Engineered for devices that demand power stability, compact size, and long service life, our custom 14.8V lithium-ion battery packs offer proven reliability across a wide range of industries. Each pack is made using 4-series configurations of high-grade 18650 cells, ensuring optimal energy output and cycle life.
At Junda Battery, our engineering team designs and builds 14.8V li-ion battery packs that meet rigorous safety, performance, and customization standards. From initial concept to mass production, every pack goes through strict quality control procedures and traceable testing.
Key advantages of our 14.8V battery systems include:
Smart BMS Integration — Supporting CAN bus, RS232, and custom protocol options for real-time battery health monitoring and communication.
Global Certifications Ready — We assist with UN38.3, IEC 62133, UL2054, MSDS and more for hassle-free global compliance.
Proven Cell Quality — Only high-performance cells from top-tier brands are used, enhancing durability and energy density.
Custom Engineering — From pack dimensions and output to casing and connectors, we tailor every detail to fit your end-use equipment.
Industrial Experience — Over 10 years in battery pack manufacturing with hundreds of successful 4S lithium battery projects delivered.
Whether you need a power solution for robotics, UAVs, medical devices, or smart tools, our 14.8V 18650 battery packs are optimized for your real-world performance requirements.
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.
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.
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.
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.
We design and manufacture custom lithium battery packs tailored to your exact specifications—from high-power cylindrical cells to solid-state and waterproof modules.
A compact lithium battery pack made from trusted 18650 2900mAh cells (3.6V each). Designed with BQ chip fuel gauge monitoring and equipped with a Molex connector, it offers stable power delivery for portable audio equipment.
Configuration: 4S1P
Dimension: 39×39×70.5 mm
Features: Fuel gauge chip, Molex connector
Application: Bluetooth speaker
Built with Samsung 18650 3500mAh cells, this slim battery pack offers reliable power with a 4A PCB. Ideal for portable medical equipment needing compact and certified energy storage.
Configuration: 4S1P
Dimension: 38×20×132 mm
Discharge Current: 4A
Weight: 200g
Application: Medical devices
A high-capacity rechargeable pack using 2900mAh 18650 cells in 4S2P configuration. Integrated with I2C BMS for intelligent communication. Designed for field-proven use in military-grade devices.
Configuration: 4S2P
Dimension: 73.5×38×70.5 mm
Features: I2C BMS, smart monitoring
Weight: ~400g
Application: Military equipment
Engineered with LG MJ1 cells and a robust 10A PCB, this pack provides dependable underwater lighting performance in a compact footprint.
Configuration: 4S3P
Dimension: 74×56×70 mm (customizable)
Discharge Current: 10A
Weight: 650g
Application: Diving lights
Built with Samsung INR18650-35E cells and a high-power BMS rated for 15A discharge. This long-lasting pack is designed for continuous operation in coffee machines or industrial heating elements.
Configuration: 4S4P
Dimension: 40×148×70 mm
Discharge Current: 15A
Weight: 850g
Application: Coffee machines
Made with 28pcs 2900mAh 18650 cells in a 4S7P configuration. Offers large capacity in a compact build and includes waterproof housing for rugged environments.
Configuration: 4S7P
Dimension: 130×74×70 mm
Features: IP-rated waterproof protection
Weight: 1.4 kg
Application: Solar LED lighting
Yes, all CMB 14.8V li-ion battery packs can be tested to meet UN 38.3, IEC 62133, UL 2054, and MSDS standards. We support full documentation for global compliance and transport.
We use only high-quality cells from Samsung, LG, Panasonic, BAK, and Molicell, depending on your custom requirements.
Yes. We offer fully customized battery solutions, including size, PCB/BMS configuration (up to 15A+), shell material, wire length, connector type, and more.
Absolutely. We provide IP67/IP68-rated waterproof housings for outdoor or rugged industrial applications upon request.
Yes, we recommend using a dedicated 16.8V li-ion charger designed for 4S lithium-ion battery packs. We also supply or guide charger sourcing if needed.
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.
14.8V lithium-ion battery packs, also known as 4S (4-series) 18650 battery packs, strike an ideal balance between power, size, and weight—making them one of the most sought-after configurations in industrial sectors.
Compared to 11.1V or 7.4V packs, 14.8V offers a higher working voltage that’s perfect for moderate to high-load applications without adding excessive weight or bulk. Whether used in mobile medical equipment, solar-powered devices, military-grade electronics, or advanced robotics, these battery packs deliver stable voltage, long cycle life, and strong energy density.
