24V 18650 Li-ion Battery Pack

24V 18650 Li-ion Battery Pack – High-Performance Custom Solutions

Junda designs and manufactures high-quality 24V lithium-ion battery packs using top-tier 18650 cells from trusted global brands. Depending on the configuration, these battery packs typically operate at a nominal voltage of 25.2V or 25.9V and are ideal for applications that require compact form factor and stable high-current output. Every 24V pack is engineered with strict electronic performance testing to ensure safety, reliability, and longevity.

  • Smart BMS Integration: Each pack is equipped with an intelligent Battery Management System (BMS) that safeguards against overcharge, over-discharge, overcurrent, and short circuit. Communication protocols like CAN, UART, and RS232 are optional for system integration.

  • Global Certification Compliance: We support customers with key certifications such as UN38.3 for transportation, IEC 62133 and UL 2054 for product safety, and MSDS for international shipment documentation.

  • Precision Quality Control: All 24V 18650 battery packs undergo rigorous validation including cell matching, cycle life testing, insulation checks, and environmental stress testing.

  • Engineering Expertise: With over 10 years of experience and 328 completed 24V battery customization cases, our engineering team delivers reliable solutions tailored to various industries including e-mobility, robotics, and consumer electronics.

  • Fully Customizable: We provide end-to-end customization including housing design, battery dimensions, capacity (Ah), cell brand, connector type, and labeling—meeting both functional and branding needs.

Specialized Engineering Expertise

Our technical team brings over 15 years of hands-on experience in 18650 cell integration and pack architecture. We design each pack for optimal balance between capacity, safety, and lifecycle.

Custom BMS & Component Control

We tailor every BMS according to your project’s voltage, current, and protocol requirements. You can even specify component brands for ICs, MOSFETs, and protection circuits to align with your performance or sourcing standards.

Strict Quality Assurance

Every pack undergoes cell matching, insulation testing, temperature monitoring, and cycle verification. We ensure uniform resistance, stable output, and long-term reliability—all in line with ISO and UN38.3 standards.

Efficient Turnaround Times

With streamlined workflows and in-house capabilities, we accelerate your development timeline without compromising on quality—ideal for fast-moving product cycles or urgent OEM requirements.

Custom 24V 18650 Li-ion Battery Pack Solutions

Explore our range of 24V rechargeable battery packs built with high-performance 18650 lithium-ion cells. Each pack is tailored to meet specific current, size, and safety requirements for industries like medical equipment, mobility systems, lighting, and floor-cleaning devices.

25.9V 5.8Ah 18650 Battery Pack for Medical Equipment

  • Cell Type: 3.7V 18650, 2900mAh

  • Configuration: 14 cells total (7S2P)

  • Discharge Current: 6A with PCB protection

  • Full Voltage: 29.4V

  • Dimensions: 130 × 37 × 70 mm

  • Application: Portable medical and diagnostic equipment

25.2V 9Ah 7S4P 18650 Battery Pack for Diving Lights

  • Cell Brand: Samsung 30Q

  • Configuration: 7S4P, 28 cells

  • Rated Capacity: 9000mAh

  • Discharge Current: 15A continuous

  • Dimensions: Ø 40 × 480 mm

  • Connector: XT60

  • Application: Underwater diving lights and torches

25.9V 14.5Ah 7S5P 18650 Battery Pack for Mobility Vehicles

  • Configuration: 7S5P (35 cells total)

  • Cell Spec: 3.7V 18650, 2900mAh

  • Discharge Current: 15A rated, 25A peak

  • Dimensions: 130 × 93 × 70 mm

  • Connector: Anderson plug

  • Application: Power wheelchairs, mobility scooters, and light EVs

25.9V 20Ah High-Capacity 18650 Battery Pack for Cleaning Machines

  • Configuration: 7S7P, 49 cells (3.7V 18650, 2900mAh)

  • Capacity: 20Ah

  • Features: Built-in smart BMS, waterproof casing

  • Dimensions: Customizable per device design

  • Application: Commercial floor scrubbers and cleaning robots

24V 18650 Battery Pack – Frequently Asked Questions

What is the nominal voltage of a 24V 18650 lithium battery pack?

The typical nominal voltage for a 24V 18650 pack is either 25.2V (7S) or 25.9V depending on the cell chemistry (e.g., 3.6V or 3.7V per cell).

These packs are widely used in medical devices, mobility vehicles (wheelchairs, scooters), diving lights, and industrial cleaning equipment.

Yes. We offer fully customizable options including dimensions, cell brand, casing material, connector type, and wire harness layout to fit your device.

