I have a motor which i am planning on using in an electric vehicle i am designing. http://www.azuredynamics.com/products/force-drive/documents/AC24_DMOC445ProductSheet.pdf and want calculate the number and specs of batteries needed to run it. I have the power demand from the motor at any given time and therefore i can use P=I.V to calculate the current needed at any given time and then use that in Q = I.t to calculate the battery life in Amp.Hrs. From that i guess i can calulate how many batteries i need. I will probably use Lithium Ion Phosphate batteries. I assume looking at the spec sheet that the voltage i use is 156 v dc, is this correct?