MikroTik mUPS Gigabit PoE Injector with Battery Backup — WE LOVE TEC
Amazon.com: LINOVISION DC12V POE Injector with DC 12 Volt to POE 24V/48V Voltage Booster, POE for Solar/Vehicle, or act as UPS POE Switch Supports AC110V Input and Backup Battery, Stopless POE Power
5V 9V 12V Uninterruptible Power Supply Mini UPS POE 10400MAh Battery Backup for WiFi Router CCTV(US Plug) - Walmart.com
PoE World Failover Dual DC Power Input Backup Power Uninterrupted for POE Switch PoE Injector Max Volt 60V Max current 8A
The Mikrotik mUPS is a PoE injector with battery backup capability with a 12 V battery connector. :: Power Supplies / PoE :: ICD Group, Inc
Amazon.com: LINOVISION DC12V POE Injector with DC 12 Volt to POE 24V/48V Voltage Booster, POE for Solar/Vehicle, or act as UPS POE Switch Supports AC110V Input and Backup Battery, Stopless POE Power