Smart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMS

Model NO.
LWS-20S40A-375
Over Current Protection
120+-20A
Base Material
Fr-4
Certification
RoHS, ISO
Layers
Multilayer
Mode of Production
SMT
Over Charge Protection Voltage
3.75V /4.25V
Balance Voltage
3.6V/ 4.2V
Rated Voltage
36V /42V
Over Discharge Protection Voltage
2.2V/2.75V
Discharge Current
20A/30A/40A
Balance Current
72mA/ 84mA
Charge Current
20A/30A/40A
Transport Package
Anti-Static Bag Packaging/ Carton Packaging
Specification
120*65*10mm
Trademark
LWS
Origin
China
HS Code
8536300000
Production Capacity
5000PCS/Month
Package size per unit product
13.00cm * 6.50cm * 2.00cm
Gross weight per unit product
0.300kg
Lead Time
7 days (1 - 6 Pieces)
To be negotiated ( > 6 Pieces)
Reference Price
$ 13.50 - 19.44
Contact Us

Product Description

Smart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMS.

This product is designed to revolutionize the way you manage and protect your electric bicycle battery pack, ensuring optimal performance and longevity.

With the increasing popularity of electric bicycles, it is crucial to have a reliable battery management system in place. Our Smart 20s BMS is the perfect solution, offering advanced circuit board protection and a powerful 72V 40A BMS. This means that your battery pack will be safeguarded against overcharging, over-discharging, and short circuits, ensuring the safety and durability of your electric bicycle.

The circuit board protection feature of our Smart 20s BMS is a game-changer. It acts as a shield, preventing any potential damage to the battery pack caused by voltage spikes or fluctuations. This not only extends the lifespan of your battery but also enhances its overall performance, allowing you to enjoy longer rides without worrying about sudden power failures.

Furthermore, the 72V 40A BMS provides efficient and reliable power management. It ensures that your electric bicycle battery pack operates at its optimal capacity, delivering consistent and powerful performance. Whether you are commuting to work or embarking on an adventurous off-road journey, our Smart 20s BMS will ensure that your electric bicycle is always ready to go the extra mile.

We understand the importance of quality and reliability when it comes to battery management systems. That is why our Smart 20s BMS is meticulously designed and rigorously tested to meet the highest industry standards. You can trust that our product will deliver exceptional performance and durability, allowing you to enjoy a seamless and worry-free electric bicycle experience.

In conclusion, the Smart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMS is the ultimate solution for anyone seeking to enhance the performance and longevity of their electric bicycle. With its advanced features and robust design, this product is a must-have for electric bicycle enthusiasts. Invest in the Smart 20s BMS today and take your electric bicycle experience to new heights.


Smart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMSSmart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMSSmart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMSSmart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMS
Electric Switch, Temperature Switch, Passive Balance, Active Balance, 5V output, NTC and etc., if you need any above accessories, please must to contact our sales fisrt. All items could be customized as your requirements,if without any requests after order placed, we will produce as specification in details page.
Li-ion Product Specifications-LWSSmart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMS
Smart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMSProduct  parameters(example:LFion-13S)supplement
15A25A30A40A100A200A
About your
 products,  just tell
 us the rated 
voltage / current 
or application etc
,we will help
 to recommend
the most suitable
 products for you.
CurrentMaxi mal continuous
charging current		15A25A30A40A100A200A
 Maxi mal continuous
Discharging current		15A25A30A40A100A200A
Over current
protection		Over current detection current80±20A120±20A120±20A120±20A300±50A600±100A
ResistanceProtection circuitry
(MOSFET)		≤20mΩ≤20mΩ≤20mΩ≤20mΩ≤20mΩ≤20mΩ
CurrentCurrent consumption≤20μA≤20μA≤25μA≤25μA≤20μA≤50μA
VoltageCharging voltageDC:54.6V CC/CV 4.2/cell
Balance voltage for single cell4.25±0.025V
CurrentBalance Current for
single cell		42±5mA
Over charge
Protection 
 		Over charge detection voltage for single cell4.25±0.025V 
Over charge detection delay time500mS-1500mScustomizable
Over charge release voltage for single cell4.15±0.05Vcustomizable
Over discharge
prodectiom		Over discharge detection volage for singlecell2.75±0.08Vcustomizable
Over discharge detection delay time500mS-1500mScustomizable
Over discharge release voltage for single cell3.0±1.0Vcustomizable
Over Current ProtectionOver Current detection voltage0.1±0.025Vcustomizable
 Release conditionCut load,Automatic recovery 
Short protectionDetection conditionExterior short circuit 
Detection delay time200-500uScustomizable
Release conditionCut load,Automatic recovery 
TemperatureOperating Temperature Range-20~+65ºCcustomizable
Storage Temperature Range-20~+85ºCcustomizable
 