At the core, the 18650 cell’s mature technology, wide availability, and proven reliability have made the 14.8V configuration a standard in many OEM and ODM battery projects.
14.8V lithium-ion battery packs—often configured as 4S using 18650 cells—have become a go-to power source for industrial and high-performance applications. Their specific voltage range (nominal 14.8V, fully charged 16.8V) strikes an ideal balance between energy density and device compatibility, making them suitable for systems that require mid-range voltage and stable discharge.
Benefits That Matter for Industrial Buyers:
Voltage Compatibility: Many industrial electronics, robotic platforms, medical devices, and LED lighting systems are designed around 4S (14.8V) configurations. This makes 14.8V packs a drop-in solution with minimal system adjustment.
Compact but Powerful: Thanks to the energy density of 18650 cells, 14.8V packs deliver high capacity in a small footprint, which is crucial for portable, underwater, or embedded applications.
Modular Design: 14.8V packs can be scaled in capacity—via 4S1P, 4S2P, 4S4P, up to 4S10P—offering flexibility for runtime and current output without altering voltage.
Cost-Performance Balance: Compared to higher-voltage systems, 14.8V provides an excellent trade-off between cost, complexity, and performance, making it widely adopted across industries.
Global Compatibility: These battery packs are commonly supported by standard protection PCBs and BMS with CAN, SMBus, or I²C protocols—allowing easy integration into smart systems.
By understanding these advantages, B2B buyers can better assess how 14.8V 18650 battery packs support their product design goals while maintaining reliability, certification potential, and commercial viability.
When sourcing a 14.8V lithium-ion battery pack, understanding the core specifications is essential for making the right decision—especially for B2B buyers seeking compatibility, safety, and performance.
The term “14.8V” refers to a 4S configuration (4 cells in series), with each 18650 cell nominally rated at 3.7V. However, peak voltage reaches 16.8V when fully charged. Depending on the pack’s design, capacities can range from 2900mAh (4S1P) to over 20Ah (4S7P), allowing flexibility for compact devices or high-drain systems.
Key specifications also include:
Discharge Rate (C-Rate): Defines how quickly the pack can deliver power. Choose a higher rate for drones or power tools.
BMS Protocols: Optional communication interfaces like SMBus, RS232, I2C, or CAN Bus are crucial for smart devices and industrial automation.
Protection Circuits: Overcharge, over-discharge, overcurrent, and short-circuit protection ensure reliability in harsh environments.
These technical parameters define the performance envelope of your battery pack—and determine whether it meets compliance, safety, and operational needs.
| Specification | Description |
|---|---|
| Voltage | 14.8V nominal (16.8V fully charged, 4S configuration) |
| Capacity Range | 2900mAh to 20Ah+ depending on 1P to 7P configuration |
| Battery Cell Type | Standard 18650 Li-ion cells from Samsung, LG, Molicel, etc. |
| Discharge Current | 4A–15A standard (higher discharge available on request) |
| BMS Protocols | SMBus, RS232, I2C, CAN Bus (optional for smart systems) |
Choosing the right configuration (e.g., 4S1P to 4S7P) helps balance energy capacity, runtime, and space constraints. This section helps you match configurations to specific application needs.
| Use Case | Recommended Configuration | Capacity Range | Key Benefit |
|---|---|---|---|
| Portable Medical Devices | 4S1P / 4S2P | 2.9Ah – 7Ah | Compact & lightweight |
| Drones & UAVs | 4S3P / 4S4P | 8.7Ah – 11.6Ah | Balance between power & weight |
| Military & Industrial Use | 4S5P / 4S6P | 14Ah – 17.4Ah | High capacity, rugged build |
| Solar Lighting / Outdoor Tools | 4S6P / 4S7P | 17.4Ah – 20.3Ah | Extended runtime, deep cycle |
Choosing the right cell and BMS is critical to ensure safety, performance, and reliability for 14.8V battery applications. Below, we list top cell options and BMS configurations trusted by professionals across industries.
