Battery backup

Hardware device used to supply power to computers and peripherals for a short time if the power happens to be low or removed. The battery backup allows the computer to shutdown safely or continue to run if the power is off shortly. In the picture to the right, is an example of a battery backup from APC

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Businesses often use large battery backups to safely shutdown servers if power goes out or keep the servers powered if the power is out for a few seconds. These types of backups are essential if your server is running critical software such as a customer database.