T420s battery life tips
Hi all T420s user,
I am wonderng if changing to SSD helps for the overall battery life? Currently, my T420s can last 3 hour with the main battery. Any tip to extend the battery life?
Thanks!
Check your browser. If you're using Chrome or a recent version of Firefox, the system will consume extra power. Use IE9 while on battery power if possible.
Put clockres.exe into C:\Windows.
https://technet.microsoft.com/en-us/sysinternals/bb897568
Be on your usual battery workload, and run a command prompt and type ClockRes.
If you see this:
Maximum timer interval: 15.600 ms
Minimum timer interval: 0.500 ms
Current timer interval: 1.000 ms
It means something is lowering the timer interval and consuming extra power. Media players do this out of necessity. Other programs may unnecessarily force this condition.
If you see this:
Maximum timer interval: 15.600 ms
Minimum timer interval: 0.500 ms
Current timer interval: 15.600 ms
You're good in that regard.
Standard CPU usage reduction and disk write reduction applies.
W520: i7-2720QM, Q2000M at 1080/688/1376, 21GB RAM, 500GB + 750GB HDD, FHD screen
X61T: L7500, 3GB RAM, 500GB HDD, XGA screen, Ultrabase
Y3P: 5Y70, 8GB RAM, 256GB SSD, QHD+ screen
Similar Messages
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guys & gals,
reports of substandard battery life are a common theme on these forums. I need to know if my white box replacement iphone 3g (yes, already - and I'm only 2 weeks into the service!) needs add'l servicing.
right now, i'm only getting 4hr 31 min usage, 1day 6hr standby on a full charge. i set the brightness to ~25%, sound to ~40%, push once an hour, 3g and wifi off, handful of txt, handful of brief ( <20 minute) phone calls.
what to do?Regarding Push, Push is either on or off for email, contacts, calendars, and bookmarks.
If you have automatic check for new messages set to every hour, you have Fetch access enabled for your email account or accounts.
I assume you have checked this link?
http://www.apple.com/batteries/iphone.html
Copied from the footnotes at the bottom of the page.
+Battery life depends on the cellular network, location, signal strength, feature configuration, usage, and many other factors. Battery tests are conducted using specific iPhone units; actual results may vary.+
Less than 20 minutes total of phone calls, or a number of phone calls less than 20 minutes each?
And no web browsing during this time? -
T420 vs T420s Battery Life/ Specs
Appreciate any input provided on the differences in specs and battery life between a 6 cell battery on both systems.
Was told the 420s 6 cell would last 6 to 10 hours, and on the initial 100% charge it read 3:50 in time, and after about 15 minutes it read about 4:15. Not sure why this is, but I'd like to do an apples to apples comparison of the two machines given indentical configurations.
Thanks.hey ssbc,
i recommend using this psref : http://www.lenovo.com/psref/pdf/index.pdf
to compare the difference in specs.
for the battery consumption, do note that the consumption is based on usage, brightness of screens and other factors.
thus if you would like to do a comparison, both units should be using the same power manager versions and both be at the same settings
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Iphone 4Gs battery life: 2nd phone has same problem
I bought a 4gs last June (to replace a 4Gs that I lost) and the new phone's battery died after roughly 3 hours. Through my mobile provider I had it replaced, but also the new phone (so the second) has the same problem. The battery drains out within a few hours.
I have bluetooth turned off, most locations services turned off, hotspot turned off, for most apps I have turned off push notifications, i have the automatich time zone turned off, etc. But even in the night, when not using it at all, it uses 20 to 40%!
Any suggestions?Unfortunately, we are still not up to the technology of Star Trek. Batteries and mobile communications have come a long way in just a few years. Every person has the choice between using all the bells & whistles on their devices, or saving the batterry life for being able to use their phones in necessary instances.
Here are some other suggestions:
http://ipod.about.com/od/iphone3g/tp/iphone-battery-life.htm
http://www.pcmag.com/article2/0,2817,2395808,00.asp
http://www.imore.com/how-save-battery-life-your-iphone-and-ipad-tweaking-notific ation-center-settings
http://osxdaily.com/2013/05/20/extend-iphone-battery-life-tips-that-work/ -
Tips to Extend BlackBerry Battery Life
Just scanning this board, I noticed a few inquiries about BlackBerry battery life. Namely, a thread on Pearl battery life and Curve power issues.
So I thought I'd post a link to five tips to extend your BlackBerry battery life.
There are some basics like shutting off your device at night or when you know you won't need it, and some more advanced suggestions like optimizing all your phone and message notifications and your third-party application alerts.
Check it out.
