ST. LOUIS (KMOX) – The cold weather may make it a little more difficult for us to get up and going, but what is it doing to our most relied on devices?

Not much, according to CBS Radio Engineer Mike Waldman.

He says cell phones and mp3 players that are powered by lithium cell batteries may take longer to work at top performance and the display could be darker than usual, but both will return to normal when they warm up.

However, if you are out in the cold for an extended period of time your cell phone battery may loose power faster. He suggests keeping your cell phone or mp3 player as warm as possible, either in a case or in your pocket.

Devices that should be watch carefully in the cold would be devices that are not completely sealed. Waldman explains that condensation could form on laptops and DVD players that are cold. Once that happens it could lead to internal shorting of some circuits.

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