Many people often ask: how to wire 4 12V lithium batteries to make 48V?
No need to worry, just follow these steps:
1.Make sure all 4 lithium batteries have the same parameters (including a rated voltage of 12V and capacity) and are suitable for serial connection. Additionally, it is important to confirm if the BMS can be connected in parallel.
2.Arrange the 4 lithium batteries in a row and connect them one by one, with each positive terminal connected to the next negative terminal, thus achieving serial connection.
3.Use appropriate wires or cables to connect the terminals. Connect the positive terminal of the first battery to the positive pole of the load or system, while connecting the last battery to the negative pole of the load or system.
4. Carefully check all connection points to ensure that each positive terminal is correctly connected to the next negative terminal. This step is very important to avoid short circuits or polarity reversal problems.
5. Once all connections are established, make sure they are securely secured and insulated to prevent accidental short circuits or other safety hazards.
6. Before using this entire series connection for your desired application, use a multimeter to test if its overall output reaches 48V.
By following these steps, you can connect four 12V lithium batteries in series to create a 48V battery backup power supply. It is crucial to prioritize safety when handling batteries and electricity. If you are unsure, it is recommended to consult professionals or experienced electrical system engineers.
For home battery backup power supply, a better powerwall alternative would be to use the YouthPOWER 48V battery storage directly. This option offers improved safety, space-saving benefits, reduced costs, and simplified maintenance compared to wiring four 12V lithium batteries in series or parallel.
YouthPOWER 48V battery energy storage has both wall-mounted and rack-mounted, as well as all-in-one inverter battery ESS. It has been approved by UL1973, CE and IEC62619 standards, ensuring a safe and reliable power source for home, office, or backup applications.
Share one of our hot selling lifepo4 battery 48v models: 5kWh-48V 100Ah wall battery. Due to its simple and nice appearance design, as well as the advantages of long life, high safety and lightweight design, this model performs well in home rooftop solar systems and is favored by customers.
It is also easy and simple to install. For more details, please refer to the manual:
Following are the steps for installation:
1.Choose suitable firm wall with thickness greater than 80mm.
2.Use the mounting frame as a template, mark the hole position.
3.Drill 8 holes according to the hole position, it is ø10 with depth 60mm.
4.Hammer the M8 screws to the above holes, and screw the nut. Note: Do not position screws flush to the wall - leave 10 to 20 mm exposed.
5.Fix the mounting frame to the 8 screws.
6.Raise the battery a little higher than the mounting frame whilst maintaining the balance of the battery. Hang the battery on the frame through the match hooks.
Here are some latest installation project photos from our partners:
Consider the difference in cost and ease of installation. Wiring four 12V batteries in series or parallel is more complex than installing YouthPOWER 48V home energy storage battery, resulting in a higher installation cost. Switching to YouthPOWER 48V battery can also save you money in the long run, as it requires less maintenance and has a longer lifespan.
For more YouthPOWER 48V battery storage information, please click here: https://www.youth-power.net/residential-battery/ or contact sales@youth-power.net
Post time: Apr-25-2024