Rechargeable battery everActive 18650 FWEV1865035MBOX 3.7V 3500mAh

Rechargeable 18650 lithium-ion battery everActive 18650 FWEV1865035MBOX delivers a nominal voltage of 3.7V and a rated capacity of 3500mAh. The cell is designed for devices that accept standard 18650 format batteries, providing extended runtime for portable electronics. Its construction supports multiple charge-discharge cycles and is suitable as a replacement cell or for DIY assemblies requiring a high-capacity 18650 battery.

Advantages

The everActive 18650 battery offers a high nominal capacity of 3500mAh in the standard 18650 size, allowing longer operation between charges compared with lower-capacity cells. As a rechargeable lithium-ion cell, it supports repeated charging and discharging while maintaining stable nominal voltage. The compact cylindrical form factor makes it compatible with a wide range of flashlights, vaporizers, power banks, and other portable devices that accept 18650 cells.

Suitable for

• High-drain flashlights and LED torches
• Vaporizers and electronic cigarettes designed for 18650 cells
• Portable power banks and DIY battery packs
• Handheld electronics and devices requiring replaceable 18650 cells
• Hobby and repair projects that use standard 18650 batteries

Key specifications

• Cell type: Lithium-ion rechargeable (cylindrical 18650 form)
• Nominal voltage: 3.7 V
• Rated capacity: 3500 mAh
• Geometry: 18 mm diameter × 65 mm length (standard 18650 dimensions)
• Intended use: replaceable single-cell applications and multi-cell assemblies

How to use

Insert the everActive 18650 cell into devices designed for 18650 batteries ensuring correct polarity. Use a compatible charger intended for lithium-ion cells and follow the charger manufacturer’s instructions for charging currents and termination. For multi-cell packs, ensure proper cell matching and use appropriate holders or protection circuitry. Do not attempt to force the cell into non-compatible compartments or modify the cell casing.

Usage recommendations

Charge the battery with a dedicated lithium-ion charger and avoid prolonged over-discharge. Store cells in a cool, dry place away from direct heat sources. Inspect cells for damage before use and replace any cell showing signs of swelling, leakage, or physical damage. When assembling multi-cell packs, use protection circuits and balance charging to ensure safety and longevity.