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Old June 9th, 2010, 10:16 AM   #1 (permalink)
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Default Possible Battery Fix from HTC

Last Updated: Jun 09, 2010


Battery performance depends on many factors, including network configuration, signal strength, the temperature of the environment in which you operate your phone, the features and/or settings you select and use, items attached to connecting ports, and your usage patterns for voice, data and other programs.

There are several differences between other phones and your new HTC EVO™ 4G that can impact your battery life:
  • HTC EVO has more radios to power (3G, 4G, Bluetooth, WiFi, GPS)
  • HTC EVO has a larger screen than most typical feature phones
  • HTC EVO has more capabilities than most typical feature phones
    • Management of multiple email accounts and syncing
    • WiFi access point
    • WiFi Router capability
    • 4G data
    • GPS
    • Access to several 3rd party applications through the Market
    • Applications and Processes running in the background
Because of all these new wonderful capabilities and features, it is up to you to manage your battery life experience. Here's how!


Multiple radios
The multiple radios use battery life even when you are not using them. To improve battery life, turn off your Bluetooth, GPS, 4G, WiFi and WiFi hotspot if you are not using them.

Preloaded widgets are available for your Home screen to conveniently monitor use of radios:
  • Power Control Widget – allows you to see radios that are ON and OFF
    • Widget > Power Control
  • Individual Widgets – available for Airplane Mode, Bluetooth, GPS, Mobile Network, Wi-Fi, 4G, Hotspot
    • Widget > Settings and select what you want to monitor
  • Running Services Widget – can help you identify services that are running that you no longer need that could be ended to save battery life
    • Shortcut > Settings > Running Services Widget


Live Wallpaper and backlight settings
Live Wallpaper uses significantly more battery than standard wallpapers when your screen is ON
  • Ambient Light Sensor – controls backlight brightness based on your ambient lighting condition
    • Settings > Sound and Display > Brightness
  • Manual Control – You can use your Power Control Widget to easily adjust your backlight intensity with a simple touch.


Email Applications Settings
  • Bottom line, email synchronization settings can have significant impact to battery life and the ideal settings are going to vary by person. Try different configurations that achieve the best compromise between convenience and battery life.
  • Generally, less frequent email syncing equals better battery life
  • Shorter polling frequencies (5 minute, 10 minute, 15 minute) can actually be worse for your battery life than As Items Arrive, especially if you do not have high volumes of email.
  • Email settings allow you to set up peak and off-peak hours for email sync on each email account
    • Pop Account – Mail > Menu > More > Settings > Send & Receive > Set Download Frequency
    • Exchange Account – Mail > Menu > More > Settings > Send & Receive > Schedule
    • Manual Sync – allows you to receive emails only when you choose to; this can be optimal for battery life if you don't necessarily need emails as quickly as they arrive. Sync by selecting Menu > Refresh


Preloaded Applications
There are several preloaded applications which update based on frequency settings:
  • Stocks
  • Weather
  • News
  • Peep
  • Flickr
  • Facebook
These applications have a settings menu that typically can be accessed by using the Menu button while you are in the application. In the settings menu there is an item called Update Schedule
(Menu > Settings > Update Schedule; this may slightly vary from App to App).

In general, the less frequently you allow these applications to update, the better your battery life. If you find there are applications you don't use at all, for the best battery life experience, configure the application to either not sync at all or to sync at the lowest frequency. You can also end the application or service by going to the Running Services Widget mentioned above.


Google Talk
When you sign up for the Google Market or Gmail with your Gmail account information, you are also signed in to the Google Talk instant messaging application. The Talk application tracks the presence of your Google Talk contacts in order to let you know who is available to instant message. Each presence change uses power, even if you do not have the Talk application open.

