Hey Kevor,
My guess is that you can use a usb hub as long as it's powered (i.e. connected to electrical outlet). I know kind of defeats the purpose. I think that's probably why it only works on computer and ps3 usb port because they are providing enough power to charge the batt. If that is the case you can buy a multiple port usb hub and connect more than one charger to it.
My guess is that you can use a usb hub as long as it's powered (i.e. connected to electrical outlet). I know kind of defeats the purpose. I think that's probably why it only works on computer and ps3 usb port because they are providing enough power to charge the batt. If that is the case you can buy a multiple port usb hub and connect more than one charger to it.