I have bought A2B hybreed built in controller in the hub without battery. Connected after market battery. Bike started working on PAS but the battery Gage shows empty. Speedo and PAS 123 setting works. Do some one knows is anything to with the batteries2 extra pins( 0ut of 6pins 2 pins connected to positive and 2 for Negative.). Can anyone help. This bike does not have throttle. Thanks