If you do not use Talk on your device or do not mind if it is only operating when you actually have the application open, then you can eliminate this extra battery consumption:
  1. Press Menu then tap All apps > Talk > Menu > More > Settings
  2. Uncheck the automatically sign in box.
  3. Make sure you exit the application by going to Menu > More > and selecting Sign Out
  4. In order to again receive Instant Messages through the Talk application, all you'll need to do is open the Talk application again and it will automatically sign you in.
Note: Make sure you always exit the application by selecting Sign Out to reduce battery consumption. Exiting the application by use of the back or home keys will not sign you out and battery life will not be improved.


4G
The 4G radio should only be turned on when the improved network speed is required for an application, such as YouTube, Web Browsing or Sprint Mobile Hotspot. When not in use, it's important to use the built-in 4G widget to turn the 4G radio OFF.

If you have your 4G radio ON, but are no longer in 4G coverage, then your device will be scanning in an attempt to re-acquire the 4G network. Your battery can be significantly drained by scanning, so if you know you will be out of 4G coverage for an extended period of time or if you are not acquiring a 4G signal as indicated in the task bar, it is important to turn your 4G radio OFF.

Even when in 4G markets, particularly when mobile, you may be going in and out of 4G coverage. If you notice that you do not have a 4G signal at any point in time, turning off the 4G radio will save you significant battery life. Simply turn it back on to check for 4G coverage when you are back in 4G coverage.

To check for the latest 4G coverage in your area, click here.


3rd-Party Applications
Be especially cautious with all 3rd-party applications that you download from the Android Market. Often times these applications have not been designed with battery life in mind. Many of these applications significantly impact your battery life and quite often they remain running even when you exit the application. It's important for you to understand the behavior of all the applications you download and to:
  • Learn how to use the running services application or other 3rd-party task managers to identify applications that are still running even when not in use and to end applications that are still running but no longer needed
  • Know how to close the application so that it does not continue running
  • If the applications synchronize data, make sure you optimize the synchronization settings for improved battery life


Link: Support - Article
CDMA trick:
Download an app by the name Network
Run it to see if its showing GSM or CDMA auto (PRL)
It should be showing CDMA auto (PRL) Refer to the images below (original link)








Also need to calibrate the battery...
With the phone in the on position.

Fully charge the battery with the phone on... (until the led turns green.)

Once the led turns green, unplug the charger until the led goes off.

After the led goes off, plug the charger back in. When the led turns green , power off the phone.

now.... with the phone fully powered off...

1. Unplug the charger.

2. Wait until led goes off.

3. Plug charger back in until the led turns green. When it turns green, unplug the charger again and go to step 1.

4. repeat steps 1 and 3, 10 times. This may take anywhere from 30 seconds to 30 mins per cycle. Typically only about 1 minute. though.

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Old June 9th, 2010, 10:17 AM   #2 (permalink)
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Google talk is definitely causing an issue with battery life

Install Battery Status Pro to get a better reading on battery life from the market..

System Panel Lite will also give you some good info on whats going on with the phone
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Old June 9th, 2010, 10:49 AM   #3 (permalink)
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Good info.
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Old June 9th, 2010, 11:00 AM   #4 (permalink)
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Questi on about "Running Services Widget " I dont want to turn off anything I shouldn't I dont recognize some of these things. Can you elaborate on what they are?

I.e. ObexService, Htc Dm Service etc....
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Old June 9th, 2010, 11:07 AM   #5 (permalink)
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i never use google talk, so i'm glad you posted this. i unchecked the auto sign in and signed out. thanks!
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Old June 9th, 2010, 11:08 AM   #6 (permalink)
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I am testing the battery and signal issue now with one of my techs. I will post back in a few hours..
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Old June 9th, 2010, 11:09 AM   #7 (permalink)
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Im newer to android but definitely need help with the email.....Unless im not seeing it, how do I set it all my email accounts to "as they arrive"?? I dont need it checked regularly as my emails come in at all different times.Thanks in advance.
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Old June 9th, 2010, 11:09 AM   #8 (permalink)
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Quote:
Originally Posted by Palomino View Post
Questi on about "Running Services Widget " I dont want to turn off anything I shouldn't I dont recognize some of these things. Can you elaborate on what they are?

