2S 15A 7.4V Lithium ion Battery BMS For 18650 Charger
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2S 15A 7.4V Lithium ion Battery BMS For 18650 Charger

You can confidently purchase LWS®'s 2S 15A 7.4V Lithium ion Battery BMS For 18650 Charger. With strong technical capabilities and a decade of experience, LWS® excels in delivering high-quality Battery Management Systems. This BMS ensures efficient performance and safety for your 7.4V lithium-ion batteries. Welcome to experience the excellence of LWS®.


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Product Description

Product Introduction

LWS 2S 15A 7.4V Lithium ion Battery BMS For 18650 Charger is designed to optimize the performance of 18650 lithium-ion batteries in a 2-series configuration, allowing for a continuous discharge current of up to 15A. With a 7.4V output, it ensures a reliable and efficient power supply for various applications, making it an essential component for your battery charging needs.

Product Parameter (Specification)

Shenzhen Li-ion Battery Bodyguard Technology Co.,LTD
PCM Specifications  For LWS® 7.4V (2S) Li-ion Battery Packs
No. Test item Criterion
1 Voltage Charging voltage DC:8.4V  CC/CV
Balance voltage for single cell     /
Current Balance current for single cell     /
Current consumption
Maximal continuous charging current 10A
Maximal continuous Discharging current 10A
3 Over charge Protection(single cell)
Overcharge detection voltage for single cell
Over charge detection delay time 0.5—1.5S
Over charge release voltage for single cell 4.05±0.05V
Over discharge protection (single cell)
Over discharge detection voltage for single cell
Over discharge detection delay time 50mS—150mS

Over discharge release voltage for single cell

Over current protection
Over current detection voltage 200±15mv
Charge Over current detection
Detection delay time 5—15mS
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

Our 2S 15A Lithium-ion Battery BMS for 18650 Charger offers an efficient, safe, and stable battery management solution. It is suitable for various applications, including portable electronic devices, drones, portable medical equipment, electric tools, and more, enhancing battery performance and extending its lifespan.

Product Details

LWS® 2S 7.4V 15A BMS includes advanced equalization functions that balance individual cells within the battery pack, promoting longer battery life and improving overall performance.

It protective functions of its predecessor, providing comprehensive safeguards against overcurrent, short circuit, over-temperature, and ensuring reliable battery charge and discharge protection.


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.

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