Introduction
This manual provides essential instructions for the safe and effective use of your RYOBI PBP005 ONE+ 18V Lithium-Ion 4.0 Ah Battery. Please read this manual thoroughly before operating the battery.
Key Features:
- Provides extended runtime compared to standard 1.5Ah lithium-ion batteries.
- Compatible with over 225 RYOBI ONE+ 18V tools.
- Features professional-grade lithium-ion cells for fade-free power.
- Engineered for impact resistance and performance in extreme weather.
- Integrated LED fuel gauge for monitoring charge status.
- Robust construction for durability.
- Designed for easy installation and removal with quick-release buttons.
Important Safety Information
Always observe the following safety precautions when handling and using your battery:
- Charging: Only use RYOBI ONE+ 18V chargers specifically designed for lithium-ion batteries. Using an incompatible charger may cause fire, injury, or damage.
- Storage: Store the battery in a cool, dry place away from direct sunlight, heat sources, and moisture. Do not store in temperatures exceeding 120°F (49°C) or below 0°F (-18°C).
- Handling: Do not short-circuit the battery terminals. Do not immerse the battery in water or other liquids. Do not disassemble, crush, or drop the battery.
- Disposal: Dispose of batteries responsibly according to local regulations. Do not dispose of batteries in household waste or by incineration.
- Damage: If the battery is damaged, leaking, or shows signs of overheating, discontinue use immediately and contact RYOBI customer support.
Setup and Initial Use
1. Initial Charging:
Before first use, fully charge the battery. Connect the battery to a compatible RYOBI ONE+ 18V charger (charger sold separately). The charger's indicator lights will show the charging status. Refer to your charger's manual for specific instructions.
2. Installing the Battery:
Align the battery with the battery port on your RYOBI ONE+ 18V tool. Slide the battery into the tool until it clicks securely into place. Ensure the quick-release buttons are fully engaged.
3. Removing the Battery:
To remove the battery, press the quick-release buttons on the sides of the battery and slide it out of the tool.

Figure 1: RYOBI PBP005 ONE+ 18V Lithium-Ion 4.0 Ah Battery. This image shows the battery unit with its integrated LED fuel gauge and quick-release buttons.
Operation
Using the Battery:
Once installed, the battery powers your RYOBI ONE+ 18V tool. The lithium-ion technology provides consistent, fade-free power throughout its discharge cycle.
Integrated LED Fuel Gauge:
The PBP005 battery features an integrated LED fuel gauge to monitor the remaining charge. Press the button next to the LED lights to activate the gauge. The number of illuminated LEDs indicates the approximate charge level:
- 4 LEDs: 75-100% charge
- 3 LEDs: 50-75% charge
- 2 LEDs: 25-50% charge
- 1 LED: 0-25% charge (recharge soon)
Maintenance and Storage
Cleaning:
Keep the battery terminals clean and free of debris. Use a clean, dry cloth to wipe the battery. Do not use solvents or harsh chemicals.
Storage:
For optimal battery life, store the battery in a cool, dry location, away from direct sunlight and extreme temperatures. If storing for extended periods, it is recommended to store the battery with a partial charge (around 50%).
Long-Term Storage:
If the battery will not be used for several months, periodically check its charge level and recharge it to approximately 50% to prevent deep discharge, which can reduce battery life.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Incompatible charger; charger malfunction; battery too hot/cold; poor connection. | Ensure charger is compatible RYOBI ONE+ 18V. Check charger for damage. Allow battery to reach room temperature. Ensure battery is fully seated in charger. |
| Battery not powering tool | Battery not fully charged; battery not properly installed; battery defect; tool defect. | Check LED fuel gauge and recharge if necessary. Ensure battery is securely clicked into tool. Test with another known-good battery if available. If issue persists, contact RYOBI support. |
| Reduced runtime | Battery age; extreme operating conditions; heavy tool load. | Battery capacity naturally decreases over time. Avoid operating in extreme temperatures. Ensure tool is not continuously overloaded. |
Specifications
- Model: PBP005 (ZRPBP005)
- Brand: RYOBI
- Voltage: 18V
- Battery Type: Lithium-Ion
- Capacity: 4.0 Ah
- Item Weight: 1.6 pounds
- Package Dimensions: 5.5 x 4 x 3 inches
- Compatible System: RYOBI ONE+ 18V
- Manufacturer: RYOBI
Warranty and Support
Manufacturer's Warranty:
This RYOBI PBP005 ONE+ 18V Lithium-Ion 4.0 Ah Battery is backed by the RYOBI 1-Year Manufacturer’s Warranty. Please retain your proof of purchase for warranty claims.
Customer Support:
For technical assistance, warranty inquiries, or to locate authorized service centers, please visit the official RYOBI website or contact their customer service department. Refer to your product packaging or the RYOBI website for current contact information.
Note: Charger sold separately.







