Protection from short duration blackouts is available in four series of battery back up with valuable designs and features.
8CH 13.8V8a 120W Battery Backup UPS CCTV Power Supply Distribution Box - China CCTV Power Supply, UPS CCTV Power Supply
Eaton Commercial Battery Backup Power UPS
Installing Battery on APC AV Power Conditioners with Battery Back-Up
4CH 27.6V 2A 60W UPS Battery Backup CCTV Power Distribution Box - China CCTV Power Supply, UPS Power Supply
Eaton Commercial Battery Backup Power UPS
Tripp Lite SMART1500RM2U Smart Pro 1500VA UPS Battery Backup Rack/Tower
Uninterruptible power supply - Wikipedia
Eaton Commercial Battery Backup Power UPS
Micro 350 UPS for Outdoor Applications with Ethernet/SNMP Interface
Eaton Commercial Battery Backup Power UPS
UPS for your power needs
Tripp Lite 1500VA UPS Battery Backup Surge Protector, AVR, 10- Outlet Uninterruptible Power Supply, USB Charger, Ethernet Protection, 3-Year Warranty & 250,000 Insurance (ECO1500LCD) : Electronics
UPS Systems, UPS
12V-2A Mini UPS Battery Backup for WiFi, Router, Modem Universal Interface