Factory Price Battery Management System 14.8V 4s 100A LiFePO4 Batery BMS for Lead Acid Replacement

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Shenzhen Li-ion Battery Bodyguard Technology Co., Limited

VIP   Audited Supplier 6 years
Profile Certified by SGS/BV
LWS-4S100A-972
70A
100A
4.25V±0.025V
Yes
Lithium Battery Packs, LiFePO4 etc
Digital Equipment, Electrice, Ebike, etc
7-15 Days After Payment for Small Order
Copper
SMT
Multilayer
Fr-4
RS485, Can, Bluetooth
Customized
New
100%E-Testing
LWS
in: Vacuum Packing/out: Packing: Carton Packing
L139.2*W85.8*T17.8mm
Shenzhen, Guangdong
8536300000
Product Description

 

Product Parameters
ModeLWS-4S100A-972
PCM SizeL139.2*W85.8*T17.8mm
battery series4S Available
working current100Available
Usage(Cell Type)Li-ion battery packs (14.8V/cell)
LiFePO4 battery packs (12.8V/cell)
ApplicationEbike, Solar products, etc
Sampleavailable

LWS-4S100A-972(4S100A)  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  100A .

Features Introduced

1.Provides protection for 4 series LiFePo battery pack
2.rovides 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
8.Support low temperature heating

Product Picture

Specification
   
 
LWS-4S100A-972(4S)
NO.Test itemStandard
1VoltageCharging voltageDC:16.8V  CC/CV
Single cell balancing voltage4.125±0.025V
2CurrentSingle cell balancing current84±10mA
Current consumption (self-consumption) - single cell50uA
Maximum continuous charging current70A
Maximum continuous discharge current100A
3Overcharge protection (single cell)Over charge detection voltage4.25V±0.025V
Over charge detection delay time800-1300mS
Over charge recovery voltage4.15±0.05V
4Overdischarge protection (single cell)Over discharge detection voltage2.8V±0.0625V
Over discharge detection delay time800-1300mS
Over discharge recovery voltage3.0±0.075V
5Overcurrent protectionOver current detection voltage50±5mv
Discharge over current detection current330±50A
Charge over current detection current150±20A
Discharge over current detection delay time500-1500mS
Recovery stateDisconnect the load and automatically recover
6Short circuit protectionShort circuit conditionExternal short circuit
Detection delay time100-500uS
Recovery stateDisconnect the load and automatically recover
7Internal resistanceProtection circuit (MOSFET)20mΩ
8Protection temperatureCharge and discharge high temperature protection75±5ºC
Charge and discharge high temperature protection recovery53±15ºC
8TemperatureOperating temperature range-20~+60ºC
Storage temperature range-20~+85ºC
 
Electric Switch, Temperature Switch, Passive Balance, Active Balance, 5V output, NTC,bluetooth UART/BT/RS485/CAN communication/LCD dispay and etc., if you need any above accessories, please must to contact our sales fisrt. All items could be customized to your requirements,if without any requests after order placed, we will produce as specification in details page.
 
Product advantage


 

About LWS
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

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.

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