BEST UPS for NAS that is compatible

[ed]

Here are few I found
APC BE600M1 - https://amzn.to/3FYb7VM
Cyberpower CP1500EPFCLCD https://amzn.to/3fQevr0

You can play with these calculators
https://www.cyberpowersystems.com/tools/runtimes/
https://www.apc.com/shop/uk/en/tools/ups...=PRICE_ASC

Some more info on UPS
https://nascompares.com/answer/ups-for-t...er-monday/
https://nascompares.com/answer/smart-ups...ff-and-on/
https://nascompares.com/answer/cheapest-...for-a-nas/
https://nascompares.com/2018/04/06/synol...shut-down/
https://nascompares.com/ups-battery-for-...s-3-hours/