What is the charging voltage for this BMS?

The charging voltage is DC 29.4V, which corresponds to 4.2V per cell for a 7S configuration.

Is this product safe for novices to install?

This is a semi-finished product requiring technical knowledge. Novices should install it under technical guidance to avoid damage.

Different Ports 7s 25A 29.4V Battery Protection BMS Board

Name: Different Ports 7s 25A 29.4V Battery Protection BMS Board
Brand: Shenzhen Li-ion Battery Bodyguard Technology Co., Limited
SKU: 942926055

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

US$8.00

10 Pieces

Sample price:US$8.00/piece.Request sample

Product profile

Customization

Available

Maximal Continuous Charging Current

Maximal Xontinuous Discahrging Current

25A

Model NO.

LWS-7S25A-239(7S)

Charging Voltage

DC:29.4V 4.2V/Cell

Type

7s BMS

Sample

Available

Condition

New

Test

100%

Transport Package

Antistatic Bag, Carton

Specification

L65*W60*T7mm

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.

Voltage Balance Function: Automatically balances voltage for single cells to ensure stable battery pack performance.

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

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

Customization Available: Supports customization from samples, designs, and flexible minor or full customization.

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

OEM/ODM Service: OEM and ODM services are welcome; tailored solutions for specific voltage, cells, and current.

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: ≤6.26h

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 normal voltage is 3.2V, it is LiFePo4. If 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?

Ensure the number of cells in series in your battery pack matches the protection board. The board must correspond to the same number of series cells.

Q:What material is your battery?

We provide protection circuit boards for LiFePo4 and Li-ion batteries. LiFePo4 has different electric parameters, so please specify if needed.

Q:Do we need cell balance or not?

Yes, balance is needed because cells in parallel and series cannot be identical. Balance ensures similar performance groups work effectively.

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

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