- Home Page /
- Tools & Home Improvement /
- Building Supplies /
- Building Materials /
- Doors /
- Garage Doors, Openers & Parts /
- Hardware /
- Circuit Boards /
- 3S 4S 5S 3.2V 3.7V BMS 12V 21V 100A Li-Ion LM...
0 ratings
Item #:
111754272
3S 4S 5S 3.2V 3.7V BMS 12V 21V 100A Li-Ion LMO Ternary Lithium Bottery Protection Circuit Board Li-Polymer Balance Charging New for Arrival 2025 High
94% of respondents would recommend this to a friend
Item #:
111754272
TMT 88
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Monday, October 12
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
Absolute satisfaction guarantee, if you are not satisfied with the product we will gladly support 100% of the product value.
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
Versatile Compatibility
Accommodates multiple battery configurations like 3S, 4S, and 5S, ensuring versatility for different Li-Ion setups and enhancing adaptability for various applications.
High Current Support
Rated for 100A, this BMS offers robust performance and reliability, making it ideal for high-demand applications while ensuring safe operation even under heavy loads.
Advanced Safety Features
Equipped with advanced protection mechanisms for overcharge, over-discharge, and short circuit, ensuring utmost safety while prolonging battery lifespan and maintaining performance.
Product Details
| Item Weight | 0.5 lbs (230 grams) |
Who Should Buy?
-
Electric Vehicle Owners
Ideal for users needing reliable battery management systems for electric vehicles ensuring longevity and performance.
-
DIY Battery Projects
Useful for hobbyists or engineers creating custom battery packs for renewable energy projects or robotic applications.
-
High C-Rate Applications
Beneficial for applications that require high discharge rates, like drones or RC vehicles needing reliable power and protection.
-
Casual Users
Not suitable for general users who do not have technical skills for installation and calibration of battery systems.
Product Description
3S 4S 5S 3.2V 3.7V BMS 12V 21V 100A Li-Ion LMO Ternary Lithium Bottery Protection Circuit Board Li-Polymer Balance Charging New for Arrival 2025 High for Quality
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is a BMS and why do I need it for my battery?
Answer: A Battery Management System (BMS) is crucial for protecting your lithium-ion batteries from overcharging, excessive discharging, and short circuits. It ensures the longevity and safety of the batteries in your devices. For instance, if you're using a 3S or 4S battery pack in a drone, a BMS will keep the cells balanced during charging and discharging, preventing any single cell from being damaged. This is essential for maintaining performance and safety. -
Question:
What are the key features of this 3S 4S 5S BMS board?
Answer: This BMS board supports various configurations (3S, 4S, and 5S) with nominal voltages of 3.2V and 3.7V and is capable of handling up to 100A. Key features include short-circuit protection, overcharging and over-discharging safeguards, and cell balancing for optimal performance. This makes it ideal for applications such as e-bikes or solar energy storage, where reliability and efficiency are paramount. -
Question:
Can this BMS board be used with Li-Polymer batteries?
Answer: Yes, this BMS board is compatible with Li-Polymer batteries as well as Li-Ion batteries. Both battery types require similar management protocols to ensure safe operation and performance. For example, whether you're constructing a power source for a remote-controlled vehicle or a portable power bank, this BMS can effectively manage the charging and discharging cycles to optimize battery life. -
Question:
How does this protection circuit board balance charge batteries?
Answer: The circuit board balances charging by distributing voltage evenly across the battery cells, preventing any cell from becoming overcharged or undercharged. This is particularly beneficial in setups where multiple cells are connected in series, such as in electric scooters. By ensuring that each cell is charged to the same voltage, you enhance the efficiency and longevity of your battery pack. -
Question:
What applications are suitable for the 12V and 21V configurations?
Answer: The 12V and 21V configurations suit a variety of applications such as electric bicycles, robotics, and DIY energy projects. For example, if you're building a 12V power system for an electric bike, this BMS will ensure safe operation during use. Similarly, the 21V configuration can be utilized in larger power systems for optimal energy management. -
Question:
Is this product suitable for beginners in battery building?
Answer: While it’s designed for versatility, beginners may find certain technical aspects challenging. Understanding the basics of battery systems and safety precautions is recommended to ensure proper installation. For instance, if you are new to DIY electric projects, consider starting with a simple battery pack and seeking guidance on integrating the BMS to maximize safety and efficiency. -
Question:
What advantages does the ternary lithium battery offer?
Answer: Ternary lithium batteries, which combine lithium nickel, cobalt, and manganese, offer higher energy density and improved thermal stability compared to other lithium alternatives. These advantages make them suitable for performance-intensive applications like electric vehicles and energy storage systems. When paired with this BMS, they provide reliable power with effective management for various electronic devices. -
Question:
How do I install this BMS in my battery pack?
Answer: Installation involves connecting the BMS to the battery cells according to the wiring diagram provided in its manual. The positive and negative terminals of each cell should be connected properly to ensure accurate voltage readings. For example, if you're assembling a battery pack for a drone, meticulous wiring is critical for safe and efficient operation. Ensure all connections are secure to prevent any failures during use. -
Question:
Where can I buy the 3S 4S 5S BMS circuit board?
Answer: You can buy the 3S 4S 5S 3.2V 3.7V BMS 12V 21V 100A Li-Ion LMO Ternary Lithium Battery Protection Circuit Board at Ubuy. Ubuy offers a wide range of electronic components and products, ensuring you can conveniently find what you need for your battery projects. -
Question:
What should I consider when selecting a BMS for my project?
Answer: Consider factors such as the number of cells in series (S), the maximum current rating, and compatibility with your specific battery chemistry. For instance, if you're designing a system that demands high energy output, choose a BMS with a higher current rating like the 100A offered here. Additionally, ensure that the BMS can handle the voltage requirements of your project to prevent any operational issues.
TGEINHVDU Circuit Boards Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
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.
TMT 88
Order now and get it around Monday, October 12
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
- High-quality electronics components for reliable performance.
- Reasonable prices make our products accessible.
- Worldwide shipping available for all customers.
- User-friendly design ensures easy installation and use.
- Versatile applications across industrial, automotive, and household uses.
- Exceptional customer support ready to assist you.
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.