So I have a Nexus 7 and an S3, the former becoming recently rather redundant as I got the new iPad (was tired of lack of optimised tablet apps). I still, however, love the form factor when reading and this I do relatively frequently, maybe 3-4 times a week.
The form factor is also useful when I just want to pop out for a bit and feel like taking it with me, whereas the static iPad I tend to keep either at home or take to university with me.
The only issue is due to me using the nexus less, i am less aware of how much charge it holds. And the standby battery is terrible compared to the iPad, which I can honestly say would last about a month if I wasn't using it.
Is there anything I can do to my tablet to maybe tone down the CPU when not in use or maybe disable internet connection when not in use, as I'm sure these two things may be affecting the battery when it shouldn't.
I don't need my tablet to constantly be up to date the second I turn it on I wouldn't mind if it took a minute or so to show me new updates / emails e.t.c.
Thanks!
Keep WiFi and sync off. I don't keep WiFi or sync on (my g'nex keeps me up to date) and my standby battery is good. Never left it sitting for a full day but over 12 hours I only lose 2-3%.
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used power toggles to turn sync off, but out of curiosity where is the normal menu option for it?
cheers for that, 5% a day is absolutely fine!
They made this one hard to find. Settings > Data usage > Menu options (3 vertical dots in upper right) > Auto-sync data (put check mark). It's really a pain. I use Notification Toggle to have an option to toggle it from my notifications pull-down shade.
just turn it off if your not using it or set your tablet to sleep mode
If your device is rooted use set CPU and use profiles so you can make you processor only do like 50mhz when the device is on sleep
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AZA5 said:
If your device is rooted use set CPU and use profiles so you can make you processor only do like 50mhz when the device is on sleep
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My phone wouldn't wake back up when I did that... Lowest I got it at was around 300 MHz
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What do you mean your phone? Aren't you talking about nexus 7?
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Using Deep Sleep Battery Saver to extend battery life
https://play.google.com/store/apps/details?id=com.rootuninstaller.batrsaver
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I wouldn't be using any of these battery saving apps as most cause more battery drainage than they save.
BetterBatteryStats is the only app you need, free on XDA but support the developer by buying it on Google Play it really is a great app for the small price,and will identify the main battery hogs without using hardly any itself
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Related
Hello-
Ever since I updated to 4.2 and especially 4.2.1, battery life has not been the same. Today I went from 100% last night to 73% in 22 hours just in standby. I didn't change any settings that I can remember. Can anyone please help with this?
Thanks,
wws12
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I had the same battery issues on 4.2 in standby...even with wifi disabled. I ended up flashing back to 4.1.2 and battery is back to normal. To me 4.1.2 is more stable and much smoother. Hopefully Google will fix these issues in the next update.
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I noticed that a large portion of the battery is being used by something called "Media server" Any idea what that is or how to turn it off?
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I'm also noticing the same sleep mode battery drain on 4.2.1,around 1% per hour..
I need to root my tablet to downgrade?
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Use media scanner root from the play site and disable the media scanner. Then this battery drain should reduce.
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ashwinrajsr said:
Use media scanner root from the play site and disable the media scanner. Then this battery drain should reduce.
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Do I need to be rooted for this?
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wws12 said:
Do I need to be rooted for this?
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Yes. Root access is a must.
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I think in my case most of the battery issues was from the device being new and the software stats still needed more time to be accurate, that has happened to me on my Sony tablet also..
Now I can see some real stats as I use better battery stats app for keeping track of the battery.
I use my tablet as a use when needed device because it's not my notifications device that is always connected, for that I use my smartphone. That said I turn on airplane mode when I'm not using it and sync when needed as well.
Só when my Nexus 7 is in sleep mode it has very few apps and services running other than the system ones.
So the stats I came up with are:
1% in sleep mode with airplane mode on and Google Now and Location History turned on..
And..
0.3% in sleep mode with airplane mode and Google Now plus Location History off..
