My circuit powers a motor which draws about 2A of current out of my 12V lead acid battery. 12V is too much. So I want to change the battery setup. I want the new battery setup to last as long as possible. If I continuously use the motor which setup will last the longest? 1) one 6V lithium-manganese photo battery @ 1.5 Ah or 2) four 1.5V C sized batteries each @ 8.35 Ah connected in series to make 6V If I use setup 2, will my motor have access to more current? I know that the motor can only draw current as fast as the chemical reaction takes place in the batteries. Will setup 2 make my motor go faster than setup 1?