Rechargeable Lithium Battery Voltcraft VC-18650 3.6V 3400mAh

Rechargeable lithium 18650 cell Voltcraft VC-18650 provides a nominal voltage of 3.6V and a rated capacity of 3400mAh. This cylindrical cell is intended for devices and builds that accept 18650-format batteries, offering extended runtime and stable voltage under load. It is suitable for replacing single cells in battery holders, assembling custom battery packs, or powering portable electronics and handheld lighting where a high-capacity lithium cell is required. The cell must be used with chargers that support 18650-size lithium-ion cells and handled according to established safety guidelines for rechargeable lithium cells.

Advantages

The cell combines high energy capacity with compact 18650 dimensions, delivering long operating times compared with lower-capacity cells of the same size. Its chemistry maintains relatively stable voltage under moderate continuous loads, which helps connected devices run more consistently. The rechargeable design reduces the need for frequent disposable battery replacement and allows integration into multi-cell packs for higher voltage or capacity. The cell is compatible with common 18650 chargers and standard holders when proper polarity and cell condition are observed.

Suitable for

• Flashlights and headlamps
• Portable electronics and handheld devices
• DIY battery pack assemblies and custom power banks
• Hobby projects, RC models, and controllers
• Replacement for equipment using single 18650 cells

Key specifications

• Cell type: rechargeable lithium-ion, cylindrical 18650 form factor
• Nominal voltage: 3.6 V
• Capacity: 3400 mAh (rated)
• Typical uses: single-cell devices or series/parallel multi-cell packs
• Compatibility: chargers and holders that accept standard 18650 cells

How to use

Insert the cell into devices or holders observing correct polarity. Charge only with a charger designed for lithium-ion 18650 cells and follow the charger manufacturer’s instructions for charging current and termination. When assembling multi-cell packs, use proper cell balancing and protection circuitry to prevent overcharge, over-discharge, and short circuits. Store unused cells in a cool, dry place at partial state of charge and avoid mechanical damage or exposure to high temperatures.

Usage recommendations

Use an appropriate charger with overcharge protection and, when building packs, include a protection circuit module and a balance charging method. Do not use cells that show physical damage, swelling, or abnormal heating. Dispose of or recycle cells through approved collection points in accordance with local regulations.