Laptop Battery Tips

Optimizing laptop battery usage is very important to increase the battery life and performance.

Following are the Top tips to optimize the laptop battery :

• Buy smart: Look for notebooks with low power consuming processors like the Intel’s “CULV” “Consumer Ultra-Low Voltage” processors or AMD processors with “cool & Quiet” feature.
• Dim screen brightness: Choose an environment with adequate lighting—less brightness means you’ll drain less power from your battery.Use the Function key (Fn) available in most of the laptops to dim the brightness.
• Run your applications wisely: To get the most from your laptop, even when multitasking on the go, run resource intensive applications just when actively using them. Then make sure to close the applications you aren’t using.Running Video on the laptop will consume the battery very fast.Avoid to run video almost all time.
• Close unused applications: Programs will still use power while sitting idle.Also some unrequired background processes can  be closed using the task manager.Stop such processes from starting at boot.
• Have the right RAM for your needs: With appropriate RAM, instructions run off memory instead of disk. Less power is needed to refresh the RAM than to spin the hard drive.So increasing the RAM in in the laptop with high resource usage works will highly improve the battery life.
• Clean your battery: Rub the battery’s metal contacts with rubbing alcohol every two months. Allow to dry before re-inserting.
• Remove extra accessories: Unplug items like PC cards, USB and FireWire devices that are not being used.
• Use built-in power management devices: Enable this feature and set your system to “Battery Optimized” mode or “Max Battery” mode. Put your computer to sleep earlier and turn off the screen backlight sooner.Start > Control Panel > Power Options (in Classic View).
• Disable Wi-Fi and Bluetooth if not being used: Wireless LAN and Bluetooth access uses power even when it is not in use. Transmitting and receiving data drains the battery.
• Defragment your hard drive regularly: The built-in defrag utility included with Windows  will take your file fragments and put them closer together on your hard drive, which will decrease hard drive access times and save battery life.
• Use Direct Power as much as possible : Keep your laptop connected to the direct power supply using the laptop power adapter as much as possible.
• Connect laptop to UPS supply : If possible then connect your laptop to UPS supply.This will save your laptop from power fluctuations and if there are frequent power cuts then your laptop battery life-cycle will not be wasted.
• Use battery only when on move : Try to power laptop through battery only when you are on move or if there is no power supply.

Windows 8

A road map timeline slide shown by Microsoft at the 2009 Professional Developers Conference shows that a product code named "Windows 8" is scheduled to be released sometime around 2012. Development and other aspects of Windows 8 have not been detailed in public, although job listings have mentioned improved functionality for file access in branch offices.

A recently-departed Microsoft employee's blog has revealed a rough version of Microsoft's roadmap for key software, including Windows 8. According to the information, Microsoft aims for Windows 8 support to start on July 1, 2011. Support for Windows Server 2012 starts on July 2, 2012.

A Microsoft KB article confirmed that Windows 8 is the next version of Windows. The article has now been changed to remove references to Windows 8.

A recently leaked document from Microsoft seems to indicate that Windows 8 might feature a faster startup, an App Store, integrated web applications, improved digital media support (including AVC HD and 3D video), faster resumes from low-powerPublish Post states, and USB 3.0 and Bluetooth 3.0 support. Windows 8 is likely to include facial recognition because of the increase of webcams that are integrated into computers.

iPhone 4

The iPhone 4 is a slate smartphone designed and developed by Apple. It is the fourth generation of iPhone, and successor to the iPhone 3GS. It is particularly marketed for video calling, and consumption of media such as books and periodicals, movies, music, and games; and for general web and e-mail access

iPhone 4 Technical Specifications

Size and weight¹

Height:

4.5 inches (115.2 mm)

Width:

2.31 inches (58.6 mm)

Depth:

0.37 inch (9.3 mm)

Weight:

4.8 ounces (137 grams)

Cellular and wireless

• UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz)
• GSM/EDGE (850, 900, 1800, 1900 MHz)
• 802.11b/g/n Wi-Fi (802.11n 2.4GHz only)
• Bluetooth 2.1 + EDR wireless technology

Location

• Assisted GPS
• Digital compass
• Wi-Fi
• Cellular

Power and battery²

• Built-in rechargeable lithium-ion battery
• Charging via USB to computer system or power adapter
• 
  

  Talk time:

  Up to 7 hours on 3G

  Up to 14 hours on 2G



• Standby time: Up to 300 hours


• 
  

  Internet use:

  Up to 6 hours on 3G

  Up to 10 hours on Wi-Fi


Video playback: Up to 10 hours

Audio playback: Up to 40 hours

Mac system requirements

• Mac computer with USB 2.0 port
• Mac OS X v10.5.8 or later
• iTunes 9.2 or later (free download fromwww.itunes.com/download) 
• iTunes Store account
• Internet access

