1. Introduction
This manual provides essential instructions for the safe operation, setup, maintenance, and troubleshooting of your Ryobi P737 18-Volt ONE+ Lithium-Ion Cordless Power Inflator Kit. Please read this manual thoroughly before using the product and retain it for future reference. This kit is designed for high-pressure inflation of tires and small inflatables, offering cordless convenience and portability.
2. Safety Information
Always observe basic safety precautions when using electrical appliances to reduce the risk of fire, electric shock, and personal injury. Familiarize yourself with the controls and proper use of the tool. Wear appropriate personal protective equipment, such as eye protection, during operation. Do not operate the inflator in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Keep children and bystanders away while operating the tool. Use only Ryobi ONE+ 18-Volt batteries and chargers with this product.
3. Package Contents
Verify that all items listed below are included in your package:
- Ryobi P737 18-Volt ONE+ Cordless Power Inflator
- P102 1.3 Ah Compact Lithium-Ion Battery
- P118 18-Volt Charger
- Sports Equipment Needle
- Two High-Pressure Nozzles
- Automotive Pencil Tire Gauge
- Operator's Manual
4. Components
The Ryobi P737 Power Inflator Kit includes the main inflator unit, a battery, a charger, and various accessories. The inflator features a pistol grip handle with GripZone overmold for comfortable use, a 20-inch hose with an on-board storage clip, and a 2-inch easy-view pressure gauge for quick readings. A convenient accessory compartment is integrated for storing the needle and nozzle accessories.

5. Setup
5.1 Charging the Battery
- Connect the P118 18-Volt Charger to a standard electrical outlet.
- Slide the P102 1.3 Ah Lithium-Ion Battery onto the charger until it clicks into place.
- Allow the battery to charge fully. Refer to the charger's indicator lights for charging status.
- Once charged, remove the battery from the charger.
5.2 Installing the Battery
- Align the charged battery with the battery port on the base of the power inflator.
- Slide the battery into the port until it locks securely into place. Ensure it is fully seated to prevent accidental dislodgement during operation.
- To remove the battery, press the release latches on the sides of the battery and slide it out.
5.3 Attaching Nozzles
Select the appropriate nozzle for your inflation task. The kit includes a sports equipment needle and two high-pressure nozzles. These can be stored in the inflator's accessory compartment.
- For standard tire valves (Schrader type), the inflator hose connects directly.
- For sports equipment or other inflatables, thread the desired nozzle onto the end of the inflator hose.
6. Operating Instructions
6.1 Inflation Procedure
- Ensure the battery is installed and fully charged.
- Attach the appropriate nozzle or connect the hose directly to the item to be inflated. For tires, firmly press the hose connector onto the tire valve stem.
- Press the trigger on the inflator to begin inflation. The inflator will start to operate, and the pressure gauge will display the current pressure.
- Monitor the 2-inch easy-view pressure gauge closely. Release the trigger once the desired pressure is reached.
- Disconnect the hose from the item.
6.2 Using the Automotive Pencil Tire Gauge
The included automotive pencil tire gauge provides an independent method for checking tire pressure.
- Remove the cap from the tire valve stem.
- Firmly press the open end of the pencil gauge onto the valve stem until the pressure reading rod extends.
- Remove the gauge and read the pressure indicated on the rod.
- Replace the tire valve cap.
7. Maintenance
7.1 Cleaning
Keep the inflator clean and free of debris. Use a clean, dry cloth to wipe down the exterior. Do not use harsh chemicals or abrasive cleaners. Ensure the air vents are clear to prevent overheating.
7.2 Storage
When not in use, store the power inflator, battery, and charger in a cool, dry place away from direct sunlight and extreme temperatures. Ensure the battery is removed from the inflator before storage. Utilize the on-board hose storage clip and accessory compartment to keep all components organized.
8. Troubleshooting
If you encounter issues with your Ryobi P737 Power Inflator, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Inflator does not turn on | Battery not installed correctly or discharged | Ensure battery is fully seated. Charge the battery. |
| Low inflation pressure | Hose not securely connected or leak in connection | Check all connections for tightness. Ensure nozzle is correctly attached. |
| Inaccurate pressure reading | Gauge malfunction or external factors | Verify pressure with the included pencil tire gauge or another reliable gauge. |
For issues not resolved by the above, please contact Ryobi customer support.
9. Specifications
- Model: P737
- Voltage: 18-Volt
- Battery Type: Lithium-Ion (ONE+ system compatible)
- Pressure Range: 0-150 psi
- Hose Length: 20 inches
- Product Dimensions: 11 x 7 x 11 inches
- Manufacturer: Ryobi
10. Warranty and Support
This Ryobi product is covered by a manufacturer's warranty. For detailed warranty information, registration, or technical support, please refer to the warranty card included with your product or visit the official Ryobi website. Keep your purchase receipt as proof of purchase for warranty claims.