So for me no Google Now as I don't need that much.. It lasts 3x more in standby without it... And the truth is, in my country Google now for me isn't that useful as it is although I'm sure someday will be..
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It's strange...with stock 4.2.1 no root I haven't any battery drain... 0.7% /hour with wifi on and sync enabled...In the battery stats, even if in a hour i turn on the display on a minute, the display takes at least 40% of battery...
Just finished my latest raft of battery saving tweaks for my rooted s3 and here are the results.
I consider myself a medium user and managed to get 54 hours off my last charge. Interested to see how other people's experiences match up to mine.
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Look at your Awake and Screen on times.
Might as well leave your mobile untouched for 2.5 days.
What matters is screen on time, not how long between charges, if you only use your phone for 5 mins a day you will wait a long time between charges. I can get 4 hours screen time which is decent (That's 4 hours in one day) So in theory if I use my phone for 1 hour a day I should get 4 days usage out of it.
All it shows is you don't use your phone much, show me a screen time of more than 6 hours and I will check out the battery tweak in use (as long as I can still use my phone)
Ok will post my screen on time stats from my next charge, pretty sure it's more than six hours.
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What's the point of having these devices if you'll use them like regular phones. I see no apps in your battery details. Obviously you're unlocking your device only for phone calls and swiping between screens and app drawer because of boredom.
Better to get a nokia 3310 and never care about battery again...
There you go Delsus just got home from a day out onsite plus the commute back & forth - 8 hours screen on time.
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Cool, so what exactly is your "tweak"?
The second image is "screen on time" though
later edit:
one more,but not mine.
when i will have time i will try to see how much "screen on" i can reach (although i can reach 8 hours of text reading, i doubt that i will reach that playing NOVA.)
http://forum.xda-developers.com/showpost.php?p=36325089&postcount=469
there is also another topic where we have shared our tweaks using Stweaks.
http://forum.xda-developers.com/showthread.php?t=2071967
qavro said:
The second image is "screen on time" though
Click to expand...
Click to collapse
then share with us ur tweak
i am currently using Null 15.1 with siyah kernel
i used to let my Wifi on the whole time to test it and with screen on + downloads time to time..
Max time :8hrs
Min time : 7hrs.
A bit of background I use my phone for work & spend alot of time away from a power supplier (either a plug socket or my car charger) & was finding my battery was fried within about 4 hours of constant use.
By researching & implementing battery tweaks (which don't affect the performance of my phone) and I've managed to get it up to 8 hours.
I'd be happy to post my battery tweaks for others to use, what I'm interested in is other user's experiences to benchmark against.
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The problem is a lot of noobs post junk or badly researched / bench marked stuff .or even exact same battery life posts week after week . We have three identical topics in the first three pages of General as it is .
Hence regular users are cynics after all it is a developers forum not some childish fix my phone look at my quadrant forum .
Well researched logical topics don't get attacked .
jje
MrPobble said:
A bit of background I use my phone for work & spend alot of time away from a power supplier (either a plug socket or my car charger) & was finding my battery was fried within about 4 hours of constant use.
By researching & implementing battery tweaks (which don't affect the performance of my phone) and I've managed to get it up to 8 hours.
I'd be happy to post my battery tweaks for others to use, what I'm interested in is other user's experiences to benchmark against.
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Click to collapse
Do you mind sharing your tweaks, would be interesting to see.
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Finally some members with a modicum of common sense. Yes will post a full list of apps & settings when I get home this evening.
FYI although my background is in Linux based sysadmin I've not gone seriously 'under the hood' merely used apps that are properly configured & applied system tweaks via root.
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Can you please post the battery tweaks which made your mobile 8 hours of screen ontime?
so what happened to this? was he using his phone as an ebook?
Shuryou said:
so what happened to this? was he using his phone as an ebook?
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Lol
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Shuryou said:
so what happened to this? was he using his phone as an ebook?
