Does anyone know what type of battery the JBL pulse 1 actually needs? Also any further instructions on where to acquire this type of battery for a possible repair assuming that’s the actual issue with this slightly expensive/uselessspeaker (is it the battery or charge port that’s malfunctioning? Or both? If speaker turns on while plugged in connects to a device, sounds like the speaker is blown unless I turn it way down, then shuts off completely all while the battery meter indicates a full charge. I enjoy fixing m own tech, any info on the matter would be greatly appreciated!!!!