The Gaston AGM MF Backup Battery is a 12V sealed lead-acid battery with a 5Ah (ampere-hour) rating over a 20-hour discharge rate. This maintenance-free battery utilizes Absorbent Glass Mat (AGM) technology, making it spill-proof and resistant to vibration and shock. It is often used as a backup power source for various applications, including uninterruptible power supplies (UPS), security systems, and emergency lighting. The 20-hour rating indicates the capacity of the battery when discharged over a 20-hour period. The Gaston AGM MF Backup Battery offers a reliable and convenient solution for backup power needs, ensuring a steady source of electricity in case of power interruptions.