Start by connecting two 6 volt batteries in series to make the equivalent of a 12 volt battery. HOW: Connect positive terminal on battery A1 to negative terminal on battery A2. Repeat this on batteries B1 and B2. RESULT: The outcome of connecting batteries in series is the that voltage output is added together (12 volts total).
Wiring batteries in series involves connecting the positive terminal of one battery to the negative terminal of the next battery, creating a chain-like connection. This results in the total voltage of the batteries being added together. For example, if you connect two 12-volt batteries in series, the total voltage output will be 24 volts.
In a series circuit, the total voltage is equal to the sum of the individual voltages of each component in the circuit. When wiring 6 volt batteries in series, the positive terminal of one battery is connected to the negative terminal of the next battery, creating a chain-like connection.
For example, these two 12-volt batteries are wired in series and now produce 24 volts, but they still have a total capacity of 35 AH. To connect batteries in a series, use a jumper wire to connect the first battery's negative terminal to the second battery's positive terminal.
Make a series of more than two batteries by connecting the terminals. Take jumper cables and clamp around the positive terminal of one battery and the negative of the battery next to it. Repeat the connection process until all of the batteries you want to connect in a series are connected by jumper cables.
For example, if two 6 volt batteries are wired in series, the total voltage of the circuit would be 12 volts. Similarly, if three 6 volt batteries are wired in series, the total voltage of the circuit would be 18 volts. Here is an example of a series wiring diagram for three 6 volt batteries: