6S 7S 8S 10S Lithium ion or Lifepo4 Battery 29.4V 42V 33.6V 29.2V Smart Bluetooth BMS with RS485 and UART Communication function


1) Application:this smart BMS can work for 6S to 10S 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 20A to 60A in accoridng to the different demand
3) Dimension: :Max 140*60*10mm (for less than 30A current ,and Max140*60*15mm 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
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 
7) If you have any questions ,please contact us via this email please : james@lithiumbatterypcb.com thanks 


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 .

1) Introduction and Features

This is a Smart protection board specially designed for battery packs of.It can be applied to lithium batteries with different chemical properties, such as lithium ion, Li-polymer. Lithium iron phosphate, etc. The protection board has strong loading capacity and the maximum continuous discharge current can reach 60A.

  • 6s 7S 8S 10S series cell protection for Lithium Battery pack (7*4.2=29.4V 8*3.65=29.2V Lifepo4 battery pack ),client can select suitable type based on your battery characteristics
  • Various protection functions for charging and discharging ( over-charge , over-discharge ,high or Low temperature protection ,over-current protection , short circuit protection etc ) with double layers protection hardware and software protection .
  • Precise SOC calculation with SOC function of automatic learning
  • Automatically charge battery function or static balance function for the battery system
  • Equipped with Bluetooth module with isolated UART or UART&RS485 communication which can enable the user to view battery information on our APP or Computer software which can be provided by us .client can use the PC software to set the protection parameters flexibly,client can download software with our appointed link .
Specification reference for different cells with different chemistry materials :

 Default Parameters setting :

Specification as below is our defaul setting value , clinet can use the PC module to set them on yourside without

problems .if you want us to set it , you can leave a message to us based on your battery specification without problems

Product List

Our Smart BMS with Bluetooth function will include free Bluetooth module and connection cables .if client needs PC communication module , you can buy it separately without problems

6S 7S 8s 9S 10S li ion or Lifepo4 Battery Smart Bluetooth BMS

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

What Bluetooth Communication Module can do ?

With Bluetooth Communication Module , the APP Software can be connected , and all information of the BMS can display on your Mobile Phone .  and you can set some parameters on Your APP software :Over-protection voltage , Over-discharge protection voltage Rlease voltage of over-charge and discharge .

Mobile APP display page for our smart BMS with bluetooth function

APP software display

IOS APP display content for our Smart BMS

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

What PC communication Module can do ?

With PC communicaton module , you can set some basic protection parameters the same with APP software ,

and besides the setting scope , PC Module will extended the parameters setting ,such as battery series setting

Cell’s voltage calibration . some battery information input in according to the below pictures, client can choose

the PC Communication module flexibly in according to your practical application purpose 

Computer software dispaly

Photo display

This BMS has UART and RS485 communication , it supports 20A 30A 40A 60A constant current for 6S 7S 8S 24V 18650 or NCM battery Pack
8S 6S Lifepo4 Battery smart Bluetooth BMS 29.2V power battery protection circuit board
6S 7S 8s 9S 10S li ion or Lifepo4 Battery Smart Bluetooth BMS

Connection diagram and instructions :

7S ,8S and 10S connection diagram

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 Neighbouring wires ,the voltage between each neighbouring 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 happend !!!

Our BMS advantages VS other company’s

Transaction terms :
1) Shipment time : once received your order ,we will proceed it quickly within 3~4 working days without problems .order can be cancled within these days ,otherwise we will reject to cancle the order ,because our items can not get back when in the process of shipment . we will inform our buyer if  there is a stock problems with the order and arrange a properly agreenment on the shipment schedule by email .

2) Shipment Methods : Client can choose suitable shipment methods based on your demand ,Post air parcel service or Express service , we will ship all orders strictly in according to the selected shipment methods by our customer . normally , Post parcel shipment time takes 7~60days depends on different countries serivce . and express takes 2~15days to the destination normally .

3) About Tracking number : Tracking number will be uploaded and will be informed by the registered email on each Friday ,please pay attention to your email later on for the tracking number update .

4) Quality Service : we will take a full responsibility for any defect product caused by our design and production problems ,warranty time is 12 months since the shipment date . but for any defect product caused by any wrong or slavery application from customers . we will not take the responsibility for that , because for this BMS product ,it do need some skills to make installation . please consult us in advance if you are not clearly with bms connection in the hope of avoid any mistakes of connection . if Buyer damaged the BMS , we can offer the free repairing service to our client , but client should take care of shipment cost .please know it kindly in advance . thanks


Additional information

Weight 0.2 kg
Dimensions 13 × 10 × 15 cm
Specification selection

8S 24V Lifepo4 20A with UART &RS485, 8S Lifepo4 30A with UART &RS48, 8S Lifepo4 40A with UART&RS48, 8S Lifepo4 60A with UART&RS48, 6S Li ion 20A with UART&RS48, 6S Li ion 30A with UART&RS48, 6S Li ion 40A with UART&RS48, 6S li ion 60A with UART&RS48, 6S Lifepo4 20A with UART&RS48, 6S Lifepo4 30A with UART&RS48, 6S Lifepo4 40A with UART&RS48, 6SLifepo4 60A with UART&RS48, 7S 24V li-ion 20A with UART&RS48, 7S li-ion 30A with UART&RS48, 7S li-ion 40A with UART&RS48, 7S li-ion 60A with UART&RS48, 10S li-ion 36V 20A with UART&RS48, 10S li-ion 30A with UART &RS48, 10S li-ion 40A UART &RS48, 10S li-ion 60A with UART&RS48, 8S li ion 60A with UART&RS48, 8S li-ion 20A with UART&RS48, 8S li-ion 30A with UART&RS48, 8S li-ion 40A with UART&RS48, 8S li-ion 60A with UART &RS48, PC RS485 Module