Both are 24V-class systems. The difference lies in the nominal voltage of the individual cells—25.2V uses 3.6V/cell (typically NCM), while 25.9V uses 3.7V/cell (typically high energy-density NCM or NCA).

What types of discharge rates are supported?

Depending on the configuration, our 24V packs support continuous discharge rates from 6A up to 25A. Packs for high-drain devices (e.g. diving lights) use 15A–20A discharge-capable cells.

Yes, waterproof enclosures are available for applications like cleaning machines or underwater lighting. Please specify your IP rating requirement during inquiry.

All our 24V lithium battery packs are integrated with either a standard PCB or smart BMS, offering protection against overcharge, over-discharge, short circuit, and optionally include CAN/RS232 communication.

Standard lead time is 7–10 days for samples and 20–30 days for mass production depending on the complexity and quantity.

24V 18650 Battery Pack: A Complete Buying Guide for B2B Projects

Choosing the right 14.8V 18650 battery pack is critical for powering industrial-grade equipment. This guide walks you through key specs, configuration decisions, cell brand selection, certifications, and pricing considerations.

Table of Contents

Chapter 1

What Is a 24V 18650 Battery Pack?

A clean workbench displaying four blue 24V lithium-ion battery packs, with e-scooter, robot, and portable power unit in the background.

A 24V 18650 battery pack is a rechargeable lithium-ion battery system made by connecting 18650 cells in series to reach a voltage level around 24 volts. These packs typically use 6 or 7 cells in series (6S or 7S), resulting in a nominal voltage of 22.2V or 25.9V—both commonly referred to as “24V” in the industry.

Thanks to their compact size, stable output, and good energy density, 24V 18650 packs are widely used in electric scooters, robots, power tools, and backup systems. They provide a practical balance between power and portability for mid-range applications.

Chapter 2

Choosing the Right Battery Cell for 24V Packs

The performance and safety of a 24V battery pack depend heavily on the 18650 cells inside. Choosing the right cell type is key to matching your application’s needs—whether you prioritize runtime, current output, or cycle life.

For light-load or long-runtime applications, such as surveillance systems or portable devices, high-capacity cells (e.g. 3000–3500mAh) are ideal. These cells provide more energy per charge but usually have lower discharge rates.

For high-power applications like e-scooters, power tools, or drones, you’ll need high-drain cells with continuous discharge ratings of 10A or higher. While these cells may have lower capacity (2500–2800mAh), they’re built to handle higher current without overheating.

Brand also matters. Well-known manufacturers like Samsung, LG, Panasonic, and Molicel offer better consistency and longer cycle life. If you’re using cells from local or lesser-known brands, always confirm they’re Grade A, and request voltage and resistance sorting to ensure safe performance in series use.

To summarize:

  • Choose high-capacity cells for longer runtime

  • Choose high-discharge cells for higher power output

  • Always verify the cell grade and supplier test reports

Close-up of a technician testing various 18650 lithium-ion cells from brands like Samsung and LG using a multimeter on a white table.
Chapter 3

Configuration and Pack Structure for 24V Systems

A 24V battery pack typically uses either 6S (22.2V) or 7S (25.9V) configurations, with additional parallel rows to increase capacity. The more cells connected in parallel, the higher the amp-hour (Ah) rating—while voltage stays the same.

Configuration Cell Count Voltage (Nominal) Use Case
6S2P 12 22.2V Compact systems, light tools
6S4P 24 22.2V Mid-range robotics, medical devices
7S2P 14 25.9V E-scooters, surveillance systems
7S4P 28 25.9V High-capacity tools, backup power
In addition to electrical configuration, the physical structure of the battery pack affects durability, cooling, and installation.
Housing Type Material Best For
Shrink Wrap PVC Lightweight, cost-sensitive builds
Protective Case ABS Plastic Portable tools, mobile equipment
Sealed Housing Aluminum Alloy Outdoor use, industrial or heated environments
The structure should also match your wiring and connector requirements. Always confirm the pack’s size, output interface, and mounting method with your supplier before finalizing the order.
Chapter 4

Performance Parameters and What They Mean

Each technical parameter in a 24V 18650 battery pack affects how well it performs under real-world load. Below is a summary of the key metrics and how they relate to application needs:

Parameter Typical Range What It Affects Buyer Tip
Nominal Voltage 22.2V (6S) / 25.9V (7S) System compatibility Confirm your controller input voltage range
Capacity 2.6Ah – 18Ah+ Runtime (operation time) Choose higher Ah for long-use devices
Energy ~60Wh – 450Wh Total energy storage Multiply Ah × Voltage to calculate Wh
Continuous Discharge 5A – 30A Motor load, power tools Match BMS and cell ratings to your load
Peak Discharge 10A – 60A (burst) Startup current, acceleration Check motor inrush or surge needs
Internal Resistance ≤60 mΩ (pack level) Heat, efficiency, voltage drop Lower IR is better for high load devices
Cycle Life 500 – 1500+ Battery replacement frequency Ask for real test data under your load

Understanding these metrics helps ensure the battery pack won’t just fit—but perform reliably throughout your product’s life cycle.

