A solar battery bank allows you to store and access solar power even when the sun is no longer shining. However, it’s essential that the batteries in your bank are properly connected to ensure that it is safe to use and can meet your energy needs. Correctly connecting your batteries ensures that your system operates efficiently and safely. Keep reading to learn more about how to connect your solar batteries, as well as different methods of connection.
Preparing for Installation
Properly installing your solar batteries begins by properly preparing for the installation. You should ensure that you have all necessary safety equipment, including gloves, safety glasses, and a well-ventilated area to work in. Always disconnect the power source and use insulated tools to minimize the risk of being shocked.
Ensure your batteries are compatible, with matching type, size, and voltage; mixing different types of batteries can lead to charging imbalances, which reduces the lifespan of your battery bank.
Different Connection Methods
You should also take the time to learn about the 2 different ways to connect your batteries into a bank. Each has its own pros and cons, and the right way to connect your batteries depends on your energy needs:
- In Series: When you connect batteries in series, you are adding the voltage of each battery together while maintaining the same capacity. This is the best method if your inverter or other equipment requires higher voltage. For example, if you connect 2 batteries in series that have 12V and 100Ah, you will have a bank of 24V and 100Ah.
- In Parallel: Connecting in parallel keeps the voltage of the bank the same, but increases the capacity. This is the best connection method if you need more energy storage, but want to maintain the system’s voltage. For example, the same batteries listed above would give you 12V and 200Ah of power when connected in parallel.
To connect batteries in series, you will connect the positive terminal of the first battery to the negative terminal of the second battery. Follow this method for all batteries in the series. The remaining unconnected terminals (1 positive, 1 negative) will be the output to the solar power system.To connect in parallel, connect all the positive terminals of your batteries to one another, then connect all the negative terminals.
When creating a solar battery storage bank, be sure to thoroughly research the methods for connecting your batteries and follow all manufacturer instructions.
