0 ratings
Item #:
91229843
DALY Smart BMS Li-ion 3S 12V 40A PCB Battery Management System with UART Communication CAN 485 Bluetooth Battery Monitoring Module for 18650 Battery
90% of respondents would recommend this to a friend
Item #:
91229843
XCD 393
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
QTY:
Order now and get it around Saturday, October 24
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
DALY BMS maximizes optimizes the lithium battery performance, and extends the battery lifetime to a large extent.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Smart Communication
Equipped with UART communication and Bluetooth monitoring, this BMS offers real-time battery status access, enhancing user experience and allowing seamless integration with smart devices.
High Current Support
Designed for 12V 30A applications, this battery management system efficiently manages high-current loads, making it ideal for demanding setups such as electric vehicles and portable power stations.
Versatile Compatibility
Compatible with 18650 battery packs, this BMS ensures a safe and efficient charging and discharging process, providing peace of mind while maximizing battery lifespan and performance.
Product Details
| Brand | DALY |
| UPC | 768655919114 |
| Manufacturer | Dongguan Daly Electronics Co., Ltd |
| Item Dimensions | 2.6 x 5.04 x 0.71 inches (6.6 x 12.8 x 1.8 cm) |
| Item dimensions L x W x H | 2.6 x 5.04 x 0.71 inches (6.6 x 12.8 x 1.8 cm) |
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?
-
Electric Vehicle Enthusiasts
Ideal for users building custom electric vehicles needing efficient battery management and communication capabilities.
-
Renewable Energy Users
Perfect for those integrating lithium batteries into solar or wind energy systems requiring reliable monitoring and management.
-
DIY Hobbyists
Great for individuals building personal battery packs needing advanced functionalities and easy Bluetooth connectivity.
-
Commercial Applications
Not suitable for industrial or heavy commercial operations requiring high-capacity and robust BMS solutions.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the DALY Smart BMS and how does it work?
Answer: The DALY Smart BMS is a Battery Management System that monitors and protects lithium-ion batteries, specifically designed for 3S (3 cells in series) 12V configurations. It ensures the safe operation of the battery pack by managing cell balancing, overvoltage, undervoltage, and overcurrent conditions. The system utilizes UART communication along with CAN and Bluetooth features, enabling real-time monitoring of battery health and performance via a smartphone app or other devices. This is particularly useful for applications in electric bicycles, solar energy systems, or any DIY battery pack projects. -
Question:
What benefits does the Bluetooth feature provide?
Answer: The Bluetooth functionality of the DALY Smart BMS allows users to wirelessly connect and monitor battery performance through a compatible mobile app. This feature offers convenience, as it enables real-time tracking of battery voltage, current, and temperature without needing physical access to the battery. Users can receive alerts for critical conditions and make adjustments accordingly. For example, if you are using it in an electric scooter, you can quickly check the battery status and health before your ride. -
Question:
How do I install the DALY Smart BMS on my battery pack?
Answer: Installing the DALY Smart BMS involves connecting it to your 18650 lithium-ion cells. Start by wiring the battery cells following the provided connection diagram, ensuring that the positive and negative terminals are correctly aligned. Once wired, the BMS will automatically start managing the battery pack's charging and discharging processes. It's crucial to double-check the wiring to prevent malfunction. This system is ideal for users seeking to create safe and efficient battery packs for various applications, such as renewable energy storage or electric vehicles. -
Question:
Is the DALY Smart BMS compatible with other battery technologies?
Answer: The DALY Smart BMS is specifically designed for lithium-ion batteries, particularly the 18650 cells. While it is optimized for this chemistry, users should refrain from using it with other types of batteries, such as lead-acid or lithium-polymer, as it may not provide accurate monitoring or protection features. This focus ensures that the system delivers reliable performance and safety for lithium-ion battery applications, making it suitable for projects like electric bicycles or small energy storage systems. -
Question:
What are the key specifications of the DALY Smart BMS?
Answer: The DALY Smart BMS is designed for a 3S configuration with a maximum continuous current rating of 30A. It features a working voltage range of 9V to 12.6V and includes various protection mechanisms such as overcharge, over-discharge, and short-circuit protection. It also provides UART communication alongside CAN and Bluetooth connectivity for extensive monitoring capabilities. These specifications make it ideal for users needing a robust management solution for their lithium battery packs in electric vehicles or DIY projects. -
Question:
Can I program the BMS settings via the application?
