12S 13S 14S 15S 36V 48V 58.8V smart Bluetooth BMS with 20A to 60A constant discharge current with UART and RS485 communication


1) Application:this smart BMS can work for 12S to 15S Lithium ion or Lifepo4 Battery with UART communication ,if client need the dual communication type , please click here :>12S 13S 14S 15S 36V 48V 58.8V smart Bluetooth BMS with 20A 30A 40A to 60A constant discharge current with UART and RS485 Dual communication

client can choose based on your battery chemistry features
2) Current : constant current of this version BMS can be made with 20A to 60A in accoridng to the different demand
3) Dimension: :Max 130*63*10mm (for less than 30A current ,and Max130*63*17mm for more than 30A Current

4) Our BMS will include a free connection cable with connector and with a Bluetooth Communication module . client can choose the PC Communication module separately based on your demand by selecting it from the dropdown list
4) Functions : except basic protection function , this BMS has ON/OFF switch ,PC and APP communication function.
5) Communication type :UART and RS485
7) In order to support our custom with certain quantity , our client can use this coupon code to get better cost :
     200USD~500USD:  coupon code:   20200806
     500USD~1000USD: coupon code : 20200807
     1000USD above:   Coupon Code :  20220808

6) We will ship out within 4~5 working days as we promised in according to client selected shipment methods strictly for few pcs sample orders , we will advise buyer the tracking number once it has been shipped , please know it kindly in advance 



Notes:all of our Smart BMS with Bluetooth function will equip a Bluetooth Communication module only , and buyer can choose the PC communication Module separately if needs ,please know it kindly in advance ,all orders will be dispatched within 4~5 days without problems .

We have Dual Communication type also available for selection hereby with RS485 and UART communication

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 130*63*10mm or 130*63*17mm
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 .
And we can design and produce Battery protection circuit board in according to client’s demand with certain
reasonable order quantity .
Specification reference for different cells with different chemistry materials :
this BMS works from 11S 12S 13S 14S 15S li ion or Lifepo4 Battery pack with Bluetooth UART or RS485 communication
smart Blueooth BMS with 20A 30A 40A 60A constant current

A.Mobile Phone APP Display and how to set parameters via APP software with the Bluetooth  Communication module as below.

Bluetooth Module
Mobile APP display page for our smart BMS with bluetooth function

APP software display

B .With the PC communication Module as Below ,we can set parameter on PC software like this :

Computer software dispaly

Photo display

11S 12S 13S 14S 15S Li ion or Lifepo4 Smart Bluetooth BMS with 20A to 60A constant current


Notice of connection  :

A. Firstly ,Please connect bold wires from B- port of the BMS to the negative port of the battery pack .(B- wire should be as short as possible ) ,then connect these voltage detection wires (Please take off these wires from the BMS before connecting these wires to the battery to avoid any connection mistakes )

B. Second ,Please start connect these balance wires to the Battery system from BC0 ,Black thin wire should be connected to the battery negative , and the second wire -white wire BC1 should be connect to the positive port of the first series cell . BC2  should connect to the positive port of second series cell ,and BC3 wire to the third cell’s positive ….connection in this way in order one by one till to the last cell postive port

C. Third . After connection of these balance wires finished , please measure connector voltage from each Neigbouring wires ,the voltage between each neigbouring wires for Li ion battery should be less than 4V and for Lifepo4 Battery should be less than 3.5V ,after confirmation of these wires connection order , you can plug cable connector into the BMS .–wrong connection order will damage our BMS surely . please be carefully with this step .

D. Finally , connect C- wire as negative of charge and discharge , B+ wire as positive of charge and discharge , those wires should

use bold wire to make connection for large current distribution purpose . then please comparing the voltage from the BMS and voltage directly from the Battery to see if they are the same or not . if they are the same value . your connection is correct , otherwise terrible things will happened !!!

Our BMS advantages VS other company’s

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 0.2 kg
Dimensions 13 × 10 × 15 cm
Specification selection

12S 36V Lifepo4 20Awith UART, 12S Lifepo4 30A with UART, 12S Lifepo4 40A with UART, 12S Lifepo4 60A with UART, 12S Li ion 20Awith UART, 12S Li ion 30A with UART, 12S Li ion 40A with UART, 12S li ion 60A with UART, 13S 48V li-ion 20A with UART, 13S li-ion 30A with UART, 13S li-ion 40A with UART, 13S li-ion 60A with UART, 14S li-ion 58.8V 20A with UART, 14S li-ion 30A with UART, 14S li-ion 40A with UART, 14S li-ion 60A with UART, 15S li-ion 20Awith UART, 15S li-ion 30Awith UART, 15S li-ion 40A with UART, 15S li-ion 60Awith UART, 15S Lifepo4 30A with UART, 15S Lifepo4 40Awith UART, 15S Lifepo4 60Awith UART, PC Communication Module