amazon.com has the AmazonBasics Line-Interactive UPS 1000VA 550 Watt, 9 Outlets for $84.99 with free shipping.

• 1000VA, 550 watt UPS mini tower battery backup for electronic devices; 6 foot power cord
• Provides continuous power in the event of an outage, fluctuation, or surge; prevents loss of working files, DVR recordings, unsaved games, and more