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Custom 18650 Battery Pack 2S4P 14Ah
The 18650 2S4P 7.3V 14Ah Li-ion Battery Pack is designed for electronic equipment that requires higher capacity, stable voltage output, and longer operating time. Built with 18650 cells in a 2S4P configuration, this battery pack provides 7.3V nominal voltage and 14Ah capacity for industrial devices, portable instruments, monitoring systems, robotics, security equipment, and custom rechargeable electronic products.
As a professional custom lithium battery manufacturer, LithoTop provides OEM/ODM 18650 battery pack solutions with customized PCM or BMS protection, connectors, wire lengths, NTC, labels, insulation structure, shrink wrap, casing, and packaging.
Additional information
| Product Type | Lithium Ion Battery Pack |
|---|---|
| Model number | 18650-2S4P |
| Voltage (Nominal) | 7.3V |
| Charge Voltage | 8.4V |
| Capacity (Nominal) | 14Ah |
| Dimensions | Max. 19.5*73.5*67mm |
| Constant Discharge Current | Typically 0.2C-0.5C |
| Working Temperature | -20°C~60°C |
| Certification | ISO9001/ISO14001 |
Professional Lithium Ion Battery Solutions
LithoTop designs and manufactures premium lithium-ion battery solutions using Grade A cells and self-developed BMS technology. From prototype to mass production, we provide customized OEM & ODM battery packs with superior safety, long cycle life, and reliable performance for robotics, medical devices, wearable electronics, IoT, energy storage, and industrial applications.
The 18650 2S4P 7.3V 14Ah Li-ion battery pack is designed for products that need a longer runtime than small single-cell or 2S1P battery packs. The 2S configuration provides a higher working voltage platform, while the 4P parallel structure increases total capacity and supports more stable power delivery for extended operation.
With 14Ah capacity, this battery pack is suitable for equipment that needs dependable rechargeable power for long working cycles, field operation, wireless communication, data logging, motor control, display systems, sensors, and standby functions. The cylindrical 18650 cell structure also provides mature pack assembly options and good mechanical stability for industrial and portable applications.
LithoTop applies strict production control during cell selection, voltage matching, capacity matching, internal resistance testing, spot welding, PCM assembly, insulation protection, aging verification, and final quality inspection. These processes help ensure stable pack performance, reliable safety protection, and consistent mass production quality.
- 2S4P High-Capacity Configuration
Combines two cells in series and four cells in parallel to provide 7.3V nominal voltage and 14Ah capacity. - 18650 Cylindrical Cell Structure
Uses mature cylindrical lithium-ion cell technology for reliable pack assembly and stable performance. - 14Ah Long Runtime Capacity
Suitable for devices that require extended working time, field operation, or long standby performance. - PCM Protection
Supports protection against overcharge, over-discharge, over-current, short circuit, and abnormal operation. - Strict Cell Matching
Voltage, capacity, and internal resistance are matched to improve pack consistency and safety. - Reliable Pack Assembly
Controlled spot welding, nickel strip selection, insulation protection, and aging inspection help improve pack reliability. - Custom Battery Pack Solutions
Supports customized connectors, wire length, NTC, fuel gauge, labels, casing, shrink wrap, and packaging for OEM projects.
- Industrial monitoring equipment
- Portable measuring instruments
- Field data loggers
- Inspection robots
- Security and alarm systems
- Wireless communication devices
- Marine monitoring terminals
- Portable lighting equipment
- Smart agriculture devices
- Custom rechargeable electronic systems
Battery Cell Choices
LithoTop offers a complete range of cylindrical lithium-ion cells to meet different power, capacity, and performance requirements. Our engineering team helps customers select the most suitable cell based on energy density, discharge current, cycle life, and application environment.
| Cell Type | Typical Capacity | Key Advantages | Typical Applications |
|---|---|---|---|
| 14500 | 600–1200mAh | Compact size, lightweight | Portable electronics, medical devices, flashlights |
| 18650 | 1800–3500mAh | Cost-effective, mature technology | Robotics, IoT devices, industrial equipment |
| 21700 | 4000–6000mAh | Higher capacity and energy density | AGVs, energy storage, power tools, e-mobility |
| 26650 | 3000–6000mAh | High discharge capability | Industrial equipment, backup power systems |
Battery Assemble
Flexible Lithium-Ion Battery Pack Customization
Every application has unique power requirements. At LithoTop, we provide complete custom lithium-ion battery pack solutions designed around your product’s voltage, capacity, size, discharge rate, connector type, and communication requirements. Whether you need a single cylindrical cell, a protected battery, or a fully assembled battery pack, our engineering team can customize every component to perfectly match your device.