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i can get up to 9 hours screen on time while reading e-books (wattpad) and a few texts using whatsapp though with wifi on and still have 10% juice left with 11-12 hours of battery usage:silly: is that count as having a superb battery life? just curious though
losta said:
i can get up to 9 hours screen on time while reading e-books (wattpad) and a few texts using whatsapp though with wifi on and still have 10% juice left with 11-12 hours of battery usage:silly: is that count as having a superb battery life? just curious though
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Click to collapse
Which ROM you are using? You are using the airplane mode?
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Hello so I bought my N4 on the Dec 3 batch and got it around Feb, the works fine and all but I have 2 main questions
1. The phone gets hot doing simple tasks like browsing the web or watching a youtube video. I am running the CM 10.1 Nightlies and Franco's Kernel r110. Sometimes the phone can get really hot which I then stop using it to prevent any damage. Does this have anything to do with the Custom ROM or kernel because my friend's N4 is stock and unrooted and hes doesn't have any heat issues.
2. The battery on the phone is not what I expected. I hear people who get 4-5 hours on screen time, but I get around 2-2.5. Also I am on a Canadian provider which is Mobilicity if that has anything to do with it. I leave 3G on mostly and just surf the web when the screen is on.
Thanks for any input you guys leave.
If you can take it back to stock and don't root because that is why your friend's N4 is normal besides what more do you want that the N4 doesn't have?
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I like the root features and also cm 10.1 if its the ROM that's making it overheat then I know to change or find a better one
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Hi,
As always "overheating" is very subjective, it depends on how you feel the heat.
CPU / battery temperature?
In any case there is a protection, a thermal throttling. At certain CPU / battery temperatures the CPU frequence is automatically lowered to help reduce the temperature. In extreme temperature the phone shutdown to avoid damages so no worries.
In 3G the phone heated a little more, no problem here that the phone heats up when you re browsing or you're watching a video on Youtube.
You can try to undervolt a little to see if that helps.
As for battery life it depends on too many factors... CPU settings, screen brightness, signal quality, etc...
Search about your questions in this section or in the General section, there are lots of threads about it.
What temperature does your phone actually get? When running stock it would be impossible to see my phone get other 43c and that was only under very heavy gaming but would usually be at 32-36c ive noticed my phone does get hotter when using mobile data instead of wifi. Now running rasbean with franco m1 and temps abit lower gaming has improved greatly but i dont think there is any difference in battery life compared to stock but your 2-2.5 screen time does seem abit low as i get with just web browsing maybe few youtube vids and few minutes of games around 4 hours screen time but i also envy those who are getting 5+ hours
---------- Post added at 11:34 AM ---------- Previous post was at 11:30 AM ----------
Forgot to mention thats 4 hours on wifi on mobile internet i should be able 2 get over 3 hours
The phone gets hot very easily in my opinion idk the exact temp but I have the ringke slim on it and its definitely noticeable from the top of the phone to the bottom. Also does my carrier have anything to do with it because brightness on my phone is pretty low and simple stuff tends to drain my battery.
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Waynesta said:
The phone gets hot very easily in my opinion idk the exact temp but I have the ringke slim on it and its definitely noticeable from the top of the phone to the bottom. Also does my carrier have anything to do with it because brightness on my phone is pretty low and simple stuff tends to drain my battery.
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When i was using a case on my phone it was getting hot from top to bottom but now i don't use case it doesn't get as hot and usually stays cooler at bottom half. I have found most accurate way to check your battery temp is by going on call and dialling *#*#4636#*#* and a hidden menu will come up and tap battery information you will see temp, there was an app that had same info but cant remember name so when you think its hot dial that code and let me know what temp it shows. Also are you using mobile internet or wifi when its getting hot?
