Sony VAIO VGN-TX670P Ultraportable Laptop

Posted by: Top Gear  :  Category: Laptop

With the variety of options for connectivity and the long battery life, the Sony VAIO VGN-TX670P provides mobile professionals with an ultraportable means of working from any location. The VAIO VGN-TX670P also provides a variety of ports that will make working with just about any peripheral a breeze. If you rely on long battery life and demand options for connectivity, adjusting to the small keyboard shouldn’t be a difficult trade-off.

Pros
Long battery life. SONY VAIO VGN-TX670P/B Laptop Battery
Combination of integrated connectivity options.
Very light weight.
Cons
Keyboard may be uncomfortable to use for those with larger hands.
Price.
Description
Processor: Pentium M 1.2GHz, Ultra Low Voltage 753. RAM: 512MB PC 3200 400MHz DDR2 Max. RAM 1.5GB.
Weight: 2.76 pounds with standard battery.
OS: Microsoft Windows XP Pro with SP2.
Wi-Fi: Integrated WAN for Cingular EDGE Network and integrated LAN – Intel® PRO/ Wireless 2200BG.
Integrated Bluetooth.
Display: 11.1″ WXGA with XBRITE™ technology.
HDD: 60GB 4200rpm Ultra ATA.
Optical Drive: DVD+R Double Layer/DVD±RW
Integrated V.90 modem and 10/100 TX Ethernet.
Battery Life: 4 hours average with up to 7.5 hours possible.
Guide Review – Sony VAIO VGN-TX670P Ultraportable Laptop

While many of the reviews I read concerning the VAIO VGN-TX670P criticize the small keyboard and price, I believe that for what this ultraportable laptop offers by way of connectivity options, available ports and overall design, it’s well worth the price. Regarding the keyboard – if it truly bothers you, then consider an external mouse/keyboard combination or just learn to adapt and not rely on doing long periods of data input at one time.

The casing is constructed of carbon fibre and carbon composite materials, making it a very durable and lightweight laptop.

The VAIO VGN-TX670P has been designed for mobile professionals who travel frequently and need a laptop which is easy to carry for long distances and still be functional during flights. You can watch a DVD comfortably and of course the long battery life is a great feature and important for mobile professionals.

File storage should not be a problem and even if you do begin to get close on full capacity, you can easily connect to an external hard drive using either of the two USB 2.0 ports or the FireWire. Another option of course is to burn the data to a CD for safe keeping.

This ultraportable laptop is well suited for mobile professionals who work in the legal, insurance and sales industries. You can easily carry this laptop and other required accessories without worrying about causing back ache or wondering where you will have the space to work on your laptop. This is a sturdy and efficient laptop for mobile workers.

For Education – Laptop Is Better

Posted by: Top Gear  :  Category: Laptop

The news that the One Laptop Per Child (OLPC) project is close to launching a $75 tablet for children is pretty remarkable. Non-profit founder Nicholas Negroponte said this week that OLPC hopes to have a working prototype of its XO-3 tablet computer by December 2010, and that it plans to debut the device at the January 2011 Consumer Electronics Show.

The sub-$100 price tag will be prove even more astounding if the XO-3 fulfills its creators’ goals of melding the iPad, Kindle, and laptop into a durable, kid-friendly package.

But is this a realistic goal for such a low-cost device? Given the history of OLPC’s much-ballyhooed $100 laptop, which never quite hit its aggressive price point and now costs nearly twice as much (you can donate one for $199 to a child in a developing nation), I have my doubts. And don’t forget about the abandoned XO-2 touchscreen device, a project cancelled last year when OLPC realized the unit would cost too much to make, Forbes reports.

So what do we know about the XO-3? It’s expected to be a 9-inch touchscreen tablet powered by a 1GHz processor, although the specs could change between now and CES. Made mostly (but not entirely) of plastic, it may also feature a reflective (non-backlit) display, such as those found on the Kindle and similar e-readers. A reflective screen, which uses less energy and is easier to read in direct sunlight, would benefit kids who do a lot of schoolwork outdoors. A backlit display, however, is easier to read indoors, particularly in rooms with little ambient light.

TOSHIBA PA3451U-1BRS Laptop Battery, Dell INSPIRON 6000 Laptop Battery, Sony VGP-BPS2C Laptop Battery

Laptops, Not Tablets

Even if OLPC delivers the XO-3 as promised, is a tablet computer really the best choice for school children? As the iPad has shown us, the tablet is a device for content consumption, not creation. It’s a very good e-reader, video viewer, and Web browser, but it’s far from ideal for writing lengthy documents like school reports.

By comparison, a conventional laptop has a physical keyboard, and its conventional clamshell design is better suited to a desk-oriented classroom setting. True, the laptop may not be particularly sexy or in fashion this season, but it’ll likely offer a better educational payoff.

A tablet may be a better form factor for electronic textbooks, but the XO-3’s barebones design–again, tailored for the needs of developing nations–may make the device an underpowered, ergonomically poor choice for e-textbooks (provided they’re available).

What do you think? Laptops or tablets for the classroom?

Cheap Laptop Batteries: Good Deal or Risky?

