With this cable can I use GPS on my Nexus 7 screen on without the battery is empty. Even better, the Nexus 7 is charged even with the screen at maximum and the active GPS. With this cable and a good charger I can load up to 5 W (check with my PortaPow Multimeter Tester USB charger B00NTU18KY I also recommend). The cable allows to quickly load a loader type "Apple". The cable is soft and fine.