Chapter 5

Compliance and Export Certification

To ship and sell 24V 18650 battery packs globally, specific certifications are required. These ensure safety during transportation, usage, and regulatory compliance in target markets.

Certification Region Purpose What to Verify
UN38.3 Global Transport safety test for lithium batteries Valid test report and shipping documents
MSDS / SDS Global Chemical safety information sheet Up-to-date sheet per product model
IEC 62133 EU, India, global Rechargeable battery safety (supports CE) Test report and compliance summary
CE Europe Required for consumer sales in EU Declaration of Conformity (DoC)
UL 2054 / UL 62133-2 USA / North America High-standard electrical safety UL file number and certification scope
RoHS EU, UK, global Restriction of hazardous substances Compliance declaration (lead-free, etc.)

Make sure your supplier provides complete and traceable documentation—not just logos. Labeling should clearly indicate voltage, Wh rating, and lithium handling symbols for shipping and end-use clarity.

Chapter 6

Our Customization & Engineering Process

For many B2B applications, off-the-shelf battery packs are not enough. Whether you’re building a medical device, mobility product, or industrial tool, customized 24V 18650 battery packs can help you optimize performance, fit, and user experience.

An engineer designing a custom lithium-ion battery pack using CAD software, with battery prototypes and connector types like XT60 and Anderson on the desk.Electrical Customization
You can choose specific configurations like 6S4P, 7S3P, or other layouts to match your required voltage and capacity. Cell brand, discharge rate, and balancing method can be selected based on your application’s power profile. The BMS can also be customized—supporting CAN, UART, or SMBus protocols, with adjustable voltage cutoffs and data logging features.

Mechanical Customization
Physical dimensions, weight constraints, and mounting styles vary across products. Suppliers can build packs with:

  • Custom sizes to fit tight spaces

  • Specific connector types (XT60, XT90, Molex, Anderson, etc.)

  • Waterproof enclosures (IP65–IP67) for outdoor or rugged use

  • Reinforced casings with brackets or embedded screw holes

Branding and Packaging
For OEMs and device brands, visual customization is available. Battery shells can be printed or laser-marked with your logo, model number, or regulatory labels. Outer packaging and barcodes can also be tailored for retail or bulk shipment needs.

Engineering Support
A capable supplier should assist with:

  • CAD drawings and battery pack layout

  • Technical feasibility evaluation for complex requests

  • Thermal management advice

  • Prototyping and small-batch samples before scaling

Working with a supplier who offers in-house engineering services shortens your development cycle and ensures smoother integration with your device.

Chapter 7

Application Scenarios and Industry Use Cases

The 11.1V 18650 battery pack is one of the most versatile lithium power solutions available. Its moderate voltage, scalable capacity, and compact form factor make it suitable for a wide range of industries—especially where portability, efficiency, and safety matter.

Here are the most common use cases we support at Junda:

E-Bikes and Electric Scooters

24V battery packs are widely used in entry-level and mid-range e-bikes and scooters. They provide reliable power for motor assist systems and are easy to integrate into compact frames.

Construction worker using a cordless drill on a concrete wall, with dust and unfinished building in the background.

Power Tools

Cordless drills, saws, and grinders often use 24V systems for improved torque without excessive weight. Packs with high-discharge cells ensure stable performance during demanding tasks.

Robotics and Mobile Platforms

Autonomous robots, warehouse AGVs, and delivery carts use 24V packs to power motors, sensors, and controllers. These systems benefit from the balance between voltage and energy density.

A solar-powered surveillance camera mounted on a pole with a lithium battery pack inside a weatherproof enclosure, set in a sunlit open field.

Portable Surveillance and IoT Devices

Battery-powered cameras, communication hubs, and remote sensors run on 24V packs to ensure operation in off-grid or mobile deployments. Waterproof housing is often added for outdoor use.

A nurse operating a portable medical monitor attached to a hospital bed, with a visible display of vital signs powered by a lithium battery pack.

Medical and Diagnostic Equipment

Portable devices such as CPAP machines, oxygen concentrators, and lab tools use 24V lithium packs for stable voltage and lightweight operation, especially in mobile healthcare setups.