Customization Options
- Battery Cells: 18650, 21700, Li-ion cylindrical cells
- Voltage: 3.6V, 3.7V, 7.2V, 7.4V, 10.8V, 11.1V, 14.4V, 14.8V, 22.2V, 24V, 36V, 48V and more
- Capacity: From mAh to over 50Ah according to your application
- Battery Configuration: 1S–20S, multiple series and parallel
- PCM / BMS: Hardware BMS, Smart BMS
- Connectors: JST, Molex, XT30, XT60, and customized connectors
- Cables: Customized wire length, AWG size, silicone or PVC cables
- Packaging: Heat shrink, PVC, plastic or aluminum case
- Branding: Custom labels, laser printing and OEM logo service
With years of experience in custom lithium-ion battery manufacturing, LithoTop helps customers shorten development cycles, reduce engineering costs, and deliver reliable battery solutions for industrial, medical, consumer electronics, robotics, IoT, security systems, power tools, and many other demanding applications.
Complete Custom Lithium-Ion Battery Pack Solutions
LithoTop provides comprehensive OEM and ODM lithium-ion battery solutions, covering every stage from premium battery cells to fully customized battery packs. Whether your project requires a single cylindrical cell, a protected battery with PCB, or a complete battery pack with connectors and housing, our engineering team delivers reliable solutions tailored to your exact application.
We offer flexible customization services including battery cell selection, BMS design, PCB protection circuits, wire harnesses, connectors, heat-shrink packaging, and complete battery pack assembly. Every battery pack is engineered to meet specific requirements for voltage, capacity, discharge rate, dimensions, communication protocols, and safety standards.
To ensure maximum compatibility, LithoTop supports a wide range of industry-standard connectors including JST, Molex, XT30, XT60, SM, PH, XH, KET, and many other customized interfaces. Our hardware and software engineering teams also develop custom protection PCBs and smart BMS solutions with overcharge, over-discharge, over-current, short-circuit, temperature protection, cell balancing, Bluetooth, CAN Bus, SMBus, UART, and other intelligent communication functions.
With strict incoming material inspection, automated production equipment, and 100% functional testing, every custom lithium-ion battery pack is manufactured to deliver high safety, stable performance, long cycle life, and reliable operation for demanding applications worldwide.
Our Customization Includes
- Premium 18650 & 21700 Lithium-ion Cells
- Hardware BMS & Smart BMS Design
- Custom PCB Protection Circuit Development
- Wire Harness & Connector Customization
- Heat Shrink & Battery Housing Assembly
- Battery Pack Mechanical Design
- OEM Logo & Laser Printing
- Communication Protocol Integration: CAN Bus / UART
- Certification Support: UN38.3, CE, RoHS, IEC62133, UL
- One-Stop OEM & ODM Battery Manufacturing
Customer Development Story
Discover how we helps global customers solve real-world battery challenges through customized lithium battery solutions.
01 – Norway Aquaculture Water Monitoring Terminal Project
A Norwegian aquaculture technology company was developing a floating water monitoring terminal used near offshore fish farms. The device needed to power water temperature sensors, dissolved oxygen measurement circuits, a wireless communication module, GPS positioning, and periodic data logging. Because the equipment was deployed far from daily maintenance teams, the customer required a rechargeable battery pack with longer runtime and stable output in a sealed enclosure.
The customer contacted LithoTop after testing a smaller 2S battery pack that could power the prototype but required charging too frequently during field trials. They needed a higher-capacity 7.3V battery pack that could fit the internal battery compartment while supporting wireless transmission peaks and long standby operation.
LithoTop reviewed the terminal’s sensor sampling cycle, wireless upload interval, GPS activation time, standby current, charging method, enclosure size, cable routing, and expected outdoor usage pattern. After evaluation, LithoTop recommended the 18650 2S4P 7.3V 14Ah Li-ion Battery Pack. The 2S4P configuration provided the customer with a stronger runtime reserve while maintaining a practical pack structure for their monitoring terminal.
During sample development, LithoTop optimized the pack layout, PCM protection design, nickel strip structure, wire length, connector position, insulation layer, and outer shrink wrap. Sample packs were tested through continuous sensor operation simulation, wireless pulse discharge testing, GPS activation testing, charging compatibility checking, voltage stability testing, storage testing, and installation fit validation inside the sealed housing.
Before pilot production, both teams confirmed samples, pack dimensions, connector specifications, protection parameters, label details, packaging method, and batch inspection standards. The final battery solution helped the monitoring terminal achieve longer field operation and reduced maintenance frequency. For the customer, this improved data continuity, lowered service costs, and supported a more reliable aquaculture monitoring system.
