Introduction
Thank you for choosing the Nextmug Temperature-Controlled Self-Heating Coffee Mug. This manual provides essential information for the safe and effective use of your new mug. The Nextmug is designed to keep your hot beverages at your preferred temperature for extended periods, enhancing your drinking experience.
Please read this manual thoroughly before first use and retain it for future reference.

Image: The Nextmug in black, showcasing its sleek design and temperature indicator lights.
Important Safety Information
To ensure safe operation and prevent damage, observe the following precautions:
- Hand Wash Only: The Nextmug is not dishwasher safe. Hand wash the mug's interior and exterior carefully. Do not submerge the mug's base or the charging coaster in water.
- Electrical Safety: Keep the charging coaster and power adapter away from water or other liquids. Do not operate if the power cord or coaster is damaged.
- Hot Surfaces: The mug's interior and contents will be hot during operation. Exercise caution when handling.
- Intended Use: Use only with hot beverages. Do not use for cooking or heating other substances.
- Children and Pets: Keep the mug and charging components out of reach of children and pets.
- Battery Care: The mug contains a lithium-ion battery. Do not attempt to replace or tamper with the battery. Dispose of the product responsibly according to local regulations.
What's Included
Your Nextmug package contains the following items:
- One (1) 14 oz. Nextmug Temperature-Controlled Mug
- One (1) Docking Coaster
- One (1) 6-foot Power Adapter (US)
- One (1) Spill-Resistant Lid

Image: A visual representation of the Nextmug, its docking coaster, and the included spill-resistant lid.
Setup
Follow these steps for initial setup:
- Unpack: Carefully remove all components from the packaging.
- Charge: Connect the power adapter to the docking coaster and plug it into a wall outlet. Place the Nextmug onto the docking coaster. The LED lights on the mug's base will indicate charging status. Ensure the mug is fully charged before first use (approximately 2-3 hours).
- Clean: Before first use, hand wash the interior of the mug and the lid with warm, soapy water. Rinse thoroughly and dry. Do not submerge the mug's base or the coaster.

Image: A close-up view of the docking coaster, showing the charging pins.
Operating Instructions
The Nextmug features a simple control button for easy operation.
- Fill the Mug: Pour your desired hot beverage into the Nextmug.
- Power On: Press and hold the control button located on the side of the mug for approximately 2 seconds to turn it on. The LED lights will illuminate.
- Select Temperature: Briefly press the control button repeatedly to cycle through the three temperature settings: Warm, Hot, and Piping. The corresponding LED light will indicate the selected temperature.
- Enjoy: Place the spill-resistant lid on the mug to help maintain temperature and prevent spills. Enjoy your beverage at your preferred temperature.
- Power Off: Press and hold the control button for approximately 2 seconds to turn the mug off. The LED lights will extinguish.

Image: A close-up of the control button on the Nextmug, used for power and temperature selection.
Temperature Settings
- Warm: Maintains beverage at approximately 130°F (54°C).
- Hot: Maintains beverage at approximately 140°F (60°C).
- Piping: Maintains beverage at approximately 150°F (66°C).
Estimated Use Time
The battery life varies depending on the selected temperature setting and whether the mug is on the coaster or using the lid. The following table provides estimated use times:
| Setting | On Coaster (With Lid) | On Coaster (Without Lid) | Off Coaster (With Lid) | Off Coaster (Without Lid) |
|---|---|---|---|---|
| Warm (130°F) | Indefinite | Indefinite | 4.8 Hours | 2.1 Hours |
| Hot (140°F) | Indefinite | Indefinite | 4.0 Hours | 1.6 Hours |
| Piping (150°F) | Indefinite | Indefinite | 3.2 Hours | 45 Minutes |
Table: Estimated battery life for the Nextmug under various conditions and temperature settings.
Maintenance and Care
Proper care ensures the longevity of your Nextmug:
- Cleaning the Mug: Hand wash the interior and exterior of the mug with warm, soapy water. Use a soft sponge or cloth. Rinse thoroughly. Do not use abrasive cleaners or scrubbers.
- Cleaning the Lid: The spill-resistant lid can be hand washed with warm, soapy water.
- Cleaning the Coaster: Wipe the docking coaster with a dry or slightly damp cloth. Ensure it is completely dry before plugging it in or placing the mug on it.
- Storage: When not in use, store the mug and coaster in a dry place.
Troubleshooting
If you encounter issues with your Nextmug, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Mug not heating or turning on. | Low battery; Mug not properly seated on coaster; Mug is off. | Ensure mug is fully charged. Place mug firmly on the docking coaster. Press and hold the control button to turn on. |
| Beverage cools down too quickly. | Lid not used; Mug not on coaster; Extreme ambient temperature. | Always use the spill-resistant lid for optimal heat retention. Keep the mug on the docking coaster when possible. Avoid using in very cold environments. |
| LED lights not responding. | Mug is off; Battery is completely depleted. | Press and hold the control button to turn on. Place mug on the charging coaster to recharge. |
| Charging coaster not working. | Power adapter not connected; Outlet not working; Coaster damaged. | Check power adapter connection. Try a different power outlet. If damaged, discontinue use and contact support. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Nextmug by Nextboom |
| Model Number | MMA-1122 |
| Capacity | 14 oz. |
| Color | Black |
| Special Feature | Self-Heating, Temperature-Controlled |
| Recommended Uses | Home, Office for Hot Drinks |
| Included Components | Docking Coaster, Lid, Nextmug 14 oz., Power Adapter (US) |
| Product Care Instructions | Hand Wash Only |
| Item Weight | 2.1 pounds (0.95 Kilograms) |
| Product Dimensions | 4.75"W x 4.5"H |
| Batteries | 1 Lithium Ion battery (included) |
| UPC | 850043163008 |
| Manufacturer | Nextboom, Inc. |
Warranty and Support
For warranty information, technical support, or any questions regarding your Nextmug, please contact Nextmug by Nextboom customer service directly. Refer to the product packaging or the official Nextmug website for contact details.
Please have your model number (MMA-1122) and proof of purchase available when contacting support.





