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Round 3s 4A 11.1V 18650 BMS for 18650 Battery Pack

China Round 3s 4A 11.1V 18650 BMS for 18650 Battery Pack, Find details about China Battery Management System BMS, 3s 18650 BMS from Round 3s 4A 11.1V 18650 BMS for 18650 Battery Pack

Model NO.
LWS-3S4A-421
Short Circuit Protection Function
Cut Load or Charging Activation
Over Current Protection
8~10A
Over Charge Protection
4.25+-0.025V
Over Discharge Protection
2.7+-0.005V
Type
Lithium-Ion Battery Pack
Connection Mode
Series Connection
Rechargeable
Chargeable
Discharge Rate
4A
Size
4A
Accessories Type
Battery
Rated Capacity
>1000MAH
Standard Voltage
>12V
Usage
Protection Circuit Board
Electrolyte
Li-ion
Transport Package
Anti-Static Bag Packaging/ Carton Packaging
Origin
China
HS Code
8536300000
Model NO.
LWS-3S4A-421
Short Circuit Protection Function
Cut Load or Charging Activation
Over Current Protection
8~10A
Over Charge Protection
4.25+-0.025V
Over Discharge Protection
2.7+-0.005V
Type
Lithium-Ion Battery Pack
Connection Mode
Series Connection
Rechargeable
Chargeable
Discharge Rate
4A
Size
4A
Accessories Type
Battery
Rated Capacity
>1000MAH
Standard Voltage
>12V
Usage
Protection Circuit Board
Electrolyte
Li-ion
Transport Package
Anti-Static Bag Packaging/ Carton Packaging
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 11.1V(3S)Li-ion Battery Packs
Model:LWS-3S4A-421(3S)
No.Test   itemCriterion
1VoltageCharging voltageDC:12.6V  CC/CV
Balance voltage for single cell/
2CurrentBalance current for single cell/
Current consumption ≤50μA
Maximal continuous charging current4A
Maximal continuous Discharging current4A
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 time10mS-200mS
Over discharge release voltage for single cell3.0±0.10V
5Over current protectionOver current detection voltage200±25mv
Over current detection current10±2A
Detection delay time  5mS-15mS
Release conditionCut load
6Short protectionDetection conditionExterior short circuit
Detection delay time200-500us
Release conditionCut load
7ResistanceProtection  circuitry(MOSFET)≤50mΩ
8TemperatureOperating Temperature Range-40~+65ºC
Storage Temperature Range-40~+125ºC
 

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.
Round 3s 4A 11.1V 18650 BMS for 18650 Battery Pack



2. Company Information


We professionally manufacture lithium polymer battery and pcb for more than 6 years in China.

We have cooperated with HP,Emerson tool, ,WD.

Our company is established in 2013.

Product Certificates CE ROHS.

Quality control system certificates:ISO9001,

Round 3s 4A 11.1V 18650 BMS for 18650 Battery Pack
Round 3s 4A 11.1V 18650 BMS for 18650 Battery Pack

  Round 3s 4A 11.1V 18650 BMS for 18650 Battery Pack


3. Packaging & Shipping & Payment 



Round 3s 4A 11.1V 18650 BMS for 18650 Battery Pack

4. 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,


5. Contact us

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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