What is the DALY BMS 21S 72V 20A Li-ion Battery Protection Module?

The DALY BMS 21S 72V 20A is a Battery Management System designed for lithium-ion batteries, specifically for a 21-series configuration, typically used with 18650 cells. It ensures the safety and efficiency of the battery pack by monitoring voltage and temperature, balancing cells, and preventing overcharging or deep discharging. With built-in balance leads, this module helps maintain optimal performance across all cells in the battery pack, making it ideal for electric vehicles, e-bikes, or solar energy storage systems.

How does the balancing function work in this BMS?

Balancing in the DALY BMS 21S occurs through a voltage monitoring system that detects imbalances between the lithium-ion cells. If one cell's voltage drops significantly lower than others, the BMS redistributes the charge among cells to ensure even energy usage and longevity. This function is crucial for maximizing the lifespan of your battery pack because unbalanced cells can lead to premature failure or reduced capacity, especially significant in applications like electric bikes or tools where reliable performance is needed.

What does the '20A' rating signify in this BMS?

The '20A' rating indicates the maximum continuous current that the DALY BMS can handle without overheating or malfunctioning. This specification is essential for users who plan to power devices that require a substantial current draw, such as scooters or heavy-duty power tools. Selecting a BMS with the appropriate current rating ensures safety and reliability, preventing potential issues such as overheating and extending the effective service life of your battery pack.

Can this BMS be used for different types of lithium batteries?

While the DALY BMS 21S is optimized for 18650 lithium-ion cells, it can technically be integrated with other lithium battery types, provided they share similar voltage and capacity specifications. However, it’s important to note that employing the BMS in incompatible configurations might lead to inefficiencies or safety risks. For applications where different cell types are required, careful monitoring and additional equipment may be necessary to achieve balanced performance.

Does this BMS support over-voltage protection?

Yes, the DALY BMS 21S features over-voltage protection, which prevents the battery cells from exceeding their safe voltage threshold. This is critical for maintaining both performance and safety, as over-voltage can damage cells or lead to hazardous situations. Such protection systems are particularly important in high-performance applications, where fluctuating loads are common, helping ensure that your battery system operates consistently without jeopardizing cell integrity.

What are the dimensions and weight of this BMS?

The DALY BMS 21S is designed to be compact yet effective, typically measuring around 180mm x 90mm x 30mm and weighing approximately 300 grams. These dimensions allow easy integration into various battery packs without taking up much space, making it suitable for different applications such as electric bikes, scooters, or solar setups. Its lightweight nature also contributes to the overall efficiency and portability of the devices it powers.

How do you connect the balance leads correctly?

Connecting the balance leads of the DALY BMS 21S requires attention to detail to ensure proper functionality. Each lead corresponds to a cell in your battery pack; thus, an accurate connection is essential. Follow the provided manual for the correct wiring sequence, ensuring that leads from the BMS align with each cell in the stack. Proper connection helps maintain cell balance and optimizes battery performance during charging and discharging cycles.

Is this BMS suitable for solar energy systems?

Yes, the DALY BMS 21S is quite suitable for solar energy systems that utilize lithium battery packs. Its protective features ensure that the batteries can efficiently store and release energy while preventing damage from overcharging, which can be particularly important during peak sunlight hours. This makes it an excellent choice for solar enthusiasts who wish to optimize their battery pack's performance while ensuring long-term reliability and safety.

What happens if the BMS overheats?

If the DALY BMS 21S begins to overheat, it is designed to trigger automatic protection protocols. This includes disconnecting the battery from the load or charger to prevent damage. Overheating can typically occur due to excessive current draw or inadequate ventilation around the BMS. Ensuring proper installation in a cool, ventilated area can significantly reduce overheating risks and contribute to the longevity of both the BMS and the connected battery pack.

Where can I buy the DALY BMS 21S 72V 20A Li-ion Battery Protection Module in Nigeria?

