ETENWOLF S4 portable SUP pump connected to an inflatable paddle board on the beach

ETENWOLF S4: Air Compressor Full Specs User Guide

Product Overview

The ETENWOLF S4 is a 12V electric SUP pump with dual-stage inflation: 600L/min turbo and 70L/min high-pressure modes up to 20 PSI.

Full Specifications

Maximum air pressure 20PSI/1.38BAR/1379Kpa
Inflation speed 70L/min@0PSI 2.47CFM@0PSI
cigarette lighter Cigarette lighter cord length 3 meters
Pressure accuracy ±0.5psi(±0.035bar)(35kpa)
work noise 1 meter distance, <90 dB
Battery life Cigarette lighter, 100% duty cycle
Size 326*195*122mm 12.83”x7.68”x4.8”
weight 1.97kg/4.33lb
Waterproof level None

Key Features

Fast pumping speed: 70L/MIN, 300L

No battery anxiety: 3-meter cigarette lighter cord, you can plug it in and work anytime and anywhere

Dual motors: It can inflate paddle boards, etc., it can also inflate swimming rings, inflatable tents, etc. It can also be used to evacuate vacuum storage bags.

Air nozzle accessories: 7 air nozzle accessories, covering paddle boards, wings, vacuum storage, inflatable tents, swimming rings, inflatable mattresses, etc.

Use Cases & Compatible Vehicles

300L paddle board: Inflated from 0 to 12psi, 6 minutes and 30 seconds

Rooftop tent mattress: 3 minutes and 41 seconds to reach 4psi

What’s in the Box

S4: Host

High-pressure transfer pipe: connect the host and inflatable products

Air nozzle accessories: Use the high-pressure fitting pipe to connect to the inflatable product

Instructions: product instruction manual

FAQ

N has no A at the moment

Certifications & Compliance

FCC: United States

CE: European Union

RHOS: United States + EU + other regions

REACH: European Union

UN38.3: Globally applicable

CB: There are 54 member states in the world that mutually recognize this report.

Zqun|Senior Structural Engineer
Zqun|Senior Structural Engineer

Zqun is a Senior Structural Engineer at ETENWOLF (Mozhen Technology) with a 10-year track record in automotive product development and mechanical transmission R&D. Joining the company in 2025, he commands the technical lifecycle of ETENWOLF portable air compressor mechanisms, automotive gearboxes, and specialized pump core architectures for international B2B OEM/ODM programs.His engineering background includes directing mechanical architecture and gear set optimization for market-proven ETENWOLF series including S0, S1, S2, S4 Mini, S4 Pro, and X7. Zqun delivers comprehensive system designs for S0 pump cores, face gear configurations for S1 transmissions, and custom drive mechanisms for the S4 Mini, S4 Pro, V3, X7, and S8 series. Fully integrated with IATF 16949 quality standards, his architectural blueprints supply domestic automotive manufacturers and mitigate production risks for global buyers.Zqun holds a Mechatronics Engineering degree from Wuhan University of Technology (2016) and holds multiple authorized utility model patents under ETENWOLF.

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