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Improve Your HTC EVO 4G Battery Life

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Wednesday, 16 June 2010
With the HTC EVO 4G's large display and endless list of features, many have been worried about the battery life. While EVO users can expect about 6-8 hours of battery life with the default settings and average usage, that is not necessarily a guarantee - some users may experience longer battery life if they aren't using the phone frequently throughout the day, and heavy users may not get anywhere near 6 hours. We have done extensive testing with the EVO and have found that there are a number of things you can do to make sure you are getting the most life out of your battery as possible. Below you will find the top 10 things that we recommend for improving your EVO's battery life:


1. Screen Brightness: Considering that the EVO 4G has a very large screen, the brightness level can significantly impact your battery life. You can adjust the brightness of the display by going to Settings > Sounds & Display > Brightness (under "display settings"). You can also set your EVO to automatically adjust the brightness, which will automatically adjust the brightness depending on your current lighting conditions.


Adjusting the brightness of your EVO's screen


2. Turning off wireless services: Turning off wireless services that you don't need will save a lot of battery power, as each service has its own radio which consumes power even when you're not using the wireless service. If you're not in a 4G area, turn off 4G so that the phone doesn't waste battery power searching for a 4G network that doesn't exist where you're at. Same goes for WiFi, Bluetooth, and GPS - if you're not using them, turn them off! You can manage 4G, WiFi, Bluetooth, and GPS settings conveniently by sliding over to the screen left of the home screen as shown below.


Manage Wireless Services


While turning off WiFi is a great idea if you're not using it, if you ARE frequently connected to WiFi you may want to change the WiFi sleep policy to "never". This may sound like a bad idea, but by default your WiFi connection will enter sleep mode after 15 minutes of inactivity and your phone will then switch to 3G/4G connectivity, which uses more power than WiFi to sync, check email, and retrieve other data. You can change the WiFi sleep policy by going to Settings > Wireless & networks > Wi-Fi Settings. Press the Menu button and tap Advanced, then select "Wi-Fi sleep policy" and choose "Never".
                          
   
Changing the WiFi Sleep Policy


3. Lower Screen Timeout Setting: After you aren't using the EVO for a specified amount of time, it will automatically turn off the display to save battery. You can change this setting to 15 seconds, 30 seconds, 1 minute, 2 minutes, 10 minutes, or never. Obviously, your phone uses more battery when the screen is on than when it's off, so changing this setting to the lowest one is a great idea. If you are constantly using your phone throughout the day, changing the timeout to 15 seconds really adds up and can save a significant amount of battery time. This setting can be found by going to Settings > Sounds & Display > Screen Timeout.


Changing the screen timeout setting

4. Monitor "Running Services": Since Android allows multitasking, applications can run in the background even when you're not actively using them. Keep an eye on the services that are running in the background, because you may have apps running in the background that you don't need that are using your phone resources and battery. You can see which services & applications are running in the background & terminate them by going to Settings > Applications > Running Services.


Managing services & applications that run in the background

5. Disable "Always-on Mobile Data": Turning this feature off reduces power consumption by only using 3G/4G radios when they're needed to sync with your accounts instead of always having them active. This is not the same as turning the 3G/4G radios OFF; the radios will automatically turn on when your phone needs them (for example, to check email) - they just won't be on and wasting power all the time. To disable 'always-on mobile data' Go to Settings > Wireless & networks > Mobile networks & un-check "Enable always-on mobile data". We haven't found any downsides of disabling this feature, as Gmail and services still sync properly.


Disabling Always-on Mobile Data

6. Turn off Background data & Auto-sync: If you're not using Google services that you need to sync automatically, go to Settings > Accounts & Sync and un-check the "Background data" and "auto-sync" boxes so that applications cannot sync, send, and receive data whenever they want to. The downside to this is that you will have to manually do things that usually sync automatically, like checking your email - but if you don't mind or don't check email often anyway, this is a great way to save battery life.

Turning off Background Data & Auto-Sync

If you prefer not to disable background data & auto-sync, you might want to consider changing how frequently data is updated by changing the update schedule for each account such as GMail, News, Weather, and other services. The settings vary depending on the service, but the majority of these services can be changed by going to: Settings > Accounts & sync. Select an account from the list and then tap "Account settings" to change the sync frequency.


Changing update frequency for Accounts & Services

7. Don't use a Live Wallpaper: Live (animated) wallpapers are really cool, but they use a lot of processor power which will drain the battery quicker than using a still photo as your wallpaper. If you're trying to squeeze every last minute out of your battery, then don't use the live wallpapers.

8. Manually Turn Off Your Screen: Even if you have your screen timeout set to 15 seconds, you can squeeze more battery life out of your phone by turning off the display manually as soon as you are done using your phone for the moment.

9. Turn off features that use vibration: By default the EVO is set to ring & vibrate for incoming calls, since most of us don't need to have it ring and vibrate, you can disable the vibrating feature, which will help you squeeze a little more juice out of your battery! This setting can be found by going to Settings > Sound & Display (simply un-check "Phone Vibrate"). Another feature that the EVO uses by default that isn't really needed is the haptic feedback, which vibrates as you type on the keyboard to provide a sense of feedback while typing. If you send a lot of text messages or use any other applications that use the keyboard frequently, then disabling this feature can noticeably improve battery life. This setting can be found by going to Settings > Language & Keyboard > Touch Input > Text Input (simply un-check "Vibrate when typing").

                           
                              Disabling vibrate for incoming calls                         Disabling the 'vibrate when typing' feature

10. Turn Off Location Services: If you don't often use services that use your location, you can disable location services to keep your EVO from using the 3G & GPS radios to constantly determine your current location. This can drain your battery quickly, especially if you're using GPS. To disable location services, go to Settings > Privacy and un-check "Use My Location".

Disabling Location Services
 
 
If you have any of your own tips on how to conserve battery life on your EVO 4G, feel free to join the HTC EVO 4G Battery Life discussion.


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Last Updated ( Thursday, 17 June 2010 )
 
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