You can purchase the DALY BMS 21S 72V 20A Li-ion Battery Protection Module at Ubuy. They offer a range of electronic components, ensuring you can find this specific battery management system along with other necessary parts for your project. Ubuy provides a convenient shopping experience, making it simple for you to equip yourself with quality components tailored to your needs.

How to Shop DALY BMS 21S 72V 20A Li-ion Battery Protection Online From Ubuy?

It’s easy to shop DALY BMS 21S 72V 20A Li-ion Battery Protection online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location.

Is DALY BMS 21S 72V 20A Li-ion Battery Protection Available to Shop Online in Nigeria?

Yes, at Ubuy Nigeria this product is available for you to shop at a reasonable price. The DALY BMS 21S 72V 20A Li-ion Battery Protection is not available locally but you can trust us with our express shipping services.

How Long Does It Take to Get Product After Placing the Order?

The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

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DALY BMS maximizes lithium battery performance and extends battery lifetime.

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Item #: 117605575

DALY BMS 21S 72V 20A Li-ion Battery Protection Module PCB Protection Board with Balance Leads Wires BMS for Lithium 18650 Battery Pack

98% of respondents would recommend this to a friend

Item #: 117605575

NGN 82369

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What Stands Out

Advanced Protection

Ensures optimal safety with overcharge, over-discharge, and short-circuit protection, safeguarding your lithium battery investment and enhancing longevity.

Balance Charging

Features balance leads for even charging of cells, promoting battery efficiency and performance, extending the overall lifespan of the battery pack.

Versatile Compatibility

Designed for 18650 lithium batteries, the module's adaptable design allows integration into various battery configurations, serving a broad range of applications from DIY projects to electric vehicles.

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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?

DIY Battery Builders
Ideal for enthusiasts assembling lithium battery packs who need reliable overcharge and discharge protection.
Electric Bike Owners
Great for electric bike enthusiasts seeking to protect and enhance battery lifespan with superior management features.
Renewable Energy Users
Perfect for solar energy systems requiring efficient management of lithium batteries for optimal performance.

Beginner Users
Not suitable for those unfamiliar with electronics or battery management systems, as setup may be complex.

Product Description

DALY BMS 21S 72V 20A Li-ion Battery Protection Module PCB Protection Board with Balance Leads Wires BMS for Lithium 18650 Battery Pack

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Question: How to Shop DALY BMS 21S 72V 20A Li-ion Battery Protection Online From Ubuy?

Answer: It’s easy to shop DALY BMS 21S 72V 20A Li-ion Battery Protection online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location.
Question: Is DALY BMS 21S 72V 20A Li-ion Battery Protection Available to Shop Online in Nigeria?

Answer: Yes, at Ubuy Nigeria this product is available for you to shop at a reasonable price. The DALY BMS 21S 72V 20A Li-ion Battery Protection is not available locally but you can trust us with our express shipping services.
Question: How Long Does It Take to Get Product After Placing the Order?

Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

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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.
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Features & Benefits

Optimizes performance of lithium batteries.
Extends battery lifetime significantly.
Provides double protection with patented technology.
Features waterproof, dustproof, shockproof, and anti-static design.
Easy installation for effortless electrical connections.
Includes comprehensive customer support and technical assistance.

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DALY BMS 21S 72V 20A Li-ion Battery Protection Module PCB Protection Board with Balance Leads Wires BMS for Lithium 18650 Battery Pack

NGN 82369

Fast Shipping

Free Return*

Secure Packaging

100% Original Products

PCI DSS Compliance

ISO 27001 Certified

What Stands Out

Product Details

Dangerous Goods

Who Should Buy?

Product Description

Customer Questions & Answers

DALY Power Converters Editorial Review

Customer Reviews & Ratings

Review this product

Product Price History

Important information

NGN 82369

Features & Benefits

Ubuy Assurance

Fast
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Return^*