Daily Facts
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Personal Computer Batteries

May 18th Fact-of-the-Day

All AC-powered personal computers have an internal battery that keeps the real-time clock running and that maintains various computer configuration settings in memory during times when a computer is powered-down. The battery is usually a small, non-rechargeable lithium cell, although other types of batteries are used in some computers. Battery-life depends primarily on the percentage of time a computer is switched off, because the battery is not used while a computer is running. The life may be five to seven years in a computer that is left running 24/7, but can be as short as one to two years in a computer that is never used. A dead battery can make a computer boot very slowly, can make it run much slower than normal after booting, can cause various plug-and-play peripheral devices to not be recognized, and may cause a variety other problems. ©2005 Martek International All rights reserved.


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