Kingchi 3.6V 18650 Cylindrical Cells | 2000mAh-3800mAh OEM Lithium Battery Manufacturer
Kingchi 3.6V 18650 Cylindrical Cells | 2000mAh-3800mAh OEM Lithium Battery Manufacturer
Bulk source Kingchi 3.6V 18650 cylindrical cells (2000mAh-3800mAh). Custom battery pack OEM/ODM manufacturing and high-volume industrial wholesale.
Flexible MOQ and competitive pricing for bulk orders!
Description
Kingchi manufactures high-performance 3.6V 18650 cylindrical Li-ion rechargeable cells in capacities ranging from 2000mAh to 3800mAh. Engineered for industrial procurement, these cells provide reliable power for consumer electronics, custom battery packs, and commercial LED lighting systems.
As a dedicated volume manufacturer, we supply global wholesalers, electronics distributors, and OEM assembly facilities. Our manufacturing processes focus on batch uniformity, capacity consistency, and long-term electrochemical stability. This ensures reliable integration into larger, multi-cell battery configurations.
Our factory offers scalable production, customizable outer sleeves, and direct-to-port export logistics. This approach minimizes lead times and procurement friction for international commercial importers.
Commercial Application Scenarios for 3.6V 18650 Lithium-Ion Cells
Custom Battery Pack Assembly and Configuration
Industrial battery pack assemblers require highly matched cells to build multi-cell arrays in series or parallel configurations. These 3.6V nominal cells provide the foundational build blocks for light electric vehicles, medical equipment, and backup power banks. Using matched-impedance cells reduces cell imbalance during field operations, extending the functional lifespan of the finished pack. We assist pack assemblers with bulk cell matching to streamline their custom battery pack OEM manufacturing operations.
Consumer Electronics and High-Volume Devices
Modern consumer electronics require predictable power densities within compact physical footprints. Our cylindrical cells fit standard 18650 brackets and battery compartments, making them suitable for hand-held tools, mass-market power banks, and portable computing equipment. The standardized form factor allows product engineers to design battery compartments with predictable mechanical tolerances.
Commercial and Industrial LED Lighting Systems
Emergency backup lighting, high-intensity portable work lights, and municipal solar pathway illumination systems depend on reliable electrochemical storage. Kingchi 3.6V cylindrical cells provide continuous voltage output, ensuring uniform light luminosity during discharge cycles. The durable internal chemistry is designed for cycling profiles typical in remote or unattended industrial lighting installations.
Technical Features & Performance Standards
Voltage Stability and Energy Density
Kingchi 18650 cells feature a stable nominal voltage of 3.6V and charge up to a maximum voltage of 4.2V. With energy outputs ranging from 7.2Wh (2000mAh) to 13.68Wh (3800mAh), sourcing managers can match cell capacities to specific device current-draw requirements. This precise voltage curve prevents premature low-voltage cutoffs in sensitive industrial electronics.
Internal Resistance and Heat Dissipation
The cylindrical steel casing of the 18650 cell functions as a protective container and a thermal conductor. Low internal resistance minimizes heat generation during high-rate discharge cycles. This characteristic reduces the cooling load required for custom enclosed battery packs and improves overall system safety during extended operations.
Mechanical Integrity and Vibration Resistance
Our cells are manufactured with reinforced positive terminal caps and pressure relief vents. The outer steel casing is built to withstand mechanical stress, vibration, and drop impacts typical in industrial work environments. This robust design makes them suitable for use in rugged field equipment, outdoor power tools, and high-vibration applications.
OEM/ODM Customization & High-Volume Cell Assembly
Custom Sleeve Insulation and Technical Labeling
For distributors and device manufacturers seeking proprietary branding, we offer customizable shrink sleeve options. We print custom technical specifications, model numbers, barcodes, and corporate branding directly onto the external insulation. This service simplifies inventory tracking, ensures compliance with regional labeling laws, and enhances brand visibility for wholesalers.
Tab Welding and Terminal Configurations
To support rapid assembly lines, Kingchi can supply cells with pre-welded nickel tabs in standard or custom configurations. We offer spot-welded U-tabs, Z-tabs, or custom-shaped pure nickel strips designed for immediate soldering. This processing step reduces preparation labor at your assembly facility and prevents thermal damage to the cell caused by improper field welding.
