4S Lifepo4 Battery bluetooth BMS with 100A or 150Aconstant discharge current for 12V LFP battery pack


1) Application:this smart BMS can work for 4S? Lithium ion or Lifepo4 Battery ,client can choose based on your battery chemistry features
2) Current : constant current of this version BMS can be 100A or 150A
3) Dimension:315*120*10mm
4) Functions : has full sets of protection for Li ion or lifepo4 Battery system
5) Communication type :UART
6) With Bluetooth Function
SKU: SP4S005-100-1-1


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 ,this BMS order? will be dispatched out within 4~5 days without problems .

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 :315*120*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 .

Default specification Reference :

A. APP display for android mobile phone with Bluetooth Communication module .?

Bluetooth Module

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

can not set the parameter for this BMS , we can set it in according to client demand specification without problems )

please know it kindly in advance .

BMS with PC communication module

Computer software dispaly

Photo display

Before BMS installation , please balance your battery ( each cell’s voltage difference should not be more than 0.05V ,inner impedance difference are less than 5m?? ,capacity difference are less than 30mA),and battery initial voltage should not be high as the BMS will be protected and resulted in abnormally work , please discharge your battery to qualified voltage ranges to make BMS installation conditions? .

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 BC1 ,Black thin wire does not need? be connected to the battery negative for this bms , 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 .?Cwrong 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 !!!

1) Shipment : we will ship the item timely when got the buyer payment online within 2~3 Working days in according to the shipment methods selected by Buyer . we will inform the client in advance for the shipment date arrangement if there is any stock issues . Post shipment will takes around 7~45 days to almost of all countries , we will select the best shipment methods to

different country in according the work efficiency records of the logistics , Usually , the Parcel can arrived at buyer hand within one week if you select the shipment By express .

2) Quality warranty time : we will afford the responsibility for the quality defects if it occurs due to our defect production and design ,quality warranty time will be 12 months since the order placement . we will not afford the responsibility for any misuse or slavery application with our BMS products . we can offer the repair service for the buyer in according to such reasons if the Product does not damage seriously . any wrong connection and application will be buyer responsibility , so Buyer should have enough skills of making battery connection ,otherwise it will be nightmare for both buyer and seller , thanks for your kindly understanding .

3) Import duty and tax cost will not covered with this cost I offered online . client should take full responsibility to make custom clearance and pay the import duty if necessary , we will offer support to our buyer to make sure the custom clearance will be smoothly .? we will not afford any extra fee for the import of our product on the buyer side .

4) Return policy : If Buyer does not need our items when got it , please contact us and return them in good conditions without problems . buyer should pack them well and return goods to us in good situation by affording the shipment cost from buyer side to our side .

5) we will not explain how to make connection in details , it will be big jobs for us if we do it one by one ,we will offer connection diagram to the buyer , buyer just follow the instructions clearly to build the battery system . if you have some parts not clearly , you can contact us via this email : james@lithiumbatterypcb.com ,we will give you reply within 24hours except holiday seasons in china . please understand it kindly .?

Additional information

Specification selection

4S lifepo4 100A with Bluetooth Module, 4S lifepo4 150A with Bluetooth Module, 4S Lithium Ion 100A with Bluetooth Module, 4S Lithium Ion 150A with Bluetooth Module, PC Communication Module