Nokia says 46 million batteries may overheat

Nokia is offering to replace 46 million batteries manufactured by another company for use in its mobile phones because of a risk of overheating.

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Nokia is offering to replace 46 million batteries manufactured by another company for use in its mobile phones because of a risk of overheating.

The faulty batteries were manufactured by Japan's Matsushita Battery Industrial and sold in a wide range of Nokia phones, from its low-end 1100 family of products up to its pricier N91 and E60 devices.

Nokia said that in "very rare cases" a short circuit could cause the Nokia-branded BL-5C batteries to overheat while they are being recharged. It said it knows of about 100 incidents so far but that no serious injuries or property damage had been reported.

Anyone concerned about the problem can get their battery replaced for free, Nokia said. It set up a web page that lists the phone models and describes how customers can check if their battery is affected.

The Finnish phone maker has several suppliers for its BL-5C batteries, and about 300 million BL-5Cs have been produced altogether, the company said. The problem exists only with the 46 million Matsushita batteries manufactured between December 2005 and November 2006, Nokia said.

The company said it will work with Matsushita and the relevant authorities to investigate the problem.

Last week it was confirmed by the US Consumer Product Safety Commission (CPSC) that Toshiba has recalled more defective laptop batteries in what is just the latest move in a long-running problem with lithium-ion batteries made by Sony.

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