Quick Summary
The black ETENWOLF S0 is a mini electric pump for bicycle tires, with support for Presta and Schrader valves and a stated maximum pressure of 150 PSI. It has a built-in 2400 mAh battery, an LED digital pressure gauge, and automatic shutoff at the selected pressure. The listing also describes use with motorcycles and sports balls.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Model and color | ETENWOLF S0, black. |
| Maximum pressure | Up to 150 PSI. This is the stated pump limit, not a recommended pressure for a specific tire. |
| Airflow | 18 L/min stated airflow. |
| Gauge and shutoff | LED digital gauge displays pressure in real time, with stated precision of ±1 PSI. Automatic shutoff is described as stopping inflation at the selected value. |
| Battery | Built-in 2400 mAh lithium battery. The listing estimates up to eight fully flat tires or 18 low-pressure tires per full charge. |
| Valve support | Presta and Schrader bicycle valves are supported. Confirm adapter inclusion if you need a Presta adapter. |
| Dimensions | 2.70 x 1.50 x 3.50 inches. |
| Hose | A 360-degree rotation hose is described for positioning at the valve. |
Key Features Explained
The gauge displays tire pressure while inflating, and the pump is described as stopping automatically at the selected pressure. Its memory function retains the last-used pressure setting. Check the displayed setting before inflation, especially when switching between tires with different pressure targets.
The listing gives two speed examples: 20 seconds to inflate a 700 x 23C tire from 80 to 100 PSI, and under one minute to inflate a full road-bike tire from 0 to 100 PSI. These are stated examples, not a promise of the same time for every tire or starting pressure.
Compatibility, Size and Fit
The pump is described for Presta and Schrader bicycle valves and for motorcycle tires and sports balls. Its listed dimensions are 2.70 x 1.50 x 3.50 inches. The listing gives conflicting weights, so weight is not specified here.
What Is Included
The listed package contents include an air chuck, ball needle, balloon valve, drawstring bag, and user manual. The Presta adapter is described inconsistently: one statement calls it a separate accessory, while another lists it as included. Confirm its inclusion in the selected configuration if you need it.
What to Compare Before Buying
- Valve connection: Match the pump connection and any required adapter to the valve you use. Check whether a Presta adapter is included if needed.
- Pressure target: Check the appropriate pressure for your specific tire and compare it with the pump’s 150 PSI maximum. The maximum is not a tire-pressure recommendation.
- Battery expectations: The listed estimates are up to eight fully flat tires or 18 low-pressure tires per charge. Your results may differ with starting pressure and use.
- Storage space: Compare the listed dimensions with the space where you plan to carry or store the pump.
A Simple Pre-Ride Pressure Check
Before setting out, check the pressure target for each tire and verify the pump’s displayed setting. If using its memory function, do not assume the previous setting suits a different tire. Confirm the correct valve connection and have any required adapter available.
Before You Decide
Confirm the valve type and adapter you need, and check that the pump’s pressure limit and stated battery estimates suit your intended use. The listed dimensions are available for planning storage; the weight is unclear.











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