What is the delivery time for orders?

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

Power Supply Balancer BMS 3s 4s Lithium/LiFePO4 Battery PCB Board

Name: Power Supply Balancer BMS 3s 4s Lithium/LiFePO4 Battery PCB Board
Brand: Shenzhen Li-ion Battery Bodyguard Technology Co., Limited
SKU: 905721225

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

US$9.50

2-99 Pieces

US$6.50

100+ Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Product Name

BMS 1s4a Battery PCM

Max Charging Current

20A

Model NO.

LWS-4S20A-068

Max Discharging Current

20A

Over-Charge Voltage

4.25V

Over-Discharge Voltage

2.8V

Over Current

80-100A

Usage

Lithium Battery Packs, LiFePO4 etc

Application

Digital Equipment, Power Tool, Electrice

Mode of Production

SMT

Layers

Multilayer

Base Material

Fr-4

Customized

Condition

New

Delivery Time

7-15 Days After Payment for Small Order

Transport Package

in: Vacuum Packing/out: Packing: Carton Packing

Specification

L90*W55*T13mm

Trademark

lws

Origin

Shenzhen, Guangdong

HS Code

8536300000

Production Capacity

10000/Month

Key features

Smart Balance Function: Ensures stable performance with high-end IC and MOSFET components for automatic voltage balancing.

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

OEM/ODM Customization: Supports full customization from samples or designs, including voltage, cells, and current specifications.

Wide Application Scope: Suitable for power tools, e-bikes, golf carts, medical equipment, and energy storage devices.

Certified Quality: Manufactured with ISO9001, ISO14001, CE, and ROHS certifications ensuring high quality standards.

Flexible Design: 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: ≤6.15h

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 my battery material type?

Check the battery body voltage: 3.2V indicates LiFePo4, while 3.6V or 3.7V indicates Li-ion or Li-polymer. You can also consult the manufacturer.

Q:How do I select the correct BMS for my battery?

Ensure the BMS series count matches your battery pack cells. Also, specify if it is for LiFePo4 batteries, as they have different electrical parameters.

Q:Is cell balancing necessary for my battery pack?

Yes, because individual cells vary in performance. Balancing ensures similar performance groups work efficiently and safely.

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

There is no MOQ. We accommodate various capacities and sizes per requirements, and welcome ODM/OEM orders.

Q:What payment terms are accepted?

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