Smart NMC BMS 3S 4S 7S 10S 30A-250A common port

Short Description:

Different battery types with different strings require different BMS. The following is the commodity information about Li-ion smart BMS 3S, 4S, 7S, 10S.

Product Detail

Product Tags

Three Communication modes

Through the three communication functions of UART, RS485 and CAN, BMS is connected to the PC SOFT, the LCD screen or the mobile phone APP to intelligently manage the lithium battery. Support customization of communication protocols such as mainstream inverters and Chinese tower protocol.


Intelligent Bluetooth Communication

Through the Bluetooth, BMS can connect to the SMARTBMS APP to monitor battery data in real time, and set relevant parameter values, such as battery voltage, total voltage, temperature, power, alarm information, charge and discharge switches, etc.


Micro-controller (MCU) chip

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)


selected high-quality parts

In Daly, we adopt professional high-current wiring design and technology, high-quality components such as high-current copper plates and wave-type pure aluminum heat sinks, which can withstand the large current.

Behind every inconspicuous detail, there is ingenuity, and the details can be seen everywhere.

Meet various customized needs

The R&D team implements the first-inquiry responsibility system to ensure that every individual demand is responded in a closed loop, with strong flexible manufacturing strength, to ensure quality and delivery speed and meet the needs of various customization.


Respond quickly to customer needs

Daly has provided BMS to customers in more than 130 countries and regions around the world, with an annual output of more than 10 million various types of BMS. Smart BMS is always in stock to quickly meet customers orders. For customized products, from the order to proofing to mass production, and to final delivery, we can finish the whole production process within the deadline.

Professional technical support

A strong team of 100 engineers provides professional one-to-one technical support and services.  The team provides thoughtful service, and standard problems will be resolved within 24 hours.


DALY product innovation

DALY has gone through the stages of core research and development, functional optimization, patented invention, etc. With continuous innovation and breakthrough, DALY finds a path that suits its development.


Corporate mission

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


Scientific research experts

Bringing together a number of leaders in the field of lithium battery BMS research and development, electronics, software, communication, structure, application, quality control, technology, materials, etc., DALY manufactures better BMS with perseverance and pursuit.

wund (8)

Daly welcomes you

Partners from more than 130 countries around the world.


Our exhibitions

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


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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