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Batteries
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Batteries are an excellent emergency power source, but require some basic information to use properly. They are electrochemical devices. They have plates, usually metallic, and either a solution or a moist compound between the plates. A chemical reaction takes place in the battery when it is discharged that produces a flow of electrons out one plate on the negative side and into another plate on the positive side.
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Batteries for laptops have a unique challenge they must be small and lightweight. In fact, the laptop battery should be invisible to the user and deliver enough power to endure a five-hour flight from Toronto to Vancouver.In reality, a typical laptop battery provides only about 90 minutes of service. Many users complain of much shorter runtimes.
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Batteries use a chemical reaction to do work on charge and produce a voltage between their output terminals. The basic element is called an electrochemical cell and makes use of an oxidation/reduction reaction. An electrochemical cell which produces an external current is called a voltaic cell. Voltages generated by such cells have historically been referred to as emf (electromotive force).
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Batteries contain heavy metals such as mercury, lead, cadmium, and nickel, which can contaminate the environment when batteries are improperly disposed of. When incinerated, certain metals might be released into the air or can concentrate in the ash produced by the combustion process.
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Beginning in March, 2007, Sears Auto Centers will be the exclusive distribution channel for DieHard Platinum batteries. "By working with EnerSys on the new DieHard Platinum battery, we continue the legacy of innovation that was established with the original DieHard battery 40 years ago," said Rick Sawyer, vice president/general merchandise manager of Sears Auto Centers. "We're confident this new battery will live up to the DieHard brand name and that users will be pleased with its performance. These premium-grade batteries are designed for a longer life than traditional batteries, offer increased levels of safe operation, can withstand extreme heat and cold, and are durable for consumer automotive/marine applications. The DieHard Platinum battery will offer proven vibration resistance to the consumer market.
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"This is really a supply problem," Mr. Gassenheimer commented to Fox, adding that the few U.S. companies currently involved in manufacturing Lithium-ion automotive batteries, rather than competing directly against each other, are collectively building a new industry. He says that Japanese automaker Toyota now accounts for 90 percent of the battery market for electrical transportation and that U.S. industry must rapidly catch up or risk ceding a major share of the new car market to foreign carmakers.
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