Battery Backed Power Supply 115/230VAC to 24VDC (5amp) - AMI Marine
Amazon.com: RGTTOTG Mini UPS Uninterrupted Power Supply 8000mAh 28Wh Lithium ion Backup Battery with DC 24V 15V 12V/9V/5V Output for Wireless Router, Modem, LED Light, CCTV Camera, Smartphone More Support Solar :