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China suppliers green 18650 lithium ion 7.4V 2S 3A bms pcm for battery pack li-ion

LWS® China suppliers green 18650 lithium ion 7.4V 2S 3A bms pcm for battery pack li-ion is an advanced and reliable battery management system, ensuring safety and optimal performance for 2-cell lithium-ion battery packs used in various applications. With over 10 years of expertise in hardware and software design, LWS® offers high-quality solutions, including customized battery packs and smart chargers, complying with CE, UL, and other certifications. Trustworthy and efficient, LWS® is a leading industry choice for battery management needs.

Model:LWS-2S3A-134

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Product Description

Product Introduction

LWS® China suppliers green 18650 lithium ion 7.4V 2S 3A bms pcm for battery pack li-ion For 18650 Charger
Is for nominal voltage 3.6V 3.7V lithium battery(Including 18650,26650, lithium polymer batteries). You are welcomed to come to LWS to buy the latest selling, low price, and high-quality 2S 3A Lithium ion Battery BMS For 18650 Charger. We look forward to cooperating with you.

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
1	Voltage	Balance voltage for single cell	/
2	Current	Balance current for single cell	/
		Current consumption	Max:20μA
		Maximal continuous charging current	4A
		Maximal continuous Discharging current	4A
3	Over charge Protection（single cell)	Overcharge detection voltage for single cell	4.25V±0.025V
		Over charge detection delay time	0.5—1.5S
		Over charge release voltage for single cell	4.05±0.05V
4	Over discharge protection (single cell)	Over discharge detection voltage for single cell	2.80V±0.08V
		Over discharge detection delay time	50mS—150mS
		Over discharge release voltage for single cell
5	Over current protection	Over current detection voltage	200±15mv
		Charge Over current detection	8±1A
		Detection delay time	5—15mS
		Release condition	Cut load
6	Short protection	Detection condition	Exterior short circuit
		Detection delay time	200—500uS
		Release condition	Cut load
7	Resistance	Protection circuitry（MOSFET）	≤50mΩ
8	Temperature	Operating Temperature Range	-40～+85℃
8	Temperature	Storage Temperature Range	-40～+125℃

Product Feature and Application

Our LWS® has a proven track record in the industry, with extensive experience in developing battery protection boards and other related solutions. The 7.4V 2S 3A BMS is no exception, showcasing the brand's commitment to delivering top-tier products that meet high-quality standards.

Product Details

LWS® 2S 3A Lithium ion Battery For Electrical Tool UPS BMS
The circuit board is made with high quality electronic components, stable and reliable, suitable for 2 series 3.7V 18650 Li-ion cell.

Notes

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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