Windows system requirements

• PC with USB 2.0 port
• Windows 7; Windows Vista; or Windows XP Home or Professional with Service Pack 3 or later
• iTunes 9.2 or later (free download fromwww.itunes.com/download) 
• iTunes Store account
• Internet access

Environmental requirements

• Operating temperature: 32° to 95° F
  (0° to 35° C)
• Nonoperating temperature: -4° to 113° F
  (-20° to 45° C)
• Relative humidity: 5% to 95% noncondensing
• Maximum operating altitude: 10,000 feet (3000 m)

  Capacity³

  • 16GB or 32GB flash drive

  Color

  • White or black

  Display

  • Retina display
  • 3.5-inch (diagonal) widescreen Multi-Touch display
  • 960-by-640-pixel resolution at 326 ppi
  • 800:1 contrast ratio (typical)
  • 500 cd/m2 max brightness (typical)
  • Fingerprint-resistant oleophobic coating on front and back
  • Support for display of multiple languages and characters simultaneously

    Audio playback

    • Frequency response: 20Hz to 20,000Hz
    • Audio formats supported: AAC (8 to 320 Kbps), Protected AAC (from iTunes Store), HE-AAC, MP3 (8 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, 4, Audible Enhanced Audio, AAX, and AAX+), Apple Lossless, AIFF, and WAV
    • User-configurable maximum volume limit

TV and video

• Video formats supported: H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format
• Support for 1024 by 768 pixels with Dock Connector to VGA Adapter; 576p and 480p with Apple Component AV Cable; 576i and 480i with Apple Composite AV Cable (cables sold separately)

Up is available on iTunes. Up © Disney/Pixar. All rights reserved.

Languages

• Language support for English (U.S.), English (UK), French (France), German, Traditional Chinese, Simplified Chinese, Dutch, Italian, Spanish, Portuguese (Brazil), Portuguese (Portugal), Danish, Swedish, Finnish, Norwegian, Korean, Japanese, Russian, Polish, Turkish, Ukrainian, Hungarian, Arabic, Thai, Czech, Greek, Hebrew, Indonesian, Malay, Romanian, Slovak, Croatian, Catalan, and Vietnamese
• Keyboard support for English (U.S.), English (UK), French (France), French (Canadian), French (Switzerland), German, Traditional Chinese (Handwriting, Pinyin, Zhuyin, Cangjie, Wubihua), Simplified Chinese (Handwriting, Pinyin, Wubihua), Dutch, Italian, Spanish, Portuguese (Brazil), Portuguese (Portugal), Danish, Swedish, Finnish, Norwegian, Korean, Japanese (Romaji), Japanese (Kana), Russian, Polish, Turkish, Ukrainian, Estonian, Hungarian, Icelandic, Lithuanian, Latvian, Flemish, Arabic, Thai, Czech, Greek, Hebrew, Indonesian, Malay, Romanian, Slovak, Croatian, Bulgarian, Serbian (Cyrillic/Latin), Catalan, and Vietnamese
• Dictionary support (enables predictive text and autocorrect) for English (U.S.), English (UK), French, German, Traditional Chinese, Simplified Chinese, Dutch, Italian, Spanish, Portuguese (Brazil), Portuguese (Portugal), Danish, Swedish, Finnish, Norwegian, Korean, Japanese (Romaji), Japanese (Kana), Russian, Polish, Turkish, Ukrainian, Hungarian, Lithuanian, Flemish, Arabic, Thai, Czech, Greek, Hebrew, Indonesian, Malaysian, Romanian, Slovak, Croatian, Catalan, and Vietnamese

Camera, photos, and video

• Video recording, HD (720p) up to 30 frames per second with audio
• 5-megapixel still camera
• VGA-quality photos and video at up to 30 frames per second with the front camera
• Tap to focus video or still images
• LED flash
• Photo and video geotagging

External buttons and controls

Sensors

• Three-axis gyro
• Accelerometer
• Proximity sensor
• Ambient light sensor

Connectors and input/output

Headphones

• Apple Earphones with Remote and Mic
• Frequency response: 20Hz to 20,000Hz
• Impedance: 32 ohms

Rating for Hearing Aids⁴

• 3G network - 850/1900MHz: M4, T4
• 2G network - 850MHz: M3, T3
• 2G network - 1900MHz: M2, T3

In the box

• iPhone 4
• Apple Earphones with Remote and Mic
• Dock Connector to USB Cable
• USB Power Adapter
• Documentation