mg1 outputs at 12000 rpm 600v ac

how to connect a 400v network instead of mg1 for charging a battery that is connected directly

the motor turns mg1 through a 1:3,4 reduction gear to get the voltage and power to operate mg2,

I also collect a motorcycle based on the MG1, the questions are the same,

I want to put MG2 on a mechanical box, only the motor, how to use the MG1 input to charge the battery, on the version 2 board, half of the parts can not be soldered? how do I set up recuperation?

what fee should I collect for version 2 or 3?

tell me, is the recuperation working ? how to charge the battery ?, I want to use only the traction motor separately, what can not be soldered into the board?