Burned again, Kyocera recalls more phone batteries

2010-03-15 22:10:19

Kyocera started its "small-scale battery replacement program" in May after discovering a batch of about 40,000 batteries supplied by Hecmma Group of El Paso, Texas, contained counterfeits, said Kyocera Wireless spokesman John Chier. "After we issued the recall and terminated their contract, we found that they were continuing to supply the batteries to the gray market" of sometimes dubious wireless goods outlets, Chier said.

The recall now includes the KE/KX 400 series, 3200 series and its popular Slider series cell phones sold at Alltel, Cricket Communications, MetroPCS, US Cellular and Verizon Wireless stores nationwide; telemarketing retailers; and various Web sites.Inspiron 510m battery，Inspiron 600m battery.

The batteries on these phones are prone to overheating, say safety officials. More than a dozen phones with the batteries attached have overheated, causing two minor burn injuries, according to a spokesman for Kyocera Wireless.Latitude D500 battery，Latitude D505 battery，Latitude D510 battery.

 

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Fuel cell firm's neat solution for batteries

2010-03-15 17:00:00

On Monday, MTI MicroFuel Cells unveiled prototypes of its Mobion power packs, which promise to last longer in portable devices than conventional batteries and to be easier to manufacture than rival fuel cells.

Direct methanol fuel cells produce electricity by breaking down methanol. The methanol interacts with a catalytic membrane and produces electricity, carbon dioxide and water as byproducts. The technology is drawing attention from computing companies--especially makers of devices such as handheld computers, cell phones and laptops--to complement and possibly replace lithium ion Dell PC764，Dell Latitude D620 battery.

MTI Micro claims its technology differs from that of its rivals in that water is not pumped into the methanol tank. "We have 100 percent fuel in the reservoir," said Shimshon Gottesfeld, the company's chief technology officer. Some fuel cells take the water that emerges as a byproduct of the fuel cell reaction and remix it with the methanol.

The Mobion design leads to two potential design advantages. Firstly, the fuel cells do not need water pumps, leading to a reduction in the size and complexity of the pack. Secondly, the fuel cells have a higher energy density. The fuel reservoirs in many fuel cells contain less than 25 percent methanol. A greater concentration of methanol means devices can run longer.Dell Latitude D820 battery，Dell Latitude D830 battery.

The use of highly concentrated methanol does lead to other problems, though. The Federal Aviation Administration has ruled that flight passengers can't carry fuel cells that have a methanol concentration higher than 24 percent. Alan Soucy, the chief operating officer of MTI Micro, said the company is working on getting the regulations modified.

Several start-ups are working on fuel cells to power laptops, phones and handhelds. Fuel cells will initially complement batteries, but over time could begin to displace them because, potentially, fuel cells can power portable devices for two to ten times longer than conventional Dell Y9943，Dell Inspiron 630m battery.

Japanese manufacturers such as Sharp and NEC have been some of the strongest proponents of fuel cells. Although the first fuel cell-powered devices have been delayed, some are expected to hit the market next year.

MTI Micro plans to first target the industrial market, providing power cells for remote sensing devices such as RFID readers, and supplying the military. Later, it hopes to move into the consumer electronics market.

The company, based in Albany, N.Y., is working with DuPont, Flextronics and others to bring its cells to market. Dell Inspiron 640m battery，Dell Inspiron E1405 battery.

 

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