I.e. ObexService, Htc Dm Service etc....

If you did not install it don't turn it off yet.. Leave them running..
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Old June 9th, 2010, 11:12 AM   #9 (permalink)
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Quote:
Originally Posted by evotitans View Post
Im newer to android but definitely need help with the email.....Unless im not seeing it, how do I set it all my email accounts to "as they arrive"?? I dont need it checked regularly as my emails come in at all different times.Thanks in advance.
Click on menu,

click on settings,

click on account and sync,

un check Back ground data for now
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Old June 9th, 2010, 11:17 AM   #10 (permalink)
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Did NOT know about the google talk thing. I've never used it, so thanks for telling me to turn it off
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Old June 9th, 2010, 11:22 AM   #11 (permalink)
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Quote:
Originally Posted by eieio View Post
Click on menu,

click on settings,

click on account and sync,

un check Back ground data for now
I have that done....but is there not an option in email to set it "as it arrives"?

Sorry I'm just still used to the Pre.
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Old June 9th, 2010, 11:28 AM   #12 (permalink)
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i love you more than I did yesterday :P great post E!!!
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Old June 9th, 2010, 11:40 AM   #13 (permalink)
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If people are really concerned about battery life, they should definitely take a hard look at the overclock widget. I can easily go 2 days without charge with my regular use.
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Old June 9th, 2010, 11:41 AM   #14 (permalink)
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I found this guide last night and disabled google talk right away. Im now running at 16 hours unplugged and still have 50% battery!!!!!!!!!!!!!!!!
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Old June 9th, 2010, 11:48 AM   #15 (permalink)
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We are noticing Qik and Fring are doing the same thing as Google talk.. If your not using those two programs make sure to exit out of the application before you close them out.
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Old June 9th, 2010, 11:51 AM   #16 (permalink)
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We are testing the battery, going to condition it. Charge and discharge it to see how many charges it takes for it to meet the state hours of use..

The signal bars 3g,wifi and wimax on some of the units are also not registering properly..
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Old June 9th, 2010, 12:01 PM   #17 (permalink)
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I thought conditioning didn't have an affect on lithium ion batteries.

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Old June 9th, 2010, 12:03 PM   #18 (permalink)
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i dont understand why anyone is having bad battery life. i go all day and never go under 20%
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Old June 9th, 2010, 12:10 PM   #19 (permalink)
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Quote:
Originally Posted by eieio View Post
Click on menu,

click on settings,

click on account and sync,

un check Back ground data for now
Quote:
Originally Posted by evotitans View Post
I have that done....but is there not an option in email to set it "as it arrives"?

Sorry I'm just still used to the Pre.

Same here, I want it to be "as it arrives." Is this possible with this phone? Also concerning turning background data off, some items like the app market require it to be on. I visit the market enough that I don't want to turn it off and on every time I visit it. Is it a huge impact if I leave background services on and auto sync on and only have my gmail account set to sync? That is really the only item I want to sync along with my att.net email account and the only way I can get those emails in any reasonable fashion is to set the download time to less than an hour. I need to get those emails as they come in.

I know I am nitpicking here, but I want this phone to be perfect for me. I love customization.

Thanks for the other tips, especially the google talk one. That has been bugging me for a while seeing it run in the background.


EDIT: One question concerning system panel. the inactive (cached) apps that are listing on the main screen. Do those take up any resources in that state? They don't appear to to me, but I just want to be sure. Still trying to figure this app out. I need a guide for it lol.
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Old June 9th, 2010, 12:12 PM   #20 (permalink)
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Quote:
Originally Posted by aliveon2legs View Post
I thought conditioning didn't have an affect on lithium ion batteries.


Yes and no.. Batteries sometimes have a memory effect, life expectancy, estimated usage time, and will loose effectiveness overtime..

