How To Hook Up Batteries In Series And Parallel. Connecting in parallel stacks up the amp hours of each battery allowing for a longer use. To connect a group of batteries in series you connect the negative terminal of one battery to the positive terminal of another and so on until all batteries are connected you would then connect a linkcable to the negative terminal of the first battery in your string of batteries to your application then another cable to the positive terminal of the last battery in your string to your application.
To wire batteries in a series you will first need to connect the positive terminal from Battery A to the ground or negative terminal of Battery B. To do this you need to connect the POS terminal of the first battery to the NEG - terminal of the second battery. Two Batteries Wired in Series.
After all your parallel or series-wired batteries are only as good as their weakest link and will operate only as long as the least charged cell.
The basic concept when connecting in series is that you add the voltages of the batteries together but the amp hour capacity remains the same. The critical difference is that series batteries add voltages together at a common current while parallel batteries add currents together at a common voltage. Wiring multiple power sources in series will increase the available voltage. Figure 1 is a representation of the setup many of you were taught.