AZA
Device: BlackBerry Bold 9000
Carrier: AT&THey, hope everyone can read this,... For some reason I seem to be unable to post a normal response.
One thing that is apparent with the battery of the 9700 is that the battery actually gets extremely warm on occasions when charging. Originally I thought that it was just when I charged via USB cable but I have since discovered that it is random (could be either wall charging or USB charging). When the battery gets too hot it doesn't retain the same sort of battery as otherwise (i.e. it lasts anywhere less than 7 hours before needing a charge). Other times it seems to last 3-4 days using multiple applications.
Additionally, I was all old fashioned when I got my 9700 (beginning of 2010) and so I decided to charge my battery to full. This hasn't made any difference to me... Occasionally I have good battery life and something I have really really really really really bad battery life (the one time I charged my battery full before I went to sleep, I was woken up with my phone turning off due to lack of battery and nothing was running in the background... This was due to the heat generated from the charging). Nothing to do with the initial charge... That was, as someone said, a 1999 retarded and stupid phenomenon. We have subsequently had advances in technology (yes, believe it or not but a lot changes in 11 years) and as such battery 'memory' no longer exists in the same sense as it did before.
Bottom line, if you didn't discharge your battery completely and then completely recharge it again it won't make a difference. It would have many many many many years ago and some people will still say it is the case. Listen to them if you would like to be sure but the only difference is the time it will take before you can use your device. -
Another very good set of tips to extend your battery life
ALL,
From any screen press and HOLD the Home Button until the Task Manager appears. Then touch the words Task Manager. At the top of the next screen you will now see 4 choices. Lightly slide your finger from right to left and drag the entire 4 choices to the left and you will see Help...touch it.
Wa-La, there it is, Tips to Extend Battery Life.
Hope you like it and that it helps you. I particularly like tips 1 and 4, how about you.
JerryFJerryF,
You need to write a book, "How to tweek your Droid: What the techies don't know" -
Does anyone have any tips on how to maximize battery life of MacBooks ?
I have just bought the new Macbook 15'' after my older macbook (2009 version) had gone through some issues with its battery. The battery life of my old mac became very short, maybe due to overcharging etc. Therefore I want to make sure I dont make any mistakes this time around and make good use of my battery so that it doesnt get damaged too fast. Does anyone have any tips on how to do this? Or perhaps any MUST NOTs (things that would be harmful to the battery), eg. overcharging?
Welcome to Apple Support Communities
Macs do not have overcharging. The battery is stopped being charged when it is full, so do not worry about that.
The most basic tip is to make regular battery cycles and do not disconnect the MacBook Pro from the charger until the battery is fully charged. Then, if you want, you can use your MacBook plugged in all the time, but remember to make a cycle at least once a month to keep the battery life. Also, do not let your MacBook turn off because its battery ran out of energy.
See > http://www.apple.com/batteries/notebooks.html -
I will be in an area without service for a week. I want to use my iPhone as my camera. Any tips on maximizing battery life?
Leave Airplane Mode enabled.
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Any tips on how to improve battery life on new macbook pro?
Any tips on how to improve battery life on new macbook pro?
It all depends on how much you plan to run on battery power. If you don't use it often, set yourself a reminder to let it run unplugged about every couple of weeks to aboout a 40% charge and then plug it up and let it charge back to 100%. If you'r'e a frequent battery user (like me) don't let your MBP discharge to the point where you're running on reserve power - down to about 30 minutes remaining and then charge it back in.
I have over 130 cycles on my computer and I've just had it since March. Even though my battery health was 102.2% when I got my MBP, it's still at 98.8% health and I'm still getting 7+ hours out of my battery. To get the longest use when under battery, keep your activities to low-CPU intensive apps (browser, email client, word processor, etc.) - Internet surfing alone, and not watching a lot of online videos, will give you mor ebang for the buck. You can also check your battery health in 'real time' by using "Battery Health" - free from the App Store and you can make sure that you're running on integrated graphics, which uses less power, by downloading Cody Krieger's exceptional gfxCardStatus.
Keep your screen brightness down to about four ticks and your keyboard backlighting to one tick - should work fine.
Good battery health to you,
Clinton -
T420s hard drive noise / speed /battery life trade off and Screen Roll Cage Info
I know this is a brand new laptop but has anyone over at lenovo spent enough time with both the 7200 rpm and the 5400 rpm version of the 320GB hard drive in this laptop? I am trying to decide between ordering one and would like to get the 7200 rpm but I really dislike hard drive spinning noises in quiet environments. I am currently using the t400 with the 5400 RPM 320Gb drive (which I realize may be different from the drives in the new t420s) and do not find the noise objectionable but would like to get the 7200 in the t420s if there is no noise penalty and very little battery life penalty. Also, does the T420s have a "screen" roll cage like my current T400. I had heard that the T410 did away with the screen roll cages....
