Smart 4s 150A Battery Management System BMS for 12.8V LiFePO4 Battery with Bluetooth RS485 Protocol

• Overcharge Protection: Yes
• Ovediscahrge Protection: Yes
• Over Current Protection: Yes
• 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-4S150A-873
• Balance Function: Yes
• Usage: Lithium Battery Packs, LiFePO4 etc
• Application: Digital Equipment, Electrice, Ebike, etc
• Delivery Time: 7-15 Days After Payment for Small Order
• Metal Coating: Copper
• Mode of Production: SMT
• Layers: Multilayer
• Base Material: Fr-4
• Certification: RoHS, ISO
• Customized: Customized
• Condition: New
• Testing Service: 100%E-Testing
• Transport Package: in: Vacuum Packing/out: Packing: Carton Packing
• Specification: L180*W90*T15mm
• Trademark: lws
• Origin: Shenzhen, Guangdong
• HS Code: 8536300000
• Production Capacity: 10000/Month
• Package Size: 20.00cm * 10.00cm * 12.00cm
• Package Gross Weight: 1.000kg

Product Description

Mode	LWS-4S150A-873
PCM Size	L180*W90*T15 mm
battery series	4S Available
working current	150Available
Usage(Cell Type)	Li-ion battery packs (14.8V/cell) LiFePO4 battery packs (12.8V/cell)
Application	Ebike, Solar products, etc
Sample	available

Feature:
                  1.Provides protection for 4 series LiFePo battery pack
                2.Provides protections in charging and discharging
                3.Processes the balance between cells smartly, the current of it can be set freely by external components.
                4.Deals with over-current and short-circuit protection with circuit itself
                5.Protect an electrical circuit from damage caused by over current/ over load or short circuit
                6.Support RS485 protocol
                7.Support bluetooth protocol
 

LWS-4S150A-873 (4S150A)  for LiFePo battery pack of  4  cells in series is a battery protection solution of LWS's, can support a load with very stable, in addition that the continuous current may be up to 150A

LWS 4S 3A Protection Circuit Board is designed for 12.8V lifepo4 battery packs with 4-series cells. It offers 3A protection and includes an NTC thermistor for temperature monitoring, ensuring safety and reliability for your battery system.

 

Shenzhen Li-ion Battery Bodyguard Technology Co.,LTD
PCM Specifications  For 14.4V (4S) LiFePO Battery Packs
Model: LWS-4S150A-873 (4S) for start-up battery pack
No	Test   item		Criterion
1	Voltage	Charging voltage	DC:14.4V  CC/CV
		Balance voltage for single cell	3.2±0.025Vc
2	Current	Balance current for single cell	50±20mA
		Current consumption -sigle cell	≤50μA
		Maximal continuous charging/discharge current	≤150A
		Pulse current	≤150A
3	Over charge Protection	Over charge detection voltage for single cell	3.60±0.025V
		Over charge detection delay time	2S±1S
		Over charge release voltage for single cell	3.40±0.05V
4	Over discharge protection	Over discharge detection voltage for single cell	3.00±0.05V
		Over discharge detection delay time	2±1S
		Over discharge release voltage for single cell	3.10±0.10V
5	Over current protection	Over discharge current protection1	300±20A
		Detection delay time 1	30S
		Over discharge current protection 2	1340±50A
		Detection delay time 2	2000mS
		Overcharge current protects current	325±20A
		Detection delay time	30S
6	Short protection	Short circuit current	Exterior short circuit
		protection delay time	50-800us
		Release condition	Cut  load,Automatic recovery
7	Resistance	Protection  circuitry(MOSFET)	≤5mΩ
9	Temperature	Operating Temperature Range	-40~+85ºC
		Storage Temperature Range	-40~+125ºC

     

LWS 4S 150A 14.8V Protection Circuit Module is a high-performance BMS designed for 12.8V lifepo4 battery packs with 4-series cells. It offers 150A protection and supports communication protocols like RS485 and Bluetooth, providing advanced management and safety features for various applications.

First step: connect the B-to the battery negative terminal (the B-needs to be welded the stub first).and then connect the cables (before connecting the cablesremove the cables from the bms)

Second step: start wiring from B-B-is connected to the battery total negative terminal(will say this name to number 1 ). The sideline B1 is connected to the positive of number 1 battery.the third line B2 is connected to the positive of number 2 batterv.the fourth line B3 is connected tothe positive of number 3 battery and so on.

Third step: After the cables wired,test the voltage what between each two adjacent lines from the first one,the voltage of Li-ion battery should be less than 4Vthe voltage of LFP battery should be less than 3.5V.After checking.insert the line.

Fourth step: And then connect the negative terminal of charger and of load to P-/C-B-and P-/C- should be wiring with bold cableThe wiring method requires the order must to be correct.
 

ABOUT US
   Shenzhen Li-ion Battery Bodyguard Technology Co.,Ltd was founded in 2013. We provide Battery PCM &BMS for Lithium ion,LiFePo4,LTO battery pack and ODM & OEM services.Since established, we have designed more than 900 types of hardware PCM/BMS, and software BMS including HDQ/12C/SMBUS/ RS485/RS232 & Bluetooth and so on. Mainly covers battery assembly 1S-35S in series, working current up to 350A; the products arewidely used in light ,power tool, electric bicycle,medical equipment, EV application ....etc. Li-ion Battery Bodyguard Technology Co., Ltd has passed ISO 9001(2015) certification.We were also awarded High Technology Expertise (HNTE) in 2018.
   The spirit of "honesty, credibility first" business principle, fast delivery time, competitive price ,high-quality products & services have got us many customer's affirmation.And because of that, our products have been sold to not only Germany, France, the United States, Australia, India, South Korea, Japan but also other countries and regions.
    As a professional BMS designer and manufacturer, we are willing to support, help every client to open new markets and extend new business. Meet us, Meet reliablility, Meet our mutual development!

 

FAQ
Q: How do I judge what material my battery is ?
A: Please take a look at the battery body.if the normal voltage of your battery shows as 3.2V,the battery will be LiFePo4.If the normal voltage of your battery shows as 3.6V or 3.7V, the battery will be Li-ion or Li-polymer battery. you can also ask battery manufacturer the material of battery.

Q: who are we?
A: We are based in Guangdong, China, start from 2013.
There are total about 40 employees in our company.
 

Q:How can we guarantee quality?
A: Always a pre-production sample before mass production;
Always final Inspection before shipment;

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

Q:. why should you buy from us not from other suppliers?
A: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.

Q: what services can we provide?
A:Accepted Delivery Terms: FOB,EXW;
Accepted Payment Currency:USD,CNY;
Accepted Payment Type: T/T,PayPal,Western Union,Cash;
Language Spoken:English,Chinese


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.