Answer: Yes, the DALY Smart BMS allows users to adjust various settings through the connected mobile application. This includes configuring parameters such as overvoltage and undervoltage limits, balancing options, and more. The app facilitates user-friendly navigation, enabling users to tailor the BMS according to their specific needs and battery characteristics. For instance, in a solar energy system, you can set voltage thresholds to optimize the lifecycle of your battery, enhancing its overall efficiency and longevity. -
Question:
What types of applications are suited for this BMS?
Answer: The DALY Smart BMS is well-suited for a variety of applications where safe and efficient lithium-ion battery management is essential. This includes electric bicycles, electric scooters, renewable energy storage systems, and emergency power supplies. The BMS’s real-time monitoring features and protective mechanisms ensure that battery packs operate safely while maximizing their lifespan. Users designing custom battery packs for DIY projects will also find it valuable for ensuring reliability during operation. -
Question:
What does the CAN protocol feature offer?
Answer: The CAN protocol feature in the DALY Smart BMS provides advanced communication capabilities, allowing integration with other devices and systems. This is particularly beneficial in applications such as electric vehicles where multiple systems need to communicate with one another. By connecting via CAN, users can ensure smooth data transfer between the BMS and vehicle controllers, contributing to better overall performance. It enables real-time monitoring and troubleshooting, essential for maintaining operational efficiency. -
Question:
How does cell balancing work in the BMS?
Answer: Cell balancing in the DALY Smart BMS ensures that all individual battery cells within a pack maintain the same charge level. This process prevents any single cell from becoming overcharged or over-discharged, which could lead to reduced lifespan or safety hazards. The BMS monitors cell voltages continuously and redistributes charge as needed. This feature is crucial when using multiple cells in series, such as in a 3S configuration, as it helps maintain optimal performance and stability during both charging and discharging cycles. -
Question:
Where can I buy the DALY Smart BMS in Montserrat?
Answer: You can buy the DALY Smart BMS Li-ion 3S 12V 30A PCB Battery Management System with UART Communication and Bluetooth features at Ubuy. Ubuy offers a reliable platform for purchasing various electronic components and ensures a straightforward buying experience, making it a great choice for acquiring your BMS today.
DALY Power Converters Editorial Review
**** The Daly Battery Management System (BMS) has received overwhelmingly positive feedback from users, particularly for its robust Construction and dependable performance. Customers have noted that the BMS efficiently fulfills its intended role of providing low and high voltage protection as well as facilitating top balancing within battery packs, a crucial feature for maintaining battery health. Those who are new to battery management systems are encouraged to familiarize themselves with the principles involved, particularly regarding balancing, through available online resources. Reviewers also emphasized the BMS's practical parameters, even if some users expressed a desire for slightly altered voltage settings for both discharge (approximately 2.75V) and charge (4.2V ± 0.05V) to extend the lifespan of the battery packs. A frequent point of discussion among customers is the non-active balancing feature, which is suitable for those tinkering with smaller packs, as one user detailed their successful experimentation with a 3S, 11-12V configuration. While some users encountered minor confusion regarding the wiring harness—mentioning inConsistencies about the number of wires specified in the instructions—this did not detract significantly from their overall satisfaction with the product. The Consensus is that Daly BMS outperforms cheaper, less reliable alternatives. Users who have invested in higher-end systems such as JK BMS or Batrium also showed an interest in newer Daly models featuring smart capabilities and Bluetooth integration. Overall, the Daly BMS is highly recommended for both hobbyists and more serious battery builders for its reliability and solid engineering. **
Customer Reviews & Ratings
1 customers ratings
-
5 Star
0%
-
4 Star
100%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Well-built and robust Construction
- Effective low/high voltage/current protection
- Provides top balancing features
- User-friendly for those willing to learn
- Preferred over cheaper alternatives
- Interest in advanced models with smart features
Cons
- Non-active balancing may not meet all users' needs
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
XCD 393
Order now and get it around Saturday, October 24
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Established in 2015 as a leading manufacturer of lithium battery protective boards.
- Offers a wide range of BMS specifications from 3S to 32S and 12v to 120v.
- Features smart technology for real-time monitoring and adjustments via Bluetooth.
- Provides comprehensive protection against overcurrent, overcharge, and temperature issues.
- Utilizes high-quality, durable materials with patented technology for enhanced reliability.
- Offers 24-hour customer service and lifetime technical support for all products.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.