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 GSW-T1500 Speaker Battery Replacement Guide GPSS-650: Which version of Bluetooth is in the GPSS-650? GPSS-650: What type of audio sources can the GPSS-650 accept?