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Tip Of The Week # 63 Improving Sprint Epic 4G Battery Life

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Thursday, 16 September 2010






EVDOinfo.com has long been your source for tips, tricks, hacks and suggestions for getting the most out of your EVDO service, and each week we will be highlighting a particularly interesting or popular topic in the "Tip of the Week" feature. To suggest future Tips of the Week, contact us at suggestions@evdoinfo.com or post your suggestions in the EVDO Forums.



 Improving Sprint Epic 4G Battery Life

 

While the Epic 4G does provide battery life than the EVO 4G since it uses a AMOLED screen which reduces power consumption. Many power users may still find their battery drained before the end of their day. We have put together ten tips that will help you reduce your power consumption to make it through your entire day without draining your battery completley.

3Gstore.com is currently offering a free car charger & an extra battery for free when you order the Epic 4G!


1. Screen Brightness: The brightness level of your screen 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 Epic to automatically adjust the brightness, which will automatically adjust the brightness depending on your current lighting conditions.

Adjusting the brightness of your Epic's AMOLED 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 pulling the notifcations menu down from the top of the home screen and select which wireless radios you want enabled 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 Epic 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. POWER SAVING MODE - The Epic 4G offers a "Power Saving Mode" which inteligently adjusts the brightness not only based on lighting but also analyzes the image to see how dark the image is and adjusts the AMOLED display brightness accordingly. This can be enabled by going to Settings > Sound & Display


Enabling Power Saving Mode

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 Location Services: If you don't often use services that use your location, you can disable location services to keep your Epic 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 which location services you don't wish to have running all the time. We recommend turning off GPS satellites unless you are using Google's Navigation application.
Disabling Location Services



10. Battery Use - The Epic 4G has has a "Battery Use" feature which will show you what components or services are consuming the most battery life. For example in the sceenshot below we can see that the display is consuming the most battery juice, while the cellular radio in standby mode is hardly consuming anything. This can be helpful in determing which unique services that you are using are consuming too much battery juice. This feature can be accessed by going to Settings > About Phone > Battery Use.



Battery Use Mode
 
If you have any of your own tips on how to conserve battery life on your Epic 4G, feel free to join the Sprint Samsung Epic 4G Battery Life discussion.


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Last Updated ( Friday, 28 January 2011 )
 
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