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PCM 11.1V/14.8V 20A Lithium Ion BMS for 3s/4s PCM
US$5.50-6.00
10 Pieces

Product profile

Customization

Available

Battery Series

3s, 4s Available

Max Charge

20A

Model NO.

LWS-4S20A-408(4S)

Max Discharge

20A

Operating Temperature

-20~+70℃

Delivery Time

7-15 Days After Payment

Sample

Available

Certificate

ISO9001/ISO14001/Ce/RoHS

Type

Lithium Battery BMS/PCM/PCB

Application

Solar, Toy's Battery Pack, Power Bank, Power Tool

Transport Package

Vacuum Packing/Plastic Bag/Standard Carton Packing

Specification

L60*W30*T3mm

Trademark

LWS

Origin

Shenzhen, China(Mainland)

HS Code

8536300000

Production Capacity

100000/Month

Key features

Smart Balance Function: Ensures consistent voltage across cells for improved battery performance and longevity.
Comprehensive Protection: Protects against over-charge, over-discharge, over-current, short-circuit, and temperature issues.
No MOQ Requirement: We do not have a Minimum Order Quantity, allowing flexible purchasing for all customers.
OEM/ODM Customization: Full customization services available including design, samples, and flexible modifications.
High Quality Certifications: ISO9001, ISO14001, CE, and RoHS certified for reliability and safety standards.
Fast Delivery: Delivery within 7-15 days after payment, with off-season lead time within 15 workdays.
Premium Components: Built with high-end ICs and MOSFETs for stable quality and working performance.
Wide Application: Suitable for solar, toys, power banks, power tools, and various lithium battery packs.

Company profile

Shenzhen Li-ion Battery Bodyguard Technology Co., Limited
Self-brandedPatents AwardedYears of Export ExperienceHigh Repeat Buyers Choice
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 12 years CertifiedNearest Port: Shenzhen Port, Hong Kong PortAverage Response Time: ≤6.42h

AI-Powered supplier vetting

SummaryThe supplier presents itself as a Battery BMS manufacturer with documented quality, service, R&D, and production processes. It reports OEM and ODM services, SDK availability, 3D design, broad customization, recent new-product activity, and documented design and verification records. Production-related evidence includes SMT, screen printing, reflow soldering, AOI, coating, drying, packaging, and dedicated testing equipment, with standardized finished-product inspection instructions. It has participated in several offline trade shows and identifies Shenzhen and Hong Kong ports as nearby logistics points. However, the provided information does not establish certifications, named customer cases, or financial performance; it also reports no overseas warehouses, showrooms, agents, or branches.
Supplier typeThe supplier identifies itself as an active Battery BMS manufacturer and reports both OEM services for well-known brands and ODM services. This supports classification as a BMS manufacturer with contract design and manufacturing capabilities.
After-Sales capabilityThe supplier reports clear procedures and followed records for corrective and preventive actions and customer complaint handling. Its technology engineers also provide technical support for production and after-sales service, indicating documented and technically supported after-sales processes.
R&D capabilityR&D engineers handle customer-request confirmation, technical support, and new-product development; design input, output, review, verification, and validation documents are reportedly available for audit. The supplier also reports new products within the past year, ODM capability, and SDK availability, providing explicit evidence of active R&D capability.
Production capacityThe supplier reports multiple manufacturing and testing facilities, including SMT, screen printing, reflow soldering, AOI, coating, drying, packaging, and dedicated power-protection-board testing equipment. It also states that finished-product inspection instructions are available and uniformly followed, while quality assurance and written supplier-service assessment procedures are reported.
Customization capabilityThe supplier provides 3D software design services and reports customization from samples, designs, flexible customization, minor customization, and full customization. These statements directly support broad product and design customization capability.

Product Q&A

Q:How do I identify my battery material?
A:
Check the normal voltage: 3.2V indicates LiFePO4, while 3.6V or 3.7V indicates Li-ion or Li-polymer. You can also ask the manufacturer.
Q:How to choose the right BMS for my battery?
A:
Ensure the BMS matches your battery's series count (e.g., 3S, 4S) and material type (LiFePO4 vs Li-ion) as parameters differ.
Q:Why is cell balance important?
A:
Balance ensures consistent voltage across cells, preventing inconsistency after charging and improving overall battery pack performance.
Q:What is the Minimum Order Quantity (MOQ)?
A:
We do not have an MOQ. We accept various capacities and sizes per your requirements, and welcome ODM/OEM orders.
Q:What payment terms do you accept?
A:
We accept PayPal, T/T, L/C, and Western Union for payments.

Send Inquiry

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