Question: what is the difference between 6 volt and 12 volt batteries?
Answer: Makeup and How They Work. A battery is full of cells with chemicals that transfer ions back and forth to create electricity. Each cell in a deep-cycle battery can produce about 2 volts. A 6V battery has 3 cells, making a total of 6 volts, and a 12V battery has 6 cells, making a total of 12 volts!