A:AnswerHi Raffa,
Thank you for the question. There is no way to integrate a password. However, if its a device that has not been previously paired once, the speaker will not automatically pair without any physical access.
Hope that helps.
Mohsin - Bose Support
A:AnswerHi, there.
Thank you for your question. You are absolutely correct that the SoundLink Revolve uses a built-in, rechargeable lithium-ion battery. If you were to experience any difficulty with the battery, we would be happy to assist you with troubleshooting. If service is needed, this would be either a repair or replacement of the speaker itself.
Please don't hesitate to reach out to our support team at 1-800-367-4008 if you have any other questions. They are available M-F 9 AM to 9 PM Eastern. Thank you, and have a great day!
Jesse - Bose Support