They will also improve after a few cycles of use, so if it is rated for x amount of time a few charges should tell whether they are living up to that claim
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Old June 9th, 2010, 12:19 PM   #21 (permalink)
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sticky this? I know everyone hates them but this could really help with the issues people have been having..
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Old June 9th, 2010, 12:28 PM   #22 (permalink)
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Outstanding post.

Keep us updated on your progress.

btw you have pm.

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Old June 9th, 2010, 12:52 PM   #23 (permalink)
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Quote:
Originally Posted by aliveon2legs View Post
I thought conditioning didn't have an affect on lithium ion batteries.

It doesn't, but the myth continues. For every "technical" article that says it does there are others that say it doesn't. Also, on the iPhone a full discharge then recharge would calibrate the battery meter (NOT condition the battery) but I've seen nothing to state that this phone has the same requirement.
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Old June 9th, 2010, 12:57 PM   #24 (permalink)
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Quote:
Originally Posted by eieio View Post
If you did not install it don't turn it off yet.. Leave them running..
I would love to see a list of HTC/Google applications that need to continue running. I'm certain I'm killing things that I shouldn't with ATK. I'm probably also leaving a couple of things running that don't need to be.
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Old June 9th, 2010, 01:26 PM   #25 (permalink)
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Quote:
Originally Posted by SeauxCrazy View Post
Did NOT know about the google talk thing. I've never used it, so thanks for telling me to turn it off
This!
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Old June 9th, 2010, 01:54 PM   #26 (permalink)
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i have already done some or most of this, but this is good thread thanks .

i can not seem to get rid of google talk running in the background unless i quit the process in running services. i have auto sign in unchecked and everything in the settings unchecked for that matter. i end the program by signing out, but the service remains running in the background. anyway to really stop this service with out task killers? even after reboot the talk is still running.

questions on the stock services running, should i be concerned with them running? how much battery life do they really drain?

things that are running on my phone.

calender - obexservice and connectivity. these seem to restart on their own if i stop the service. are there settings for the calender?

google - gtalk service - why, i don't use this at all

voicemail - cm_service - what is this for? do i need a service running for voicemail? i just have the basic voicemail setup, does this phone run a visual voicemail program that i missed.

HTC DM - HtcDmService - no idea what this is or what its for.

Sprint Zone - updateservice - what is this for, do i need it? can i get rid of it?

HTC IQ Agent - agent service - no clue what this is. can i get rid of it?

com.smithmicro.dm - DMserviceapp - again no clue what this is. do i need it, can i get rid of it?

Touch Input - touch input - ok i think i get this one, but does the phone really need to run a service to save my touch settings?

any help with these services would be greatly appreciated.

do i need to have the phone rooted to remove these programs, or services. this is my first android phone and i would rather not mess with it like that when its so new.
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Old June 9th, 2010, 01:54 PM   #27 (permalink)
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turning off things like 4G, wifi, bluetooth etc, apps that don't need to be running, as well as disabling the auto sync (background data, auto sync) substantially increases battery life so much so that no one, i mean absolutely no one, should be experiencing battery life issues now. i started with a full charge at 7:30am and it's now about 2:51pm and i'm at 80%. this is what i expect from my device right here. amazing.
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Old June 9th, 2010, 01:57 PM   #28 (permalink)
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i have already done some or most of this, but this is good thread thanks .

i can not seem to get rid of google talk running in the background unless i quit the process in running services. i have auto sign in unchecked and everything in the settings unchecked for that matter. i end the program by signing out, but the service remains running in the background. anyway to really stop this service with out task killers? even after reboot the talk is still running.

questions on the stock services running, should i be concerned with them running? how much battery life do they really drain?

things that are running on my phone.

calender - obexservice and connectivity. these seem to restart on their own if i stop the service. are there settings for the calender?

google - gtalk service - why, i don't use this at all

voicemail - cm_service - what is this for? do i need a service running for voicemail? i just have the basic voicemail setup, does this phone run a visual voicemail program that i missed.

HTC DM - HtcDmService - no idea what this is or what its for.

Sprint Zone - updateservice - what is this for, do i need it? can i get rid of it?

