POGO Pins details.

Hi, I have 3D printed a cradle for my motor bike but I need to know what each of the POGO pins are so I can make it charge properly. I believe the centre pin is 5V and the pin to the left is 0v which will allow it to charge but it is extremely slow charging. If I can find out and connect the Data - and Data + pins, the USB charger can respond to the tablet charging circuit to allow more current. Do you know what each of the POGO pins are?? Many thanks