Standard NMC BMS 20S 21S 24S 27S 32S 20A-250A common port

Short Description:

Daly has moved forward to a new chapter and launched a brand trademark in 2022 to innovate intelligent technology and create the green energy world.

Pls be kindly noted that old and new logo products will be delivered randomly during the logo upgrade period.

Product Detail

Product Tags

Product Parameters

High-end BMS


waterproof, shock-proof and anti-extrusion BMS

Daly BMS is famous for waterproof, shock-proof and anti-extrusion. It adopts fully enclosed one-piece ABS injection molding, which provides a solution for the industry problem of BMS sealing.


Premium Micro Controller Unit

Only by realizing high-precision detection and high-sensitivity response to voltage and current, the BMS can achieve great protection for lithium batteries. Daly standard BMS adopts IC solution, with high-precision acquisition chip, sensitive circuit detection and independently written operation program, to achieve voltage accuracy within ±0.025V and short-circuit protection of 250~500us to ensure the efficient operation of the battery and easily handle complex solutions.

For main controlling chip, its flash capacity up to 256/512K. It has the advantages of chip integrated timer, CAN, ADC, SPI, I2C, USB, URAT and other peripheral functions, low power consumption, sleep shutdown and standby modes.

In Daly, we have 2 DAC with 12-bit and 1us conversion time (up to 16 input channels).


High-level cooperating suppliers

Daly and its qualified cooperating partners maintain long-term strategic cooperation to ensure the supply of high-quality parts. Through the patented technology, including the high-current design with copper plate, high-quality components such as high-current copper plate and corrugated aluminum radiator, Daly BMS can withstand the high current, thereby improving the performance and using life of the BMS

One-to-one technical service

Any questions about regular products, our engineers can solve them within 24 hours. If you have customized requirements about products or any other questions, our engineers will help you solve all the problems with the highest efficiency. A strong technical team of 100 engineers is always here to help you.


Strong and powerful production capacity

Nowdays, Daly has reached an annual output of more than 10 million pieces of various BMS,  and a daily output of 30,000+. We have provided BMS solutions for hundreds of millions of customers in more than 130 countries and regions around the world. And the conventional inventory is always sufficient and can be delivered within a short time.


Various applications are available

DALY BMS can be applied to various lithium battery application scenarios such as electric two-wheelers, tricycles, low-speed four-wheelers, AGV forklifts, tourist vehicles, RV energy storage, solar street lights, household energy storage, outdoor energy storage, and base stations, etc.


Long-term R&D Investment

Daly is an enterprise driven by technological innovation. It has continued to invest a lot in research and development for many years, obtained nearly 100 patents, and become a benchmark for industry development. With high-quality products and services, Daly won the trust of customers.


Corporate Mission

Innovate intelligent technology to create a clean and green energy world.


Top technical experts in the industry

Among the more than 100 outstanding engineers of Daly, there are 8 leaders in the field of lithium BMS research and development, leading the technical team to conquer the fields of electronics, software, communication, structure, application, quality control, technology, materials, etc.


Recognized by the world

Daly BMS is sold well in more than 130 countries and regions around the world.


Daly BMS appeared in large exhibitions around the world

India Exhibition / Hong Kong Electronics Fair China Import and Export Exhibition


Patent Certification

Daly lithium BMS has obtained a number of patents and both domestic and foreign certifications.


Purchase Notes

DALY company engaged in R&D, design, production, processing, sales and after-sales maintenance of Standard and smart BMS, professional manufacturers with complete industrial chain, strong technical accumulation and outstanding brand reputation, focusing on create "more advanced BMS", strictly carry out quality inspection on each product, obtain the recognition from customers around the world.

Please view and confirm the product parameters and details page information carefully before purchasing, contact with online customer service if have any doubts and questions. To make sure you are buying the correct and suitable product for your use.

Return and exchange instructions

Firstly, Please carefully check whether it is consistent with the ordered BMS after receiving the goods.

Please operate in strict accordance with the instruction manual and the guidance of customer service personnel when installing the BMS. If the BMS does not work or is damaged due to misoperation without following the instructions and customer service instructions, customer need to pay for repair or replacement.

please contact customer service personnel if have any questions.

Delivery Notes

Ships within three days when in stock(Except holidays).

Immediate production and customization are subject to consultation with customer service.

Shipping options: Alibaba online shipping and customer's choice(FEDEX, UPS,DHL,DDP or economic channels..)


Product warranty: 1 year.

Usage Tips

1. The BMS is a professional accessory. Many operating errors will result in product damage, so please follow the instructions manual or wiring video tutorial for compliance operation.

2. Strictly forbidden to reversely connect the B- and P- cables of the BMS,forbidden to confuse wiring.

3.Li-ion, LiFePO4 and LTO BMS are not universal and incompatible, mixed use is strictly prohibited.

4.BMS only be used on battery packs with the same strings.

5.It is strictly forbidden to use the BMS for over-current situation and unreasonably configure the BMS. Please consult customer service if you don't know how to choose the BMS correctly.

6. Standard BMS are prohibited from being used in series or in parallel connection. Please consult customer service for details if it is necessary to use in parallel or series connection.

7. Forbidden to disassemble the BMS without permission during use. The BMS does not enjoy the warranty policy after privately dismantling.

8. Our BMS has waterproof function. Because of these pins are metal, forbidden to soak in water to avoid oxidation damage.

9. Lithium battery pack needs to be equipped with dedicated lithium battery

charger, other chargers cannot be mixed to avoid voltage instability etc. lead to the breakdown of the MOS tube.

10.Strictly forbidden to revise the special parameters of Smart BMS without

permission. Pls contact customer service if you need to modify it. After-sales service cannot be provided if the BMS was be damaged or locked due to unauthorized parameters modification.

11. The use scenarios of the DALY BMS include: Electric two-wheeled bicycle,

forklifts, tourist vehicles, E-tricycles, low speed Four-wheeler, RV energy storage, photovoltaic energy storage, home and outdoor energy storage and etc. If the BMS needs to be used in special conditions or purposes, as well as customized parameters or functions, please consult customer service in advance.

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