HTC IQ Agent - agent service - no clue what this is. can i get rid of it?

com.smithmicro.dm - DMserviceapp - again no clue what this is. do i need it, can i get rid of it?

Touch Input - touch input - ok i think i get this one, but does the phone really need to run a service to save my touch settings?

any help with these services would be greatly appreciated.

do i need to have the phone rooted to remove these programs, or services. this is my first android phone and i would rather not mess with it like that when its so new.
the only thing you need to stop is gtalk and sprint zone. the rest are things that make the device function. HTC iq agent is part of HTC Sense i believe, as well as HTC DM (think that stands for device manager). voicemail should be rather obvious...and calendar won't hurt you, let it run.

if you do what i said above, disable 4G, wifi and all that crap, and cut syncing off, you'll notice a huge difference in battery performance. with these settings, i could go 37.5hrs theoretically before needing to charge. i only need it to last for 17hrs personally. if i go out after work, then 19-20hrs tops

and obviously no one is gonna want to keep auto sync off at all times. i just keep it off while i'm at work because i'm on a computer. when i leave, i'll turn syncing back on with the push of one button on the power widget. easy peasy.
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Old June 9th, 2010, 02:22 PM   #29 (permalink)
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also, guys if you wanna ensure that things are stopping when you hit the sleep/wake button to turn the screen off, just check your awake time, leave it on that screen, turn the screen off, wait a little (like 30sec-min), then turn it back on. should say the same as before you shut it off. maybe off by a few seconds. if it's not, this means something is still running, which is keeping it awake.

i'm glad we finally got all the settings figured out for the battery. very satisfied now.
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Old June 9th, 2010, 02:23 PM   #30 (permalink)
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turning off things like 4G, wifi, bluetooth etc, apps that don't need to be running, as well as disabling the auto sync (background data, auto sync) substantially increases battery life so much so that no one, i mean absolutely no one, should be experiencing battery life issues now. i started with a full charge at 7:30am and it's now about 2:51pm and i'm at 80%. this is what i expect from my device right here. amazing.
To what auto sync are you referring?

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Old June 9th, 2010, 02:31 PM   #31 (permalink)
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Two batteries test so far, two more to go no issue so far. They actually exceeded the times listed..

There is diffinitely a problem with the programs running in the back round some phones are handling it differently than others..

Also have some feed back coming on the Task killers people are installing.. Interesting to say the least..

Should be done battery testing in about 1-2 hours and have some feed back on the back ground programs..
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Old June 9th, 2010, 02:32 PM   #32 (permalink)
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the only thing you need to stop is gtalk and sprint zone. the rest are things that make the device function. HTC iq agent is part of HTC Sense i believe, as well as HTC DM (think that stands for device manager). voicemail should be rather obvious...and calendar won't hurt you, let it run.

if you do what i said above, disable 4G, wifi and all that crap, and cut syncing off, you'll notice a huge difference in battery performance. with these settings, i could go 37.5hrs theoretically before needing to charge. i only need it to last for 17hrs personally. if i go out after work, then 19-20hrs tops

and obviously no one is gonna want to keep auto sync off at all times. i just keep it off while i'm at work because i'm on a computer. when i leave, i'll turn syncing back on with the push of one button on the power widget. easy peasy.
thanks, yeah i'm actually not really having battery issues as i have done most of this right off the start. i just like know about everything

i disable all antenna's when not in use. i have even been disconnecting network connections all together. i mostly text message for communications with some calls and very little voicemail. my important email is work and i am not allowed to connect to it outside of work. and i am ok with that . my personal email (i use sbcglobal mail) is set to only check a few times a day. but with autosynch off will it synch at all? or is auto synch only for the accounts under the general synch program? the only one i use is weather and i just manually update that by clicking on a home screen link.

so if i turn off all network connections will this save battery life? or will it still use battery if items are trying to sync? just wondering if its better to turn sync off, network connections off or both?

