The ETENWOLF S1 is a cordless portable tire inflator built around a 5200mAh battery and a high-speed motor rated at 160 PSI and 20L/min airflow. ETENWOLF claims it fills a 195/65R15 tire from 30 to 35 PSI in about 60 seconds and can top up up to 17 car tires on one charge, helped by a built-in cooling system. It suits drivers, riders and cyclists who want a rechargeable inflator for top-ups and emergencies instead of a corded 12V plug-in unit. Against typical corded inflators it trades wall power for battery convenience, and its claimed speed and capacity put it near the top of the compact class on paper.
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Buyers rate the S1 highly, with a perfect average across 28 ratings. Feedback centers on fast inflation and the convenience of a cordless unit that handles several tires per charge.
It reaches a maximum pressure of 160 PSI with an airflow of 20L/min. It can inflate a 195/65R15 tire from 30 to 35 PSI in 60 seconds. It is used for cars, SUVs, motorcycles, bicycles and sports balls.
A 5200mAh battery and a built-in cooling system let it run continuously. One charge inflates up to 17 car tires, 60 motorcycle tires, 70 bicycle tires or 80 balls. The air hose stores in the back of the pump. Dedicated slots there hold the ball needle and the French valve adapter. The compact body fits in a backpack, a glove compartment or a bike pouch.
The inflator has 4 preset modes and remembers the last pressure setting used. One button switches the pressure unit between PSI, kPa, BAR and KG/CM. A bright LED display shows pressure in real time. The auto-stop function shuts the pump off when the target pressure is reached, which prevents overinflation. A built-in LED flashlight provides light for nighttime use and roadside emergencies.
