1. Introduction and Overview
This manual provides essential information for the safe and effective use of your Toro 60V MAX Flex-Force 10.0 Ah Lithium-Ion Battery. This battery is designed to power Toro's 60V Max Flex-Force Power System tools, offering reliable performance for various outdoor tasks. The Flex-Force Power System is engineered for professional handheld products and is compatible with a wide range of commercial-grade tools.

Image 1: Toro 60V MAX Flex-Force 10.0 Ah Lithium-Ion Battery.
2. Key Features
- RunSmart Technology: Optimizes power output to maximize runtime in real-time.
- Broad Compatibility: Compatible with over 75 tools in the Toro 60V Flex-Force Power System.
- High Capacity: Offers 33% more capacity than previous largest 60V Flex-Force batteries.
- Fast Charging: Achieves a 100% charge in approximately 50 minutes for the largest battery, surpassing the charging speed of larger, lower voltage batteries.
- Fuel Gauge: Features a 4-light LED fuel gauge to display remaining runtime.
- Integrated Carrying Handle: Designed for easy transport.
- Interchangeable Design: Allows for cost savings on future bare tool purchases.
- Voltage Rating: Battery manufacturer rating = 60-Volts maximum and 54-Volt typical usage; actual voltage varies with load.

Image 2: Toro Flex-Force Power System highlighting battery compatibility with various tools.
3. Setup
Before first use, fully charge the battery. Refer to your Toro 60V charger's instruction manual for specific charging procedures. Ensure the battery is securely inserted into the charger until the charging indicator lights confirm proper connection and charging status.
When inserting the battery into a tool, align the battery with the tool's battery slot and slide it in until it clicks into place. Ensure a firm connection to prevent accidental dislodgement during operation.

Image 3: Man demonstrating the use of a Toro 60V Flex-Force string trimmer with a battery backpack system, illustrating battery integration.
4. Operating Instructions
The Toro 60V MAX Flex-Force 10.0 Ah Lithium-Ion Battery is designed for use with a variety of Toro 60V Flex-Force tools. Always ensure the battery is fully charged before beginning any task to maximize runtime and performance.
4.1. Checking Battery Charge
Press the button on the battery's fuel gauge to check the charge level. Four illuminated LED lights indicate a full charge, while fewer lights indicate a lower charge. Recharge the battery when only one light is flashing or illuminated.
4.2. Using with Compatible Tools
Insert the battery into the designated slot on your Toro 60V Flex-Force tool. Ensure it clicks securely into place. For tools requiring extended runtime or to reduce tool weight, consider using the optional backpack system (if applicable to your tool model) which allows the battery to be carried separately and connected via a tether.
4.3. Optimal Performance
For demanding tasks, the 10.0 Ah battery provides extended power and runtime. RunSmart technology automatically adjusts power output to match the task, ensuring efficient use of battery life. Avoid continuously running tools at maximum power if not necessary, as this can reduce overall runtime.
Video 1: Demonstration of the Toro 10.0 Ah battery with various Flex-Force tools, including the backpack system, blower, hedge trimmer, string trimmer, and lawn mower.
Video 2: A person using a Toro 60V Flex-Force snow blower, demonstrating battery power in winter conditions.
5. Maintenance
5.1. Charging
Always use a genuine Toro 60V Flex-Force charger. Charge the battery in a well-ventilated area, away from direct sunlight and moisture. Do not charge batteries that are wet or damaged. Allow the battery to cool down before charging if it has been recently used in a demanding application.
5.2. Storage
Store the battery in a cool, dry place, away from extreme temperatures. For long-term storage, it is recommended to store the battery with a partial charge (around 50-75%) rather than fully charged or completely depleted. Do not store the battery in direct sunlight or where temperatures may exceed 104°F (40°C).
5.3. Cleaning
Keep the battery terminals clean and free of debris. Use a dry cloth to wipe down the battery. Do not use water or cleaning solutions directly on the battery.
6. Troubleshooting
6.1. Battery Not Charging
- Ensure the charger is properly plugged into a working power outlet.
- Verify the battery is correctly seated in the charger.
- Check for any visible damage to the battery or charger. If damaged, do not use and contact customer support.
- Allow the battery to cool if it was recently used, as some chargers have temperature protection.
6.2. Short Runtime
- Ensure the battery is fully charged before use.
- Operating tools at maximum power settings or in heavy-duty conditions will consume battery power faster. Adjust settings as needed.
- Extreme temperatures (very hot or very cold) can affect battery performance and runtime.
- Over time, all batteries experience degradation. If runtime significantly decreases, consider replacing the battery.
6.3. Tool Not Operating with Battery
- Confirm the battery is fully charged and securely inserted into the tool.
- Check the tool's power switch and safety mechanisms.
- Ensure the tool is compatible with the Toro 60V Flex-Force battery system.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | 66810-00 |
| Battery Type | Lithium-Ion |
| Voltage | 60V MAX (54V typical usage) |
| Capacity | 10.0 Amp Hours |
| Product Dimensions | 6 x 4 x 4 inches |
| Item Weight | 9 pounds |
| Manufacturer | The Toro Company |
| Recommended Uses | Lawn Mower and other compatible Toro 60V Flex-Force tools |
8. Warranty and Support
For warranty information, please refer to the warranty card included with your product or visit the official Toro website. For technical support, replacement parts, or service inquiries, please contact Toro Customer Service or an authorized Toro service dealer. Keep your purchase receipt and product model number (66810-00) handy for faster service.
Online Resources:
- Visit the Toro Store on Amazon for additional products and information.
- Refer to the official Toro website for the most up-to-date product manuals and support.