Lifepo4 Product Specifications-LWSSmart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMS
Smart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMSProduct  parameters(example:LFion-13S)supplement
15A25A30A40A100A200AAbout your products,     just tell us the rated         voltage / current or application etc,we will help  to recommend the most suitable products for you.
CurrentMaxi mal continuous
charging current		15A25A30A40A100A200A
 Maxi mal continuous
Discharging current		15A25A30A40A100A200A
Over current
protection		Over current detection current80±20A120±20A120±20A120±20A300±50A600±100A
ResistanceProtection circuitry
(MOSFET)		≤20mΩ≤20mΩ≤20mΩ≤20mΩ≤20mΩ≤20mΩ
CurrentCurrent consumption≤20μA≤20μA≤25μA≤25μA≤20μA≤50μA
VoltageCharging voltageDC:46.8V CC/CV 3.6/cell
Balance voltage for single cell3.60±0.025V
CurrentBalance Current for
single cell		36±5mA
Over charge
Protection 
 		Over charge detection voltage for single cell3.90±0.025V 
Over charge detection delay time0.5S-2Scustomizable
Over charge release voltage for single cell3.80±0.025Vcustomizable
Over discharge
prodectiom		Over discharge detection volage for singlecell2.00±0.05Vcustomizable
Over discharge detection delay time10mS-200mScustomizable
Over discharge release voltage for single cell2.50±0.05Vcustomizable
Over Current ProtectionOver Current detection voltage0.10±0.015Vcustomizable
 Release conditionCut load,Automatic recovery 
Short protectionDetection conditionExterior short circuit 
Detection delay time200-500uScustomizable
Release conditionCut load,Automatic recovery 
TemperatureOperating Temperature Range-40~+65ºCcustomizable
Storage Temperature Range-40~+125ºCcustomizable
 
 
Smart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMS
 
Smart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMS
 
Smart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMS
 
Smart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMS
 
Smart 20s Battery Management System for Electric Bicycle Battery Pack with Circuit Board Protection and 72V 40A BMS
 

3.FAQ
Q: How do I judge what material my battery is ?
A: Please take a look at the battery body.if the normal voltage of your battery shows as 3.2V,the battery will be LiFePo4.If the normal voltage of your battery shows as 3.6V or 3.7V, the battery will be Li-ion or Li-polymer battery. you can also ask battery manufacturer the material of battery.

Q: Can I use this protection circuit board for my battery?
A: Can use this protection circuit board, or not?
There are 2 questions:
How much cells in series is your battery pack?
The protection circuit board you need to buy must be same cells in series as your battery pack.

Q: What material is your battery?
A:Only the LiFePo4 battery has different electric parameter from other battery, so if you need buy the protection circuit board for LiFePo4 battery , Please let us know firstly.

Q: Do we need cell balance or not?
A: The function of balance : Since battery is made of many pcs of cells in parallel and in series, the cells can't be the same as no two people in the world is the same , so can only put in group with similar performance is not without balance function

Q: Do you have Minimum Order Requirement (MOQ)?
A: No, We don't have MOQ, Different customer have different requirement ,We can provide various capacity and size as per your requirements,Also ODM / OEM is welcome.

About your products, just tell us the relative voltage/ cells/ current A or equipment etc,we will help to recommend the most suitable products for you.




 
 

 

Battery Management System

PNEUTEC.IT, 2023