Introduction
The Thumper Lithium8 is a professional-grade, battery-powered percussive massager designed for both chiropractic and home use. It provides deep tissue massage to relieve stress and reduce muscle pain. This manual provides essential information for the safe and effective operation and maintenance of your device.

Image: Top view of the Thumper Lithium8 Percussive Massager, showcasing its eight massage spheres.
Safety Information
WARNING: This product can expose you to chemicals including di(2-ethylhexyl) phthalate (DEHP), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
- Do not use the massager on broken skin, swollen areas, or inflamed skin.
- Consult a physician before use if you have any medical conditions, are pregnant, or have a pacemaker.
- Keep out of reach of children.
- Use only the provided charger and battery.
- Do not immerse the device in water or other liquids.
Setup
1. Charging the Battery
Before first use, fully charge the Lithium-Ion battery. Connect the charger to a power outlet and insert the battery into the charging dock. The indicator light on the charger will show the charging status. A full charge typically takes several hours.

Image: The Thumper Lithium8 battery charger with a Lithium-Ion battery inserted, ready for charging.
2. Inserting the Battery
Once charged, slide the battery into the designated compartment on the massager until it clicks securely into place. Ensure the battery is fully seated to establish proper electrical contact.

Image: A close-up view of the Thumper Lithium8 Lithium-Ion battery, ready for insertion into the massager or charger.
Operating Instructions
1. Powering On/Off
Press the power button located on the control panel to turn the massager on. Press it again to turn the device off.
2. Adjusting Speed
The Thumper Lithium8 offers five speed settings, ranging from 20 to 40 pulses per second. Use the up and down arrow buttons on the control panel to select your desired intensity. Start with a lower speed and gradually increase as comfortable.

Image: The control panel of the Thumper Lithium8, showing the power button and speed adjustment arrows.
3. Application
Apply the massager to the desired body area. The patented percussive action focuses energy deep into the muscle tissue, promoting relaxation and relief. The dual drive system ensures balanced operation and minimizes feedback to the handle, enhancing user comfort.
- For a full body massage, glide the massager over large muscle groups such as the back, shoulders, and legs.
- Adjust pressure as needed; the device is designed to be effective with minimal downward force.
- The massager can be used for approximately 5-8 minutes for a full body session.

Image: The Thumper Lithium8 massager being used on a person's upper back, demonstrating its application.

Image: The Thumper Lithium8 massager being used on a person's leg, illustrating its versatility for different body parts.
Product Introduction Video
Video: An official introduction to the Thumper Lithium8, demonstrating its features and use. This video highlights the cordless operation, swappable battery, and percussive action.
Maintenance
Cleaning
Wipe the massager with a soft, damp cloth after each use. Do not use abrasive cleaners or immerse the device in water. Ensure the device is completely dry before storage or next use.
Storage
Store the massager in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, ensure the battery is partially charged (around 50%) to prolong its lifespan.
Troubleshooting
- Device does not turn on: Ensure the battery is fully charged and correctly inserted into the massager. Check if the power button is pressed firmly.
- Weak or inconsistent massage: Verify the battery charge level. A low battery can result in reduced performance. Ensure the massage spheres are clean and free from obstructions.
- Battery not charging: Confirm the charger is properly plugged into a working outlet and the battery is correctly seated in the charging dock. Check for any visible damage to the charger or battery.
- Unusual noise or vibration: Discontinue use immediately. Check for any loose parts or foreign objects. Contact customer support if the issue persists.
Specifications
| Model Number | 14-1088 |
| Product Dimensions | 10.6 x 10.2 x 7.9 inches |
| Item Weight | 8.82 Pounds (4 Kilograms) |
| Power Source | Battery Powered (1 D battery included) |
| Material | Plastic |
| Speed Settings | 5 (20 to 40 pulses per second) |
| Battery Type | Lithium-Ion |

Image: Diagram showing the dimensions of the Thumper Lithium8 massager: 11 inches high, 8 inches deep, and 13 inches wide.
Warranty
The Thumper Lithium8 Percussive Massager comes with a 2-year warranty. This warranty covers manufacturing defects and ensures the product is free from defects in material and workmanship under normal use. Please retain your proof of purchase for warranty claims.
Support
For further assistance, technical support, or warranty inquiries, please visit the official Thumper website or contact their customer service department. Refer to the packaging or the Thumper website for the most current contact information.