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Smart BMS 4S 12V Lifepo4 Lithium Battery Management PCB Protection Board with Balance Leads and Wireless Bluetooth - Supports 4 Cells 12.8 Volts DIY Programmable (150A)
Experience unparalleled control and longevity with our Fully Programmable Smart BMS designed for 4S Lithium DIY Battery Packs.
Smart BMS 4S 12V Lifepo4 Lithium Battery Management PCB Protection Board with Balance Leads and Wireless Bluetooth - Supports 4 Cells 12.8 Volts DIY Programmable (150A)
Item #: 129040242

Smart BMS 4S 12V Lifepo4 Lithium Battery Management PCB Protection Board with Balance Leads and Wireless Bluetooth - Supports 4 Cells 12.8 Volts DIY

Item #: 129040242

XCD 380

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*All items will import from US

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Experience unparalleled control and longevity with our Fully Programmable Smart BMS designed for 4S Lithium DIY Battery Packs.
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What Stands Out

Bluetooth Connectivity
Advanced wireless technology allows users to monitor battery status remotely through a smartphone app, enhancing user convenience and real-time data access.
Programmable Features
Customizable settings enable tailored operation to individual needs, allowing users to optimize performance and safety of their specific battery applications.
High Capacity Support
Supports up to 150A current draw, suitable for demanding applications, ensuring reliable and consistent power delivery for various DIY projects.

Product Details

Shop Smart BMS 4S 12V Lifepo4 Lithium Battery Management PCB Protection Board with Balance Leads and Wireless Bluetooth - Supports 4 Cells 12.8 Volts DIY Programmable (150A) online at a best price in Anguilla. B0F18XRYCN
Brand NameRadioB Tech
Unit Count1.0 Count
ManufacturerGeneric
Included ComponentsCables
Part NumberRB-124S
Display TypeApp on connected device
Colorgreen
Material TypeMetal, Plastic
Item Dimensions L x W x H5.43"L x 4.02"W x 0.67"H (13.8 x 10.2 x 1.7 cm)
Item Weight13 Ounces (368.55 grams)
BrandRadioB Tech
Product Dimensions (L x W x H)5.43"L x 4.02"W x 0.67"H (13.8 x 10.2 x 1.7 cm)
MaterialMetal, Plastic

Dangerous Goods

To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.

Who Should Buy?

Suitable For
  • DIY Enthusiasts

    Perfect for hobbyists looking to build their own battery packs with programmable settings and Bluetooth management.

  • Electric Vehicle Users

    Ideal for electric vehicle applications requiring effective battery management and cell balancing for optimal performance.

  • Energy Storage Systems

    Great option for those building home energy storage systems, ensuring safety and efficiency for solar energy solutions.

Not Suitable For
  • Novice Users

    Not suitable for beginners lacking knowledge in battery management systems and electrical configurations.

Product Description

Smart BMS 4S 12V Lifepo4 Lithium Battery Management PCB Protection Board with Balance Leads and Wireless Bluetooth - Supports 4 Cells 12.8 Volts DIY Programmable (150A)

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is a Smart BMS 4S 12V Lifepo4 Battery Management PCB Protection Board?

    Answer: The Smart BMS 4S 12V Lifepo4 Battery Management PCB Protection Board is a crucial component designed for managing lithium iron phosphate (LiFePO4) batteries. It offers protection against overcharging, over-discharging, and short circuits, ensuring the longevity and safety of your battery system. This product supports a total of four cells, allowing for a nominal voltage of 12.8 volts, making it ideal for DIY battery systems in various applications such as electric vehicles, solar energy storage systems, and more. Additionally, the integrated Bluetooth functionality allows for real-time monitoring of battery performance via a smartphone app.
  • Question: How do I install the Smart BMS 4S 12V Lifepo4 battery protection board?

    Answer: Installing the Smart BMS 4S 12V Lifepo4 battery protection board involves connecting it correctly to your battery cells. Firstly, ensure that each of the four LiFePO4 cells is wired in series. The BMS will typically have designated input and output connections that must match the cell arrangement. For a proper install, follow the wiring diagram provided with the board, ensuring all connections are secure to prevent potential shorts. Practical use cases include setting up battery packs for renewable energy systems or DIY electric bikes, where a reliable BMS is critical for safety and efficiency.
  • Question: What features does the wireless Bluetooth functionality offer?

    Answer: The wireless Bluetooth functionality of the Smart BMS 4S allows users to connect their smartphones to the management board, giving them access to real-time data on battery health and performance. Through a dedicated app, users can view parameters such as voltage, current, temperature, and state of charge. This feature is particularly useful for monitoring performance during usage, making it easier to optimize the battery's lifespan and detect any issues before they become serious. For example, you can check the status of your DIY electric vehicle batteries while on the go.
  • Question: What types of batteries are compatible with this BMS?

