keimi Electric Fuel Transfer Pump — 3.2 GPM Auto-Stop, Battery & USB Powered, Fits 4 Can Adapters

The Keimi Electric Fuel Transfer Pump is a portable, battery- and USB-powered gas-can pump that transfers up to 3.2 gallons per minute and stops automatically when the nozzle sensor detects liquid.

If you regularly move gasoline, diesel, or light oils between cans and tanks for lawn equipment, generators, ATVs, or boats, this compact pump is designed to make refueling faster and safer than pouring by hand. It accepts common North American can sizes via four included adapters, runs on AA batteries or USB power, and features an auto-stop sensor to help reduce spills during attended transfers.

How does the auto-stop sensor improve refueling?

The built-in sensor in the nozzle stops fuel flow when the liquid reaches the tip, helping prevent overfilling during a transfer. It’s intended for attended use—keep an eye on the tank and switch the unit off once transfer is complete for best results.

• Stops flow automatically when liquid contacts the nozzle sensor
• Reduces the chance of overflow during routine transfers
• Works while you hold or position the nozzle, simplifying single-person operation

What power options are available and how long does it run?

This Keimi pump accepts multiple power sources: four AA batteries for full operation, two AA as a temporary backup, or a USB supply from a compatible power bank or adapter. Using USB is convenient for extended sessions; battery life varies with battery quality and transfer duration.

• Primary: four AA batteries (not included) for standard use
• Backup: two AA batteries for emergency or short transfers
• USB input for use with power banks, car chargers, or household adapters

Which fuel cans and hoses are supported?

The pump ships with four differently sized can adapters (2.0, 2.1, 2.75, and 3.75 inches) to fit most North American fuel containers. The 51-inch corrugated hose increases reach so you can move fuel from cans to tanks without awkward positioning.

• Includes adapters for common gas can openings—measure your can before fitting
• 51-inch hose provides extended reach and flexible routing
• Intake tube and nozzle designed for easy insertion and secure transfer

Is the pump safe to use with different engines and oils?

Use the Keimi pump for gasoline, diesel, and other light petroleum-based oils where the product instructions allow. Operate in a well-ventilated area away from open flames, heat sources, and sparks, and never leave the pump running unattended.

• Suitable for small engine fuels and light oils specified in the manual
• Not intended for unattended or indoor use around ignition sources
• Follow local regulations and product instructions when transferring fuel

Who is this for: The Keimi Electric Fuel Transfer Pump is built for homeowners, landscapers, boaters, and anyone who routinely refuels portable equipment. It’s a practical choice when you need quicker, tidier transfers than manual pouring, want multiple power options, and prefer an auto-stop feature to help minimize spills during attended use.