2s 4A Battery Packs Bluetooth, E-Bike, LED BMS Boards

• Testing Service: 100%E-Testing
• Delivery Time: 7-15days
• Dielectric: Fr-4
• 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-2S4A-153-R01(2S)
• Base Material: Copper
• Transport Package: PP Bag, Carton
• Specification: L49*W6.5*T2mm
• Trademark: LWS
• Origin: China
• HS Code: 8536300000
• Production Capacity: 100000PCS/Month
• Package Size: 6.00cm * 2.00cm * 1.00cm
• Package Gross Weight: 1.000kg

Product Description

 

 

1. Product Description

 BMS Product feature:

• ^{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 /auotmatically voltage balance function .}
Common Version : common port for charge/discharge 

Separate Version : separate port for charge/discharge

We can customize any PCB from 1S to 35S lithium batteries with different current.

3.2V 3.6V 3.7V 4-16S Li ion LiFePo4 battery 18650 32650 BMS 100A 150A  200A 2 battery BMS  With balance and temperature protection
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.   

• 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-2S4A-153-R01(2S)
PCM Size	L49*W6.5*T2 mm
battery series	2S Available
working current	40A 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; then insert the cable into the BMS; (The maximum number of strings is 1-2 strings, the example picture is 2 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) .

Shenzhen Li-ion Battery Bodyguard Technology Co.,LTD
PCM Specifications  For 7.4V(2S)Li-ion Battery Packs
Model:LWS-2S4A-153-R01(2S)
No.	Test   item		Criterion
1	Voltage	Charging voltage	DC:8.4V  CC/CV
		Balance voltage for single cell
2	Current	Balance current for single cell
		Current consumption	Max:20μA
		Max continuous charging current	4A
		Max continuous Discharging current	4A
3	Over charge Protection	Over charge detection voltage for single cell	4.25V±0.025V
		Over charge detection delay time	0.5S-1.5S
		Over charge release voltage for single cell	4.05±0.05V
4	Over discharge protection	Over discharge detection voltage for single cell	2.80V±0.08V
		Over discharge detection delay time	50mS-150mS
		Over discharge release voltage for single cell	3.0±0.1V
5	Over current protection	Over current detection voltage	200±15mv
		Over current detection current	10±2A
		Detection delay time	5mS-15mS
		Release condition	Cut load,Automatic recovery
6	Short protection	Detection condition	Exterior short circuit
		Detection delay time	200-500us
		Release condition	Cut load,Automatic recovery
7	Resistance	Protection  circuitry(MOSFET)	≤40mΩ
8	Temperature	Operating Temperature Range	-20~+60ºC
		Storage Temperature Range	-20~+65ºC

3. FAQ

Q1:Do you accept customization?
A1:Accept customization, technical communication can be carried out according to customer needs to change the existing parameters.

Q2:ls the customization fee refundable?
A2 :According to the later use of the product, the payment for goods can be deducted and returned.

Q3:ls there a minimum order quantity requirement?
A3:There is no minimum order quantity requirement for conventional prod- ucts. After the stability of customized products, there will be minimum order quantity requirement. The specific quantity will be determined according to the actual products.

Q4:Are the parameters adjustable?
A4: Is adjustable, all our products can support communication, can be ad- justed through our company's upper computer under the guidance of the technical staff.

Q5:ls it used for lithium ternary battery or lithium iron phosphate battery?
A5: Yes, all our product parameters can be configured.

Q6:Can weak current switch be supported? A6:Yes, switch operation mode is adjustable.

^{_{Which Battery BMS for which Application?}}

Just tell us the relative voltage/ cells/ current A or equipment information etc,
We will be confident to choose the most suitbable BMS to meet your requirements.
 

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