4s 40A 14.8V 12V LFP BMS PCM with Balance Function

Name: 4s 40A 14.8V 12V LFP BMS PCM with Balance Function
Brand: Shenzhen Li-ion Battery Bodyguard Technology Co., Limited
SKU: 902121385

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

US$30.60-38.50

1 Piece

Sample price:US$89.00/piece.Request sample

Product profile

Customization

Available

Charging Current

40A

Discharging Current

40A

Model NO.

LWS-5S30A-254(4S)

Type Voltage

14.8V

PCM Size

L72*W68*T8.5mm

Balance Current

42mA

Type Charging Voltage

42V

Short Circuit Protection Function

Cut Load or Charging Activation

Over Current Protection

150~180A

Over Charge Protection

4.25V

Over Discharge Protection

2.80V

Temperature Protection

Yes

Type

Rigid Circuit Board

Dielectric

Fr-4

Application

Consumer Electronics

Transport Package

Anti-Static Bag Packaging/ Carton Packaging

Origin

China

HS Code

8536300000

Production Capacity

50000 Pieces /Months

Key features

Smart Balance Function: Automatically balances cell voltage to improve overall battery performance and consistency.

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

High-Quality Components: Built with imported ICs from Japan, MOSFETs from USA, and components from Samsung.

OEM/ODM Services: Full customization support for capacity, size, and design based on customer requirements.

Strict Quality Testing: 100% inspection including 1.2m drop test, short circuit, and overcharge/discharge tests.

Flexible Application: Can be used for fewer series batteries by leaving specific connection pins empty.

Certified Safety: Holds ISO9001, ISO14001, CE, and ROHS certificates for global compliance.

One Year Warranty: Provides a one-year warranty covering mechanical defects and performance issues.

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 many Ampere protection circuit boards should choose?

It depends on your load power such as electric motor power please contact the sales or technical support before buying.

Q:What is the distinction between same port wiring and different port wiring?

The cathode of charger and load is different for different port wiring , the cathode of charger and load is same for same port wiring and the charging current is equal to the discharge current.

Q:What is the distinction between balance and unbalance function?

Equilibrium function is that high voltage cells will be discharged with resistor, waiting for the low voltage cells , to achieve the each cell voltage is consistent , to improve the battery performance for the whole group.

Q:Do you have Minimum Order Requirement (MOQ)?

No, We don't have MOQ, Different customer have different requirement ,We can provide various capacity and size is per your requirements,Also ODM / OEM is welcome.

Q:What is your term of payment?

PayPal, T/T, L/C,