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Custom 18650 3200mAh battery pack
The 18650 3.7V 3200mAh Battery Pack is a rechargeable cylindrical lithium-ion battery solution designed for portable electronic devices that require reliable capacity, stable voltage output, and longer operating time. With a 3.7V nominal voltage and 3200mAh capacity, this battery pack is suitable for handheld instruments, wireless monitoring devices, smart controllers, portable medical electronics, IoT equipment, inspection tools, and other rechargeable products.
As a professional custom lithium battery manufacturer, LithoTop provides OEM/ODM 18650 battery pack solutions with customized PCM protection, connectors, wire lengths, NTC, labels, insulation structures, shrink wrap, casing, and packaging according to customer project requirements.
Additional information
| Product Type | Lithium Ion Battery Pack |
|---|---|
| Model number | 18650-1S1P |
| Voltage (Nominal) | 3.7V |
| Charge Voltage | 4.2V |
| Capacity (Nominal) | 3200mAh |
| Dimensions | Max. 19*71.5mm |
| Constant Discharge Current | Typically 0.2C-1C |
| 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 3.7V 3200mAh battery pack is designed for applications that need more runtime than smaller pouch cells while maintaining a compact cylindrical battery structure. The mature 18650 cell platform provides a practical combination of energy density, mechanical stability, production consistency, and flexible pack integration.
With 3200mAh capacity, this battery pack can support control boards, wireless modules, displays, sensors, LED circuits, data logging systems, and standby functions. It is suitable for product developers who need a rechargeable 3.7V battery with dependable daily operating time and flexible connector or protection customization.
LithoTop applies strict production control during cell selection, voltage testing, capacity verification, internal resistance inspection, spot welding, PCM assembly, insulation protection, aging verification, and final performance testing. These processes help ensure stable battery performance and consistent mass production quality.
- 3200mAh Reliable Capacity
Provides longer operating time for portable electronics, wireless devices, and handheld equipment. - 18650 Cylindrical Cell Platform
Uses mature lithium-ion cell technology for stable performance and reliable battery pack assembly. - PCM Protection Available
Supports overcharge, over-discharge, over-current, and short-circuit protection according to project requirements. - Low Self-Discharge Performance
Suitable for devices requiring standby operation, periodic use, and reliable stored energy. - Strict Cell Quality Control
Voltage, capacity, internal resistance, and appearance are inspected to improve production consistency. - Custom Battery Pack Assembly
Supports customized connectors, wire length, PCM, NTC, labels, insulation, casing, shrink wrap, and packaging.
- Handheld measuring instruments
- Wireless monitoring devices
- Portable testing equipment
- Smart home controllers
- IoT sensor gateways
- Portable medical electronics
- Security devices
- Electronic inspection tools
- Rechargeable lighting equipment
- Custom portable electronics
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 – Sweden Portable Cable Fault Tester Project
A Swedish electrical maintenance equipment company was developing a portable cable fault tester for service technicians working in commercial buildings and industrial facilities. The device needed to power a measurement circuit, LCD display, buzzer, memory module, and Bluetooth communication function. Their original battery could operate the prototype, but technicians needed to recharge the tester too frequently during full-day service work.
The customer contacted LithoTop because they needed a higher-capacity 3.7V rechargeable battery that could fit into the existing handheld enclosure without increasing product size. They also required a customized connector and cable outlet position because the PCB and battery compartment were separated by a narrow internal channel.
LithoTop reviewed the tester’s measurement current, display-on time, Bluetooth transmission frequency, standby consumption, charging circuit, available battery space, and daily field usage. After evaluation, LithoTop recommended the 18650 3.7V 3200mAh Battery Pack. The 3200mAh capacity provided a significant runtime improvement while the cylindrical cell structure matched the available internal compartment.
During sample development, LithoTop optimized the PCM protection, connector type, wire length, insulation sleeve, and cable routing. Sample batteries were tested through repeated measurement cycles, display runtime testing, Bluetooth data transfer, charging compatibility verification, voltage stability evaluation, and installation fit checking.
Before production approval, both teams confirmed the sample, battery dimensions, connector orientation, cable length, protection parameters, labeling details, and packaging requirements. The final battery solution allowed technicians to use the tester for longer service sessions with fewer charging interruptions. For the customer, this improved field efficiency and made the instrument more practical for professional maintenance teams.
02 – New Zealand Electronic Fishing Scale Project
A New Zealand outdoor equipment company was developing a rechargeable electronic fishing scale for recreational and tournament anglers. The device combined a load sensor, digital display, memory function, Bluetooth synchronization, backlight, and waterproof control board. The customer wanted the product to provide long standby time because users might carry the scale for several days during fishing trips without access to charging facilities.
The company initially tested a smaller lithium polymer battery, but the operating time became limited when the display backlight and Bluetooth functions were used frequently. They approached LithoTop for a cylindrical battery solution that could provide more energy while fitting into the handle section of the waterproof enclosure.
LithoTop analyzed the scale’s standby current, load measurement cycle, display power consumption, Bluetooth transmission load, charging method, handle diameter, and waterproof enclosure structure. Based on this evaluation, LithoTop recommended the 18650 3.7V 3200mAh battery pack as a longer-runtime power solution.
During prototype development, LithoTop adjusted the wire outlet direction, connector position, PCM design, insulation structure, and outer sleeve to simplify assembly inside the handle. Sample batteries were tested through repeated weighing cycles, continuous display operation, Bluetooth synchronization, standby testing, charging verification, vibration handling checks, and installation fit evaluation.
The customer then performed outdoor field trials during multi-day fishing trips and confirmed that the improved battery capacity significantly reduced recharge frequency. Before mass production, both teams finalized the approved battery sample, cable configuration, connector durability, labeling, packaging, and incoming inspection requirements.
The final battery solution helped the customer provide longer standby and operating time without redesigning the waterproof product housing. For the customer, this improved real-world usability and created a stronger product experience for anglers using the scale away from regular charging points.
Why Choose LithoTop for 18650 3.7V 3200mAh Battery Pack Solutions?
A reliable 18650 battery pack requires more than selecting a suitable cylindrical cell. Battery performance also depends on cell consistency, PCM protection design, spot welding quality, insulation structure, connector reliability, cable routing, charging compatibility, and final aging inspection.
LithoTop supports customers from prototype development to mass production with Grade-A cell sourcing, strict quality control, flexible pack customization, and professional engineering support. Our team can help evaluate operating current, battery cavity, charging method, connector type, wire length, NTC requirement, protection parameters, and final product assembly before confirming the battery solution.
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.
Related Products
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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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