Battery backup copes with musical transients

On my street the power goes out around once a month. The average outage is only about half an hour, but knowing the power could go out at any time interferes with my concentration. So I installed a battery backup to supply power when the power goes out. It also supplies power every afternoon when the electricity rate is highest. But would the battery be able to keep up with musical transients? Batteries generate electricity from a chemical reaction which could be slow at the critical moment. There's nothing like having the power company's big honking generator at the other end of your power cord to supply the extra current needed when the music hits a peak. Happy to report the music sounds as good on battery as when it's getting power from the grid.

The battery powers the whole house including air conditioning even when temps hit triple digits. By chance, the power went out for three hours not long after the battery was installed. It was worth it just for that. Now I relax and enjoy the music knowing my listening session can never again be interrupted by an outage.