High-Volume Export Packing and Shipping Optimization
We package our bulk cells in heavy-duty, partitioned insulating trays to prevent physical friction or short circuits during transit. Outer packaging features standardized industrial carton boxes engineered for optimal palletization. We maximize container space to lower per-unit freight costs for ocean and air logistics, helping distributors maintain competitive pricing.
Technical Specifications & Ordering Parameters
Our production lines utilize automated testing equipment to verify the electrical and mechanical tolerances of every manufacturing run. The table below outlines the core product specifications for our 3.6V cylindrical Li-ion cell lineup:
| Technical Specifications | Commercial Standards & Details |
|---|---|
| Cell Type | Cylindrical Li-ion Rechargeable Cell |
| Nominal Voltage | 3.6V |
| Maximum Charge Voltage | 4.2V |
| Capacity Options (Energy) | 2000mAh (7.2Wh) / 2600mAh (9.36Wh) / 3000mAh (10.8Wh) / 3800mAh (13.68Wh) |
| Main Material | Lithium-ion chemistry with steel external casing |
| Compliance Status | Compliant with applicable international standards upon request |
| MOQ (Minimum Order Quantity) | Varies by capacity and customization requirements; contact sales |
| Lead Time | Standard production schedules run 15–30 days depending on order volume |
| Commercial Applications | Consumer electronics, power banks, custom packs, LED lighting |
Executive Sourcing & Manufacturing Statement
“Our industrial buyers prioritize batch-to-batch consistency and reliable delivery schedules over short-term price cuts. At Kingchi, we focus our engineering resources on precise cell balancing and strict internal resistance matching. By controlling electrochemical tolerances at the factory floor, we eliminate cell mismatch issues before they reach your assembly line. This rigorous approach reduces warranty claims and increases the operating life of your final products.”
— Director of Quality Control, Kingchi Power
Quality Control & Factory Operations
Incoming Quality Control (IQC)
We test all incoming raw materials, including high-purity lithium formulations, separator membranes, and outer steel casings, before production begins. Any materials that fall outside our technical tolerances are rejected. This step ensures that raw material variations do not affect the performance of the finished cells.
In-Process Quality Control (IPQC)
Automated sensors monitor critical production steps, including electrode coating thickness, winding tension, and electrolyte injection volume. Real-time monitoring allows our technicians to make immediate adjustments. This continuous oversight maintains tight dimensional and electrochemical tolerances throughout the production run.
Final Quality Control (FQC) & Capacity Grading
Every production batch undergoes mandatory capacity grading, high-temperature aging trials, and internal resistance testing. We group our cells into tight tolerance bands to ensure they perform consistently. Our facility uses standard acceptable quality limits (AQL) to verify that all bulk shipments meet shipping specifications before leaving the factory.
Bulk Sourcing FAQ
Q: Can Kingchi supply fully assembled custom battery packs using these 18650 cells?
A: Yes. In addition to supplying individual cells, we design, assemble, and test custom multi-cell battery packs in various series/parallel configurations. Our team can integrate protective circuit (PCM/BMS) to meet your voltage and current requirements. For example, we supply complete systems like our 44.4V bulk battery pack assembly to simplify your integration process.
Q: What is the standard packaging method to ensure safety during sea or air transport?
A: We pack our cells in customized, flame-retardant cellular plastic trays that physically isolate each cell. These trays are placed inside thick cardboard boxes with internal insulation. The outer cartons are then palletized, shrink-wrapped, and strapped to prevent movement during transit, ensuring safe delivery and compliance with international transport regulations.
Q: Can we request custom terminal tabs welded to the cells for bulk orders?
A: Yes. We offer spot welding services for pure nickel tabs in U, Z, or custom shapes. Sourcing pre-tabbed cells helps assembly facilities save processing time, reduce thermal stress on the cells, and simplify connection tasks on high-volume production lines.
📬 Ready to Elevate Your Business? Contact Our Expert Team!
Looking for a reliable manufacturer or custom OEM/ODM solutions? Get in touch with Kingchi today for a quick quote and product samples.
📧 Email: sales@Kingchipower.com
📞 Phone/WhatsApp: +86 17807659568
🏢 Factory Address: 2nd Floor, Building B, Zhiqiang High-tech Industrial Park, Sjiaolou, Luoyang Sub-district, Boluo County, Huizhou City, Guangdong Province, China
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