If you feel the battery life is shorter than the times listed on the manual or on the specification webpages, lower the volume of the speaker and check to see if the battery lasts longer. When you use the speaker at a loud volume (or a maximum volume), battery consumption may increase and the battery life becomes shorter than the times listed on manual or specification webpages.
Charge your wireless speaker and check if the CHARGE indicator lights up. Refer to the speaker manual for information about the location of the indicator.
Does the CHARGE indicator light up?