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- 1). Place the six rechargeable batteries in two groups on opposite sides of the inverter, with three on one side and three on the other. Set each group up in two rows, so row one contains one battery and row two contains two batteries. Arrange the single battery in row one, so the negative lead is closest to the negative lead on the inverter. In the second row, arrange the positive lead on the first battery, so it is closest to the positive lead on the inverter. This configuration makes it easy to wire the batteries in series, which is a way to get the most power out of the fewest batteries.
- 2). Wire the negative lead on the inverter to the negative lead on the single battery in row one. Now do the same for the single battery in row one on the opposite side of the inverter.
- 3). Wire the positive lead of the battery in row one to the negative lead of the first battery in row two. Wiring positive to negative like this the hallmark of series wiring because positive to negative causes the voltage output of the batteries to add together, so three 4-volt batteries will put out 12-volts. Now do the same on the opposite side of the inverter.
- 4). Wire the positive lead on the first battery in row two to the negative lead on the second battery in row two. Do the same to the batteries on the opposite side of the inverter.
- 5). Complete the circuit by wiring the positive lead of the second battery in row two to the positive lead on the inverter, and do the same on the opposite side of the inverter. These six 4-volt batteries wired in series will produce a 12-volt battery bank at 1,000 amp/hours capacity, according to the battery designer tool at the Free Sun Power website.
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