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Item #:
115838357
DALY Smart BMS Li-ion 48V 14S 40A with UART Communication, Resetting Bluetooth Module,Common Port for RV Lithium Power Rated 3.7V Converter (Smart
89% of respondents would recommend this to a friend
Item #:
115838357
GBP 47
Price Details
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Order now and get it around Friday, October 16
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DALY BMS maximizes optimizes the lithium battery performance, and extends the battery lifetime to a large extent.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Smart Bluetooth
Equipped with a resetting Bluetooth module, this Smart BMS enables seamless wireless communication for remote monitoring and management of battery systems, enhancing user convenience and operational efficiency.
High Capacity
With a robust 30A output, this BMS manages up to 14 lithium cells effectively, providing a reliable power management solution for RV and energy storage applications, ensuring safety and longevity.
User-friendly Interface
The integrated UART communication feature simplifies connection with different devices, facilitating easy diagnostics and configuration, which empowers users to optimize their energy systems without technical expertise.
Product Details
| Brand | DALY |
| Model Number | B09T9R8C81 |
| UPC | 768647606183 |
| Number of Items | 6 |
| Number of Packs | 1 |
| Unit Count | 1 Count |
| Manufacturer | Dongguan Daly Electronics Co., Ltd |
| Input Voltage | 3.7 volts |
| Output Voltage | 48 volts |
| Plug Type | Type A |
| Color | Smart BMS |
| Plug Format | Type A |
| Item Weight | 1 lbs (450 grams) |
Who Should Buy?
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RV Enthusiasts
Ideal for RV owners needing reliable lithium power management for their mobile power stations while traveling.
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DIY Battery Builders
Suitable for hobbyists building their own battery systems, offering versatile monitoring and management capabilities.
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Sustainable Power Users
Perfect for users committed to eco-friendly solutions, facilitating efficient use of lithium batteries in renewable setups.
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Commercial Use
Not ideal for high-demand commercial applications where stronger, more robust BMS solutions are needed.
Product Description
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Customer Questions & Answers
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Question:
What is the purpose of a battery protection board like the DALY BMS Li-ion 14S 48V 20A?
Answer: The DALY BMS Li-ion 14S 48V 20A battery protection board is designed to ensure the safety and longevity of lithium-ion battery packs. It prevents overcharging, over-discharging, and short circuits while balancing the charge across the cells. This is essential as it helps maintain optimal performance and improves the overall lifespan of your battery. For instance, a balanced battery pack operates more efficiently and safely, which is particularly important in applications such as electric vehicles and solar energy storage. -
Question:
How does the balance function work in the DALY BMS board?
Answer: The balance function in the DALY BMS board works by equalizing the voltage levels across each lithium-ion cell in the pack. During charging, the BMS monitors each cell's voltage and redistributes excess charge from higher voltage cells to lower voltage cells. This ensures that all cells reach optimal charge levels simultaneously, reducing the risk of cell damage and enhancing performance. Proper balancing is vital in advanced applications like e-bikes, where uniform cell performance leads to better mileage and efficiency. -
Question:
What are the specifications of the DALY BMS Li-ion 14S 48V 20A?
Answer: The DALY BMS Li-ion 14S 48V 20A features a standard voltage rating of 3.7V per cell, supporting a total of 14 cells connected in series. It can handle a continuous current of 20A, making it suitable for various applications such as electric scooters, drones, and other battery-powered devices. Additionally, the common port feature simplifies installation, allowing for easier integration with your battery management system while ensuring efficient power distribution. -
Question:
Can the DALY BMS 20A be utilized for different battery chemistries?
Answer: The DALY BMS 20A is specifically designed for lithium-ion battery packs. It is tailored to manage the unique charging and discharging characteristics of Li-ion chemistry, ensuring safety and efficacy. While using it with non-Li-ion battery types isn't recommended, adaptations may be required for other chemistries such as LiFePO4. Users should consult documentation or seek alternatives designed for those specific battery types to ensure optimal performance and safety. -
Question:
What applications are best suited for the DALY BMS Li-ion 14S 48V 20A?