Thank You for any assistance.
Solved!
Go to Solution.The T420s's rollcage is made of a hybrid carbon fibre reinforced plastic. It's not metal since that interferes with the wireless signal.
It's apparently a bit better than the one the T510 has right now (which is the same carbon-reinforced plastic)- and the T410, with a "weaker" roll cage, should pass a 1.6 metre drop anyways.
I can vouch for that plastic's use since you can step on another laptop who's lid (I'm pretty sure it's made from this) is made from that (an old 600E) and it will survive.
Also, the noise isn't all that different for 5400 RPM vs 7200 RPM. The fan will be louder if you are using it.
And if you really hate hard drive sound and want a bigger boost than just an RPM bump, consider an SSD. That'll blow any hard drive out of the water in terms of speed, but will do the same to your wallet if you need anything larger than 40-60 GB. And, if you choose to do this, be aware that the T420s only takes SSD's that are 7mm high- so you'll probably need to get an X25-M or Intel 320 to accommodate that. -
Has anyone else found this too
I had major issues with the iPhone 4s battery, however it’s resolved.
The tech who set the phone up at the Apple store did so with little training.
if you have a mobile me account. First go and move all your data to the cloud by going on your computer and logging in at me.com/move. The cloud has replaced mobile me, so there is no need for those two accounts
Also make sure that for any of your email accounts you set them up to fetch, not push. My tech person set them all to have the email servers push data to the phone. The new iphone4s antenna is extremely strong so it will continually try to access stuff that is pushed–***** a lot of battery life doing this. It makes it worse if you have exchange 2010 accounts. Something about changes made to exchange really suck battery life from devices that access such accounts.
turning of locator and the push notifications from facebook--they have a lot! -
What follows is a grouping of some of the most fruitful procedures - from what I've seen in the biggest battery life issue thread - and some background information and discussion for solving or improving the battery life with the iPhone 4S and may be applicable also to devices on which iOS 5.0/5.0.1 has been applied. Credit goes to the respective users who contributed this information to the forum and they should be commended for doing so. This is not a final listing. The goal here is to provide a first stop sort of knowledge base document for newcomers instead of having them perusing the never ending threads where the wheel is reinvented on every page...
Please don't post your questions, usage screenshots, or claims that it worked or not for you or anything here except PROCEDURES/DEBUG STEPS/SOLUTIONS or improvements to the procedures already listed here. Try to use point form and to be as concise and clear as possible. Hope all this helps.
Thank you and good luck!
General info and specs
First, take a look Apple's battery tips, info and specs(obligatory reading for all Iphone 4S users - read it once and for all):
http://www.apple.com/batteries/iphone.html
http://www.apple.com/batteries/
... you didn't read it? loll Always remember this i.e. the definition of "usage":
Usage: Amount of time iPhone has been awake and in use since the last full charge. The phone is awake when you’re on a call, using email, listening to music, browsing the web, or sending and receiving text messages, or during certain background tasks such as auto-checking email.
I'm still not convinced you read the links so here's what Apple has to say in terms of fine tuning your battery life:
Optimize your settings
Depending on how they are configured, a few features may decrease your iPhone battery life. For example, the frequency with which you retrieve email and the number of email accounts you auto-check can both affect battery life. The tips below apply to an iPhone running iOS 5.0 or later and may help extend your battery life.
Minimize use of location services: Applications that actively use location services such as Maps may reduce battery life. To disable location services, go to Settings > General > Location Services or use location services only when needed.
Turn off push notifications: Some applications from the App Store use the Apple Push Notification service to alert you of new data. Applications that extensively rely on push notifications (such as instant messaging applications) may impact battery life. To disable push notifications, go to Settings > Notifications and set Notifications to Off. Note that this does not prevent new data from being received when the application is opened. Also, the Notifications setting will not be visible if you do not have any applications installed that support push notifications.
Fetch new data less frequently: Applications such as Mail can be set to fetch data wirelessly at specific intervals. The more frequently email or other data is fetched, the quicker your battery may drain. To fetch new data manually, from the Home screen choose Settings > Mail, Contacts, Calendars > Fetch New Data and tap Manually. To increase the fetch interval, go to Settings > Mail, Contacts, Calendars > Fetch New Data and tap Hourly. Note that this is a global setting and applies to all applications that do not support push services.
