Reminder: Computers are dangerous. Lenovo issued a recall this week for over 500,000 possibly defective power cords that could overheat, spark, burn, or melt. Yeesh.

How do you know if your computer's power cord is affected? The U.S. Consumer Product Safety Commission has this description:

This recall involves Lenovo's LS-15 AC power cord manufactured from February 2011 to December 2011. The power cords were distributed with IdeaPad brand B-, G-, S-, U-, V- and Z-series laptop computers and Lenovo brand B-, G- and V-series laptop computers. The recalled power cords are black in color and have the "LS-15" molded mark on the AC adapter end. The manufacture date code in the format REV: 00 YYMM is on a label attached to the cord.

If your power cord is on the list, you can call Lenovo at 1-877-453-6686 or fill out an online form at Lenovo's website. You'll get a free replacement.

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The power cords have been responsible for 15 incidents of overheating, sparking, melting or burning so far, but they haven't caused any injuries yet. So get those power cords off to Lenovo before you become a statistic. [Consumer Product Safety Commission via PC Mag]

This article has been updated with the correct number to reach Lenovo. The phone number originally given by the CPSC was to a different service center.