How can I contact you for BMS support?

Please send messages below or email us. We are always glad to help with BMS selection and technical support.

14.8V BMS 4s 4A Lithium Power Battery Protection Board PCM

Name: 14.8V BMS 4s 4A Lithium Power Battery Protection Board PCM
Brand: Shenzhen Li-ion Battery Bodyguard Technology Co., Limited
SKU: 896596455

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

US$1.50-1.80

5 Pieces

Product profile

Customization

Available

Max Charge

Max Discharge

Model NO.

LWS-4S4A-049

Operating Temperature

-20~+70℃

Delivery Time

7-15 Days After Payment

Sample

Available

Usage

Lithium Ion/LiFePO4 Battery Packs, etc

Certificate

ISO9001/ISO14001/Ce/RoHS

Transport Package

Vacuum Packing/Plastic Bag/Standard Carton Packing

Specification

L48*W14*T4mm

Trademark

LWS

Origin

Shenzhen, China(Mainland)

HS Code

8536300000

Production Capacity

100000/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 battery packs.

High-Quality Components: Built with high-end ICs and MOSFETs for stable quality and reliable working performance.

No MOQ Requirement: We do not have a Minimum Order Quantity, allowing flexible purchasing for various customer needs.

Fast Delivery: Delivery time is 7-15 days after payment, with off-season lead times within 15 workdays.

Certified Quality: Products hold ISO9001, ISO14001, CE, and RoHS certificates ensuring safety and compliance.

Wide Application: Suitable for Li-ion, LiFePO4, and LTO batteries in power tools, e-bikes, and other devices.

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: ≤6.99h

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.