i have both talk and sprint zone set not to sync and signed out and all that but the processes are still running. should i be concerned at all. i have no contacts that use google talk. sprint zone is unchecked everything sync and set sync to once a month, no manual setting. both of these still run. do i just have to close these manually in running processes or not worry about it at all.

and a question on backgrounds. i understand live backgrounds are a waste. but should i stay away from brightly colored ones as well?

i currently use the default sprint scene with it modified of course. i like the carbon fiber look. i can not find the carbon fiber that is the same without using the sprint scene. it seems to have the live clouds in the background. though i can't seem to remember seeing them run since Saturday. is this background ok to use power wise?

thanks again for your help.
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Old June 9th, 2010, 02:35 PM   #33 (permalink)
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How do I disable Google Talk from starting on its own when the phone is powered on? I followed the steps to uncheck it from automatically signing in but Google Talk is still a running service when the phone is turned on. Even an app that kills whatever you want from starting up did not work.
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Old June 9th, 2010, 02:39 PM   #34 (permalink)
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it seems to have the live clouds in the background. though i can't seem to remember seeing them run since Saturday. is this background ok to use power wise?

thanks again for your help.
The clouds aren't part of a background, they're part of the clock/weather widget on your home screen. If it's cloudy outside, it will show you clouds. If it's raining outside, it will show rain on your screen.
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Old June 9th, 2010, 02:49 PM   #35 (permalink)
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The clouds aren't part of a background, they're part of the clock/weather widget on your home screen. If it's cloudy outside, it will show you clouds. If it's raining outside, it will show rain on your screen.

AH HA!! that explains why i haven't seen them .. i turned that widget off and went for the small clock... lol
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Old June 9th, 2010, 02:58 PM   #36 (permalink)
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Task Killers and CPU

2 devices tested with Task killers installed one had 2 non stock app the other one had 40 non stop apps..

The task killers kicked in trying to kill the apps and the CPU got up to 600 and stayed there for about 1 hour on the device running the 40 apps

On the device running the 2 apps it kicked in for about 30 seconds and never turned back on for the hour..

My theory is if the task killer is trying to control a limited number of apps or the apps work as they are suppose to it might be effective..

If the task killer is trying to control a large amount of apps it is running up CPU usage as bad or worse than the apps it is trying to control.

My opinion is they are probably worthless and not very effective if trying to control a device with a large amount of apps running or if an app is unruly..

Anyone with an opinion please feel to join in..
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Old June 9th, 2010, 03:28 PM   #37 (permalink)
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To what auto sync are you referring?


menu > settings > accounts and sync > uncheck auto sync and background data. this will kill syncing of everything data related. this is the main cause of the battery drain.


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Task Killers and CPU

2 devices tested with Task killers installed one had 2 non stock app the other one had 40 non stop apps..

The task killers kicked in trying to kill the apps and the CPU got up to 600 and stayed there for about 1 hour on the device running the 40 apps

On the device running the 2 apps it kicked in for about 30 seconds and never turned back on for the hour..

My theory is if the task killer is trying to control a limited number of apps or the apps work as they are suppose to it might be effective..

If the task killer is trying to control a large amount of apps it is running up CPU usage as bad or worse than the apps it is trying to control.

My opinion is they are probably worthless and not very effective if trying to control a device with a large amount of apps running or if an app is unruly..

Anyone with an opinion please feel to join in..
i agree. there's no need for task killers if you know what you're doing and looking for. i had one but removed it. also removed the battery widget that i had. i just have stock stuff running now which is why my battery has improved vastly.
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Old June 9th, 2010, 03:32 PM   #38 (permalink)
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After following this thread, I have noticed a significant improvement (based on my normal usage)...I plan on continue testing it out for the remainder of the day and again tomorrow...starting with a full charge in the morning and not plugging it in until the battery gets very low. But again, things are looking soooo much better.

