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4s 12V LiFePO4 Battery BMS

China 4s 12V LiFePO4 Battery BMS, Find details about China LiFePO4 Battery Pack BMS, Battery Management System BMS from 4s 12V LiFePO4 Battery BMS

Model NO.
LWS-4S20A-454
Over Charge Current Protection
600+/-10A
Short Circuit Protection
Yes
Temperature Protection
70 Degrees, 75 Degrees
Metal Coating
Copper
Mode of Production
SMT
Layers
Single-Layer
Base Material
FR-4
Certification
RoHS, ISO
Customized
Customized
Condition
New
Transport Package
Anti-Static Bag Packaging/ Carton Packaging
Specification
67*34*8mm
Origin
China
HS Code
8536300000
Model NO.
LWS-4S20A-454
Over Charge Current Protection
600+/-10A
Short Circuit Protection
Yes
Temperature Protection
70 Degrees, 75 Degrees
Metal Coating
Copper
Mode of Production
SMT
Layers
Single-Layer
Base Material
FR-4
Certification
RoHS, ISO
Customized
Customized
Condition
New
Transport Package
Anti-Static Bag Packaging/ Carton Packaging
Specification
67*34*8mm
Origin
China
HS Code
8536300000
1. Product Description


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 
 Shenzhen Li-ion Battery Bodyguard Technology Co.,ltd
PCM Specifications  For 12.8V(4S) LiFePo4 Battery Packs
Model:LWS-4S20A-454(4S)Same Port
No.Test   itemCriterion
1VoltageCharging voltageDC:14.4V  CC/CV
Balance voltage for single cell3.6±0.05V
2CurrentBalance current for single cell36±5mA
Current consumption ≤50μA
Maximal continuous charging current20A
Maximal continuous Discharging current20A
3Over charge ProtectionOver charge detection voltage for single cell3.65±0.025V
Over charge detection delay time500mS-1500mS
Over charge release voltage for single cell3.48±0.05V
4Over discharge protectionOver discharge detection voltage for single cell2.32±0.08V
Over discharge detection delay time500ms-1500ms
Over discharge release voltage for single cell2.58±0.1V
5Over current protectionOver current detection voltage0.1±0.025V
Over current detection current30±5A
Detection delay time  500ms-1500ms
Release conditionCut load or Charging Activation
6Short protectionDetection conditionExterior short circuit
Detection delay time200-500us
Release conditionCut load or Charging Activation
7ResistanceProtection  circuitry(MOSFET)≤50mΩ
8TemperatureOperating Temperature Range-20~+70ºC
Storage Temperature Range-40~+125ºC
Temperature protection10K NTC 

4s 12V LiFePO4 Battery BMS

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.

2. Related BMS recommended

4s 12V LiFePO4 Battery BMS
4s 12V LiFePO4 Battery BMS
4s 12V LiFePO4 Battery BMS


3.  About US 

4s 12V LiFePO4 Battery BMS
4s 12V LiFePO4 Battery BMS

4. Package information & Payment terms

4s 12V LiFePO4 Battery BMS
4s 12V LiFePO4 Battery BMS
5. FAQ

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,
 

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

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