The world's largest computer manufacturer has recalled millions of laptop batteries over fears that they could catch fire.
Dell has issued what is believed to be the consumer electronics industry's largest product recall after more than 4m batteries were identified as potential hazards. The announcement followed a series of complaints about computers overheating or exploding.
The company said it was possible that the devices - which are made by an arm of the Japanese electronics giant Sony - could create safety problems. "In rare cases, a short circuit could cause the battery to overheat, causing a risk of smoke and fire," said a Dell spokesman. "It happens in rare cases but we opted to take this broad action immediately."
Although the majority of affected machines were sold in the United States, it is believed that about 1.7m were bought outside the US. Dell would not say how many British customers may be affected.
The 4m batteries were included in laptops sold between April 2004 and July this year, including the Latitude, Inspiron, XPS and Precision models. They were also sold separately to some other customers. The batteries to be recalled will carry the name "Dell" on them, as well as the words "Made in Japan", "Made in China" or "Battery cell made in Japan, assembled in China" on the back.
Concerned customers have been urged to stop using their computer's battery and to visit the company's website for more information or phone a free helpline on 00800 3033 4044.
Stories of exploding Dell computers have been circulating online for some time, with one high-profile case featuring a video clip showing how a laptop burst into flames during a conference in Japan. After the video was seen by millions of people on the internet, other tales of suspicious overheating began to emerge.
One owner from Singapore told an Australian newspaper how his computer had caught fire after making "popping noises".
"It wasn't quite an explosion, but white smoke began to pour out of the machine, completely filling up the room, and there were flames coming up the sides of the laptop," the man, who requested anonymity, told the Age.
It continued to smoulder after being doused with water and plunged into a sink. "I'm now so paranoid that will it happen again that I don't use my laptop on flights any more," he said. "Just imagine if that had happened on an aircraft."
Despite speculation that the Japanese video had prompted action, Dell officials said yesterday that they had already been investigating concerns before the video brought the issue into the public eye.
Issues have been raised before over battery problems with Dell products and there have been several smaller battery recalls. Last month Apple issued a voluntary recall of some batteries from its newest laptops, and in February last year Microsoft was forced to recall millions of power cables for its Xbox games console after complaints of overheating.
But although the same model batteries are also used in products from other manufacturers, a Sony spokeswoman said there were no concerns. "This is an issue specifically down to Dell's battery-charging system," she told the Guardian.
FAQ: What to do
Which laptops are affected?
The recall covers 4m Dell laptops sold between April 2004 and July 2006. If you have an Inspiron, Latitude, Precision or XPS model bought during this period, you should examine the battery to see if it needs replacing.
How do I remove the battery?
Switch off the laptop and turn it over to access the back. The battery is in one corner and can be easily removed by pulling on the tab.
How do I know if it has to be returned?
Batteries that are being recalled will have "Dell" on them. They will also say: "Made in Japan", "Made in China" or "Battery cell made in Japan, assembled in China". Note the serial number on the white label and then visit www.dellbatteryprogram.com to check whether you need to return it. Or call the helpline: 00800 3033 4044.
Do I send the whole laptop back?
No, all Dell requires is the battery.
Can I use my computer until then?
You are advised not to use a faulty battery but you could plug in a different one if it does not need to be returned. Otherwise, only use it by plugging it in and using the adaptor.