While there are many sophisticated electronic components in the typical desktop computer, one of the most important pieces of hardware is a simple battery. Desktop computers use a battery that is similar in shape to a watch battery, except that it is slightly larger. The purpose of this battery is to hold the settings for the computer, including the amount of memory installed in the system and the current time and date. Checking the condition of that battery, and knowing the signs of a battery failure, can help you head avoid potential problems. Writer Bio
