Affichage des articles dont le libellé est Device. Afficher tous les articles
Affichage des articles dont le libellé est Device. Afficher tous les articles

vendredi 28 décembre 2012

How to Save Battery Life

Posted by Unknown on 03:40 with No comments


Batteries are not all created equal--every battery is not suited to every job. Batteries mismatched with the items that need them can run them down quickly. Knowing how to select the right batteries and how to store them properly will save you time and money by assuring full battery life. Read on to learn more.

Instructions

    • 1
      Buy batteries that are fresh. Do this by going to a store with a high battery turnover such as a busy toy store or electronics department. Choose from the center of the rack, as store employees are taught to put new merchandise in the very front or back of the displays.
    • 2
      Buy zinc-carbon batteries for items like clocks, flashlights and calculators. Choose heavy duty zinc carbon batteries for small radios, and small lights like penlights. For items that are used constantly or have a high draw such as toys, boom boxes, camera flashes and tape recorders, use alkaline batteries.
    • 3
      Store batteries in the refrigerator inside a sealed plastic bag for keeping them fresh for the longest amount of time. You should leave them out long enough to reach room temperature before you use them.
    • 4
      Take batteries out of items that rarely get used. Put them in a zippered plastic bag. You can tape the bag to the item if possible or you can store them elsewhere, away from heat and light. Don't let them touch anything metal as they can lose power.
    • 5
      Keep batteries warm in your pocket if you need to use them outside. Put them in just before you use them and take them out again to keep warm when you're done.
    • 6
      Don't mix old and new batteries when you use them. The new ones will be stronger and can cause the older ones to leak battery acid. Battery acid is extremely caustic and will cause burns on your skin and anything else it touches. Wear gloves and use caution when removing leaking batteries. Make sure to dispose of batteries properly.

Tips & Warnings

  • Keep batteries in zipper bags in the fridge to keep them fresh longer.
  • Warm refrigerated batteries to room temperature before using.
  • Don't touch a leaking battery without gloves and caution. Battery acid is very caustic and will cause terrible burns to skin and everything else it touches.
  • Don't mix old and new batteries--it can cause the older ones to leak.


Read more: How to Extend Battery Life | eHow.com http://www.ehow.com/how_2151104_extend-battery-life.html#ixzz2GLUxrmkl

jeudi 27 décembre 2012

In a world where you can have 3D scenes rendered in real time as your smartphone’s background, plain black wallpapers aren’t the most eye-catching option. However, they can offer battery life improvements over colored wallpapers on some displays.

Plain black wallpapers can also make text easier to read, helping the icons stand out. They won’t be lost in the jumble of colors — or animated fish, if you’re using a live wallpaper.

Will It Save Battery Life?

On most computer displays, such as the computer screen you’re probably reading this article on, using a black background won’t save you any battery life. No matter what color a pixel is – whether it’s dark black or blinding white – there’s a backlight at the back of your screen and it’s constantly outputting light. The black pixels block more of the backlight, but it’s still behind the black pixel, using power.
For many portable devices – including Apple’s iPhone – you can’t save any battery life by using a black background. Like on a computer’s LCD monitor, the iPhone’s backlight is constantly shining when the screen is on.
However, this doesn’t apply if you’re using a mobile device with an AMOLED (also known as Super AMOLED or OLED) display. OLED screens don’t have a solid backlight. Each pixel on an OLED screen is an “organic light emitting diode” that produces its own light. When the pixel is black, it isn’t producing any light. When the pixel is white, it’s producing light.
In other words, if you use a black background on an AMOLED display, your display will produce less light. This will help save battery power, squeezing more battery life out of your device.
There are many devices with AMOLED displays out there, including the popular Samsung Galaxy S3. The Nokia Lumia 900 has an AMOLED display, although the Lumia 920 has an IPS LCD display. To check the type of display your smartphone or tablet has, examine its specifications or perform a Google search.
Image Credit: KhE on Flickr

Setting a Plain Black Wallpaper on Android

To set a plain black wallpaper on Android, open this page in your browser and tap here to view the plain-black wallpaper image. Long-press the image and tap Save image to save it to your device.
Long-press on your home screen and tap Gallery to select a wallpaper from your device. If you’re using an older version of Android or a manufacturer-provided interface, you may have to tap Wallpaper after long-pressing your home screen.
Tap the Download folder in the gallery, select your plain black wallpaper, and confirm the operation.
Remember: Setting a plain black wallpaper will only improve your Android’s battery life if it has an OLED display. However, we’ve also got some tips that will help maximize any Android device’s battery lifeDon’t use a task killer, though.

Setting a Plain Black Wallpaper on iOS

To set a plain black wallpaper on iOS, open this page in Safari and tap here to view the plain-black background image. Long-press the wallpaper and save it to your device.
Return to the home screen, tap the Settings icon, and select Brightness & Wallpaper.
Browse for a new wallpaper and select your Camera Roll – you’ll see the black image you saved. Select it as your background.
Setting a plain black wallpaper won’t improve your battery life on your iPhone, iPad, or iPod Touch. Don’t worry, though – we’ve got some tips for improving your iOS device’s battery life.
Sources: How To Geek

lundi 17 décembre 2012


You can now upload a photo to a specific Facebook album using the iOS and Android apps. There have been various methods in the past to get a photo into a preferred album, but the process is now streamlined.
iOS users will have the ability to add a photo, or photos, to an existing album or create a new album during the upload process. Android users will only be able to upload photos to an existing album. Before uploading a photo, however, Android users can create an album by visiting the Photos tab from the menu and tapping on the plus sign. It's an extra step, but with the same end result.
During the photo upload process, you will see a new album icon. Tapping on it will reveal the Facebook photo albums, allowing you to choose which album to upload the photo to. It's that simple.

Watch This Video From Cnet.com




Source: Cnet