I know dumb question but I have to ask, It is my understanding that 3 ea 12V 100ah batteries in parallel will not shock you because the voltage is only 12V and that is not enough voltage to push the electrons through your body. Is this correct. in other words the 12V voltage going into the inverter will not shock you but the 120V voltage coming out of the inverter will, Correct? Help me to understand this, please.