Turn off push mail: If you have a push mail account such as Yahoo! or Microsoft Exchange, turn off push when you don’t need it. Go to Settings > Mail, Contacts, Calendars > Fetch New Data and set Push to Off. Messages sent to your push email accounts will now be received on your phone based on the global Fetch setting rather than as they arrive.
Auto-check fewer email accounts: You can save power by checking fewer email accounts. This can be accomplished by turning off an email account or by deleting it. To turn off an account, go to Settings > Mail, Contacts, Calendars, choose an email account, and set Account to Off. To remove an account, go to Settings > Mail, Contacts, Calendars, choose an email account, and tap Delete Account.
Turn off Wi-Fi: If you rarely use Wi-Fi, you can turn it off to save power. Go to Settings > Wi-Fi and set Wi-Fi to Off. Note that if you frequently use your iPhone to browse the web, battery life may be improved by using Wi-Fi instead of cellular data networks.
Turn off Bluetooth: If you rarely use a Bluetooth headset or car kit, you can turn off Bluetooth to save power. Go to Settings > General > Bluetooth and set Bluetooth to Off.
Use Airplane Mode in low- or no-coverage areas: Because your iPhone always tries to maintain a connection with the cellular network, it may use more power in low- or no-coverage areas. Turning on Airplane Mode can increase battery life in these situations; however, you will be unable to make or receive calls. To turn on Airplane Mode, go to Settings and set Airplane Mode to On.
Adjust brightness: Dimming the screen is another way to extend battery life. Go to Settings > Brightness and drag the slider to the left to lower the default screen brightness. In addition, turning on Auto-Brightness allows the screen to adjust its brightness based on current lighting conditions. Go to Settings > Brightness and set Auto-Brightness to On.
Turn off EQ: Applying an equalizer setting to song playback on your iPhone can decrease battery life. To turn EQ off, go to Settings > iPod > EQ and tap Off. Note that if you’ve added EQ to songs directly in iTunes, you’ll need to set EQ on iPhone to Flat in order to have the same effect as Off because iPhone keeps your iTunes settings intact. Go to Settings > iPod > EQ and tap Flat.
Usage specs for the 4S - http://www.apple.com/iphone/specs.html:
Talk time: Up to 8 hours (12.5% per hour drain) on 3G, up to 14 hours (7.1% per hour drain) on 2G (GSM)
Standby time: Up to 200 hours (0.5% per hour drain)
Internet use: Up to 6 hours on 3G (16.6% per hour drain), up to 9 hours (11.1% per hour drain) on Wi-Fi
Video playback: Up to 10 hours (10% per hour drain)
Audio playback: Up to 40 hours (2.5% per hour drain)
So a scenario of normal usage could be for example: 4 heavy hours of 3G internet browsing (66.4%), with one hour of call on 3G (12.5%) and 22 hours of standby (11%) = 100%
A battery life issue is a problem where the drain is really out of spec either during usage or standby or both. For example, multi-% per minute drain during usage or a 10% drain per hour during standby is problematic. Browsing the internet on 3G during one hour and losing 16-17% is not.
Apple's test methodology for claiming the specs:
http://www.apple.com/iphone/battery.html
Procedures
davidch tips (reset+full discharge recharge):
Go through these steps to address the battery after updating to iOS 5.0.1:
1. Reset all settings (settings app-> general-> reset)
2. Go through initial setup steps (lang, wifi, siri, enable location, etc) and choose setup as new phone (don't worry your apps, data, contacts, mail will still be there). Do NOT restore from iCloud or iTunes (It can copy back corrupt settings)
3. Turn off system location services timezone and iAd
4. Fully discharge battery (tilll it shuts off with the spinning wheel)
5. Fully recharge battery (overnight if possible)
In my experience this improves the Standby battery drain issue significantly in most cases. It reduces drain from 2-4% or more per hr to 0.5% or less. It has worked for many, many users now. If it does not work after a few try's you may have a real battery or hardware issue and should contact Apple. Good Luck!
ram130's variant of davidch i.e. additional steps:
Now using davidch original steps and attaching the tweaks I made to get me more usage. As shown on page 29.
Go through these steps to address the battery after updating to iOS 5.0.1:
1. Reset all settings (settings app-> general-> reset)
2. Go through initial setup steps (lang, wifi, siri, enable location, etc) and choose setup as new phone (don't worry your apps, data, contacts, mail will still be there). Do NOT restore from iCloud or iTunes (It can copy back corrupt settings)
3. Turn off system location services timezone and iAd
4. Fully discharge battery (till it shuts off with the spinning wheel)
5. Fully recharge battery (overnight if possible)
6. Disable Siri 'Raise To Speak' and REBOOT *( if possible use another camera to verify the infrared is off after the reboot).