Answer: The DALY BMS Li-ion 14S 48V 20A is ideal for applications that require reliable battery management, such as electric bikes, electric skateboards, solar power systems, and portable power tools. These types of devices benefit from the board’s ability to offer protection, enhance cell longevity, and optimize energy usage. In electric vehicles, for instance, effective battery management can significantly extend range and improve safety. -
Question:
How do I install the DALY BMS 20A board in my battery pack?
Answer: Installing the DALY BMS 20A board involves connecting each battery cell to the designated terminals on the PCB according to the wiring diagram provided with the product. You'll need to connect the positive and negative terminals for the entire pack and ensure that all balancing leads are appropriately attached. Careful installation is crucial, as improper connections can lead to malfunction or hazards. If you're new to battery setup, following tutorials or consulting experts can aid in achieving a safe installation. -
Question:
What is the maximum load the DALY BMS 20A can handle?
Answer: The DALY BMS 20A can handle a continuous load of up to 20A. This specification is critical for users who plan to integrate the board into high-demand applications, ensuring that it can safely manage the required power without overheating or malfunctioning. In practical use, this means that electric scooters and other devices that draw around 20A can operate reliably with the DALY BMS, safeguarding both performance and battery integrity. -
Question:
Is the DALY BMS board compatible with 18650 lithium cells?
Answer: Yes, the DALY BMS board is compatible with 18650 lithium cells, which are commonly used in various applications due to their efficiency and energy density. These cells typically provide a nominal voltage of 3.7V, aligning perfectly with the specifications of the BMS. Therefore, when constructing battery packs for e-bikes or solar energy systems, using 18650 cells with this BMS can optimize performance and reliability while ensuring safe operations. -
Question:
How do I know if the DALY BMS is functioning correctly?
Answer: To determine if the DALY BMS is functioning correctly, monitor the voltage of each cell during charge and discharge cycles. Ensure that the cells are balanced and not exceeding voltage limits. Moreover, the board should not emit any unusual heat or warning signals during operation. If any discrepancies arise, reviewing connections, configurations, or consulting the product manual can assist in troubleshooting any issues effectively. -
Question:
Where can I buy DALY BMS Li-ion 14S 48V 20A PCB Battery Protection Board in Jersey?
Answer: You can conveniently purchase the DALY BMS Li-ion 14S 48V 20A PCB Battery Protection Board from Ubuy. This platform provides a simple shopping experience and ensures that you receive authentic products along with efficient transaction processes. Ubuy frequently updates stock, making it easier to find the specific electronic components you need.
DALY Power Converters B09T9R8C81 Editorial Review
The DALY BMS Li-ion 14S 48V 80A PCB Battery Protection Board has garnered a mixed reception from users, with experiences ranging from appreciation for its features to significant frustrations regarding its functionality and reliability. On the positive side, users note that the ability to interface with the product via Bluetooth is handy, offering real-time information about battery conditions that could aid troubleshooting in the event of an issue. Installation appears to be straightforward, and the balancing function of the BMS is recognized as a strong point by some reviewers. However, the product is heavily criticized for its failure to perform essential tasks, primarily low voltage shut-off and proper balancing of battery cells. Instances have been reported where the BMS allowed cells to drop to dangerously low voltages, leading to damage of expensive battery packs. Users also encountered issues with overheating and inaccurate amp readings when the system was under significant load. Support from the manufacturer has been described as lacking, particularly regarding compatibility issues with various software options, which further exacerbates the frustration. In sum, while the DALY BMS boasts some useful features and an easy installation process, many users feel let down by its core functionalities and the support they received. Caution is advised for Prospective buyers, particularly for those looking for a reliable battery management solution. **
Customer Reviews & Ratings
3 customers ratings
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5 Star
71%
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4 Star
0%
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3 Star
29%
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Pros
- Bluetooth interface provides real-time battery information.
- Straightforward installation process.
- Effective balancing function noted by some users.
Cons
- Fails to provide reliable low voltage shut-off, risking battery damage.
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11 September 2026 · via Trustpilot
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8 September 2026 · via Trustpilot
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Features & Benefits
- Specializes in lithium battery protective boards.
- Compatible with various applications: energy storage, electric vehicles, tools, and more.
- Offers a wide range of specifications: 3S – 32S, 12v-120v, and 5A-500A.
- Features double protection technology and high-quality materials.
- Easy installation with a design for quick electrical connections.
- Provides 24-hour customer service and lifetime technical support.
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