EAST OAK B0F4JKC71Y
EAST OAK Heated Lunch Box User Manual
Model: B0F4JKC71Y
1. Product Overview
The EAST OAK Heated Lunch Box is a portable, battery-powered device designed to heat food without requiring an external power outlet. It features a 10,000mAh rechargeable battery, a stainless steel inner container, and a scheduled heating function, making it suitable for various environments such as work, travel, or outdoor activities.
2. Initial Setup
2.1 First-Time Use and Charging
Before using the lunch box for the first time, ensure it is fully charged. Check the battery level before each use; it should be at least 90% for optimal performance.
2.2 Lid and Container Assembly
- The lunch box lid is designed to close properly only when the meal container is placed inside. Ensure the container is correctly positioned before attempting to close the lid.
- The top of the lid includes a compartment for a fork and spoon, secured by a transparent snap-on cover. If this cover becomes loose, simply snap it back into place.
3. Operating Instructions
3.1 Scheduled Heating Function
To utilize the automatic scheduled heating feature:
- Set the current time on the device to match the actual time.
- Proceed to set your desired meal heating time.
- Ensure the lunch box is powered on to activate the automatic heating schedule.
3.2 Heating Best Practices
- Temperature Display: The display shows the heating element's temperature, not the food's actual temperature. The device is designed to heat food evenly to an ideal temperature within approximately 2 hours, avoiding overheating that could affect taste or cause burns.
- Moisture Content: Foods with higher moisture content heat more efficiently. For drier foods, adding a small amount of water or increasing the set heating temperature (referring to the heating element) can improve results.
- Container Contact: The device heats from the bottom. For optimal heat transfer, ensure food or water is in direct contact with the bottom of the container. For irregularly shaped foods, adding a bit of sauce or a few drops of water can help generate steam and ensure thorough heating.
- Original Stainless Steel Container: For compatibility and best performance, always use the original stainless steel container provided with the lunch box.
- Insulated Bag: Using an insulated bag, whether the original or another, can help retain heat and keep food warmer for longer.
4. Care and Maintenance
4.1 Battery Longevity
- Use Original Charger: Only use the charger provided by EAST OAK. Using incompatible chargers, even if they fit, can permanently damage the product.
- Use Original Battery: Only use the original battery pack. Other battery packs are not compatible.
4.2 Cleaning and Storage
- Do not clean the heating base with water or submerge it in liquids for disinfection.
- If the lunch box will not be used for an extended period, recharge the battery at least once per month to prevent deterioration.
5. Troubleshooting
5.1 E1 Error: Self-Service Repair Guide
If your device displays an "E1" error or fails to power on, you can attempt to force reset the embedded controller (EC) by following these steps:

Image: Visual guide for resolving the E1 error by accessing and resetting the battery connection.
- Remove the four screws securing the base.
- Carefully pry open the left-side clip.
- Carefully pry open the right-side clip.
- Remove the battery cover.
- Pull out the battery connector from its housing.
- Disconnect the battery connector.
- With the screen black, press the power button several times to discharge any residual power.
- Reassemble the lunch box by reversing the steps.
- The repair is complete.
6. Product Specifications
| Brand | EAST OAK |
| Model Number | B0F4JKC71Y |
| Material | Stainless Steel |
| Capacity | 1.3 Liters |
| Special Feature | Battery Powered, Heat Then Keep Warm for 1 Hour |
| Product Dimensions | 9"D x 12"W x 8"H |
| Item Weight | 1.04 Kilograms |
| Included Components | 1× Portable Lunch Box Warmer |
7. Important Safety Information
The inner container is made of food-grade 304 stainless steel and contains nickel. Individuals with a known nickel allergy should avoid using this product.
8. Warranty and Customer Support
For warranty information, technical support, or any product-related inquiries, please contact EAST OAK customer service through the retailer where the product was purchased or visit the official EAST OAK website.
Related Documents - B0F4JKC71Y
![]() |
East Oak LED Patio Umbrella Owner's Manual - Models PTU23001-PTU23004 Comprehensive owner's manual for the East Oak LED Patio Umbrella (Models PTU23001-PTU23004). Includes assembly instructions, operating guide, safety precautions, care and maintenance tips, technical specifications, and warranty information. |
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.
