A 18350 battery is a high-drain, rechargeable lithium-ion cell designed for compact, power-intensive applications. With standard dimensions of 18mm x 35mm, it offers a smaller footprint compared to 18650 batteries while maintaining a high energy density and reliable discharge performance. These cells are widely used in tactical flashlights, medical instruments, compact vaping devices, and industrial electronics.
Technical Specifications
Voltage:3.6V – 3.7V nominal, full charge at 4.2V, and discharge cutoff of 2.5V – 3.0V.
Capacity Range: Typically between 700mAh and 1400mAh, depending on chemistry and discharge rating.
Battery Chemistry Types:
Lithium Cobalt Oxide (LiCoO₂ - LCO): Maximized energy storage with moderate discharge rates.
Lithium Iron Phosphate (LiFePO₄ - LFP): Exceptional cycle life and ultra-safe operation, but nominal voltage is 3.2V instead of 3.7V.
Discharge Rate (CDR): Some high-drain 18350 cells offer continuous discharge rates of 5A – 15A, making them ideal for power-hungry devices.
Cycle Life: Can exceed 500 to 1000 charge cycles, depending on proper maintenance and chemistry type.
Protected vs. Unprotected 18350 Cells
Protected 18350 Batteries: Feature an integrated protection circuit to safeguard against overvoltage, deep discharge, and short circuits.
Unprotected 18350 Batteries: Preferred for regulated devices or battery packs with external BMS (Battery Management Systems).
Industry Applications for 18350 Batteries
✔ Tactical & High-Powered Flashlights: Used in compact, high-output LED flashlights. ✔ Medical & Industrial Equipment: Found in portable diagnostic devices, sensors, and precision measurement tools. ✔ Vaping & Compact Power Modules: Power source for vape mods and custom battery setups. ✔ Custom Battery Packs & Robotics: Integrated into specialized battery packs for niche electronics and automation projects.
Choosing the Right 18350 Battery
🔹 Voltage Compatibility: Verify that your device supports 3.6V or 3.7V, as some older electronics are designed for lower-voltage alternatives. 🔹 High-Drain vs. Standard Cells: Devices requiring rapid power output should use high-CDR 18350 cells. 🔹 Button Top vs. Flat Top: Ensure compatibility with your device’s battery compartment.
At IMR Batteries, we specialize in high-performance lithium-ion cells, ensuring optimal safety, reliability, and longevity. Browse our inventory for the best selection of premium 18350 batteries for demanding applications.