    Answer: The Smart BMS 4S 12V Lifepo4 Protection Board is specifically designed for use with lithium iron phosphate (LiFePO4) batteries, which are known for their stability and safety compared to other lithium options. This BMS supports four cells connected in series, providing a total system voltage of 12.8 volts. Ideal applications include solar power systems, electric vehicles, and energy storage systems, where reliable performance and safety are paramount. Using this BMS ensures that your battery cells are balanced and protected, thus enhancing their overall efficiency.
  • Question: Can I use this BMS for larger battery configurations?

    Answer: The Smart BMS 4S 12V Lifepo4 Battery Management System is designed specifically for configurations with four cells in series. For larger setups, additional BMS units can be configured to manage more cells, either in parallel or series to align with your project’s voltage and capacity requirements. For example, if you are aiming for a 48V system, you might combine multiple 4S setups to meet that voltage. Always ensure that the BMS configurations used align with safety parameters to maintain optimal performance.
  • Question: What safety features are included with the Smart BMS?

    Answer: This Smart BMS includes a variety of essential safety features to protect your battery system, such as over-voltage protection, under-voltage protection, over-current protection, and temperature monitoring. These protective mechanisms are crucial for preventing potential hazards like overheating or battery damage. For instance, if one cell begins to overcharge, the BMS will automatically cut off the connection to avoid catastrophic failure. This makes it an ideal choice for applications in electric vehicles or home energy storage systems that prioritize user safety.
  • Question: Is balancing cells necessary, and how does this BMS assist?

    Answer: Cell balancing is essential to ensure uniform voltage levels across all cells in a battery pack, which promotes efficiency and prolongs battery life. The Smart BMS 4S 12V features built-in balance leads, which help equalize the charge levels of each cell. When cells are not evenly charged, it can lead to reduced performance and lifespan. This BMS automatically balances the cells during charging, ensuring that each cell reaches an optimal charge level, making it perfect for DIY energy storage systems where battery longevity is key.
  • Question: What are some common applications for this Smart BMS?

    Answer: The Smart BMS 4S 12V Lifepo4 Battery Management PCB Protection Board is versatile and can be utilized in various applications. Common uses include DIY electric vehicles, solar energy storage systems, and portable power sources for tools and devices. Its ability to protect and monitor battery health makes it a prime choice for anyone looking to build reliable energy solutions. For example, an enthusiast creating a solar-powered vehicle would benefit from this BMS to ensure that the battery maintains optimal performance and safety throughout its use.
  • Question: What kind of maintenance does this BMS require?

    Answer: The Smart BMS requires minimal maintenance. Regularly monitor the battery status through the Bluetooth app to ensure all cells are balanced and performing correctly. Check for any physical damage or wear on the connections periodically, as ensuring secure connections is key to preventing failures. Additionally, maintaining a clean environment for the battery setup can enhance performance and longevity. For example, after a long cycling period, inspecting the BMS and battery connections can help identify potential issues early, ensuring continued efficient operation.
  • Question: Where can I buy the Smart BMS 4S 12V Lifepo4 Lithium Battery Management PCB Protection Board?

    Answer: You can purchase the Smart BMS 4S 12V Lifepo4 Lithium Battery Management PCB Protection Board with Balance Leads and Wireless Bluetooth from Ubuy. They offer a reliable platform for purchasing electronic components, ensuring you receive quality products that meet your needs. By shopping on Ubuy, you can take advantage of their wide selection and convenient shopping experience, making it easier to find the right components for your DIY projects.

RadioB Tech Editorial Review

**Editorial Review** The Smart BMS 4S 12V Lifepo4 Lithium Battery Management PCB Protection Board has garnered a positive reception from its users, showcasing a blend of functionality, performance, and user-friendly features. Customers commend the BMS for its robust capability, especially when balancing charge states with a minimal differential between cell pairs, and its ability to handle a significant workload without overheating. The Bluetooth connectivity is a standout feature among users, who appreciate the ease of setup and monitoring through their devices. Many reported that the initial installation was straightforward, even for those without prior experience. However, there are noteworthy points of concern amongst the feedback. Users expressed dissatisfaction with the inadequate length of the connecting wires, which has led some to seek alternatives. Additionally, while the Bluetooth app provides essential insights into battery health and performance, users raised cybersecurity concerns regarding the necessity to download the app from the manufacturer’s website rather than a trusted platform. This has created anxiety regarding app security despite users finding the functionality and features of the iPad version superior. Overall, the Smart BMS stands out as a solid investment with its compact design and performance, but potential buyers should be aware of the associated wiring issues and the need for caution when handling app downloads. **

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Pros

  • Excellent balancing capabilities during charging.
  • Reliable Bluetooth connection with a long-range signal.
  • Easy setup and compatibility, even for beginners.
  • Robust performance with zero overheating during high charge/discharge cycles.
  • Compact and well-built design.

Cons

  • Short wire lengths that may necessitate additional purchases or modifications.

Platform Trust & Buyer Confidence

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4.2/5 9250 + reviews
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MA
Mohammad
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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

23 July 2026 · via Trustpilot
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Chitra
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”

22-Jul-26 · via Trustpilot
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kund
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”

23-Jul-26 · via Trustpilot
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Onesi
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”

22 July 2026 · via Trustpilot
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SAO JOHN
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”

23 July 2026 · via Trustpilot
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