I am planning to use battery li-ion 7s battery supply for a 24V 200W motor. It seems like I only able to use the 24V controller. However, the controller supply maximum voltage is only 24V. The battery maximum charge voltage will go up to 28.7V. I am not sure the controller can accept 28.7V input supply or not. Or whether I can use the 56V controller board for my 24V motor.