18350 Batteries | Compact Lithium-Ion Power Solutions

An 18350 battery is a rechargeable lithium-ion (Li-ion) cell with a compact cylindrical shape and standard dimensions of 18mm in diameter and 35mm in length. Known for its small size, high energy density, and rechargeable capability, 18350 batteries are a popular choice for flashlights, vape devices, medical instruments, and other portable electronics that require a reliable power source in a compact form factor.

Key Features & Specifications

• Voltage: Typically 3.6V or 3.7V nominal, with a full charge voltage of 4.2V and a discharge cutoff between 2.5V – 3.0V.
• Capacity: Usually ranges from 700mAh to 1400mAh, depending on the chemistry and manufacturer.
• Battery Chemistry Options:
  • Lithium Cobalt Oxide (LiCoO₂ - LCO): High energy density for long-lasting runtime.
  • Lithium Manganese Oxide (LiMn₂O₄ - LMO): Safer with improved thermal stability.
  • Lithium Iron Phosphate (LiFePO₄ - LFP): Superior cycle life and safety but operates at 3.2V nominal instead of 3.7V.

Protected vs. Unprotected 18350 Batteries

• Protected 18350 Batteries: Feature a built-in protection circuit to prevent overcharging, over-discharging, and short circuits. These are slightly longer than standard cells.
• Unprotected 18350 Batteries: Used in devices that already have built-in battery protection or require direct power output.

Common Applications for 18350 Batteries

18350 batteries are commonly used in:
✔ Compact Flashlights & LED Devices: Ideal for high-powered EDC (Everyday Carry) flashlights.
✔ Vape Mods & Portable Vaporizers: A rechargeable power source for compact vaping devices.
✔ Medical & Industrial Equipment: Used in portable diagnostic devices, sensors, and measurement tools.
✔ Specialty Electronics & Custom Battery Packs: Found in DIY battery packs and niche electronics.

Choosing the Right 18350 Battery

📌 Voltage Compatibility: Ensure your device supports 3.6V or 3.7V, as some devices are designed for lower voltage cells.
📌 Protected vs. Unprotected: If your device lacks built-in safety mechanisms, opt for a protected cell.
📌 Button Top vs. Flat Top: Some devices require a button top, while others use flat top cells.

At 18650Battery.com, we offer a wide selection of premium 18350 batteries from trusted brands, ensuring reliable performance and long-lasting power. Shop today for the best rechargeable energy solutions!