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Originally Posted by Guest
It is called physical chemistry, where physics and chemistry over lap. What type battery are you talking about. A flashlight battery runs on a one way chemical reaction. When everything reacts the battery is dead. With a rechargeable battery it is a reversible chemical reaction. I could believe it takes 32 times more energy to make it than it can store and this energy you would never get back. You won't get any energy out until you charge it and put energy into it. You get out slightly less than you put in but you can do it over and over.
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"A battery must be manufactured and then it must be charged. As I said earlier...it takes 32 times more energy to MAKE a battery then you'll get out of it. It takes 32 barrels worth of energy to get out 1 barrel of energy from the battery."
Is the the rechargeable battery different. If it takes so much energy to make it why is practical?