Self-Produced 200A 300A PCM 20s LiFePO4 BMS

• Product Name: LiFePO4 BMS
• Usage: Lithium Battery Packs, LiFePO4 etc
• Series: 4s-20s
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: LWS-20S300A-482(20S)
• Working Current: 200A
• Metal Coating: Copper
• Mode of Production: SMT
• Layers: Double-Layer
• Base Material: Fr-4
• Certification: RoHS, ISO
• Customized: Customized
• Condition: Used
• Transport Package: Electrostatic Bag and Carton
• Specification: L175*W116.5*T15.5mm
• Trademark: LWS
• Origin: China
• HS Code: 8536300000
• Package Size: 18.00cm * 12.00cm * 2.00cm
• Package Gross Weight: 1.000kg

Product Description

1. Product Description

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.}
If you feel that this product does not meet your requirements, you can consult our staff, you can recommend or customize the lithium battery protection board you want.

Self-Produced and Sold 100A 150A 200A LFP Batteried RoHS PCM 20s LiFePO4 BMS 60V
 

• Description of application effect 

    (Battery Management System) BMS can extend battery life and make battery work safely.

 

     This model can be used for solar, LED lights, Emergency lights, Digital Equipment, etc.electric scooter,e-bike,tourisr
sightseeing vehicle,electric tricycle,low speed ev,emergrncy ups,solar street light,RV&home energy storage......

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. 

Mode	LWS-20S300A-482(20S)
PCM Size	L175*W116.5*T15.5 mm
battery series	4S-20S Available
working current	300A Available
Application	LED lights, Emergency lights, Digital Equipment, etc
Sample	available

Wiring:
1. First connect the B- of the BMS to the total negative pole of the battery pack;

2.The cable starts from the thin black one connecting B-, the second red wire connects the positive pole of the first string of batteries, and the next string is connected in turn to positive pole of the battery,B-,B1,B2......B20; then insert the cable into the BMS; (The maximum number of strings is 4-13 strings, the example picture is 13 strings) (Please weld the wires in order and avoid pseudo solder joints.)  
3. Connect Charger C-/Load P- with BMS C-/P- (Use larger size wires) 
4. Connect Positive Pole: Charger C+/Load P+ with Battery Pack B+ (Use larger size wires) .

PCM Specifications  For 74V(20S)Li-ion Battery Packs
Model:LWS-20S300A-482(20S)
No.	Test   item		Criterion
1	Voltage	Charging voltage	DC:84V  CC/CV
		Balance voltage for single cell	4.2±0.025V
2	Current	Balance current for single cell	42±5mA
		Current consumption	≤50uA
		Max continuous charging current	120A
		Max continuous Discharging current	120A
3	Over charge Protection	Over charge detection voltage for single cell	4.25±0.025V
		Over charge detection delay time	500-1500mS
		Over charge release voltage for single cell	4.15±0.05V
4	Over discharge protection	Over discharge detection voltage for single cell	2.75±0.08V
		Over discharge detection delay time	500-1500mS
		Over discharge release voltage for single cell	3.00±0.10V
5	Over current protection	Over current detection voltage	100±25mv
		Over charge/discharge current detection current	300-400A
		Detection delay time	50mS-600mS
		Release condition	Cut load,Automatic recovery
6	Short protection	Detection condition	Exterior short circuit
		Detection delay time	500-1500uS
		Release condition	Cut load,Automatic recovery
7	Resistance	Protection  circuitry(MOSFET)	≤20mΩ
8	Temperature	Operating Temperature Range	-40~+85ºC
		Storage Temperature Range	-40~+125ºC

 

Wiring:

 1. Connect Battery B- with BMS B- firstly!

 2. Connect Battery1,Battery2,...Battwey19,Battery20 with the BMS as the picture shows.

(Please weld the wires in order and avoid pseudo solder joints.)

 3. Connect Charger C-/Load P- with BMS C-/P- (Use larger size wires)

 4. Connect Positive Pole: Charger C+/Load P+ with Battery Pack B+ (Use larger size wires) .

 Pay attention to make insulation.

3. FAQ
Q: How do I judge what material my battery is ?
A: Please take a look at the battery body.
LiFePO4 battery: if the normal voltage of your battery shows 3.2V or 3.3V.
Li-ion or Li-polymer battery: if the normal voltage of your battery shows 3.6V or 3.7V.
LTO battery: if the normal voltage of your battery shows 2.3V or 2.4V.
1. who are we?
We are based in Guangdong, China, start from 2013,sell to Domestic Market(50.00%),Southeast Asia(8.00%),Eastern Europe(5.00%),Mid East(5.00%),Western Europe(5.00%),Northern Europe(5.00%),Southern Europe(5.00%),North America(3.00%),South America(3.00%),Oceania(3.00%),Eastern Asia(3.00%),Central America(2.00%),South Asia(2.00%),Africa(00.00%). There are total about 11-50 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Battery Pack BMS,Lifepo4/Lithium Ion PCM,Protection Circuit Board,Print Circuit Board,Lifepo4/Lithium Ion Battery Pack

4. why should you buy from us not from other suppliers?
The company has advanced production equipment and comfortable office environment, employees hundreds of people. The company Has a complete, scientific quality management system, and the importance of quality and environmental philosophy

5. what services can we provide?
Accepted Delivery Terms: FOB,EXW;
Accepted Payment Currency:USD,CNY;
Accepted Payment Type: T/T,PayPal,Western Union,Cash;