Overview
The Etenwolf P300 Plus is a compact rechargeable electric pump designed for inflating sports balls, inflatables, and small recreational items. It combines a digital pressure sensor with auto-stop functionality to deliver precise inflation for basketballs, soccer balls, footballs, volleyballs, and more.
Key Specifications
- Max Pressure: 16 PSI (1.1 bar) for ball inflation
- Inflation Speed: Inflates a basketball in ~30 seconds
- Power: Built-in 1200mAh lithium battery
- Charging: USB-C, approx. 1 hour to full charge
- Display: Digital LED, shows current and target pressure
- Auto Stop: Stops at preset pressure; prevents over-inflation
- Needle Nozzles: 3× stainless steel inflation needles included
- Weight: 135 g
Supported Ball Types and Pressure Ranges
| Ball Type | Recommended PSI |
|---|---|
| Basketball (NBA) | 7.5–8.5 PSI |
| Soccer Ball (FIFA) | 8.5–15.6 PSI |
| American Football (NFL) | 12.5–13.5 PSI |
| Volleyball | 4.3–4.6 PSI |
| Rugby Ball | 9.5–10.2 PSI |
How to Inflate a Sports Ball
- Moisten the needle tip with water or saliva to ease insertion.
- Insert the needle into the ball valve.
- Connect the needle to the pump nozzle.
- Power on the P300 Plus and set your target pressure.
- Press start — the pump inflates and stops automatically at target.
- Carefully remove the needle to avoid air loss.
Tips for Accurate Inflation
- Always check manufacturer-recommended pressures before inflating.
- Ball pressure changes with temperature — check pressure after the ball reaches playing temperature.
- A cold ball will read lower pressure than a warm ball; adjust accordingly.
- Never exceed the maximum rated pressure for the ball type.
Battery Life
A full charge supports approximately 20–25 full basketball inflations from flat (0 PSI). Inflate balls from a partially deflated state to extend battery life per charge cycle.