7. Set emails, icloud and calendars to fetch. ** test. Mines on hourly.
8. If your in a no signal and your phone is saying "Searching..." even after 10mins, reboot while in that area and after 1-2min it should say "No Service". This mainly applies to Verizon customers and improve battery life in these areas.
9. *optional* Goto Settings > General > Network and you will see "Hotspot.." loading something, wait a few seconds and it should say "setup personal hotspot" then exit out.
* I notice a great improvement after disabling this and rebooting. This increased my "screen on" usage or at least helped it. Make the change.
** I have not tested push yet to narrow down the drain but I had this change on my phone. I believe exchange push is responsible for some stand by drain. As for icloud, haven't notice much of a difference. Just try it for a day. My email still came in fast most times. Again still testing, will report back on these..
buxbuster tips(wifi sync, iCloud):
These are my own tested workarounds that worked for my iPhone 4S and seemed to have worked for others as well :
Workaround number 1. Deselect wifi-sync in iTunes and press sync.
If that doesn't work try :
Workaround number 2 : Remove iCloud, reset network settings. ( I guess this won't work for you since you don't have it enabled ).
If both workarounds fail, you can always try to completely wipe your phone. That also solved some of the cases out there.
rolandomerida tips - i.e. buxbuster and additional steps:
Finally, I solved the syncing error loop. My contacts are syncing flawessly again between my devices and iCloud, and yes, the battery stopped draining, which is the main topic here.
I followed instructions from buxbuster (check his workaround a few pages up!) and an additional BIG step to restore contacts and syncing, as seen in a MacRumors forum.
This is what I did:
1. Make a backup of your Address Book, using the vCard option (or both, it doesn't hurt). Save it for later.
2. In your iPhone, delete iCloud account. When it asks, accept both: delete AND delete from my iPhone.
3. Reset network settings. The iPhone will restart, then will ask you to unlock the SIM card.
4.Turn Wi-Fi on.
5. Add the iCloud account again.
That's for Buxbuster's workaround. For some, it might work just like that. My iPhone repopulated from iCloud after step 5, but I still had that "server error" on iCloud. I had to do some extra steps, since my Mac was not syncing to iCloud and couldn't edit anything on my Mac or iCloud. Syncing back had to be fixed, too. If not, the syncing loop would continue from my iPhone, and the battery would drain awfully again.
1. In System Preferences -> iCloud, I turned Contacts off. I chose "keep on My Mac" those contacts, but I got an empty Address Book after a while. And a few minutes later, iCloud contacts were empty and my iPhone also. It is scary at first! Now, before importing that vCard backup...
2. Turn Wi-Fi off. This is important, since your contact-empty iCloud will attempt to wipe your Address Book from your Mac in seconds after importing.
3. Import your vCard backup to Address Book. Just drag it to your blank Address Book window; it asks if you want to import "x" number of cards. Of course, say yes.
4. Turn Wi-Fi on, and then iCloud contacts on again (System Preferences -> iCloud). It will offer to merge your newly populated Address Book with iCloud (which is empty at this point). It should upload every single contact to iCloud, and then to your iDevices. If not, a fifth step would be to import the vCard file to iCloud, but it shouldn't be necessary.
So, with iCloud syncing working correctly, there is no battery draining! Again, that was my particular issue.
I can't tell if this is the single answer to the widely spread battery draining problem, but it sure can be fixed with these workarounds, and yes, Apple should address the problem with a future update, for we affected customers don't need workarounds in the first place
This is the MacRumors discussion:
http://forums.macrumors.com/showthread.php?t=1256807
And dont' forget to check buxbuster's fix, video, and THANK him!
Miless tips (full 800mb release of 5.0.1 and sanitizing a restore):
As for 4S battery life. Try doing this,
1. Settings>Location Service ... disable all location services you do not need. In particularly Facebook because it drains the battery a lot.
Scroll down to the bottom at Settings>Location services>System Services ... Disable Setting Time zone, location based iAds, Diagnostic & Usage.
2. Settings>Notification>Calendar ... turn off the Notification Centre.
3. Settings>General>Reset ... do Reset All Settings. Doing this will not wipe out your iPhone. It will just Reset the network settings, location warning, keyboard dictionary, etc... but it will clear up some corrupted data there. Generally this will help.
