The Vapcell 18650 K25 is a flat-top lithium-ion cell for vaping devices, external chargers, and other battery-powered equipment that uses the 18650 form factor. With a 2500mAh capacity and a 20A continuous discharge rating, it is a reliable general-purpose cell suited to most sub-ohm and high-wattage applications.

About the Vapcell 18650 K25 2500mAh Battery

18650 batteries power a wide range of dual and single-bay box mods, as well as external battery chargers used to keep multiple cells topped up between vaping sessions. The Vapcell K25 is a flat-top cell — meaning no protruding positive terminal — which is the required format for most 18650 vaping devices and charger bays that are not specifically designed for button-top cells.

The K25 is rated at 2500mAh capacity with a continuous discharge rating of 20A. In practical terms, this means it handles the demands of most sub-ohm builds operating in the 30–80W range without performance degradation over a typical day's use. The 20A discharge rating provides a safe margin above the demands of most MTL coils and a reasonable level of headroom for moderate sub-ohm use.

Vapcell is a respected brand in the 18650 market, known for consistent cell quality and honest capacity ratings. As with all lithium-ion cells, these should be stored in a protective case when not in use and charged with a purpose-built lithium-ion charger rather than generic USB chargers not designed for bare cells.

Specifications

• Cell type: 18650 lithium-ion

• Capacity: 2500mAh

• Continuous discharge rating: 20A

• Terminal: Flat top

• Nominal voltage: 3.7V

• Fully charged voltage: 4.2V

What's in the Box

• 1 x Vapcell 18650 K25 2500mAh flat-top battery cell