How to Hook Up Batteries in a Series
- 1). Cut a piece of copper wire around 6 inches long, and using wire strippers remove 1/2 an inch of insulation from each end.
- 2). Connect one end of the copper wire to the negative terminal of the first battery, and the other end to the positive terminal of the second battery.
- 3). Measure the voltage across the two batteries by connecting the positive lead of the multimeter to the positive terminal on the first battery. Connect the negative lead from the multimeter to the negative terminal on the second battery. The multimeter display will show a total voltage equal to the sum of the voltage of both batteries. If two 1.5 volt batteries were connected together, the multimeter would show 3 volts.
- 4). Repeat the process to add a third battery. Connect a wire from the negative terminal on the second battery to the positive terminal on the third battery. Measure the voltage across the three batteries by connecting the positive lead from the multimeter to the positive terminal on the first battery, and the negative lead to the negative terminal on the third battery. If 1.5 volt batteries are used, the multimeter will show 4.5 volts across the batteries.
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