Wholesale Multiple Sizes 12V 4s 7A LiFePO4 Bluetooth Battery Balance BMS Board with Temperature Protection

China Wholesale Multiple Sizes 12V 4s 7A LiFePO4 Bluetooth Battery Balance BMS Board with Temperature Protection, Find details about China PCB Design and PCB Assembly, Battery BMS from Wholesale Multiple Sizes 12V 4s 7A LiFePO4 Bluetooth Battery Balance BMS Board with Temperature Protection

Model NO.
LWS-4S7A-030
Type Charging Voltage
14.4V
Balance Voltage
4.2V
Short Circuit Protection Function
Cut Load or Charging Activation
Over Current Protection
20+-5A
Over Charge Protection
3.90V
Over Discharge Protection
2.00V
Temperature Protection
Yes
Type
Flexible Circuit Board
Dielectric
FR-4
Material
Fiberglass Epoxy
Application
Medical Instruments
Flame Retardant Properties
V0
Mechanical Rigid
Rigid
Processing Technology
Electrolytic Foil
Base Material
Copper
Insulation Materials
Epoxy Resin
Transport Package
Anti-Static Bag Packaging/ Carton Packaging
Origin
China
HS Code
8536300000
Model NO.
LWS-4S7A-030
Type Charging Voltage
14.4V
Balance Voltage
4.2V
Short Circuit Protection Function
Cut Load or Charging Activation
Over Current Protection
20+-5A
Over Charge Protection
3.90V
Over Discharge Protection
2.00V
Temperature Protection
Yes
Type
Flexible Circuit Board
Dielectric
FR-4
Material
Fiberglass Epoxy
Application
Medical Instruments
Flame Retardant Properties
V0
Mechanical Rigid
Rigid
Processing Technology
Electrolytic Foil
Base Material
Copper
Insulation Materials
Epoxy Resin
Transport Package
Anti-Static Bag Packaging/ Carton Packaging
Origin
China
HS Code
8536300000
1. Product Description
Wholesale Multiple Sizes 12V 4s 7A LiFePO4 Bluetooth Battery Balance BMS Board with Temperature Protection

About your products,just tell us the relative voltage/ cells/ current A or equipment etc,
We will help to recommend the most suitable products for you. 


Product Advantages:

  • Supply OEM/ODM and custom service
  • High quality with smart balance function
  • Wholesale price
  • ISO9001/ISO14001/CE/ROHS certificates
  • Fast delivery
  • Green product
  • One year warranty
  • Excellent safety performance
  •  Short circuit testing passed
  • Overcharge testing passed
  • Over discharge testing passed
  • Original imported :IC from Japan,MOS from USA,Components from Sumsang.
  •  1.2m drop testing passed
  • 100% testing 
  • Support ODM & OEM services 

 About the battery BMS/PCB/PCM

Function: Detect and protect the battery from over-charge  ,over-dicharge, over-current short-circuit ,temperature detecting protection and auotmatically voltage balance function .

Build with high end electronic components (High End IC and MOSFET ) ,simple structure design will let it have more stable quality working performance , Flexible application
( it can be used for less series battery by leaving some connection pins at empty status ),full set of protection measures let it works well without any infulence from external unexpected accidents.

  
PCM Specifications  For 12.8V (4SLiFePO4 Battery Packs
Model:LWS-4S7A-030(4S) with TVS and temperature protection
No.Test   itemCriterion
1VoltageCharging voltageDC:14.4V  CC/CV
Balance voltage for single cell3.6±0.025v
2CurrentBalance current for single cell36mA
Current consumption 50μA
Maximal continuous charging current7A
Maximal continuous Discharging current7A
3Over charge ProtectionOver charge detection voltage for single cell4.25V±0.025V
Over charge detection delay time0.5S-1.5S
Over charge release voltage for single cell4.15V±0.05V
4Over discharge protectionOver discharge detection voltage for single cell2.70V±0.08V
Over discharge detection delay time0.5S-1.5S
Over discharge release voltage for single cell3.0±0.10V
5Over current protectionOver current detection voltage200±25mv
Over current detection current20±5A
Detection delay time  5mS-15mS
Release conditionExternal charge activation
6Short protectionDetection conditionExterior short circuit
Detection delay time200-500us
Release conditionExternal charge activation
7ResistanceProtection  circuitry(MOSFET)50mΩ
8TemperatureOperating Temperature Range-40~+85ºC
Storage Temperature Range-40~+125ºC

    Wholesale Multiple Sizes 12V 4s 7A LiFePO4 Bluetooth Battery Balance BMS Board with Temperature Protection
 
  2. Company Information

Wholesale Multiple Sizes 12V 4s 7A LiFePO4 Bluetooth Battery Balance BMS Board with Temperature Protection

Wholesale Multiple Sizes 12V 4s 7A LiFePO4 Bluetooth Battery Balance BMS Board with Temperature Protection


Wholesale Multiple Sizes 12V 4s 7A LiFePO4 Bluetooth Battery Balance BMS Board with Temperature Protection
Wholesale Multiple Sizes 12V 4s 7A LiFePO4 Bluetooth Battery Balance BMS Board with Temperature ProtectionWholesale Multiple Sizes 12V 4s 7A LiFePO4 Bluetooth Battery Balance BMS Board with Temperature Protection

  Wholesale Multiple Sizes 12V 4s 7A LiFePO4 Bluetooth Battery Balance BMS Board with Temperature Protection


3. Packaging & Shipping & Payment 

Wholesale Multiple Sizes 12V 4s 7A LiFePO4 Bluetooth Battery Balance BMS Board with Temperature Protection


Wholesale Multiple Sizes 12V 4s 7A LiFePO4 Bluetooth Battery Balance BMS Board with Temperature Protection

4. FAQ
Wholesale Multiple Sizes 12V 4s 7A LiFePO4 Bluetooth Battery Balance BMS Board with Temperature Protection

Q:  How many Ampere protection circuit boards should choose?

A: It depends on your load power such as electric motor power please contact the sales or technical support before buying.

 

Q:  What is the distinction between same port wiring and different port wiring?

A: The cathode of charger and load is different for different port wiring , the cathode of charger and load is same for same port wiring and the charging current is equal to the discharge current. 

 

Q:  What is the distinction between balance and unbalance function?

A: Equilibrium function is that high voltage cells will be discharged with resistor, waiting for the low voltage cells , to achieve the each cell voltage is consistent , to improve the battery performance for the whole group.

 

Q: Do you have Minimum Order Requirement (MOQ)?

A: No, We don't have MOQ, Different customer have different requirement ,We can provide various capacity and size is per your requirements,Also ODM / OEM is welcome.

 

Q:  What is your term of payment?

A: PayPal, T/T, L/C,


5. Customer Feedback

Wholesale Multiple Sizes 12V 4s 7A LiFePO4 Bluetooth Battery Balance BMS Board with Temperature Protection
 

Any further questions, Welcome to contact our sales person by sending inquiry .
Your satisfaction is our pleasure.  Let's Join hands for mutual Benefits!