1. Introduction
This manual provides essential instructions for the safe and effective use of your RYOBI 18V ONE+ Lithium+ 3.0 Ah Battery Starter Kit. This kit includes two 3.0 Ah LITHIUM+ High Performance High Capacity Batteries, an 18V Dual Chemistry Charger, and a tool bag. These components are designed to maximize tool performance and provide extended runtime for all RYOBI 18V ONE+ tools.
2. Package Contents
Verify that all items listed below are included in your package. If any parts are missing or damaged, please contact RYOBI customer service.
- Two (2) RYOBI P191 18V ONE+ Lithium+ 3.0 Ah High Performance High Capacity Batteries
- One (1) RYOBI P118B 18V Dual Chemistry Charger
- One (1) Tool Bag
- Operator's Manuals

Image 2.1: RYOBI 18V ONE+ Lithium+ 3.0 Ah High Performance Battery. This image shows a single RYOBI 18V ONE+ Lithium+ 3.0 Ah battery, featuring its black and grey casing with green accents, and the 4-bar illuminated charge indicator.

Image 2.2: RYOBI 18V Dual Chemistry Charger P118B. This image displays the RYOBI 18V Dual Chemistry Charger, a black unit with yellow accents, alongside its power adapter and cord.

Image 2.3: RYOBI Tool Bag. This image shows the bright green RYOBI branded tool bag with black handles, designed for carrying tools and accessories.
3. Safety Information
WARNING: Read all safety warnings and instructions. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.
Battery Safety
- Do not disassemble, open, or shred battery packs.
- Do not short-circuit a battery pack. Do not store battery packs haphazardly in a box or drawer where they may short-circuit each other or be short-circuited by conductive materials.
- Do not expose battery packs to heat or fire. Avoid storage in direct sunlight.
- Do not subject battery packs to mechanical shock.
- In the event of battery leakage, do not allow the liquid to come into contact with the skin or eyes. If contact has been made, wash the affected area with copious amounts of water and seek medical advice.
- Keep battery packs clean and dry.
- Recharge only with the charger specified by RYOBI.
- Do not use any battery pack which is not designed for use with the equipment.
Charger Safety
- Do not charge non-rechargeable batteries.
- Before using the charger, read all instructions and cautionary markings on the charger, battery pack, and product using the battery pack.
- Do not expose the charger to rain or wet conditions.
- Use only RYOBI 18V ONE+ battery packs with this charger.
- Do not operate the charger with a damaged cord or plug.
- Do not use the charger if it has received a sharp blow, been dropped, or otherwise damaged.
4. Setup
Unpacking
Carefully remove all components from the packaging. Inspect the contents to ensure no damage occurred during shipping. Retain the packaging material for future storage or if return is necessary.
Initial Battery Charge
For optimal performance, it is recommended to fully charge the batteries before their first use. Refer to the 'Operating Instructions' section for detailed charging procedures.
5. Operating Instructions
Charging the Battery
- Plug the charger into a standard 120V AC outlet. The charger's indicator light will typically show a standby status (e.g., green light blinking slowly).
- Align the battery pack with the charger's port and slide it firmly into place until it clicks.
- The charger's indicator light will change to indicate charging status (e.g., red light for charging).
- A 3.0 Ah battery typically charges in approximately 1 hour.
- Once fully charged, the indicator light will change (e.g., solid green). Remove the battery from the charger.
Charger Indicator Lights
| Light Status | Meaning |
|---|---|
| Slow Green Blink | Charger is plugged in and ready to charge. |
| Solid Red | Battery is charging. |
| Solid Green | Battery is fully charged. |
| Fast Red Blink | Battery or charger error (e.g., battery too hot/cold, defective battery). |
Using the Battery with Tools
- Ensure the tool is turned off before inserting or removing the battery.
- Align the battery with the battery port on your RYOBI 18V ONE+ tool.
- Slide the battery into the tool until it clicks securely into place.
- To remove the battery, press the release latches on the sides of the battery and slide it out of the tool.
6. Maintenance
Cleaning
- Keep the battery pack and charger clean and free of debris.
- Use a clean, dry cloth to wipe down surfaces. Do not use water or chemical cleaners.
- Periodically inspect the charger's cord for any damage.
Storage
- Store batteries and charger in a cool, dry place, away from direct sunlight and extreme temperatures.
- For long-term storage, it is recommended to store batteries with a partial charge (around 50%).
- Do not store batteries in a discharged state for extended periods, as this can lead to irreversible damage.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Charger not plugged in; faulty outlet; battery not seated correctly; battery too hot/cold; defective battery/charger. | Check power connection; try a different outlet; re-seat battery; allow battery to reach room temperature; contact customer service if issue persists. |
| Battery not powering tool | Battery discharged; battery not seated correctly; tool malfunction. | Charge battery; re-seat battery; test battery in another tool; contact tool manufacturer if tool is suspected faulty. |
| Charger indicator blinking fast red | Battery temperature outside optimal range; defective battery. | Remove battery and allow it to cool down or warm up to room temperature; if error persists, the battery may be defective. |
8. Specifications
| Feature | Specification |
|---|---|
| Brand | RYOBI |
| Model Number | P166 |
| Battery Type | Lithium-Ion |
| Battery Voltage | 18 Volts |
| Battery Capacity | 3.0 Ah |
| Charger Input Voltage | 18 Volts |
| Charger Output Voltage | 18 Volts |
| Approximate Charge Time (3.0 Ah) | 1 Hour |
| Product Dimensions (D x W x H) | 9.5" x 12.5" x 4.5" |
| Item Weight | 0.01 Ounces |
| Certifications | CE, RoHS, UL |
| UPC | 033287176328 |
9. Warranty and Support
Warranty Information
This RYOBI 18V ONE+ Lithium+ 3.0 Ah Battery Starter Kit is covered by a 3-year manufacturer's warranty. Please retain your proof of purchase for warranty claims. The warranty covers defects in materials and workmanship under normal use.
Customer Support
For technical assistance, warranty claims, or to purchase replacement parts, please contact RYOBI customer service. Refer to the official RYOBI website or your product packaging for the most current contact information.
Online Resources: www.ryobitools.com





