Top posts
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Four Renegades of Battery Failure
Declining Capacity Energy storage in a battery can conceptually be divided into three imaginary segments of the available energy,the empty zonethat can be refilled, and the unusable part(rock content). Figure 1 illustrates these three sections. Figure...
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Apple Macbook Pro (15in, early 2011) notebook
If you were considering a Macbook Pro recently but held off to see what the model refresh would bring, you might be disappointed. There aren't many innovative updates in the new Macbook Pro -- Thunderbolt is the only one worth writing home about, in our...
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Giant batteries steady grid in New York
Lithium ion batteries aren't just for your laptop anymore. A group of truck-size battery banks are delivering quick bursts of power to the electricity grid in upstate New York. AES Energy Storage, a subsidiary of power generation company AES, today said...
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Apple's CES absence doesn't blunt laptop presence
Even though Apple the company is a traditional no-show at the Consumer Electronics Show, its new MacBook Airs were there in force. And on the PC side of the ledger, plenty of attendees were packing Netbooks, too. After traversing the acres and acres of...
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The Best Cordless Drill Batteries
Turn of on screw image by Marek Kosmal from Fotolia.com Cordless drills Cordless drills use a rechargeable battery that is either nickel based or lithium ion. The best cordless drill battery for your drill is determined by several factors. The drill you...
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Global Battery Markets
The battery market is expanding, and the global revenue in 2009 was a whopping $47.5 billion.* With the growing demand for portable electronics and the desire to connect and work outside the confines of four walls, experts predict that this figure will...
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Safety Concerns with Li-ion
Safety is a sensitive issue that gets much media and legal attention, especially with Li-ion batteries. Any energy storage device carries a risk, and in the 1800s steam engines exploded and people got hurt. Carrying highly flammable gasoline in cars was...
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Tell you how to monitor a battery
One of the most urgent requirements for battery-powered devices is the development of a reliable and economical way to monitor battery state-of-function (SoF). This is a demanding task when considering that there is still no dependable method to read...
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Travel Smart with a Laptop Computer
It's not uncommon for business travelers to travel with a laptop computer in their luggage. While it may make conducting business on the road more convenient, there are some precautions to take prior to and while traveling with a portable computer. Replacement...
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Serial and Parallel Battery Configurations
Battery packs achieve the desired operating voltage by connecting several cells in series, with each cell adding to the total terminal voltage. Parallel connection attains higher capacity for increased current handling, as each cell adds to the total...
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Why Lithium Has Become Our Preferred Battery of Choice
Over the last decade or so, most of us have slowly found ourselves increasingly dependent on a single type of battery: a lithium battery. This has led to some interesting questions on why lithium has become the preferred choice, and what comes after lithium?...
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All about Chargers
The performance and longevity of rechargeable batteries are to a large extent governed by the quality of the charger. In a price-competitive world, battery chargers are often given low priority, especially as consumer products. Choosing a quality charger...
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Will Secondary Batteries replace Primaries?
Consumer market put aside, the largest users of primary (non-rechargeable) batteries are the military, specialty emergency services and forest fire fighters. High energy density, long storage and operational readiness are among their strong attributes....
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Lenovo T420 Laptop With Long Life Battery Up To 30hrs
Something that often become a problem when using the laptop is battery life. How long is the ability to survive your laptop battery? Maybe if you understand the correct use and care, usually at high 2 hours. Some laptops have a battery that can last up...
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Your Future Battery-Powered Life
Hop into the DeLorean, and take a look at your life in 2021. Are spacesuits fashionable and is teleporting feasible? We’re keeping that a secret. But one thing is for sure: your daily routine has drastically changed, for the better. It’s smarter, more...
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Notebook emphasis on mobility, laptop battery is one of the key
Why battery standby time more shorter than manufacturers claim All along, many consumers often complain that their laptop battery standby time is always shorter than the manufacturers claims. For this question, the laptop users must realize that. The...
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Where is Apple iOS 4.3 leading?
Apple's public, free release of iOS 4.3 yesterday adds and improves several features. You just plug your iDevice into your computer(apple computer battery), boot up iTunes and hit 'Update', and be patient - after the download and install, the iDevice...
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Tips For Reformat an HP Laptop
Many users will find the need to reformat their HP laptop at one time or another. Most reformat to restore their laptop to the original factory settings, and the most common reason to do that is to remove a virus. Another reason to format your HP laptop...
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Lithium Batteries Advantages & Disadvantages
Lithium batteries are disposable batteries that are used for a variety of small items such as toys, cameras, clocks, flashlights, and portable music systems. Some hybrid cars also use a form of lithium battery. Lithium batteries consist mainly of a non-aqueous...
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Effect of Zapping Nickel-cadmium
Remote control (RC) enthusiasts are experimenting with all imaginable methods to maximize battery performance. A racecar motor draws 30A for about four minutes delivered by a 7.2V battery. This amounts to over 200W of power, a large amount from a small...
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How to Choose the Right Marine Battery
It's important to choose the right marine battery regardless of the type of boat you have. A marine battery provides direct and backup power to a boat, and for overnight stays, having one that powers all the on-board accessories makes boating more pleasant....
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Scientists still trying to learn how the brain repairs itself
Compared to a sleek new laptop, that three-pound mass of fatty tissue called the brain may not look like much. But when it's injured, it adapts and rewires its circuits in new ways. That's the kind of flexibility that doctors and rehabilitation specialists...
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laptop and battery
The industry will be bombarded together with a number of personal computers these days and so making a choice about what sort of mobile computer to get can be quite a very puzzling knowledge and also frustrating knowledge. Many people tend to be conversant...
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Samsung Creates the ST30, the Ultra-Portable Camera for Great Shots Everywhere
Samsung innovation creates slim line and ultra-compact design to suit every occasion Samsung Electronics Co., Ltd, a global leader in digital media and digital convergence technologies, today announces the launch of the new ultra compact camera, the ST30....
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Comparing the Battery with other Power Sources
Energy storage Batteries store energy well and for a considerable length of time. Primary batteries (non-rechargeable) hold more energy than secondary (rechargeable), and the self-discharge is lower. Alkaline cells are good for 10 years with minimal losses....