02 – Brazil Portable Road Inspection Camera Project
A Brazilian infrastructure inspection company was developing a portable road inspection camera used by maintenance teams to record pavement cracks, bridge surfaces, and roadside equipment conditions. The device needed to power a camera module, LED lighting, storage board, display screen, and wireless upload function. The customer’s previous battery pack caused short working time, especially when the camera and lighting system operated together during evening inspections.
The customer approached LithoTop because they needed a custom 18650 battery pack with higher capacity, stable 7.3V output, durable connector assembly, and reliable protection design for field use. LithoTop analyzed the camera’s average working current, LED lighting load, wireless upload peak, charging circuit, handle structure, pack installation space, and expected daily inspection schedule.
Based on this analysis, LithoTop recommended the 18650 2S4P 7.3V 14Ah Li-ion battery pack. The 14Ah capacity helped support longer inspection sessions, while the 2S voltage platform matched the customer’s power system more efficiently than a single-cell solution.
During prototype development, LithoTop adjusted the pack structure, PCM layout, cable outlet direction, connector type, insulation protection, and label position. Sample packs were tested through camera recording simulation, LED full-load testing, wireless upload pulse testing, vibration handling checks, charge-discharge cycling, temperature observation, and installation fit evaluation.
Before production approval, the customer confirmed approved sample performance, connector durability, battery dimensions, packaging details, and incoming inspection standards. LithoTop then controlled production according to the confirmed golden sample and pack assembly requirements.
The final battery pack helped the road inspection camera operate longer during field work and reduced the need for spare batteries during daily maintenance routes. For the customer, this improved inspection efficiency, reduced downtime, and made the device more practical for infrastructure teams working across large service areas.
Why Choose LithoTop for 18650 2S4P Li-ion Battery Pack Solutions?
A reliable 18650 2S4P Li-ion battery pack requires more than connecting eight cells together. Battery performance depends on cell quality, voltage consistency, internal resistance matching, parallel group balance, PCM or BMS design, nickel strip selection, spot welding quality, insulation protection, connector reliability, and final aging inspection.
LithoTop supports customers from sample design to mass production with Grade-A cell sourcing, customized protection circuit design, strict production inspection, and flexible OEM/ODM assembly. Our engineering team can help evaluate operating current, installation space, charging method, protection requirements, connector type, NTC requirement, and real application conditions before confirming the final battery design.
Manufacturing Capability
LithoTop has strong lithium battery manufacturing capability, combining advanced production equipment, experienced engineering teams, strict quality control, and flexible OEM & ODM services. From cell selection to final battery pack assembly, every process is carefully managed to ensure stable quality, reliable performance, and consistent mass production.
120,000+ Daily Production Capacity
LithoTop supports stable large-scale production for LiPo batteries, Li-ion battery packs, LiFePO₄ batteries, and customized battery solutions, helping customers meet both small-batch development and mass production needs.
Advanced Battery Pack Assembly Lines
Our production lines are equipped for cell sorting, spot welding, soldering, PCM/BMS assembly, insulation protection, labeling, aging, and final packaging, ensuring efficient and standardized battery production.
In-House BMS & PCB Production
LithoTop has its own BMS manufacturing facility with 10 production lines, supporting 1S–25S, 1A–300A battery protection solutions for Li-ion, LiFePO₄, and sodium battery packs.
Automated Cell Matching
Before battery pack assembly, cells are carefully matched by voltage, capacity, and internal resistance to improve battery consistency, safety, and cycle life.
Precision Welding Technology
We use professional spot welding and nickel strip connection processes to ensure strong electrical conductivity, low resistance, and stable high-current performance.
Strict In-Process Quality Control
During production, our quality team monitors key processes including welding quality, PCM/BMS connection, insulation, voltage consistency, appearance, and structural assembly.
Comprehensive Testing Capability
Each battery undergoes voltage testing, internal resistance testing, capacity testing, charge/discharge testing, aging tests, and final inspection before shipment.
OEM & ODM Customization
LithoTop supports customized voltage, capacity, battery structure, discharge current, connectors, wire length, housing, labels, packaging, and communication protocols.
Production Process
- Incoming Material Inspection: Cells, PCM/BMS, wires, connectors, nickel strips, and packaging materials are inspected before production.
- Cell Sorting & Matching: Cells are matched by voltage, capacity, and internal resistance to ensure pack consistency.
- Battery Pack Assembly: Cells are connected through professional welding, soldering, and insulation processes.
- PCM/BMS Integration: Protection boards are installed and tested according to battery safety requirements.
- Aging & Performance Testing: Batteries are tested under charging and discharging conditions to verify stability.
- Final Inspection: Appearance, labeling, voltage, capacity, polarity, and packaging are checked before shipment.