Oh and this is without auto-sync being disabled...I need this to stay on.
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Old June 9th, 2010, 03:35 PM   #39 (permalink)
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thanks, yeah i'm actually not really having battery issues as i have done most of this right off the start. i just like know about everything

i disable all antenna's when not in use. i have even been disconnecting network connections all together. i mostly text message for communications with some calls and very little voicemail. my important email is work and i am not allowed to connect to it outside of work. and i am ok with that . my personal email (i use sbcglobal mail) is set to only check a few times a day. but with autosynch off will it synch at all? or is auto synch only for the accounts under the general synch program? the only one i use is weather and i just manually update that by clicking on a home screen link.

so if i turn off all network connections will this save battery life? or will it still use battery if items are trying to sync? just wondering if its better to turn sync off, network connections off or both?

i have both talk and sprint zone set not to sync and signed out and all that but the processes are still running. should i be concerned at all. i have no contacts that use google talk. sprint zone is unchecked everything sync and set sync to once a month, no manual setting. both of these still run. do i just have to close these manually in running processes or not worry about it at all.

and a question on backgrounds. i understand live backgrounds are a waste. but should i stay away from brightly colored ones as well?

i currently use the default sprint scene with it modified of course. i like the carbon fiber look. i can not find the carbon fiber that is the same without using the sprint scene. it seems to have the live clouds in the background. though i can't seem to remember seeing them run since Saturday. is this background ok to use power wise?

thanks again for your help.
disabling auto sync and background data will not still draw power in the sense that apps are trying to sync. disabling syncing all together tells the app not to try to push. in other words, disabling syncing doesn't use power. only saves it.

what "network connection" are you referring to?

stay away from an live wallpapers unless you have the battery power to spare. no matter what color they are, a live wallpaper eats at the power because it's constantly running.

as far as the live clouds and such, i'm not sure. i don't think that's a background but part of the weather widget. i don't use that one but a stock clock instead. i would assume that the weather widget does use some power though for animation. maybe not as much as a live wallpaper though.


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After following this thread, I have noticed a significant improvement (based on my normal usage)...I plan on continue testing it out for the remainder of the day and again tomorrow...starting with a full charge in the morning and not plugging it in until the battery gets very low. But again, things are looking soooo much better.

Oh and this is without auto-sync being disabled...I need this to stay on.
yes, it's possible to still get good battery life without disabling auto-sync. i know lots of people need that to stay on. my settings are just if you want maximum power savings.
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Old June 9th, 2010, 03:36 PM   #40 (permalink)
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menu > settings > accounts and sync > uncheck auto sync and background data. this will kill syncing of everything data related. this is the main cause of the battery drain.
Thanks. It's good to know there is a centralized location for all of this. I think I'll turn them off on an individual basis, though. Some of these things might be worth leaving on. I can at least see some value in leaving the weather widget to auto sync.

I'm not really sure about Google and Facebook. I imagine both of those are used to keep my calender updated.
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Old June 9th, 2010, 03:41 PM   #41 (permalink)
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Thanks. It's good to know there is a centralized location for all of this. I think I'll turn them off on an individual basis, though. Some of these things might be worth leaving on. I can at least see some value in leaving the weather widget to auto sync.

I'm not really sure about Google and Facebook. I imagine both of those are used to keep my calender updated.
yes to the calendar if you have it linked up on the actual calendar app.

i've set auto-sync for apps to 4hrs for the ones that will go that far. with auto-sync on, email will still push regularly but all the other crap will push at longer intervals, and i can also manually load it.
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Old June 9th, 2010, 04:15 PM   #42 (permalink)
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yes to the calendar if you have it linked up on the actual calendar app.

i've set auto-sync for apps to 4hrs for the ones that will go that far. with auto-sync on, email will still push regularly but all the other crap will push at longer intervals, and i can also manually load it.
So if auto-sync is off, it won't push my email? I ask because I didn't see any of my email clients on that screen.
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Old June 9th, 2010, 04:24 PM   #43 (permalink)
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what "network connection" are you referring to?

sorry its Mobile Network or 3g connection.