| Cell Brand | Capacity / Discharge | Best Use Case |
|---|---|---|
| Samsung INR18650-35E | 3500mAh / 8A | Medical devices, solar LED, coffee machines |
| LG MJ1 | 3500mAh / 10A | Diving lights, backup systems |
| Molicel P26A / P28A | 2600–2800mAh / 25A | Drones, UAVs, robotics |
| BAK / Lishen | 2600–3000mAh / 5A–10A | Cost-effective for consumer electronics |
| BMS Type | Protection Features | Application |
|---|---|---|
| Standard PCB | Overcharge, overdischarge, short circuit | Basic devices, low current applications |
| Smart BMS (10A–15A) | All protections + data communication (I2C, SMBus, CAN) | Military, UAV, medical, high-end robotics |
| Waterproof BMS | IP67/IP68 protection, optional LED indicators | Outdoor solar, marine, lighting systems |
When exporting or integrating 14.8V lithium-ion battery packs into products for global use, safety certifications are essential—not only for legal compliance but also for earning customer trust. At CMB, we help you navigate this landscape with ease.
Many countries require certified batteries for importation and product approval. Uncertified batteries may be blocked by customs, cause insurance complications, or pose real safety risks. That’s why all our 14.8V battery packs can be tested and certified to meet regional standards.
| Certification | Region / Purpose | Description |
|---|---|---|
| UN38.3 | Global / Transport | Required for air and sea shipping of lithium batteries. |
| MSDS | Global | Material safety documentation for logistics and handling. |
| IEC 62133 | Europe, Asia | One of the most important safety standards for lithium batteries. |
| CE | EU | Ensures compliance with EU directives related to safety and environmental impact. |
| RoHS | EU | Limits hazardous substances in battery components. |
| UL 2054 / UL 1642 | U.S.A | Critical for product safety assurance in the North American market. |
| CB Scheme | Global | Facilitates international recognition of test results and standards. |
If you need support in obtaining specific certifications for your product integration or export process, contact our engineering team for tailored compliance support.
When designing or sourcing a 14.8V 18650 lithium battery pack, its physical size and enclosure design can be just as important as voltage and capacity. Whether it’s fitting a compact medical device or powering an outdoor industrial unit, precise dimensions and a durable casing ensure seamless integration and long-term reliability.
Each 14.8V pack configuration—like 4S1P, 4S2P, or 4S4P—directly impacts the size, weight, and shape of the battery. For example, a 4S1P pack is ideal for space-limited designs, while a 4S7P pack is larger and better suited for high-energy demands like solar lights or underwater lighting systems.
We work closely with customers to optimize space usage without compromising performance.
| Pack Configuration | Typical Dimensions (mm) | Application Notes |
|---|---|---|
| 4S1P (2900–3500mAh) | 38×20×132 | Compact for medical or audio devices |
| 4S2P (5800–7000mAh) | 73.5×38×70.5 | Medium size for handheld equipment |
| 4S3P–4S4P (10–14Ah) | 74×56×70 to 148×40×70 | Used in robotics or portable tools |
| 4S7P and above (20Ah+) | 130×74×70+ | Best for solar, diving, or outdoor power packs |
Custom Enclosure Options
We offer multiple enclosure and finishing options to match your specific project requirements:
PVC Heat Shrink (lightweight and cost-effective)
ABS / PC Plastic Housing (for structure & impact resistance)
Metal Case (for rugged or industrial applications)
IP67 / IP68 / IP69K Waterproof Designs (for underwater, marine, and harsh environments)
If you’re working with dimensional constraints or require a fully enclosed custom shell, contact our design team to request a free design review.
At Junda Battery, every 14.8V 18650 battery pack begins with a deep understanding of your application needs. Whether you require a compact pack for drones or a high-capacity solution for industrial tools, we ensure that both performance and safety are built in from day one.
1. Requirement Analysis
We work with you to define electrical specifications (voltage, current, capacity), dimensional limits, expected operating environment (temperature, waterproofing, vibration), and any regulatory compliance needs (e.g. UN38.3, IEC 62133).
2. Component Selection
Based on your goals—cost-efficiency, high energy density, or long cycle life—we select matching cell brands (Samsung, LG, Molicel, etc.) and design a suitable BMS with basic protections or communication protocols like CAN or SMBus.
3. Design and Engineering
Our engineers design the internal structure of the pack, including layout, cell arrangement, wiring routes, and cooling considerations. We provide 2D and 3D drawings for review before prototyping.