Try these 3 steps first... if it still drains a lot, try the following,
4. Drain your battery down to 1%. Then charge it up using USB from PC ... not the charger. The charger output 1.0 A ( x 5V from USB ... you get 5W power). From PC, output is only 0.5A x 5V = 2.5W power. Charging is slower but trickle charge 4S helps the battery retain its charge better. I think it takes about 3-3.5 hours to charge full from USB/PC compared to slightly below 2 hours using iPhone charger.
If after doing the above still could not solve your battery issues (mine with iOS 5.0 was ok up to step 4, but not iOS 5.0.1).... plug you iPhone to a charger (any charger), from iPhone, access your iCloud ... set it up if you havent. Back up your iPhone data to iCloud. if you do not have enough storage (only 5GB is free), go to details and select the apps you need its data backup, choose only those you really need and leave those unnecessary ones out. Back up your camera roll to your PC/Mac manually as it could be too big to backup to iCloud.... once you have it setup, make sure you are on Wifi ... tap backup to iCloud from your iPhone. It will take a while if the file is huge.
Once backup to iCloud is completed, plug your iPhone to PC/Mac and launch iTunes 10.5.1 (make sure you have 10.5.1)
Click Restore. It will automatically initiate a download of iOS 5.0.1 ipsw for iPhone 4S. Wait for the whole process to finish, ie. download, restore software/firmware.
Once its done, do not set up your iPhone from iTunes. Set it up on your iPhone. Go through the selection. When prompted, select restore from iCloud (from your iphone backup earlier). Keep your iphone plugged into iTunes while restoring backup from iCloud. Because while restoring from iClouds, some data will be synced from iTunes if you plug in, e.g. music, video, etc... unless you bought these content from iTunes store. Apps will be downloaded from App Store from the cloud.
Once it's all done restored. Turn off your iPhone,.. and turn it on again.
Now, hopefully your battery wont be draining so fast anymore. Usually it wont after this. But you need to charge your battery at least 4-5 cycles to stabilize the charge on the battery. I dont know why... but battery life seems to get better and better for me after a few charge cycles after all the above work.
Good luck. Let us know if it works for you.
W. Raider tips (Sirii):
Bottom line for me of things that helped battery life are:
1. Turing off Siri and Rebooting the phone by holding the Home button and Top button down, ignoring the slider, until the phone shut down. (turn off Siri, reboot, and check top front of iPhone 4S against a lesser camera like the front-facing camera on an iPad2 - making sure the IR sensor is off)
2. Fully draining the battery, meaning using the phone until it shuts itself off from a drained battery and then recharging it to 100% about 4, maybe 5 times. I charged it both with a Mac and a wall charger.
Hope this is helpful!
Comments
jmm514 remarks (Twitter):
I may have found something. I had Twitter disabled in my notifications, but got a tweet today that popped up on my home screen. Didn't know I had this enabled. At the bottom of the Twitter notification settings is the home scrren toggle. Since disabling this, battery life seems better. Considering there is no setting for frequency of checking for tweets, it appears the phone is continually connecting to wifi to check for new tweets.
tmksnyder comments (notifications, corrupt data in iCloud):
For me, I found my iphone on wifi mysteriously connecting to my mac. I eventually narrowed it down to the Apple Move Trailers app which keeps a file in iCloud. The phone was trying to sync the file with the mac in the background even when the Movie Trailers app was closed (hitting the red x). Based on my macosx logs the iCloud process that was trying to sync was working directly between the phone and the mac without using itunes by connecting to an https address hosted on the phone. It was connecting every 3 minutes and failing (while phone was awake or awake during during a notification). I also found that iCloud control panel on OSX would error if I tried to delete the file. I fixed it by removing the App and doing a hard reset which stopped the sync. I probably could have turned off iCloud document sync in the phone but didn't think of that. My battery life has greatly improved while at home on wifi. I am now at 28 hrs standby, 2 hrs 20 minutes of usage, and 68% battery. It was ok before where I could get 20-30 hrs standby and 6 -8 hrs usage. My usage today was phone calls, 3g surfing, and music via bluetooth in the car.
I also found even with Itunes iMatch, if I mass updated tages, art work etc, it would hit the phone on wifi even in standby. I was amazed. Granted if I am not doing updates, Match won't hot the phone so this was a once in awhile event. I could drop my percentage by 5-10% in a matter of minutes when doing updates. I think a lot of our problems are background processes, associated with iCloud, notification, and apps. More features means more battery. I think the key thing is to keep track of what has recently been added or changed if battery life gets worse all of a sudden. It may be an app that was recently installed and if possible you may want to completely remove it and not just quit it.