i was looking to see if you could disable 3g and use edge or whatever, some friends told me they turn off 3g on their phone to conserve battery. the evo just seems turn off all mobile connections.

so i turn off wifi, bluetooth, gps, 4g and mobile connections when i know i don't need my phone to connect for anything. still gets calls and texts.

mobile networks - widgets - setting - mobile networks, adds a switch to your home screen. i go back and forth using with this one. not sure it matters or not if nothing is syncing anyway.


my uptime never seems to stop when putting the phone to sleep. only awake time seems to stop for me. i still seem to get decent battery life tho.
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Old June 9th, 2010, 05:25 PM   #44 (permalink)
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i currently use the default sprint scene with it modified of course. i like the carbon fiber look. i can not find the carbon fiber that is the same without using the sprint scene. it seems to have the live clouds in the background. though i can't seem to remember seeing them run since Saturday. is this background ok to use power wise?

thanks again for your help.

Background color does not effect battery life. The backlight is either on or off and that is what uses battery. One static image vs another will always be the same as far as battery drain.
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Old June 9th, 2010, 05:27 PM   #45 (permalink)
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also, guys if you wanna ensure that things are stopping when you hit the sleep/wake button to turn the screen off, just check your up time, leave it on that screen, turn the screen off, wait a little (like 30sec-min), then turn it back on. should say the same as before you shut it off. maybe off by a few seconds. if it's not, this means something is still running, which is keeping it awake.

i'm glad we finally got all the settings figured out for the battery. very satisfied now.

I think you mean awake time. Up time is the amount of time the phone has been powered on, whether it is asleep or not, it is always going up non stop until you actually power off the phone.
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Old June 10th, 2010, 07:23 AM   #46 (permalink)
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So if auto-sync is off, it won't push my email? I ask because I didn't see any of my email clients on that screen.
correct

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I think you mean awake time. Up time is the amount of time the phone has been powered on, whether it is asleep or not, it is always going up non stop until you actually power off the phone.
yup, that's what i meant. sorry about that. corrected.
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Old June 10th, 2010, 07:29 AM   #47 (permalink)
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sorry its Mobile Network or 3g connection.

i was looking to see if you could disable 3g and use edge or whatever, some friends told me they turn off 3g on their phone to conserve battery. the evo just seems turn off all mobile connections.

so i turn off wifi, bluetooth, gps, 4g and mobile connections when i know i don't need my phone to connect for anything. still gets calls and texts.

mobile networks - widgets - setting - mobile networks, adds a switch to your home screen. i go back and forth using with this one. not sure it matters or not if nothing is syncing anyway.


my uptime never seems to stop when putting the phone to sleep. only awake time seems to stop for me. i still seem to get decent battery life tho.
yup sorry i meant awake time. and i'm sure that disabling the mobile network saves some more power. you won't get phone calls and messages with it switched off though. with all of that off...your phone would last for days easily lol
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Old June 10th, 2010, 09:22 AM   #48 (permalink)
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I use my phone so much that I usually have to charge it 2-3 times a day. I went on eBay yesterday and found two batteries with a battery charger for $15!! Once it arrives I hope to only have to charge my phone once.
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Old June 10th, 2010, 12:27 PM   #49 (permalink)
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and i'm sure that disabling the mobile network saves some more power. you won't get phone calls and messages with it switched off though. with all of that off...your phone would last for days easily lol

actually you will still get phone calls and text messages. turn it off and the 3g symbol disappears, but you will still see your cell reception bars. i can't verify voicemail at this time. i believe this just kills the data.

i think its because sprint uses separate networks for data and voice.
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Old June 11th, 2010, 11:37 AM   #50 (permalink)
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actually you will still get phone calls and text messages. turn it off and the 3g symbol disappears, but you will still see your cell reception bars. i can't verify voicemail at this time. i believe this just kills the data.

i think its because sprint uses separate networks for data and voice.
actually, i believe turning off mobile network changes it to 2G. i think.
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