What are the charging and discharging current limits?

The maximum continuous charging current is 4A, and the maximum continuous discharging current is also 4A.

What is the warranty or quality assurance?

We conduct 100% inspection (visual and functional) on finished products. The company has been established since 2013 with a focus on quality.

Temperature Protection 4s Li-ion Battery Packs BMS Board with 10K Ntc

Name: Temperature Protection 4s Li-ion Battery Packs BMS Board with 10K Ntc
Brand: Shenzhen Li-ion Battery Bodyguard Technology Co., Limited
SKU: 941625805

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

US$0.41

10-99 Pieces

US$0.39

100+ Pieces

Sample price:US$0.50/piece.Request sample

Product profile

Customization

Available

Type

18650 BMS

Application

18650 Battery

Model NO.

LWS-4S4A-025T(4S)

Transport Package

PP Bag, Carton

Specification

L47.5*W10*T2.6mm

Trademark

LWS

Origin

China

HS Code

8536300000

Production Capacity

100000PCS/Month

Key features

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

Automatic Voltage Balance: Features automatic voltage balance function to ensure stable performance and extend battery life.

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

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

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

OEM/ODM Support: Welcome OEM/ODM services; customization available from samples, designs, or flexible requirements.

100% Inspection: Finished products undergo 100% visual and functional inspection to ensure quality.

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: ≤6.16h

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 judge what material my battery is?

Check the battery body voltage. If it shows 3.2V, it is LiFePo4. If it shows 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?

The protection circuit board must match the number of cells in series in your battery pack. Ensure the series count is the same.

Q:What material is your battery?

We provide protection circuit boards for both Li-ion and LiFePo4 batteries. Please specify if you need a board for LiFePo4 as parameters differ.

Q:Do we need cell balance or not?

Yes, balance is needed because cells in parallel and series cannot be identical. The board groups cells with similar performance to ensure stability.

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

No, we do not have an MOQ. We can provide various capacities and sizes as per your requirements, and OEM/ODM is welcome.

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Temperature Protection 4s Li-ion Battery Packs BMS Board with 10K Ntc