The battery life of a Bose speaker depends on the model and usage conditions. Here is a list of some popular Bose speakers and their approximate battery life:
* Bose SoundLink Micro: 6 hours
* Bose SoundLink Mini II: 10 hours
* Bose SoundLink Revolve: 12 hours
* Bose SoundLink Revolve+: 16 hours
* Bose SoundLink Color II: 8 hours
Keep in mind that these estimates are based on moderate volume levels and may vary depending on how you use the speaker. Factors such as the volume level and the type of audio being played can affect the battery life. In addition, the battery life of a Bose speaker may decrease over time as the battery ages.