How to Wire 6V Batteries to 12V

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Wiring 6-volt batteries to get 12 volts takes advantage of a connection known in electrical theory as a "series circuit." In general, there are two types of electrical circuits: series circuits and parallel circuits. The configuration for both types of circuits depends on the desired output. The series circuit will increase the voltage of two or more connected components, but will keep the same amount of current flowing through the circuit. The parallel circuit, however, will increase the amount of current flowing through the circuit, but will keep the same voltage.

Things You'll Need

  • 6-volt batteries
  • Electrical conductors
  • Voltmeter
  • Locate the positive and negative terminals on the batteries. Some batteries have a "+" mark to identify the positive terminal and a "-" mark to identify the negative terminal. Rotate the two 6-volt batteries so that the positive terminal of one battery is facing the negative terminal of the other battery.

  • Connect the two batteries in series by connecting the positive terminal on one battery to the negative terminal on the other battery. The connection can be made using an electrical conductor with a connector that fits the battery terminals. Different connectors are used for different batteries sizes and types.

  • Connect another electrical conductor to the negative terminal of the first battery. The other end of the conductor is then connected to serve a load to the appliance requiring voltage. Repeat this step with the positive terminal on the other battery.

  • Test the connection with a voltmeter. Connect the black lead of the voltmeter to the wire that is connected to the negative terminal on the first battery. Connect the red lead to the wire that is connected to the positive terminal of the second battery. The voltmeter should read 12 volts direct current (DC).

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References

  • Photo Credit John Foxx/Stockbyte/Getty Images
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