Nexus. They both work out to be a great combo with the ROM.
DJBhardwaj said:
Which version of Kylo? Are you overclocking the frequency?
I prefer franco or elementalX with Pure Nexus. They both work out to be a great combo with the ROM.
Click to expand...
Click to collapse
I'm using Kylo R9M.And I'm using DarkSpice 7.5 governor profile.So I should be using elemental x with pure Nexus?
Which are the ROMs which goes well with Kylo?
ReapinDevil said:
I'm using Kylo R9M.And I'm using DarkSpice 7.5 governor profile.So I should be using elemental x with pure Nexus?
Which are the ROMs which goes well with Kylo?
Click to expand...
Click to collapse
No, you don't need to use Elemental with Pure Nexus, Kylo is fine. There is no right or wrong combination, it comes down to personal preference. You need to use BetterBatteryStats to find out what's causing your battery drain.
ReapinDevil said:
I'm using Kylo R9M.And I'm using DarkSpice 7.5 governor profile.So I should be using elemental x with pure Nexus?
Which are the ROMs which goes well with Kylo?
Click to expand...
Click to collapse
You do not need to change the kernel. Kylo is good too, i was just referring to my own preference.Try switching governor profiles.
Also, make use of BetterBatteryStats app. It is paid, but surely worth buying. Will help you get a much detailed look on what's happening to the battery.
Heisenberg said:
No, you don't need to use Elemental with Pure Nexus, Kylo is fine. There is no right or wrong combination, it comes down to personal preference. You need to use BetterBatteryStats to find out what's causing your battery drain.
Click to expand...
Click to collapse
Which page of BetterBatteryStats should I take a screenshot? Only these two screenshots show some data.Rest the app says "no stats has been collected".And i have been using this app for approximately 2 days now.
ReapinDevil said:
Which page of BetterBatteryStats should I take a screenshot? Only these two screenshots show some data.Rest the app says "no stats has been collected".And i have been using this app for approximately 2 days now.
Click to expand...
Click to collapse
Did you reboot your phone after installing it? You need to do that for it to work properly.
Heisenberg said:
Did you reboot your phone after installing it? You need to do that for it to work properly.
Click to expand...
Click to collapse
Yes I did reboot once.But I did download the app and installed it.Did not buy the app because I do not have access to a credit card as of now.
ReapinDevil said:
Yes I did reboot once.But I did download the app and installed it.Did not buy the app because I do not have access to a credit card as of now.
Click to expand...
Click to collapse
So you're using a pirated copy?
Heisenberg said:
So you're using a pirated copy?
Click to expand...
Click to collapse
Yes.Is there a similar free version of the same app?
ReapinDevil said:
Yes.Is there a similar free version of the same app?
Click to expand...
Click to collapse
He provides a free version to the XDA community here:
http://forum.xda-developers.com/showthread.php?t=1179809
So instead of stealing it you can have it legitimately. I'm going to leave this conversation now though, piracy is a huge no-no here on XDA, and on a personal level I find it quite disgraceful to steal from developers, especially small ones like Sven. Not having access to a credit card isn't an excuse to steal from someone. I wish you luck in fixing your problem.
Heisenberg said:
He provides a free version to the XDA community here:
http://forum.xda-developers.com/showthread.php?t=1179809
So instead of stealing it you can have it legitimately. I'm going to leave this conversation now though, piracy is a huge no-no here on XDA, and on a personal level I find it quite disgraceful to steal from developers, especially small ones like Sven. Not having access to a credit card isn't an excuse to steal from someone. I wish you luck in fixing your problem.
Click to expand...
Click to collapse
I'm sorry for installing the previous app.From now on,I'll try to buy the legitimate version.I have installed the free version and I'll upload the new screenshots after using it for a day or so.
4hrs SOT is not bad, all depends of how and where you're using your phone. When I'm at work (UK's village) I'm getting even less than 4hrs (bad or no signal), but at home, with dimmed display and good signal I manage to get more than 6hrs. As soon as your phone goes to sleep, there's nothing to be worry about.
Wysłane z mojego Nexus 6P przy użyciu Tapatalka
discodestroyer10 said:
4hrs SOT is not bad, all depends of how and where you're using your phone. When I'm at work (UK's village) I'm getting even less than 4hrs (bad or no signal), but at home, with dimmed display and good signal I manage to get more than 6hrs. As soon as your phone goes to sleep, there's nothing to be worry about.
Wysłane z mojego Nexus 6P przy użyciu Tapatalka
Click to expand...
Click to collapse
The thing is I get perfectly fine signal almost always.I dont game as such.And i dont know why,But doze doesn't kick in for me.
ReapinDevil said:
The thing is I get perfectly fine signal almost always.I dont game as such.And i dont know why,But doze doesn't kick in for me.
Click to expand...
Click to collapse
Have you installed other pirated apps? Perhaps you picked up some kind of malware.
Most recent stats http://m.imgur.com/a/GZn0H
ReapinDevil said:
The thing is I get perfectly fine signal almost always.I dont game as such.And i dont know why,But doze doesn't kick in for me.
Click to expand...
Click to collapse
I think it might be one of two things, either an app with a rogue code that's causing your phone to stay awake and eating cpu cycles or something misconfigured in the kernel. You can either start deleting some apps that you may think are the cause of the problem or try flashing the stock kernel to see if that solves the issue. I'm running PureNexus with stock kernel and my phone loses less than 1% battery/h if I don't touch the phone at all.
HueleSnaiL said:
I think it might be one of two things, either an app with a rogue code that's causing your phone to stay awake and eating cpu cycles or something misconfigured in the kernel. You can either start deleting some apps that you may think are the cause of the problem or try flashing the stock kernel to see if that solves the issue. I'm running PureNexus with stock kernel and my phone loses less than 1% battery/h if I don't touch the phone at all.
Click to expand...
Click to collapse
JoshuaMh said:
Have you installed other pirated apps? Perhaps you picked up some kind of malware.
Most recent stats http://m.imgur.com/a/GZn0H
Click to expand...
Click to collapse
Well firstly my bad as I realised doze works only when the WiFi is off.And it seemed to work.
Here are today's stats.The thing is I feel I can get much better stand by and screen on time.