With twitter, i think it uses push notifications so it doesn't need to be running and actively poll on the phone. For instance , if i quit the mail app, i still will get mail notifications and can swipe the message and load mail. Apple Push Notifications servics maintain the connection to the phone and there are likely pings or connection checks that occur for the service on an os level not an app level. This minimizes the load so there arent a bunch of apps all runing and constantly checking. The notification service , if it is contacted from twitter or another service with data, will check the settings you have registered to the with the apple push service and send the notification to your phone. No matter what, there is a drain with notifications. M hunch is once one application is configured to receive notifications, connection checking occurs betwen the push service and the phone so it knows where it is on the network. If it is implemented correctly, these checks arent frequent if you are still and more frequent as you move. The other drain is for when the noification hits and is processsed. If i get 9 emails over night, my screen just popped up for 20 seconds or so to process each message using battery. I would even think that just go from low power to turning n the screen uses more juice than if the device was already on and i get the message. On nights I get no notifications, I see a 3 or 4 percent drop. On nights with a number of notifications, i have seen up to a 10 percent drop. Besides notifications, wifi sync and icloud will poll on the local network and use up battery if the host computer is on and running itunes or trying to sync a data file that is corrupt (which i had with the apple movie trailers app causing my phone to drain). For me turning off wifi sync and remving a corrupt file in icloud solved my battery issues and I get over 24 hrs of standby with 6 to 9 hrs of use and this is with all the normal location services and push serivices turned on.
See http://developer.apple.com/library/mac/ipad/#documentation/NetworkingInternet/Co nceptual/RemoteNotificationsPG/ApplePushService/ApplePushService.html for more info. I think it has a good overview of how the notifications work.Well seems like that rumor of iOS 5.0.1 is finally gone the way of the dogs since developers got a beta of 5.1. So as stated earlier in the master discussion-> I suspect if you are filling up this thread with false post or creating a master set of links to various post that are unreliable you are wasting your time. Press is not going to touch the story due to poor or inaccurate sources which may be links from the master thread. This can include inaccurate information, combination of conflicting post or postings from users which may not own the device. Reputable press organizations have policies that require discloser and strict rules about what is a reliable source for a story. It is clear that many of the post in the master thread, which are links presented here are questionable.
Sorry to say that postings taken without any analysis of their totality have been propagated via various sites, for example sites such as http://www.2012federalbudget(dot)com. (Do not visit but I suspect that this is not the 2012 federal-budget site you would expect based on analysis of the records. There are plenty of sites like http://www.2012federalbudget(dot)com propagating questionable post in these threads.) One site for example in the discussion thread used a self signed certificate, the site had a log in to allow users to enter their OpenID. Seems many of these sites are pop and drop drupel configurations.
So remember this is how the really bad rumor of iOS 5.0.2 got started, the 5.1 memory leak issue, iCloud Issues, call quality, address book, etc.
Some of the postings have been very comical, I think the latest now is a dropbox issue. Seems that the length of the previous thread has resulted in various app engines of some proxy servers/tools reaching their limits.
So I would make sure to know the source of any information you link to. Make sure you avoid entering any information to outside links such as OpenID or Apple ID, these are big prize items for anyone with malicious intent. If you have issues and are a valid user contact APPLE CARE. (Note link is using McAfee Secure Short URL Service, and is https.)
http://mcaf.ee/ricdt
The original solution still represents a high level of success for users having any battery issues.
Install 5.0.1 on your iPhone 4s. Some users posting they are still using older versions, bad fake serial numbers, etc.
Make sure your device can run iOS 5.0.1 and is not altered.
Make sure you use a new Sim, not some cut down version which many users admit to doing. (Again, worth confirming what people are posting.)
Reset the device doing a hard reset and software reset.
Let battery drain and then charge for the full cycle, which is 24 hours.
I think you will find you will get the battery usage that APPLE has stated for the device.
Best of luck, stay safe and thanks -
Help with my MBP (Late-2011) battery life~
Hi All,
I just bought this MBP like 2 weeks ago & I found that the battery life is a little short.
Only lasted 3.5-4 hours. In saying that, I'm not doing anything extreme. Only browsing the web and doing some homework on Words & Excel.
If I happened to go on youtube or some video streaming site, the battery life only go as far as 2-2.5 hours.
Is this normal? I'm new to MBP & I'm loving every single bit of it.
I read the description on the website says the battery can last up to 7 hours.
I was wondering if my battery faulty or something? or is it just me?
I have turned down the brightness of the screen to about 40% and keyboard light is at about 20% (just estimate).
Turned off my bluetooth device. What else can I do to make the battery life last longer??
Any tips anyone can share with me?
Thanks in advance !!If you have AppleCare, they will mail you the battery.
