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Smart Bluetooth 4S 12V 30A Battery Management System BMS

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China Deligreen Power Co.,ltd certification
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Smart Bluetooth 4S 12V 30A Battery Management System BMS

Smart Bluetooth 4S 12V 30A Battery Management System BMS
Smart Bluetooth 4S 12V 30A Battery Management System BMS Smart Bluetooth 4S 12V 30A Battery Management System BMS

Large Image :  Smart Bluetooth 4S 12V 30A Battery Management System BMS

Product Details:
Place of Origin: china
Brand Name: Deligreencs
Certification: CE/UL/ROHS/FCC
Model Number: lifepo44S12V30A
Payment & Shipping Terms:
Minimum Order Quantity: 1
Packaging Details: carton
Delivery Time: 15 days
Payment Terms: D/A, D/P, T/T, Western Union
Supply Ability: 1000 pcs/day

Smart Bluetooth 4S 12V 30A Battery Management System BMS

Charge Voltage: 14.6V Charge Current: 15A
Over Charge Volt: 3.75±0.025 Over Charge Volt Protect Delay: 1
Over Charge Volt Release: 3.55±0.05 Constant Discharge Current: 30A
Over-discharge Current Protection: 100±20
High Light:

44S12V30A Battery Management System BMS


Deligreencs 30A Battery Management System BMS


Deligreencs 30A lto battery bms

Smart BMS bluetooth Lithium Battery Management System 4S12V 30A





What is 4S12V 30A Common Port  BMS?


This is a smart battery management system,which monitor and control the status of the batteries&battery pack.It's a lifepo4 battery BMS,4 batteries in series,12V,30A current.common port.

The battery can be in surveillance on your phone,through which you can watch the current,voltage,over current,over voltage etc of the batteries.It is connected by the bluetooth of the BMS.Smart BMS is more convenient than the hardware BMS.

Smart Bluetooth 4S 12V 30A Battery Management System BMS 0


Datasheet for 3.2V LifePO4 BMS( 10A-60A )
  Content Spec Unit Remark
10A 15A 20A 30A 40A 50A 60A A  
Discharge Constant discharge current 10 15 20 30 40 50 60 A  
Over-discharge current protection 30±5 50±5 60±10 100±20 120±20 150±30 180±30 A  
Charge Charge voltage Series No.* 3.65 V  
Charge current 5 8 10 15 20 25 30 A Common port
Charge current 8A as default A Separate port
Over charge protection Overcharge volt 3.75±0.05 V  
Overcharge volt protect delay 1 S  
Over charge volt release 3.55±0.05 V  
Power balancing Power balance volt 3.5 V  
Balance release volt 3.5 V  
Balance current 30±5 mA  
Over discharge protection Over discharge detect volt 2.2±0.05 V  
Over discharge detect delay 1 S  
Over discharge volt release 2.7±0.05 V  
Over current protection Over current detect delay 1 MS  
Over current protect release Off load    
Short circuit protection Short circuit protection External load short circuit    
Short circuit detect delay 250 uS  
Short circuit detect release Disconnect load    
Temperature protection Temp protection charge<0℃, discharge>70℃ Need extra customization
Resistance Main circuit resistor ≤20  
Self-consumption Working current ≤100 uA  
Sleepy current(when battery is over discharged ) ≤20 uA  
Working temp Temp range -20~70  
Storage temp Temp range -40~80  




Connection diagram

Smart BMS 4S LIFEPO4 12V BMS,ranges 30A-50A,common port,separate port.This is the connection diagram for your wiring.


Smart Bluetooth 4S 12V 30A Battery Management System BMS 1


1, PIs do not insert balance wires into BMS before connecting batteries, must make sure connecting with batteries correct.

2, The sequence of connecting wires for BMS:

Notes: PIs ensure to use balancing wires from Daly!

1. From thin black balance wire to start, the 2nd wire(thin red wire) connect with the 1st battery's positive pole. Then connect each ell's positive pole in order until the last one B+;

  • Do not insert the connector directly after the wires were connected. Measure the voltage between two adjacent metal terminals on the back of the connector. If it is Li-ion battery, the voltage should be between 3.0 ~ 4.2V, Lifepo4 battery should be between 2.0 ~ 3.6V, and LTO battery should be between 1.5~ 2.75V;
  • After the wiring sequence and voltage are confirmed to be correct, then insert into BMS; .
  • Adjust the multimeter to the buzzer position and measure the internal resistance between B - and P -when the internal resistance is 0, there will be a beep, which means that the BMS is good. Otherwise,do not weld and contact the customer severice.;
  • The last step to connect B-(thick blue wire) with battery pack's total negative pole.

After finished wiring:

Measure whether the B + and B-voltage and B + and P-voltage of the battery are equal, If yes, it means the BMS works normally and can be used. If not, please recheck according to the above wiring sequence.



Smart Bluetooth 4S 12V 30A Battery Management System BMS 2


About US

Changsha Deligreen Power Co.LTD,founded in 2010,is a "Green Energy Solution Service Provider".

Newest technology,new idea,hard-working and honest people.

Focus on lithium rechargeable battery,BMS,Balancer,charger and relative products.

BMS is one of best sellers,we've been receiving thousands of good comment from our clients because of its good quality and function 



What is battery management system BMS?

Deligreen BMS is defined as an electronic system that manages a rechargeable battery(lithium phosphate,NCM battery,single cell or battery pack) by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and/or balancing it.


Why do we need battery management system?

Battery Management Systems are the brains/CPU behind battery packs. They manage the output, charging,discharging and provide notifications on the status of thebattery pack. They also protect the batteries from damage.



The separate parts of smart BMS


  • Two wheels style heatsinks
  • Wave style heatsink
  • High current board(with 3mm pure copper port)
  • Thermally conductive silica gel
  • Pure aluminum heatsink



Q:What battery types do your BMS work with?

A:Our BMS can work for lithium phospate battery(Lifepo4)and NCM battery,lithium ion battery,ple let us know what your battery type before placing order.


Q:What BMS range can you supply?

A:Deligreen is a professional BMS supllier with abundant BMS range.Series from 3S-32S,Current from 10A-500A,if you need more series,pls contact us.


Q:How to choose the BMS that I need?

A:You need to make sure of following

   1.battery type

    2.charge current

    3.discharge current

    4.battery pack(series,parallel)

    5.Peak discharge current


Q:Can I watch the battery status from my mobile phone?

A:Yes,this is waht a samrt BMS do,you can watch the status of your batteries in your APP throush bluetooth connected between phone and the BMS.






Contact Details
Deligreen Power Co.,ltd

Contact Person: Leo Zeng

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