How to Connect Batteries in Series
Learn how to connect batteries in series safely and correctly to increase voltage for your devices and power needs.
To connect batteries in series, start by confirming all batteries have the same voltage and capacity. You'll connect the positive terminal of one battery to the negative terminal of the next. This setup increases your total voltage while maintaining the amp-hour capacity.
To wire multiple batteries in series, connect the negative terminal (-) of one battery to the positive terminal (+) of another, and do the same to the rest. Take Renogy 12V 200Ah Core Series LiFePO4 Battery as an example. You can connect up to 4 such batteries in series. In this system, the system voltage and current are calculated as follows:
When you connect batteries in series, you fundamentally increase the total voltage while keeping the same amp-hour capacity. In a series connection, you link batteries by connecting the positive terminal of one battery to the negative terminal of the next. For example, two 12V batteries will give you a total voltage of 24V.
Connecting batteries in series increases the voltage of a battery pack, but the AH rating (also known as Amp Hours) remains the same. To connect batteries in a series, a jumper wire connects a battery's negative terminal to another battery's positive terminal.
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