Battery (electricity)

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In electronics, a battery or voltaic cell is a combination of many electrochemical Galvanic cells of identical type to store chemical energy and to deliver higher voltage or higher current than with single cells.

The battery cells create a voltage difference between the terminals of each cell and hence to its combination in battery. When an external electrical circuit is connected to the battery, then the battery drives electrons through the circuit and electrical work is done. Since the invention of the first Voltaic pile in 1800 by Alessandro Volta, the battery has become a common power source for many household and industrial applications, and is now a multi-billion dollar industry.

For more information about Battery (electricity), read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

News tagged with battery life

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Efficient new wireless system can save 10 percent of bandwidth

Technology / Engineering

Dec 22, 2009 | 3.3 / 5 (3) | 0

Driven by fast-growing use of smart phones and Internet videos, wireless communication among Americans is expanding so rapidly that a tsunami of megabytes could soon threaten to overwhelm the bandwidth available.

Review: Netbooks meet luxury in ultra-light Sony

Electronics / Consumer & Gadgets

Dec 16, 2009 | 3 / 5 (3) | 0

(AP) -- Netbooks have been a hit among laptop buyers because they're cheap and they're easy to carry. Now there's the option to pay a lot more and get a lot less - a lot less weight, that is.

Gift Guide: Tech gadgets can boost your workouts

Electronics / Consumer & Gadgets

Dec 05, 2009 | 1.3 / 5 (3) | 0

(AP) -- In simpler times, maintaining good health was a matter of joining a gym or lacing up running shoes for a loop in the park. At most, you'd buy a watch with a digital display so you could time your laps.

Search results for battery life

Tips to keep iPhone battery going strong

Electronics / Consumer & Gadgets

Nov 26, 2009 | 3 / 5 (2) | 0

In talking with my iPhone-using friends, we often seem to bring up how to squeeze the most life from the iPhone's "nonreplaceable" battery.

Argonne advanced battery research driving to displace gasoline (w/ Video)

Technology / Energy

Dec 21, 2009 | 3.5 / 5 (6) | 3

(PhysOrg.com) -- In excess of seven million barrels of gasoline are consumed by vehicles in the United States every day. As scientists race to find environmentally sound solutions to fuel the world’s ever-growing ...

Electric cars rolling out

Technology / Energy

Dec 16, 2009 | 4.3 / 5 (16) | 7

(PhysOrg.com) -- Electric vehicles are far from new, but we are still a long way from electric cars being the norm. Now two new electric cars may bring that goal a step closer.

At Stanford, nanotubes + ink + paper = equal instant battery (w/ Video)

Nanotechnology / Nanomaterials

Dec 07, 2009 | 4.9 / 5 (27) | 3

(PhysOrg.com) -- Stanford scientists are harnessing nanotechnology to quickly produce ultra-lightweight, bendable batteries and supercapacitors in the form of everyday paper.

Panasonic Develops High Energy Lithium-ion Battery Module with High Reliability

Panasonic plans home-use storage cell

Technology / Energy

Dec 23, 2009 | 4.1 / 5 (15) | 8

Panasonic Corp., which recently made a successful takeover bid for Sanyo Electric Co., plans to market a lithium-ion storage cell for home use around fiscal 2011.

Gift Guide: Accessories to jazz up mobile phones

Electronics / Consumer & Gadgets

Nov 27, 2009 | not rated yet | 1

People you know have spent small fortunes on shiny new smart phones such as the iPhone 3GS, a BlackBerry or the Droid. But the devices still don't have all the features they want.

Researchers create cell phones for sign language

Technology / Hi Tech

Dec 02, 2009 | 4.6 / 5 (8) | 0

(PhysOrg.com) -- Cornell researchers and colleagues have created cell phones that allow deaf people to communicate in sign language, the same way hearing people use phones to talk.

Nokia Booklet has flashy looks, but little substance

Electronics / Consumer & Gadgets

Dec 10, 2009 | 1.5 / 5 (2) | 0

If the iPhone ushered in the era of cell phones that act like computers, then the recently released Nokia Booklet 3G netbook is an attempt to bring some of the features of a smart phone to a computer.

American drivers fond of their gas guzzlers will have to quickly learn to love greener cars

Green cars to get Copenhagen boost

Technology / Energy

Dec 03, 2009 | 3 / 5 (2) | 0

American drivers fond of their gas guzzlers will have to quickly learn to love greener cars, which are expected to get a big boost from upcoming international climate talks in Copenhagen.