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2011年2月16日星期三

Top 5 reasons why a tablet is a useful tool by www.bestlaptopbattery.co.uk

Motorola Xoom vs. Apple iPad
At first, I didn't see why I would need a tablet. But after observing quite a few PCWorld editors using them around the office, I relented and picked up an iPad last summer. Initially I had purchased the device to browse my massive library of digital comic books, but soon I found it useful for other, more-practical tasks. I started taking the iPad to meetings and using it to do quick Web searches, and it became my preferred way to read and respond to e-mail.
With the Motorola Xoom and other Honeycomb-powered tablets in the works, and with HP announcing its WebOS-based TouchPad, consumers will have a much bigger pool of devices to choose from. Although a tablet may not totally replace your PC anytime soon, using one has its benefits. Here are my top five.

Productivity

E-mailI don't expect anyone to type out a proposal using a tablet's virtual keyboard. However, a tablet in the workplace can be quite helpful for handling basic tasks, like checking e-mail or managing schedules. Here at work, I use a stand to hold my iPad up next to my monitor so that I can use it as a second screen. I leave the Mail app open, which lets me quickly see if I have new messages. For meetings you can jot down notes and download any relevant documents you may need to reference, into the tablet. That way, you won't have to shuffle through a pile of papers searching for a specific chart or diagram.

Entertainment

NetflixTablets are great for entertainment. Since a tablet is basically just a large screen, it's a stellar device for watching movies and TV shows. When you're trying to watch an epic movie like Inception, a 3.5-inch screen just doesn't cut it. With services such as Netflix and Hulu Plus, you don't even have to fill your tablet's internal memory with video files; instead, you can stream entire libraries of material directly to your device.

Portability

Next to ordinary computers, tablets by design are comparatively lightweight and relatively easy to carry around. Many of them may still be too heavy to hold in one hand, but they're great in your lap or on a surface. Reaching for a tablet to browse the Web during TV commercials is much easier than getting up, going to your desk, and booting up your computer. Even laptops, which are supposed to be mobile devices, can take a while to start, and they often get uncomfortably hot after a short period of use.

Battery Life

Battery life gaugeOne of the reasons I prefer carrying around a tablet as opposed to a laptop is the superior battery life you get from a tablet. My laptop can go for only about 2.5 hours before I have to plug it in, whereas I can get almost a full day's use out of a Samsung Galaxy Tab or an iPad. Even my HTC Droid Incredible smartphone needs to be plugged in at least twice a day, more if I've been browsing the Web with it. Having to carry a charger as well as a laptop (not to mention trying to find an available electrical socket) gets to be inconvenient.

Adaptability

Angry BirdsGames are not the only thing you can download into your tablet. One of the beautiful things about tablets is that most of them--the ones worth the money you've paid, at least--have some sort of marketplace where you can purchase additional apps to give your device a whole new level of functionality. Love to read the news and stay on top of current events? Download a few news apps. Love to tweet and spend all day on Facebook? Grab some social networking apps to stay in contact with friends.
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2011年2月14日星期一

Some general tips for Laptop Battery care

Take care of your dell laptop battery and ensure that it will be ready to work properly when you need it most. Some general tips for laptop care include: avoid extreme temperatures, don’t leave a laptop outside in cold weather or leave it in a hot car. Cold batteries can’t create very much power and hot batteries will discharge very quickly. Use electrical power when available to keep battery charged. Don’t let your laptop go for long periods of time without using the battery.
1. Smaller Is Better Consider an ultraportable or thin-and-light rather than a desktop replacement laptop. Smaller displays use less power. Going with a hard drive that runs at 4200rpm uses less power than a hard drive running at 5400rpm.
2. Power Control Use as little power as possible by adjusting laptop settings. Use the Power Options to set to the laptop to go inactive after a set amount of time. Set adjustments so that the display goes off first, then hard the hard drive stay active a bit longer and store the system content’s to the RAM.
3. Turn Down the Lights Adjust the display brightness to a lower setting, make sure you can view the screen without squinting. You can also adjust the brightness of the display to suit the conditions you are working in.
Dell inspiron 1525 Battery
dell inspiron 1525 laptop battery by http://www.bestlaptopbattery.co.uk/dell/inspiron-1525.htm
  • Brand :Dell

  • Type :Li-ion

  • Voltage :11.1V

  • Color :Black

  • Capacity :7800mAh

  • Condition :Brand new

  • Availability :In Stock

  • Today Price:£ 51.14


    • 4. Watch Your Battery Use Keep an eye on your battery consumption and know how much power you have remaining. Use the battery power icon on the system tray or you can purchase batteries which have LED gauges on the outside of the battery itself.
    5. Charging It Up Whenever you have access to a power source, charge the battery. Before you leave on any trips, fully charge the batteries, especially if you don’t know where or when you might have access to any electrical outlets.
    6. Get Another Battery Some laptops are capable of running with two dell kd476 battery. If you cannot run two batteries, check with the manufacturer to see if there are high capacity batteries available. External batteries can also be used to extend operating time.
    7. Drain the Battery The first time you use your laptop with battery power, allow the laptop battery to completely discharge. Do this at least twice and don’t try to charge the dell inspiron 6400 battery when it is half discharged.
    8. Clean Batteries Keep the battery and its connections clean and free of debris. Clean your battery terminals on a regular basis using a cotton swab with rubbing alcohol on the tip.

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    9. CMOS Battery Check-Up The backup battery is a CMOS battery which is a secondary battery to power the clock and can drain a main hp laptop battery if it is dead. Check with your User Manual or manufacturer’s web site for the location of the CMOS battery and where to get a replacement.
    10. Turning It Off Don’t run programs or devices that you aren’t using. Remove PC cards and turn off Wi-Fi software. Using your laptop to watch movies or play games will drain the battery quickly as well.
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    2011年1月17日星期一

    New battery technology from Argonne helps laptop-last longer

    battery technology from http://www.bestlaptopbattery.co.uk
    This month, thousands of new Chevy Volt owners will begin the real road tests of the first mass-produced plug-in hybrid electric car. While much of the car's engineering is unique, consumers may be unaware that some of its most extraordinary technology is inside the nearly 400-lb. battery that powers the vehicle in electric mode.
    The battery's chemistry is based in part on a revolutionary  breakthrough  pioneered by scientists at the U.S. Department of  Energy's Argonne  National Laboratory. The new development helps  the Volt's battery-a  lithium-ion design similar to those in your cell phone or laptop-last  longer, run more safely and perform better than batteries currently on the  market.
    "To me this cuts right to the heart of green energy," said Jeff Chamberlain,  who heads Argonne's battery research and development. "This battery  technology is a step towards energy independence for the U.S.; it helps create jobs; and it can have a positive impact on the environment."

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    The story begins in the late 1990s, when the DOE's Office of Basic Energy Sciences funded an intensive study oflithium-ion batteries.
    "Existing materials weren't good enough for a high-range vehicle," explained Michael Thackeray, an Argonne Distinguished Fellow who is one of the holders of the original patent. "The Argonne materials take a big step forward in extending the range for an electric vehicle."
    In order to improve the design, scientists had to know how batteries worked at the atomic level.
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