GSW-T1500PK: How long does it take to charge battery? Takes up to 11 hours to fully charge. Product: GSW-T1500PK Related articles GSW-T1500PK: My battery doesn't seem to be charging, speaker only works when plugged in to wall. [AS-TOGO] HOW DO I KNOW HOW MUCH BATTERY CHARGE IS LEFT ON MY SPEAKER? SOSP-8: Is the battery replaceable? [GMU-G100] How long does the charge last for this model? GMU Series: How to charge?