Pepwave Max BR1 Pro 5G Cat 20 Modem + PrimeCare + 12V Power Bundle – TechnoRV
Amazon.com: UPS Battery Backup 15000mAh, Home DC 12V/2A Router UPS, Battery Backup for LED Light Strip, CCTV Camera, Router and More, UPS Battery Backup & Surge Protector with Charger and Multiple DC
DC Mini UPS 5V/9V/12V/15/24 6 outputs WiFi Router/Smartphone/CCTV/IP Telephone | eBay
Running a DSL Router From a 12v Battery (Anti-Loadshedding DSL) : 4 Steps (with Pictures) - Instructables