F4 360W Device


Dispatch is 7~10 Business Days (Item ineligible for Express Post)

The Laisimo F4, is BIG and will easily fit the Maxo sized tanks like, the Steam Crave Titan 41 and Modfather 41.
With a maximum power output of 360W, the F4 gives you true power when installed with 4 x 18650 batteries, or 220W if only 2 x 18650 are fitted (not included). Effectively with 4 x Samsung 30Q installed you’d have a massive 12,000mAh of capacity extending recharges and providing a daily setup that’ll last all day, the F4 also incorporates a Quad set of battery level indicators to giving you exact data on battery condition.
The Laisimo F4 360W supports a resistance range as low as 0.05 ohm under TC mode up to a maximum of 3.0ohm.
It also features a very attractive and informative High Definition 1.3in OLED screen, displaying detailed vaping information, customizable colorful LED light, multiple protection, including low voltage protection, high temp protection, working overtime protection, output short-circuit protection, low and high resistance protection.

The Technical Stuff

Main Features

  • Large 1.3in TFT colour screen
  • Colourful OLED RGB lights (displays in 9 colours)
  • Accepts Quad 18650 batteries
  • Quad battery level indicators
  • Pass-thru charge capability, vape and charge
  • Durable frame/chassis
  • Laisimo quality
  • Firmware upgrades


  • Wattage Range
    • 2 x 18650 setup
      • Minimum: 10W
      • Maximum: 220W
    • 4 x 18650 setup
      • Minimum: 10W
      • Maximum: 360W
  • Operating Modes
    • Variable Wattage
    • Temperature Control
      • Nikel
      • Titanium
      • Stainless Steel
    • TCR
      • DIY1
      • DIY2
  • Resistance Range
    • Minimum: 0.05ohm (power and TC modes)
    • Maximum: 3.0ohm
  • Output Voltage Range
    • Minimum: 0.5V
    • Maximum: 12.0V
  • Battery Voltage Range
    • Minimum: 12.8V
    • Maximum: 16.8V
  • Temperature Control Range
    • Metric:
      • Minimum: 100℃
      • Maximum: 300℃
    • Imperial
      • Minimum: 212℉
      • Maximum: 572℉
  • Battery Requirement: 4 x 18650 series
  • Safety Features & Protections
    • Reverse polarity
    • PCBA overheating
    • Low voltage
    • High temperature
    • Overtime
    • Short circuit
    • Low resistance
    • High resistance
  • Connecting Thread:
    • 510 thread
    • Centrally located
    • Accepts 42mm diameter tanks with no overhang
  • Dimensions
    • Height: 83mm
    • Width: 43mm
    • Depth: 51.5mm
  • Construction Material
    • Zinc Alloy
    • ABS

What’s in the Box?

  • 1 x Laisimo F4 360W device
  • 1 x USB charge & firmware upgrade cable
  • 1 x User manual
  • 1 x Authenticity & warranty card

Replacement Parts


  • 3 Months Replacement
  • DOA, advise in writing within 7 days of delivery receipt

General Battery Safety

Download "Safety of Lithium-Ion Batteries" document

Battery safety is very important. Mistreated batteries can get extremely hot and/or vent which could cause injury. Always follow the following rules to make sure this doesn't happen. We are not liable for mistreated batteries.

  • Never completely discharge batteries (below 2.5V under load or 3V unloaded)
  • Charge fully (to 4.2V) before first use
  • Never use a lot of force on the battery to install
  • Use only high quality battery chargers
  • Do not expose to heat
  • Do not connect the positive contact to the negative contact without an appropriate load
  • Be mindful of the current limits in the specification and never exceed them
  • Never keep spare battery or batteries loose in or near;
    • Pocket etc
    • Purse etc
    • Vehicle glovebox or console compartment, in fact never in a vehicle
    • Direct sunlight
    • Machinery
    • Fire or heat sources
  • If storing batteries short or long term, use these guidelines
    • Use a battery model specific protective case, found here
    • Use a cool & dry environment
    • Don not store fully charged, approximately 3.6~3.7V is best
  • Never try to charge or discharge li-ion batteries with battery chargers that are not made for Li-ion batteries
  • Never charge battery 4.3V or above
  • Do not charge unattended
  • Do not store your li-ion batteries fully charged for an extended period of time (weeks or more)

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