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I think it usually gets hot when using 3G so I'm assuming mobilicity isn't that good for this phone? Also I can clearly tell its the top part that is hot when the case is on
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Yep mine also gets noticeably hotter on 3g and yeah it gets hot at the top but after a while will spread to bottom to thats normal. I am currently running rasbean rom with franco milestone 1 and also downloaded pimp my rom from play it has various tweaks and mods so i just flashed battery saving which supposed to help with battery not sure what it does though lol but i managed to get 3 hours 40 mins screen time half of time it was on minimum brightness and other half on 40% was just internet browsing and im sure you will agree that is very good considering i was using 3g the whole time
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Just an update you should try undervolting on franco as i have now done it and it definitely helps with heating and i am pretty sure it has vastly improved my battery life if your interested i will post the values i have used which seems to be perfectly stable so far
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Yes please, do I need any app for this or can I just do it in the settings?
do you have the franco app? As that was what i used to change my setting if yes just go on frequencies/voltages go down to voltages and change from there i have attached screenshot of my setting and make you do not set voltages on boot as if it is unstable your phone is not going to boot up if that is ticked, you will have to change that everytime you reboot until you are sure its stable then u can set on boot
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Do you have a bad signal? Because if so then that will drain your battery a lot more quickly and also possibly make the phone heat up more.
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steviewevie said:
Do you have a bad signal? Because if so then that will drain your battery a lot more quickly and also possibly make the phone heat up more.
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+1
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I plan on using my n7 as my home phone, i will also attach a speaker to it so that it is loud enough to be heard throughout my home.
I have a question to anyone that uses their n7 heavily throughout the day, have u run into any issues by leaving your n7 powered on for more than 6-8 hours? like i said i plan on using it as my home phone, and it will be powered on for a long period of time and, it will mostly be on stand by. screen off with wifi on and talkatone in the background awaiting any important phone calls.
any positive inputs would be appreciated
I leave my n7 on all the time with the Wi-Fi and GPS radios always on and have hardly any issues.
If l realize that I have not rebooted it in several days, I'll reboot it - though I honestly don't remember ever needing to reboot it other than when messing with the recovery, or installing a kernel.
While it's setting there with the screen off with Wi-Fi and GPS on it seems to only use 1 to maybe 2 percent of the battery per hour.
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That sounds fantastic. I'm going to go though with it and use it as a Home phone
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I use my nexus 7 8gb WiFi for a home phone. It's a great tablet for it. Makes for a great time killer when your waiting for a phone call. Lol
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It is a Google service and I have disabled location services and Google Now. Does not seem to make a difference. I have looked everywhere and have come up with nothing. I have the phone set up basically the same apps as my N4 and my Nexus is crushing my G2 in battery life. Any ideas would be great on what is causing this.
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Are u talking about google service that you see when you go into battery usage options? If yes, im in the same boat as you.
What percentage of battery doew the google service use?
I would like to know how to take care if this problem as well
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I am using better battery stats and it is partial wake lock I guess I did not bother looking at the overall usage. I am trying a few more things and will report back later.
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add me to the list of people this is driving nutzo.
Question, when you go to google sync under settings/accounts and sync, does it show that 'sync is not available at this time?'
I wonder if that could be causing it?
I am waiting for my case to make it my daily driver but last night I tinkered and went and set up all my Google apps and changed my Google plus photo to only upload on charger. When I turned it off it was deep sleeping and and that wake lock was no where to be found. If anyone wants to try this and see if it helps.
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Panzerapple said:
I am waiting for my case to make it my daily driver but last night I tinkered and went and set up all my Google apps and changed my Google plus photo to only upload on charger. When I turned it off it was deep sleeping and and that wake lock was no where to be found. If anyone wants to try this and see if it helps.
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Thats how i've had mine set from the beginning. weird. I'll mess around with it and see if it changes things.
Well my phone seems to be deep sleeping once again. My guess is setting up all my Google apps fixed it Still have some work to do get my deep sleep better but it is not awake all the time now.
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