1. Introduction
This manual provides essential information for the safe and effective use of your SCESMIA KB2540C-06 replacement battery. This 40.0V, 4000mAh Lithium-Ion battery is designed to power compatible 40VMaxPowerWasherHandheld and 40VMaxStringTrimmer devices, including models like KPC2040-06. Please read this manual thoroughly before initial use and retain it for future reference.

Figure 1: SCESMIA KB2540C-06 Replacement Battery. This image shows the overall appearance of the black battery pack, highlighting its robust casing and general form factor.
2. Safety Information
Always observe the following safety precautions to prevent injury or damage to the battery and connected devices:
- Charging: Use only chargers specified by the original equipment manufacturer for 40VMaxPowerWasherHandheld or 40VMaxStringTrimmer batteries. Do not attempt to charge the battery with incompatible chargers.
- Temperature: Do not expose the battery to extreme temperatures (above 60°C / 140°F or below -20°C / -4°F). Avoid direct sunlight and heat sources.
- Physical Damage: Do not drop, puncture, or disassemble the battery. If the battery casing is damaged, discontinue use immediately.
- Water Exposure: Keep the battery dry. Do not immerse it in water or expose it to rain.
- Short Circuit: Do not short-circuit the battery terminals. Keep metal objects away from the terminals.
- Disposal: Dispose of batteries responsibly according to local regulations. Do not dispose of batteries in household waste or by incineration.
- Children: Keep the battery out of reach of children.

Figure 2: Top view of the battery showing various safety symbols. These symbols typically indicate warnings against incineration, water exposure, high temperatures, and improper disposal, reinforcing the safety guidelines.
3. Product Specifications
| Specification | Value |
|---|---|
| Model Number | KB2540C-06 |
| Compatible Models | 40VMaxPowerWasherHandheld, 40VMaxStringTrimmer, KPC2040-06 |
| Voltage | 40.0V |
| Capacity | 4000mAh / 160.00Wh |
| Battery Cell Composition | Lithium Ion |
| Dimensions (L x W x H) | 168.80 x 113.20 x 56.20mm (6.65 x 4.46 x 2.21 inches) |
| Weight | 1342g (2.96 pounds) |
| Certifications | FCC, ROHS, CE certified |

Figure 3: Bottom view of the battery, displaying the product label with model number, voltage, and capacity details. This label provides key identification and specification information for the battery.
4. Setup and Initial Charge
Upon receiving your new battery, it is recommended to perform an initial charge to optimize its lifespan and performance.
- Unpack: Carefully remove the battery from its packaging.
- Inspect: Check the battery for any visible signs of damage. Do not use if damaged.
- Charge: Connect the battery to a compatible 40VMaxPowerWasherHandheld or 40VMaxStringTrimmer battery charger. Allow the battery to charge for 2-3 hours before its first use. This initial charge helps to condition the battery cells for optimal long-term performance.
- Indicator: Refer to your charger's manual for charge status indicators.
5. Operation
This battery is designed for seamless integration with compatible 40VMaxPowerWasherHandheld and 40VMaxStringTrimmer devices.
- Inserting the Battery: Align the battery with the battery compartment of your compatible device. Slide the battery firmly into place until it clicks, indicating it is securely locked.
- Removing the Battery: Locate the battery release latch or button on your device. Press or slide the latch/button and carefully pull the battery out of the compartment.
- Usage: Once inserted, the battery will power your device. Always ensure the battery is fully charged for optimal performance.

Figure 4: Side view of the battery, illustrating the connection port designed to interface with compatible power tools. This port ensures a secure and efficient power transfer to the device.
6. Maintenance and Storage
Proper maintenance and storage will extend the life of your battery.
- Cleaning: Use a dry, soft cloth to wipe the battery's exterior. Do not use harsh chemicals or abrasive cleaners. Keep the terminals clean and free of debris.
- Storage: Store the battery in a cool, dry place, away from direct sunlight and extreme temperatures. For long-term storage, it is recommended to store the battery with a partial charge (around 50%).
- Long-Term Storage: If storing for extended periods, periodically charge the battery to maintain a partial charge (every 3-6 months) to prevent deep discharge, which can damage the battery.
7. Troubleshooting
If you encounter issues with your battery, consider the following common solutions:
- Battery Not Charging:
- Ensure the charger is properly plugged into a working power outlet.
- Verify the battery is correctly seated in the charger.
- Check if the charger or battery is damaged. Do not use if damaged.
- Ensure the charger is compatible with 40V Lithium-Ion batteries.
- Device Not Powering On:
- Ensure the battery is fully charged.
- Verify the battery is securely inserted into the device.
- Check the device itself for any malfunctions.
- Reduced Run Time:
- The battery may be nearing the end of its lifespan.
- Ensure the battery is fully charged before each use.
- Operating in extreme temperatures can affect performance.
If problems persist after attempting these solutions, please contact customer support.
8. Warranty and Support
For warranty information or technical support regarding your SCESMIA KB2540C-06 replacement battery, please refer to the purchase documentation or contact the seller directly. Ensure you have your purchase details and the battery's model number (KB2540C-06) available when contacting support.
For general inquiries or to report issues, please visit the SCESMIA brand page on Amazon or contact their customer service as provided by your retailer.