20S 21S 22S 23S 24S 25S 26S 27S 28S 29S 30S Lithium Battery smart BMS with current of 40A to 100A constant for electric vehicle Battery Pack



1) Application:this smart BMS can work for 20S to 30S Lithium ion or Lifepo4 Battery ,client can choose based on your battery chemistry features
2) Current : constant current of this version BMS can be made with 40A to 100A in accoridng to the different demand
3) Dimension:180*110*15mm
4) Functions : except basic protection function , this BMS has ON/OFF switch ,PC and APP communication function.
5) Communication type :UART



1) Characteristics : this is a smart BMS with Bluetooth and PC communication which will be used to protect and monitor your battery status visible from the computer and your android APP phone .
discharge current and charging current .the charge and discharge port is same . Size :Max 180*110*15mm
2) Protection functions :
This BMS has applied with high quality IC chip specially for lithium battery protection purpose .highly detection
precision degree on over-charge,over-discharge,voltage balancing ,and with detection on wires disconnection functions,
with three layers of over-discharge and over-current detections and delay times in detecting process.( Over-current 1,
over current 2,short cicircuit protection ) . short-circuit of charging port ,with two layers protection against over-voltage when charging :
3) With Mobile phone operation software systme to manage the detecting the battery working status and some parameters
setting . also this board can be available for the PC operation and Parameters setting on the computer .
4) This BMS will includes such list :
with one Bluetooth module for Android system only ,4.3Version Above . with wire and connector for the Battery and
Software system of mobile phone will be sent to the buyer .
5) This BMS has leave a SW swtich for ON/OFF button connection .
And we can design and produce Battery protection circuit board in according to client’s demand with certain
reasonable order quantity .
Mobie Phone APP Display and how to set parameters via APP software.APP software displayPC communication and parameters display pages :

Photo display
This BMS can be made for 20S 21S 22S 23S 24S 25S 26S 27S 28S 29S 30S Lithium or Lifepo4 Battery with constant current of
40A to 100A

this BMS will including such accessories ( PC and Bluetooth communication module)
PC communication adapter
Bluetooth Module
For the connection please take a reference to our other link . thanks
Reminds : We will send the detail connection drawings to the client with this product if client needs and this BMS will includes all necessories connectors with wire to make sure client can connect it easily . please follow up it correctly to avoid of any mistake ,above connection is only for simple explaination purpose .
1)Do not apply the PCB which beyonds the specified criterias as above :
2)Sometime , the battery may not discharge when connected this PCB , please connect it to the charge and it can recover to the normal status .
3)The PCB may not work normarly When Mixing cells which were over-discharged or over-charged ,
4) Do not shock this PCB with big static even though the PCB has been designed with anti-stastic protection function.
My distinuished customers : you can contac us through email or skype if you have any further questions with our product
Please choose the shipment way as you like ,you you can consider express delivery way if your order is urgent , but you
should afford the extra freight cost by express delivery .
As post by air ,usually it takes around 20-60 days ,please notice it and do not open the disputes easily before reaching the
contact with us ,we will try our best to solve the problem with our joint efforts .
Return Policy
We guarantee the product from us with a 12 months warranty against defects in quality, but we are not responsible
for buyers’ mistake or wrong handling, our product must be maintained in proper way. If Item is defective and not working
on arrival, please report the item to us within 7 days of receiving the defective product so we can issue a RMA.
Please contact us to request a return authorization. Please include your name, auction number, and reason for return when you
contact us. All items returned must contain all original packaging materials. Please carefully repack the item. Items returned will
be tested and if found defective, the buyer will be shipped a new replacement unit immediately. In the event that a suitable
replacement is not available a refund will be issued.
The return shipment cost should be afforded by buyer if you can not accept our policy ,please do not buy the item from us ,fair deal is importablefor both of us .Feedback
You satisfaction and positive feedback is very importand to us. Pleae leave positive feedback and 5 stars if you are satisfied with our items and services.
If you have any problems with our itmes or services, please feel free to contact us first before you leave negative feedback. We will do our best to solve any problems and provide you with the best customer services.

Additional information

Weight 0.5 kg
Dimensions 10 × 12 × 10 cm
Specification selection

20S Li-ion 40A, 20S li-ion 60A, 20S li-ion 80A, 20S li-ion 100A, 20S Lifepo4 40A, 20S Lifepo4 60A, 20S Lifepo4 80A, 20S Lifepo4 100A, 21S Li-ion 40A, 21S li-ion 60A, 21S li-ion 80A, 21S li-ion 100A, 22S Li-ion 40A, 22S li-ion 60A, 22S li-ion 80A, 22S li-ion 100A, 23S Li-ion 40A, 23S li-ion 60A, 23S li-ion 80A, 23S li-ion 100A, 24S Li-ion 40A, 24S li-ion 60A, 24S li-ion 80A, 24S li-ion 100A, 24S Lifepo4 40A, 24S Lifepo4 60A, 24SLifepo4 80A, 24S Lifepo4 100A, 25S Li-ion 40A, 25S li-ion 60A, 25S li-ion 80A, 25S li-ion 100A, 26S Li-ion 40A, 26S li-ion 60A, 26S li-ion 80A, 26S li-ion 100A, 27S Li-ion 40A, 27S li-ion 60A, 27S li-ion 80A, 27S li-ion 100A, 28S Li-ion 40A, 28S li-ion 60A, 28S li-ion 80A, 28S li-ion 100A, 29S Li-ion 40A, 29S li-ion 60A, 29S li-ion 80A, 29S li-ion 100A, 30S Li-ion 40A, 30S li-ion 60A, 30S li-ion 80A, 30S li-ion 100A, 30S Lifepo4 40A, 30S Lifepo4 60A, 30SLifepo4 80A, 30S Lifepo4 100A


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