A:Answer Hi there! Thank you for your inquiry! Yes, it's generally safe to leave your SoundLink Revolve+ II plugged into its charging cradle for extended periods. The speaker has a built-in system that prevents overcharging by automatically stopping the charging process once the battery is full, and resuming it if the battery level drops slightly.
However, to maximize battery lifespan, it's best practice to disconnect the charging cradle from the power source once the speaker is fully charged, especially if you're not actively using it. Rest assured, plugging it in overnight will not overcharge the battery.
Jelyn - Bose Customer Support