Hey subiet,
Thanks for reaching out to our Community.
I am sorry to hear that you are having issues with your power cable. It is important to note that repairing the power cable on your own may cause electrical problems and is not recommended. I would suggest checking with a local store near you to see if they have any available power cables that are compatible with your Google Home Max. When purchasing a new cable, be sure to choose one with an AC power rating of 100–240V and 50 or 60 Hz. You can also check out this link to learn more about your device's specifications.
Let me know if you have any further questions or concerns.
Cheers,
Muddi