If you do not have AppleCare, call Customer Relations 1-800-767-2775. See what they can do for you. CS will determine if your model MBP qualifies for a free battery.
An Apple Store is not the only place to go. There may be an AASP closer. See KB Article: http://docs.info.apple.com/article.html?artnum=304398 How to find your nearest Apple Authorized Service Provider (AASP)
Another thing you can do is to go to System Profiler. Copy/Paste the Power info here. *Do not post any serial numbers.* -
This may not be a 4G issue at all but I've read alot about 4G being the ax murderer of batteries so I thought I would start here:
I'm trying to find any other tips to get more battery life out of my new phone. I went from 24 hours of standby time on a 5 year old blackberry with moderate usage to about 5 hours of battery time on very light usage brand new LG Revolution. Below are my settings:
LG Revolution
Purchase 8/13/11
Charged phone overnight with OEM charger (Not 12V)
Unplugged at 5:30 am
Sent two text messages
8:23 am down to 2 battery bars
Settings
4G
Wireless & Network
Mobile Networks
System Select
Network Mode
_______LTE / CDMA
__XX __CDMA Only
Display Brightness – Automatic
Vibration
Haptic Feedback off
Vibration ringer off
Bluetooth – Off
WiFi - Off
Mobile Hot Spot - Off
ActiveSync – Off
GPS
Verizon Location Services - Off
Standalone GPS Services - Off
Google Location Services – Off
Priscilla,
I need your help. This Revolution battery is killing me ....Part of th ereason I went with this phone is you felt the bat life would be better than the thunderbolt. Wow I can't imagine what the Tbolt is like.
Any tips or help you can give me would be appreciated.
Here is my efforts thus far:
Phone purchased 8-12-11
Charged phone overnight with OEM charger (Not 12V)
Unplugged at 5:30 am
Sent two text messages
8:23 am down to 2 battery bars
Settings I have studied from the Verizon website and various Internet sources:
4G - off
Wireless & Network
Mobile Networks
System Select
Network Mode
_______LTE / CDMA
__XX __CDMA Only
Display Brightness – Automatic
Vibration
Haptic Feedback off
Vibration ringer off
Bluetooth – Off
WiFi - Off
Mobile Hot Spot - Off
ActiveSync – Off
GPS
Verizon Location Services - Off
Standalone GPS Services - Off
Google Location Services - OffChristinaB_VZW wrote:
Hi Bulldog69,
Have you checked if you have Advanced Task Killer downloaded? If so, have you removed it? Was this successful in changing the results for the battery?
If you did not have Advanced Task Killer downloaded, there are applications out there that will tell you what is using your battery. It could be an application that is constantly running, it could be an application that is left running accidentally, etc. I recommend going to the Application Market and doing a search on the word "battery." This may help in determining the cause.
I did check my references and I am not showing that what you describe has been reported as a known issue.
Please post back with any results.
Best regards,
No I do not have any task killers as I heard they can be can cause more problems than they are good. I have checked apps and found nothing causing battery drain and my battery just started getting real bad in the last week without adding any new apps. -
Battery Life Decrease In Windows 7
I've recently installed Windows 7 Professional. And I have to say the overall experience is great so far. No issues installing it on my X200. All the drivers work, and all my previous software does too.
However, I've run into something I didn't really expect. The battery life on my notebook now has decreased quite a bit. Usually on Maximum battery profile, my computer only drains out anywhere from 8 to 12 watts. But now, it can hit up to easily 20W sometimes more on occasions while in maximum battery mode. And, it usually stays around 13 to 18 when not doing anything. This really isn't good. That's about an hour worth of battery life for me gone. It's not really a massively HUGE issue but keeping the wattage low as possible is always a big plus in the mobile world.
Any tips or maybe software updates that would fix this, would be greatly appreciated.
Another note: Intel Turbo Memory, only ReadyDrive really works if you have more then 2GB. Having ReadyBoost on slowed down shutting down, and sleeping greatly. Once I turned it off, it made things a lot faster. ReadyDrive seems to be okay. I don't really notice a difference but it isn't doing anything bad so I'll keep it on for now.Hi,
9 hours was simply possible with lowest/nearly lowest display brightness setting, energy star power mode enabled, battery stretch activated and re-activated wireless adapter... without wireless adapter activated I could work for almost 10 hours
using the following T500 configuration: 9 cell battery, SSD hard drive, switched to integrated graphics, WSXGA+ resolution, no USB device plugged in, battery strech enabled (optical drive disabled, audio muted, display settings changed, but wireless LAN enabled)
That's the reason I'm still not really satisfied with Windows 7's power consumption...
Thanks,
Martin
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