3S 4S 10A 14.8V Lithium-ion lifepo4 Battery BMS
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3S 4S 10A 14.8V Lithium-ion lifepo4 Battery BMS

LWS® is a leading high-tech enterprise specializing in the research, development, production, and customer service of multi-series and power type lithium battery protection boards. Our CE and RoHS certified 3S 4S 10A 14.8V Lithium-ion lifepo4 Battery BMS reflects our years of expertise in BMS production. With a strong quality advantage, our products undergo rigorous testing, including high-precision E-Testing and 100% quality assurance. Choose LWS® for top-tier battery protection solutions!


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Product Description

Product Introduction

3S 4S 10A 14.8V Lithium-ion lifepo4 Battery BMS is a versatile Battery Management System (BMS) tailored for 3-cell and 4-cell series configurations, designed to support up to 10A of current. This BMS ensures the efficient and safe operation of lithium-ion and LiFePO4 battery packs with a stable 14.8V output. Its intelligent features guarantee precise voltage regulation and current distribution, making it an essential component for various applications demanding reliable and durable power sources.

Product Parameter (Specification)

Shenzhen Li-ion Battery Bodyguard Technology Co.,LTD
PCM Specifications  For LWS® 14.8V(4S) Li-ion Battery Packs
No. Test item Criterion
1 Voltage Charging voltage DC:16.8V  CC/CV
Single balanced voltage 4.20±0.05V
Current Balance current for single cell 42±5mA
Current consumption
Maximal continuous charging current 10A
Maximal continuous Discharging current 10A
3 Over charge Protection(single cell)
Overcharge detection voltage
Over charge detection delay time 0.5S—1.5S
Over charge release voltage for single cell 4.15±0.05V
Over discharge protection (single cell)
Over discharge detection voltage for single cell 2.70V±0.05V
Over discharge detection delay time 15mS—150mS
Over discharge release voltage for single cell
Over current protection
Over current detection voltage 0.10±0.015V
Charge Over current detection
Detection delay time 7.2—11mS
Release condition  Cut load 

Short protection
Detection condition
Exterior short circuit
Detection delay time 200—500uS
Release condition  Cut load 
Resistance Protection  circuitry(MOSFET)
Operating Temperature Range
Storage Temperature Range

Product Feature and Application

LWS® battery protection board 3S 4S  10A 14.8V Lithium ion Battery Pack BMS
 is used for (4S lion) high-capacity battery pack.

Product Details

3S 4S 10A 21V Lithium ion Battery Pack BMS
■ Support 4 LIION Battery Pack
■ Separate monitoring of each string of cells
■ 3 groups of temperature monitoring
■ Over voltage protection (single cell, battery pack), under voltage protection (single cell, battery pack)
■ Over current protection (charge, discharge), level short circuit protection, anti-charge protection
■ Temperature protection (high temperature, low temperature)


1) Wire connection strictly according to the drawing, do not intentionally short circuit.
2) Before charged, need to connect the cables first.
3) When the group of battery is connected in series, ensure that the voltage of each group of batteries voltage is the same. If not, fill each group of batteries separately before connecting them in series. In discharge tests, the group of cells with the fastest voltage drop is the differential cell.

Hot Tags: 3S 4S 10A 14.8V Lithium ion lifepo4 Battery BMS, Manufacturers, Suppliers, Wholesale, Customized, CE, China, Factory, Quality, Price

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