Usb Speaker with External Power supply? S ll I'm using a 2x3W yenkee usb speaker with my phone through an usb otg cable and it's working fine, but when I turn the volume up the speaker turns off.I assume it's because of the high power consumption, because if I plug it into my pc it works even when i turn it all the way up. I was wondering whether an external charger would solve the problem, that way I could plug the usb into the charger and the jack into my phone.I'm not sure though if it works. Do you think it's a viable solution?
Okay, so I tried to power it with pluging it into a common charger and I'm happy to say it worked and didn't cut out .Considering the external charger use the same method to give power it really should work. Although I haven't had the chance to try it yet but I'll definitely grab one so i could max out my speakers volume anywhere I am. 

Adam