4s 4A 7A 8A Battery BMS Board for 12V 18650 Battery Packs

Name: 4s 4A 7A 8A Battery BMS Board for 12V 18650 Battery Packs
Brand: Shenzhen Li-ion Battery Bodyguard Technology Co., Limited
SKU: 903891445

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

US$1.50

2-99 Pieces

US$1.00

100+ Pieces

Sample price:US$3.00/piece.Request sample

Product profile

Customization

Available

Overcharge Protection

4.25V+-0.025V

Ovediscahrge Protection

2.7+-0.05V

Model NO.

lws-4s7a-01

Max Discharge Current

Over Current Protection

10-13A

Size

50*16*5

Application

Digital Equipment, Electrice, Ebike, etc

Metal Coating

Copper

Customized

Condition

New

Transport Package

in: Vacuum Packing/out: Packing: Carton Packing

Specification

fr4

Trademark

lws

Origin

Shenzhen, Guangdong

HS Code

8536300000

Production Capacity

10000/Month

Key features

Comprehensive Protection Functions: Features over-charge, over-discharge, over-current, short-circuit, and temperature protection with automatic voltage balancing.

Flexible Customization Options: Supports full customization from samples and designs, including flexible customization and minor adjustments.

OEM and ODM Services: Factory direct supply with full OEM and ODM capabilities to meet specific customer requirements.

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

Wide Application Range: Suitable for digital equipment, electric bikes, power tools, and various energy storage devices.

ISO and Safety Certifications: Certified with ISO9001, ISO14001, CE, and ROHS standards for quality and environmental safety.

No Minimum Order Quantity: Accepts orders of any size with no MOQ, providing various capacities and sizes as per requirements.

Fast Delivery Options: Offers fast delivery with lead times of within 15 workdays during off-peak seasons.

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: ≤6.41h

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?

Please take a look at the battery body. If the normal voltage of your battery shows as 3.2V, the battery will be LiFePo4. If the normal voltage of your battery shows as 3.6V or 3.7V, the battery will be Li-ion or Li-polymer battery. You can also ask battery manufacturer the material of battery.

Q:Can I use this protection circuit board for my battery?

There are 2 questions: How much cells in series is your battery pack? The protection circuit board you need to buy must be same cells in series as your battery pack. What material is your battery? Only the LiFePo4 battery has different electric parameter from other battery, so if you need buy the protection circuit board for LiFePo4 battery, Please let us know firstly.

Q:Do we need cell balance or not?

The function of balance: Since battery is made of many pcs of cells in parallel and in series, the cells can't be the same as no two people in the world is the same, so can only put in group with similar performance is not consistent, which will lead to each cell voltage is not consistent as well after the completion of the charging if without balance function

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 as per your requirements, Also ODM / OEM is welcome.

Q:What is your term of payment?

PayPal, T/T, L/C, Western Union