Posted by: Top Gear  :  Category: Laptop

You can save up to 50% with an aftermarket battery for your notebook — if you dare.

It was five years coming, but the battery of my ThinkPad R50 finally met its maker. On a recent trip, it conked out after powering the notebook for only half an hour — three hours short of what I’m used to getting out it. Now it refuses to be recharged at all. Clearly, it’s time for a new battery.

It’s a fact of life that sooner or later, every laptop battery hits old age. Most do well for between 18 and 36 months, depending on how heavily they’re used. Then they slip into a slow decline and lose the ability to take a full charge.

The reason? A typical battery pack can be recharged between 300 and 500 times before the chemicals inside start to wear out, with the result that a battery that once powered a system for three hours can now run for only an hour or less. That’s when it’s time to replace the battery.

There are two basic types of notebook batteries: the brand-name batteries that the manufacturer sells and the aftermarket batteries that are available from third-party resellers — often for a significantly lower price. The trade in aftermarket batteries is growing quickly, perhaps by as much as 30% a year, according to Don Saxman, an analyst at BCC Research in Wellesley, Mass.

“This is the result of the enormous popularity of notebooks,” Saxman explains. “Lots of people buy a second battery, and the longer you keep a notebook, the greater the chance that it will need a new battery.”

We all want to save money, but not if it puts our notebooks at risk. Buying an aftermarket battery often goes against the advice of laptop manufacturers, and in some cases can even void the warranty. Is it worth it to save a few bucks?

I went on a mission to find out whether aftermarket replacement batteries are a good deal, safe and reliable or a dangerous fraud.

Bargain Hunting

With the Lenovo replacement battery for my ThinkPad R50 selling for $160 — about half what the notebook itself is worth — there was certainly room to save some money. I also went looking for a new battery for my two-year-old MacBook Pro. Both machines have worn-out batteries that power the systems for half the time or less than they could when they were new.

With the battery part numbers in hand, I did a little nosing around on the Web. I found several places that sell batteries for a wide variety of notebooks made in the past 15 years, from ones introduced earlier this year to relics like the 12-year-old Texas Instruments Extensa 600. Many of the companies also sell AC adapters and batteries for mobile phones, digital cameras and handheld devices.

IBM ThinkPad R50 Series Laptop Battery

It turns out that lots of places carry replacement batteries for the ThinkPad R50; the same battery works with ThinkPad T40 series notebooks. Only a handful of online stores had a power pack for the MacBook Pro.

IBM ThinkPad T40 Series Laptop Battery

I was able to find both the batteries I needed at UK Top Laptop Battery Shop, based in 92, Clydesdale Place Moss Side Employment Area Leyland Lancashire PR26 7QS United Kingdom, Ohio. But before contacting them, I did a little research. I Googled exceldigital.org.uk to see if anybody had reported faulty products or bad experiences, or if there were pending legal actions against them.

It appeared to be reputable businesses that have been around for several years. The products they sell include a one-year warranty and a 30-day money-back guarantee.

It retailers can quickly ship out a battery in an emergency. For instance, exceldigital.org.uk has its warehouse in 92, Clydesdale Place Moss Side Employment Area Leyland Lancashire PR26 7QS United Kingdom for next-day delivery.

How They Performed

Over the course of a month, I ordered six batteries for my two notebooks and tested them out. Two came from Laptops for Less, two came from Laptop Battery Express, and one battery each came from Apple Inc. and Lenovo Group Ltd. With one exception — a dead battery from Lenovo, which the company quickly replaced — each of the new batteries worked perfectly and powered up the notebooks completely.

Without a doubt, aftermarket batteries are a good way to replace a dead battery without spending a lot of money. Despite costing $20 to $70 less, the aftermarket replacements proved to be just as good and reliable as the originals in my tests.

All of the aftermarket batteries I looked at fit fine. They just snapped in, and the systems powered right up. And the aftermarket replacements powered the notebooks for about the same amount of time per charge as the reseller replacements did.

Other than some minor cosmetic differences — for instance, the plastic on one R50 replacement was a slightly different shade of black and not as shiny as the original — I couldn’t tell them apart from the manufacturers’ batteries.

“It’s hard to tell them apart,” says BCC Research’s Saxman. “Often, notebook makers buy batteries made by a third-party manufacturer, while aftermarket battery packs frequently come from the same factory that made the originals. It’s confusing, to say the least.”

Frequently, the only things that separate the two types of batteries are whose name is on the label and how much it costs. In fact, the MacBook Pro battery that Laptop Battery Express sent me was actually an Apple-branded battery with all the markings, including a serial number.

The company’s supplier said it was left over from a production run made for Apple. Whether this violates agreements between the factory and Apple is for their lawyers to fight about. All I know is that I got a battery for $30 less that appeared to be identical and gave me no problems.

Sometimes aftermarket batteries are even better than the originals. Due to added efficiencies that manufacturing plants have developed in the time since the notebook and its first battery pack were made, some replacement cells can be lighter or contain more capacity.

