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Free Delivery on orders over £350 (ex VAT)

Home of the Mix Labs Disposable Inspired range!

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    On orders over £350+VAT

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  • Multiple Delivery Options

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Fogstar Energy Dark Blue 18650 Battery (4000mAh)


Delivery & Shipping

All orders placed through the Mix Labs wholesale website are processed and dispatched in the UK.

United Kingdom

DPD (Next Working Day Delivery) in the United Kingdom is £6.00.

Parcelforce (Next Working Day Delivery) in the United Kingdom is £6.00.

DHL (Next Working Day Delivery) in the United Kingdom is £6.00.

We also offer your choice of courier above as Free Tracked Shipping for all orders over £350 (ex VAT).

DHL (Saturday Delivery) in the United Kingdom is £12.00. 

Channel Islands

DHL (1-2 Working Days) in the Channel Islands is £14.00.

Please click here to view the terms & conditions.

Fogstar FS4000 18650 Battery – 4000mAh, 10A

Introducing the Fogstar FS4000 18650 battery, from the UK’s trusted battery supplier. Designed for low-powered devices such as Mouth To Lung (MTL) kits, this flat-top lithium-ion cell delivers an impressive 4000mAh capacity with a 10A maximum discharge, providing long-lasting battery performance for extended vaping sessions. Please note: these batteries are not suitable for high-powered mods or sub-ohm devices.

Manufactured to high standards, Fogstar batteries ensure reliable performance and safety when used according to manufacturer specifications. Perfect for MTL vapers seeking consistent, long-lasting power.

Specifications

  • Manufacturer: Fogstar
  • Model: FS4000
  • Size: 18650
  • Capacity: 4000mAh
  • Maximum Discharge: 10A
  • Nominal Voltage: 3.6V
  • Maximum Voltage: 4.2V
  • Top: Flat-Top
  • Protection: None

Safety & Usage Guidelines

  • Never carry lithium-ion batteries in pockets, bags, or loose with metal objects—this can be extremely hazardous
  • Charge only on dedicated lithium-ion chargers rated for 18650 cells
  • Never leave batteries unattended while charging
  • Keep batteries away from children and pets
  • Inspect wraps and insulators regularly; repair or dispose of batteries with damaged wraps
  • Batteries have a typical cycle life of 200–500 cycles, depending on usage
  • Recycle batteries at end of life—do not crush, incinerate, or modify
  • Use only within manufacturer’s specifications

What’s In The Box

  • 1 x Fogstar FS4000 18650 Battery