Battery technology gets recharged

People really don’t appreciate how useful batteries are until the power goes out and they are left clicking on their dead flashlights in the dark. This winter during the Washington, D.C., area’s Snowmageddon event, I was thankful that I upgraded all my flashlights to the crank-for-power kind, and bought some oil lamps as additional backup (which can also be used to warm your hands if needed.) Thankfully, my neighborhood was spared a lot of the trouble and the power was only off for a few hours.

A recent summer storm where the lights flickered got me thinking about batteries again. I was thinking that battery technology hasn’t really changed that much over the past several years. Those 9-volt batteries you grew up with, along with the C- and D-cells are still around, though AA and even AAAs are the norm now. And for electronics like your laptop, I haven’t seen much change since moving to Lithium-ion technology.

It turns out I was wrong: Battery technology is actually evolving. According to Christopher Hurley, an engineer with Army Power division of the U.S. Army Communications-Electronics Research, Development and Engineering Center, lots of advancements are being made every day.

Lithium Carbon MonoFluoride might sound like something the dentist gives you, but is actually a battery technology that is light and powerful and is used in a lot of medical devices right now. Hurley says the Army is considering moving them over for military applications, since all that fancy gear a modern soldier carries has to be powered by something.

Even more impressive is the development of Lithium Air technology. In those, the battery’s lithium anode is electrochemically coupled to atmospheric oxygen through an air cathode. Because atmospheric oxygen is unlimited (on Earth, anyway) the capacity of the battery is only limited by the lithium anode. If that technology can be perfected, batteries could be reduced to a quarter of their current size or even smaller, at the same time improving their charge capacity tenfold or more from today. The applications are endless, from tiny electronics that seem to run forever to electric cars that are safer and lighter than anything on the road today, and which only need occasional recharges.

Apparently I’m not the only one who didn’t know that some of these technologies are already here. An Army memo states that lighter, better batteries than those out in the field are available and sitting in U.S. inventory right now. Commanders aren’t requisitioning them simply because they don’t know they can.

So don’t discount the humble battery. Big changes could be on the horizon for our hard-working electrical heroes, and much new discovery seems to be taking place every day. And you don’t even have to wait for the lights to go out to consider them.

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Tech Test Drive: mobile phones with long battery life

Battery life is one of the most important factors to consider when buying a cell phone. No matter how flashy a handset may be and how many cool features it may offer, it won't be worth much if the battery runs out too quickly. Fortunately, CNET performs talk time battery life tests on every handset that we review. Though manufacturers provide promises on battery life, real-world testing is a much better guideline. Here is a selection of recent cell phones that lasted more than seven hours in CNET's talk time tests.

HTC Legend

The good: The HTC Legend boasts a beautiful design with an AMOLED touch screen. The Android 2.1 smartphone adds a faster processor, more RAM and a camera flash. HTC Sense
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* Mobile technology: news and reviews.

features new and useful enhancements.

The bad: The Legend isn't compatible with North American 3G bands. Camera quality is mixed.

The bottom line: With its design improvements and feature enhancements, the HTC Legend is a worthy upgrade from the Hero and one of the most solid and well-built Android phones we've seen in its class. We can only hope that a North American version is released soon.

Motorola Droid X (Verizon Wireless)

The good: The Motorola Droid X boasts a gorgeous 4.3-inch touch screen and great multimedia features like an 8-megapixel camera with HD video capture, HDMI output and DLNA support. The smartphone can also be used as a mobile hot spot.

The bad: Camera is a bit sluggish.
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Motoblur software is a lot better but still not quite as refined as HTC Sense. Lacks a front-facing camera.

The bottom line: The Motorola Droid X makes another fine addition to Verizon's Android family, bringing with it a rich multimedia experience and more connectivity features.

LG Fathom (Verizon Wireless)

The good: The LG Fathom is solidly constructed with a bright display and a roomy QWERTY keyboard. It comes with Windows Mobile 6.5.3, and has Wi-Fi, Bluetooth and GPS. It supports CDMA and GSM networks for use worldwide.

The bad: The LG Fathom's resistive touch-screen display is not as intuitive as we would like. We also noticed slight sluggishness with its accelerometer and image refresh rate. The LG Fathom's bulky exterior might not be for everyone.

The bottom line: The LG Fathom is a well-built Windows Mobile phone with plenty of features, but its occasional lapse in performance can be annoying.

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Useful Laptop Batteries Information

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DURACELL or Energizer batteries? why?

I found this site the most helpful for you: laptop batteryI usually use Duracell because it is cheap and it lasts a long time

When it comes to batteries, I need laptop batteries which won't fail me, especially during times of electrical outage emergencies. I went through quite a few before discovering which Acer laptop battery were better.

I've discovered that a good supply of alkaline Toshiba laptop battery batteries will serve me much better than my rechargeable Compaq laptop battery batteries. For some reason, rechargeable batteries seem to drain faster, aside from the fact that they don't serve much usage after being drained as, logically, there's no electricity to recharge them again. So I tend to trust storing up on Dell laptop battery alkaline batteries instead.

Now if I really wanted super notebook battery, I'm certain there are some on the market which would definitely qualify with higher standards of performance, but at a rather hefty price. Such as the newly developed "plastic batteries" which apparently are one hundred times more powerful than the Alkaline make, but such a product is not yet available within the market industry. So for now, alkaline batteries will have to suffice.

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