4. Sample Production and Validation
Prototypes are assembled in a controlled environment and tested for voltage accuracy, capacity, internal resistance, balance function, and overall safety. Test reports can be provided for your review or certification purposes.
5. Mass Production and Quality Control
Once the sample is approved, we proceed with batch production. All packs go through strict inspection processes—cell matching, welding quality, aging tests, and functional checks—to ensure stability and reliability.
6. Packaging and Shipping
Each battery pack is packed according to international shipping regulations (IATA, UN3480) and can be shipped via air, sea, or land. We support EXW, FOB, and DDP terms based on your logistics preferences.
Timeline Overview
Sample lead time: 7–10 working days
Production lead time: 15–25 working days (after sample approval)
Certifications support: UN38.3, IEC62133, CE, RoHS, MSDS
Documentation provided: test reports, design files, user guides
We also offer NDA-secured development and ongoing engineering support throughout the product lifecycle.
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:
14.8V battery packs power diagnostic monitors, portable ventilators, infusion pumps, and surgical tools, offering compact size and reliable discharge.
With waterproof BMS and high discharge current, these batteries are ideal for underwater lighting, acoustic systems, and ROVs.
Used in field-ready communication systems, targeting devices, and rugged portable electronics. Often equipped with smart BMS and robust casing.
Used in premium portable coffee makers for outdoor and travel use, requiring stable output and longer runtime.
Deployed in solar-powered LED poles and portable lighting systems, where 14.8V provides a compact energy reservoir with stable output.
Many advanced smart speakers with enhanced sound output use 14.8V battery packs for improved bass and runtime.
1. The Cells You Choose
Not all cells are created equal. High-end brands like Samsung, LG, or Molicel offer better cycle life, energy density, and safety, but they come with a higher price tag. If you’re building for medical, military, or underwater use, premium cells are worth the investment. On the other hand, standard Chinese OEM cells may reduce cost but could affect lifespan and reliability in harsh conditions.
2. Capacity and Cell Configuration
A 4S1P pack with 4 cells is going to cost far less than a 4S6P pack with 24 cells. That’s because more cells mean more materials, more welding, and more quality checks. If your application demands long run-time or high output power, expect the price to increase with capacity.
3. BMS Complexity
The battery management system (BMS) plays a huge role in cost. A basic BMS with overcharge, overdischarge, and short circuit protection is economical. But once you add high-current discharge, CAN/RS485 communication, or fuel gauging, the price goes up. These features are essential in drones, communication systems, and smart devices—but they’re not always necessary for low-power applications.
4. Shell, Waterproofing, and External Design
PVC wrapping is cheap and suitable for indoor or enclosed use. But if your battery pack needs a rigid plastic or metal shell, or must meet IP67/IP68 waterproof standards, custom casing will increase both tooling and unit costs. These features are common in marine, mining, or industrial outdoor projects.
5. Certifications and Testing
Certifications like UN38.3, CE, UL2054, and IEC62133 aren’t just formalities—they require real testing and documentation, which adds cost. If you’re exporting or serving regulated industries, these are often required. We support testing for both prototypes and mass production runs.
6. Order Volume and Delivery Terms
Small orders typically cost more per unit due to setup, labor, and material procurement. If you’re ordering less than 100 pcs, expect a higher unit cost. Additionally, faster lead times (e.g. rush delivery) or special logistics requests will also impact the final price.
Conclusion
There’s no one-size-fits-all price for a 14.8V 18650 battery pack. The final cost depends on your choices in materials, features, design, and volume. At Junda, we help you find the most cost-effective solution by balancing your technical requirements with your budget goals.
14.8V 18650 lithium battery packs offer stable power, flexible configurations, and high compatibility with demanding applications. From cell selection to casing design and certification, each part matters. At Junda, we tailor battery packs to your exact needs—efficient, safe, and ready for global use.
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:
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.
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.
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.
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.
Share your voltage, size, application, and quantity needs—we’ll assess your project quickly.
Our engineers will optimize the design, confirm details, and provide samples if needed.
Once approved, we start production and arrange fast, secure shipping to your destination.
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.
At JUNDA, we make customization easy. Follow these 3 simple steps to start today:
Send your battery requirements — voltage, capacity, casing type, or upload drawings/photos.
We’ll evaluate your specs and recommend the best configuration. A detailed quote will be sent within 24 hours.
After approval and deposit, we start production. Shipping and tracking will be arranged for fast, secure delivery.
