What is the lead time for orders?

For small orders, delivery is within 7-15 days after payment. Peak season lead time is one month, while off-season is within 15 workdays.

Is customization available for this BMS?

Yes, all items can be customized to your requirements, including detection voltages, delay times, and release conditions.

3s 4s 7A Battery Management System Li-ion LiFePO4 BMS

Name: 3s 4s 7A Battery Management System Li-ion LiFePO4 BMS
Brand: Shenzhen Li-ion Battery Bodyguard Technology Co., Limited
SKU: 2076913955

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

US$54.00

5-499 Pieces

US$52.00

500-999 Pieces

US$48.00

1,000+ Pieces

Sample price:US$80.00/piece.Request sample

Product profile

Customization

Available

Overcharge Protection

Yes

Ovediscahrge Protection

Yes

Model NO.

LWS-4S7A-064

Over Current Protection

Yes

Balance Function

Yes

Usage

Lithium Battery Packs, LiFePO4 etc

Application

Digital Equipment, Electrice, Ebike, etc

Delivery Time

7-15 Days After Payment for Small Order

Metal Coating

Copper

Mode of Production

SMT

Layers

Multilayer

Base Material

Fr-4

Certification

RoHS, ISO

Customized

Condition

New

Testing Service

100%E-Testing

Transport Package

in: Vacuum Packing/out: Packing: Carton Packing

Specification

L30*W24*T4mm

Trademark

lws

Origin

Shenzhen, Guangdong

HS Code

8536300000

Production Capacity

10000/Month

Key features

Versatile Battery Compatibility: Supports both Li-ion (3.6V/3.7V) and LiFePO4 (3.2V) battery packs for 3S/4S configurations.

Comprehensive Protection Features: Includes overcharge, over-discharge, over-current, short circuit, and temperature protection.

Flexible Customization Options: Full customization available for detection voltages, delay times, and release conditions.

Advanced Communication Interfaces: Supports UART, Bluetooth, RS485, CAN communication, and LCD display options.

High-Quality Manufacturing Standards: RoHS and ISO certified with 100% E-testing and CE certification for reliability.

Professional Technical Support: Expert guidance on wiring, voltage testing, and product selection for specific applications.

Fast Delivery for Small Orders: Quick turnaround with delivery within 7-15 days after payment for small quantity orders.

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: ≤7.47h

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 if my battery is Li-ion or LiFePO4?

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:What is the warranty and quality guarantee?

We provide a pre-production sample before mass production and conduct a final inspection before shipment to ensure quality.

Q:What products do you supply?

We supply Battery Pack BMS, LiFePO4/Lithium Ion PCM, Protection Circuit Boards, Printed Circuit Boards, and Battery Packs.

Q:What are the accepted payment terms and currencies?

We accept USD and CNY via T/T, PayPal, Western Union, or Cash. Delivery terms include FOB and EXW.

Q:Can I get a sample before placing a large order?

Yes, samples are available. Please contact our sales team first if you need any accessories or specific configurations.