Chapter 8

How to Choose a Reliable 24V Battery Supplier

Selecting the right battery supplier is just as important as choosing the right battery. A dependable 24V 18650 battery pack partner will help you avoid delays, performance failures, and compliance issues—while supporting your long-term product success.

Here’s what to evaluate:

A business meeting between a battery buyer and supplier discussing certification documents and sample battery packs on a light office table.Cell Source Transparency
A trustworthy supplier will clearly state the cell brands they use—such as Samsung, LG, or reliable Chinese manufacturers—and provide Grade A assurance. You should be able to request cell batch test reports and sorting data (voltage, resistance, capacity).

Certification & Documentation
Suppliers must provide complete certification sets, not just logos. This includes:

  • UN38.3 and MSDS for shipping

  • CE, UL, and IEC62133 reports (if applicable)

  • RoHS and labeling compliance
    These documents should match your exact product configuration.

Customization & Engineering Capability
Can they adjust cell layout, BMS specs, or connectors based on your technical drawings? Ask if they support prototyping, CAD design, or thermal validation—especially if your product has strict size, communication, or safety constraints.

Production & QC Processes
Look for clear answers to questions like:

  • What is your monthly production capacity?

  • Do you test every pack before shipping?

  • How do you manage cell matching and balancing?

Communication & After-Sales Support
Good suppliers respond within 24 hours, document every step clearly, and support replacements or rework if needed. A strong after-sales process builds confidence—especially for long-term B2B cooperation.

In short, your supplier should act as a technical partner—not just a vendor. Prioritize those who understand your application and support your project from concept to shipment.

Chapter 9

Summary

24V 18650 battery packs are a versatile choice for mid-power applications like e-bikes, tools, and robotics. To get the best results, focus on choosing the right configuration, high-quality cells, and a certified supplier. Customization and engineering support also matter—especially for OEM or industrial use. A reliable partner ensures safer performance, smoother integration, and faster delivery.

We’re committed to delivering reliable custom battery solutions—backed by expert support and clear quotations.

Why Choose Junda As Your Custom Battery Pack Manufacturer?

With more than a decade of experience, Junda delivers precision-engineered lithium battery packs tailored for your unique applications. Here’s what makes us a trusted partner for global B2B clients:

Our Engineering Expertise

At Junda, our engineering team is led by a senior battery architect with 15+ years of hands-on experience at CATL, BYD, and other industry leaders. Backed by a cross-functional team of 6 engineers, we provide full-cycle development from design and simulation to testing and certification. We’ve completed over 1,000 custom battery pack projects across sectors like eMobility, energy storage, medical devices, and industrial tools—always focusing on safety, reliability, and performance.

Our Quality Assurance System

Junda operates under a strict ISO 9001:2015-certified quality management system, overseen by our QA director and implemented across every department. From incoming cell inspection to final pack aging tests, every step is digitally tracked and traceable. Our system ensures stable supply chain sourcing, controlled assembly processes, and compliance with industry benchmarks such as UN38.3, CE, and IEC 62133.

Our Assembly & Integration Process

Junda’s battery pack assembly process integrates mechanical, electrical, and thermal design tailored to your use case. Our capabilities include IP67/IP68 waterproof housing, high-discharge BMS systems, CAN/RS485 communication protocols, and reinforced designs for vibration or extreme environments. We conduct cell sorting, welding, insulation, balancing, and aging tests in-house to ensure consistent performance and longevity.

Our End-to-End Support

From your first inquiry to final delivery, we provide responsive, multilingual support backed by a dedicated sales and engineering team. We guide clients through technical evaluation, prototyping, compliance, and logistics—ensuring a transparent, stress-free experience. Whether you need an urgent sample or a long-term OEM solution, we’re here to make your battery development process efficient and reliable.

Simple 3 Steps Process

Submit Your Requirements

Share your voltage, size, application, and quantity needs—we’ll assess your project quickly.

Confirm Specifications

Our engineers will optimize the design, confirm details, and provide samples if needed.

Production & Delivery

Once approved, we start production and arrange fast, secure shipping to your destination.

Get Free Quote

Need a custom lithium battery pack? Just send us your specs—we’ll help you choose the right voltage, case, and configuration for your application.

Custom Battery Packs Made Easy

At JUNDA, we make customization easy. Follow these 3 simple steps to start today:

🔧 Step 1: Tell Us What You Need

Send your battery requirements — voltage, capacity, casing type, or upload drawings/photos.

💡 Step 2: Get Solution & Quote

We’ll evaluate your specs and recommend the best configuration. A detailed quote will be sent within 24 hours.

🚚 Step 3: Confirm & Produce

After approval and deposit, we start production. Shipping and tracking will be arranged for fast, secure delivery.