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首页 > 产品 > 电子元器件 > 电子元件/无源元件 > 印制（刷）电路板和印制（刷）电路板组件

LWS bms 7.4v 2s 3a 4a 5a bms for 3.2v 3.7v cell lithium battery pack with balance

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Shenzhen Li ion Battery Bodyguard Technology Co.,Ltd

China - Shenzhen

工贸一体

贸易能力

出口百分比

50-70%

最近的港口

Shenzhen,Guangzhou,HongKong

接受的交付條款

FOB,CIF,EXW,DDP

雇员

11-50人

接受的付款貨幣

USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CNF

平均提前期

10 天）

证书

发起聊天发起会议

产品详情

产品属性产品描述

产品属性

产品描述

Overview

Quick Details

Model Number:: LWS-2S5A-107V3(2S)

Type:: bms pcba

Place of Origin:: GUA

Brand Name:: LWS

Supplier Type:: OEM, Customizable

Copper Thickness:: 4 oz

Product name:: 2S BMS

Rated Voltage:: 7.4V

Maximum continue discharge current:: 5A

Sample:: Available

Testing Service:: 100% AOI / function Testing

Size:: L43*W13*T2.5mm

Charging voltage:: 8.4V

Usage:: Lithium Battery Packs,LiFePO4 etc

Solder mask:: Green. Red. Blue. White. Black.Yellow

Port:: Common Port or two port both availbale

Packaging & Delivery

Product Description

LWS bms 7.4v 2s 3a 4a 5a bms for 3.2v 3.7v cell lithium battery pack with balance来自中国供应商

Product Paramenters

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......

Product Description

Mode	LWS-2S5A-107V3(2s)
PCM Size	L46W13T2.5 mm
battery series	2S Available
working current	2A, 3A, 4A, 5A Available
Usage (Cell Type)	Li-ion battery packs (3.7V/cell) LiFePO4 battery packs (3.2V/cell)
Application	Solar products, etc
Sample	available

LWS bms 7.4v 2s 3a 4a 5a bms for 3.2v 3.7v cell lithium battery pack with balance

PCM Specifications For 7.4V (2S) Li-ion Battery Packs
Model:LWS-2S5A-107V3(2S)
No.	Test item			Criterion
1	Voltage	Charging voltage	DC：8.4V CC/CV
1	Voltage			Balance voltage for single cell	4.20±0.025V
2	Current	Balance current for single cell	42±5mA
				Current consumption	≤20μA
				Maximal continuous charging current	15A
				Maximal continuous Discharging current	15A
3	Over charge Protection	Over charge detection voltage for single cell	4.25±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	2.80±0.08V
				Over discharge detection delay time	50mS—150mS
				Over discharge release voltage for single cell	3.0±0.075V
5	Over current protection	Over current detection voltage	200±25mv
				Over charge/discharge current detection current	15±3A
				Detection delay time	5ms—20ms
				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）	≤50mΩ
8	Temperature	Operating Temperature Range	-40～+60℃
8	Temperature			Storage Temperature Range	-40～+85℃

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 2S 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) .

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.

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,L/C,PayPal,Western Union,Cash;
Language Spoken:English,Chinese

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