GPSS-650: Can I use speaker with battery removed? Yes, your GPSS-650 will work with the battery removed and the power switch flipped to the ON position. Product: GPSS-650 Related articles GMU Series: How to pair? GSW-T1500 Speaker Battery Replacement Guide [AS-TOGO] HOW DO I KNOW HOW MUCH BATTERY CHARGE IS LEFT ON MY SPEAKER? GPSS-650: Is there a recording output? GPSS-650: Which version of Bluetooth is in the GPSS-650?