Two of the six batteries I looked at stand out. The MacBook Pro battery from exceldigital.org.uk weighs 2.3 oz. less than Apple’s battery but delivers about the same capacity; it ran for only five minutes less than the reseller replacement. Then there’s the R50 replacement battery sold by exceldigital.org.uk, which has a higher capacity but weighs 0.2 oz. less; it ran for an extra 10 minutes.

Each was significantly less expensive than the manufacturers’ batteries, which sounds like a win-win to me.

Are They Safe? And What About My Warranty?

The aftermarket battery trade is a fact of life and will likely grow in the coming years, but that doesn’t mean the notebook makers have to like it. I asked several leading laptop manufacturers if they believe aftermarket batteries are dangerous to use and if using them invalidates the notebooks’ warranties. While Apple, Hewlett-Packard and Dell did not respond to my repeated queries, Lenovo and Toshiba agreed to discuss the issue.

Neither manufacturer said that aftermarket batteries are dangerous, but they stressed that their batteries were designed and manufactured expressly for their equipment. A Lenovo representative said, “We do not support the use of nongenuine Lenovo batteries in ThinkPads. ThinkPad batteries are designed and tested with ThinkPad notebooks to ensure safety, compatibility and performance.”

While using an aftermarket battery doesn’t invalidate a notebook’s warranty in and of itself, the manufacturers probably wouldn’t repair a notebook under warranty that has been damaged by a faulty aftermarket battery, according to company representatives. In other words, a faulty aftermarket battery does invalidate the warranty.

As a Toshiba Corp. marketing executive said to me, “Toshiba does not guarantee the system’s performance, reliability or safety as they relate to aftermarket batteries.”

This is ironic, since notebook makers like Apple, Dell, Sony, Lenovo, Toshiba and others have an uneven record when it comes to the batteries they sell themselves. Together, they have recalled millions of bad batteries over the past few years. Some of the power packs weren’t up to spec, while others were potential fire hazards. So it seems that no battery, regardless of who makes or sells it, is immune to problems.

“Most replacement batteries are perfectly safe,” observes Vishal Sapru, manager of power systems at market analysis firm Frost & Sullivan. “But you really need to be wary.” His advice is to seek out a reputable dealer with a history of supplying high-quality products that provides a year’s warranty on the battery and an initial money-back guarantee.

The reward is that you’ll pay between 15% to 50% less than the manufacturer product for substantially the same battery. “In some cases, it really is the same battery,” says Sapru. But he warns against batteries listed for less than 50% of the reseller price: “Below that, there’s potentially something wrong with the battery and the seller.”

Excellent advice is to steer clear of used batteries or those listed on eBay. I wish I had heard this advice five years ago when I bought a battery for my Gateway notebook on eBay for $20, compared with Gateway Inc.’s $150 product. It was listed as a new battery in the original packaging, but it held only a 20% charge, making it worthless to me.

“In other words,” explains ExcelDigital’s Sky, “shop carefully and be comfortable with your battery purchase. If it seems too good to be true, it probably is.”

Scientists claim tenfold increase in laptop battery life

Posted by: Top Gear  :  Category: Laptop

Laptop and mobile phone batteries could see a tenfold boost in performance if a technology breakthrough from scientists in the US comes to fruition.

According to researchers at the Massachusetts Institute of Technology, replacing conventional battery electrodes with those coated with carbon nanotubes can drastically increase the power to weight ratio compared to conventional lithium-ion batteries.

The scientists say they produced the powerful new electrodes by alternatively dipping a base material in solutions containing carbon nanotubes with positive and negative charges to make a stable film coating.

The result is an electrode that is more porous and contains more oxygen groups, which can store a larger number of lithium ions.

According to the scientists, the energy output for a given weight of this new electrode material was five times greater than for conventional capacitors, and the total power delivery rate was 10 times that of lithium-ion batteries.

ACER TRAVELMATE C100 SERIES Laptop Battery

In addition to their high power output, the researchers claim the carbon nanotube electrodes were highly stable showing no change in performance over 1,000 charge cycles.

Although carbon nanotube production is currently limited to niche suppliers, several companies are gearing up for mass production of the material.

133 Watt External Laptop Battery Charger Runtime Up to 10Hrs

What is the run time of Exceldigital(UK)’s Laptop Battery?

Laptop Battery have two main ratings on them: Volts and Amperes. Because size and weight of Laptop Battery is limited when compared to larger batteries such as car batteries, most companies show their ratings with Volts and Mill amperes. One thousand Mill amperes equals 1 Ampere. When buying a battery, select batteries with the most Mill amperes (or Ah). Batteries are also rated by Watt-Hours, perhaps the simplest rating of all. This is found by multiplying the Volts and the Amperes together. For example:

14.4 Volts, 4000mAh (Note: 4000mAh is equal to 4.0 Amperes).

14.4 x 4.0 = 57.60 Watt-Hours

Watt-Hours signifies the energy needed to power one watt for one hour. This Laptop Battery can power 57.60 watts for one hour. If your laptop runs at 20.50 watts, as an example, this Laptop Battery could power your laptop for 2.8 hours.

Top 10 Laptop Battery Basics

Posted by: Top Gear  :  Category: Laptop

Take care of your 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.

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. 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 batteries. 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 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.

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 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.