What is the lead time for delivery?

Peak season lead time is one month. Off-season lead time is within 15 workdays.

What certifications does the product have?

The product holds ISO9001, ISO14001, CE, and RoHS certifications.

Is customization available?

Yes, we offer full customization from samples, designs, and flexible minor or full customizations based on your specific requirements.

Lws4s 20A 14.8V Smart BMS for Lithium Ion Battery Pack 4s PCB PCM14.8V 20A

Name: Lws4s 20A 14.8V Smart BMS for Lithium Ion Battery Pack 4s PCB PCM14.8V 20A
Brand: Shenzhen Li-ion Battery Bodyguard Technology Co., Limited
SKU: 911555415

Guangdong, ChinaShenzhen Li-ion Battery Bodyguard Technology Co., Limited

US$5.20

10-999 Pieces

US$5.00

1,000-9,999 Pieces

US$4.00

10,000+ Pieces

Product profile

Customization

Available

Max Workign Current

20A

Type Charging Voltage

14.4V

Model NO.

LWS-4S20A-408

Over Charge Protection

3.9V+-0.025V

Ove Discahrge Protection

2.20V+-0.08V

Over Current Protection

35+-5A

Short Circuit Protection Function

Cut Load

Application

Digital Equipment, Electrice, Ebike, etc

Metal Coating

Copper

Mode of Production

SMT

Layers

Multilayer

Base Material

Fr-4

Certification

RoHS, ISO

Customized

Transport Package

Anti-Static Bag Packaging/ Carton Packaging

Specification

60*30*8mm

Trademark

LWS

Origin

Shenzhen, China

HS Code

8536300000

Production Capacity

10000/Month

Key features

Smart Balance Function: Automatically balances voltage across cells to ensure consistent performance and extend battery life.

Comprehensive Protection: Protects against over-charge, over-discharge, over-current, short circuit, and temperature extremes.

OEM/ODM Customization: Supports full customization including design, samples, and flexible adjustments for specific needs.

High-Quality Components: Utilizes high-end ICs and MOSFETs for stable quality, simple structure, and reliable working performance.

Certified Quality: Holds ISO9001, ISO14001, CE, and RoHS certificates ensuring environmental and safety standards.

No MOQ Requirement: No minimum order quantity required; supports various capacities and sizes per customer requirements.

Fast Delivery: Efficient production with peak season lead time of one month and off-season within 15 workdays.

Flexible Application: Can be used for fewer series batteries by leaving connection pins empty, offering versatile usage.

Company profile

Self-brandedPatents AwardedYears of Export ExperienceHigh Repeat Buyers Choice

Shenzhen Li-ion Battery Bodyguard Technology Co., Limited

Guangdong, China

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: ≤6.41h

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 determine the material of my battery?

Check the battery body voltage. If the normal voltage is 3.2V, it is LiFePo4. If it is 3.6V or 3.7V, it is Li-ion or Li-polymer. You can also ask the battery manufacturer.

Q:Can I use this protection circuit board for my battery?

Ensure the number of series cells matches your battery pack. Also, confirm if your battery is LiFePo4, as it has different electrical parameters from other types.

Q:Do we need cell balance function?

Yes, because cells in parallel and series cannot be identical. Without balance, voltage inconsistency occurs after charging, affecting performance.

Q:What is the Minimum Order Quantity (MOQ)?

There is no MOQ. We accommodate different customer requirements and can provide various capacities and sizes. ODM/OEM is welcome.

Q:What are the terms of payment?

We accept PayPal, T/T, L/C, and Western Union for payment.