- Safe Packaging & Delivery: Mass Production Batteries are packed according to transportation requirements with support for UN38.3 and MSDS.
Quality Assurance
LithoTop follows strict quality management throughout the entire manufacturing process. Every battery is tested before shipment to ensure true capacity, stable voltage output, low internal resistance, safe operation, and reliable long-term performance.
Why It Matters for Customers
With strong manufacturing capability and in-house BMS development, LithoTop helps customers reduce communication costs, shorten product development time, improve production consistency, and receive more reliable customized battery solutions from prototype to mass production.
More Customer Cooperation Cases
LithoTop has successfully delivered customized lithium-ion battery pack solutions to customers in more than 30 countries. From prototype development to mass production, our engineering team helps customers solve complex power challenges across industrial, medical, robotics, and energy storage applications.
AGV & Autonomous Mobile Robots
A European AGV manufacturer required a high-capacity lithium-ion battery pack with CAN communication, stable discharge performance, and long cycle life. LithoTop developed a customized 24V battery pack with an intelligent BMS, helping improve operating time and reduce maintenance costs.
Medical Diagnostic Equipment
A medical device company needed a compact battery pack with exceptional reliability and safety for portable diagnostic equipment. LithoTop engineered a customized lithium-ion solution using Grade A cells and an in-house BMS, ensuring stable power output and consistent performance throughout the product lifecycle.
Industrial Inspection Robot
An industrial automation customer required a lightweight, high-discharge battery pack capable of supporting continuous operation in demanding environments. LithoTop provided a customized 21700 battery pack with intelligent protection, enabling longer runtime and enhanced operational efficiency.
Handling Precautions & Guidelines
Find answers to the most common questions about ordering, shipping, certifications, and working with lithotop as your battery partner.
After sample approval, all production parameters are standardized. Every production batch follows the same BOM, manufacturing process, and quality inspection procedures. Batteries undergo voltage, capacity, internal resistance, aging, and final performance testing before shipment to ensure consistency.
LithoTop provides custom lithium-ion battery packs using 15270, 14500, 18650, 21700, 26650 and other cylindrical cells. We support customized voltage, capacity, discharge current, connectors, communication protocols, housing, and BMS solutions based on your project requirements.
Yes. Our engineering team can evaluate your existing battery pack and recommend an equivalent or improved battery solution while maintaining the same dimensions, connector, communication protocol, and mechanical structure whenever possible. This helps reduce redesign costs, shorten qualification time, and ensure a smooth supplier transition.
Yes. LithoTop designs high-discharge lithium-ion battery packs with high continuous and peak discharge capability for AGVs, robots, drones, industrial automation, and power equipment. We can recommend the most suitable cell based on your power requirements.
Engineering samples are typically completed within 7–15 working days. Mass production usually requires 15–30 working days depending on battery complexity, material availability, and order quantity.
Our battery packs can support CE, RoHS, UN38.3, MSDS, IEC62133, CB, KC, and other international certifications depending on your market and application requirements.
MOQ depends on the battery configuration and customization level. We support prototype development, engineering samples, pilot production, and large-volume manufacturing to help customers throughout the product development process.
Please provide your required voltage, capacity, maximum discharge current, battery dimensions, connector type, communication requirements, operating environment, and expected application. Our engineers will recommend the most suitable battery solution.
Yes. LithoTop has an in-house BMS manufacturing facility capable of developing intelligent protection boards from 1S to 25S. We support CAN, SMBus, RS485, Bluetooth, UART, and other communication protocols.
LithoTop combines premium Grade A battery cells with our own BMS manufacturing capability, enabling us to provide complete battery solutions from a single supplier. This helps reduce communication costs, shorten development cycles, and ensure better compatibility between battery cells, protection systems, and customer applications.
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Our Factory Insight
LithoTop operates advanced lithium battery manufacturing facilities equipped with automated production lines, precision testing equipment, and strict quality control systems. From cell selection to battery assembly and final inspection, every process is carefully managed to ensure stable performance, reliable quality, and high production efficiency. With experienced engineers and strong OEM/ODM capability, we provide customized battery solutions for customers worldwide.
Global Certifications & Compliance Support
LithoTop provides comprehensive certification support for custom lithium batteries to help customers accelerate product development and global market entry. From prototype verification to mass production, our engineering team assists with battery compliance, transportation documentation, and international safety standards, reducing certification risks and shortening your project timeline.
Industry News Insight
Stay updated with the latest lithium battery industry news, product innovations, technology insights, and application trends from LithoTop. Explore expert articles, battery guides, and industry updates to learn more about custom lithium battery solutions, energy storage, UAV batteries, wearable device batteries, and advanced power technologies.
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