If you feel the battery life is shorter to what was listed on the manual or the specifications:
Actual performance time may vary from the listed time due to the volume, songs played, surrounding temperature, and usage conditions. Please refer to the Help Guide of your product for the conditions which may affect the battery life
Check if the CHARGE indicator lights up when the speaker is charging.
NOTE: The location of the CHARGE indicator varies depending on the product. Please see the instruction manual included for details.
Example for SRS-XB22:
Example for SRS-XB12: