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EAST OAK Cordless Electric Lunch Box for Adults, Heated Lunch Box Battery Powered with Automatic Heating, 5.5 Cups Portable Food Warmer with Removable Tray Divider

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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon

Arrives Monday, Mar 23
Order within 21 hours and 22 minutes
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Color: Black


Features

  • Portable Battery-Powered Heating: EAST OAK adult lunch box offers battery power for meals on the go. Whether at work, in the car, or outdoors, you can heat your food without an outlet. Its 10,000mAh battery ensures one-time heating and lasting warmth, so you can enjoy hot meals anywhere
  • Smart Timer Function: EAST OAK heated lunch box for men includes a smart timer for setting your mealtime. It automatically heats your food in advance, ensuring a hot meal when youre ready. The memory function remembers your last settings, so no adjustments are needed each time
  • 5.5 Cups Capacity: EAST OAK mens lunchbox for work holds 5.5 cups (about 1.3 L or 44 oz), accommodating about 3 servings of pasta, or 12 frozen vegetable dumplings, or a single serving of lasagna with soup. Its design allows for easy transport, making it convenient to enjoy home-cooked meals anywhere
  • Removable Divider Accessory: EAST OAK food warmer lunch box includes a removable divider, letting you customize your meal storage. This feature allows you to separate dishes like mac and cheese, casseroles, and steamed veggies, keeping your meals organized and ready to enjoy whenever you are
  • Reliable Leak-Proof Design: EAST OAK heatable lunchbox has a silicone seal on the lid, ensuring a secure closure that prevents leaks. Perfect for office workers and construction professionals, it keeps soups and sauces contained while youre on the go. Enjoy mess-free, warm meals anytime
  • Effortless Cleaning: EAST OAK hot lunch box for adults features a removable meal container and lid that are dishwasher safe, along with the fork, spoon, and divider. This design makes hygiene easyjust place the washable parts in the dishwasher for hassle-free cleaning
  • Rich Accessories Included: EAST OAK lunch warmer portable for work includes essential accessories like forks and spoons. It features a removable divider to separate foods and comes with a portable insulated bag that can be carried by hand or over the shoulder, making it perfect for on-the-go meals
  • Great Present for Workers: EAST OAK self heating lunch box for men is perfect for blue-collar workers and office-goers who want hot meals on the job. It's a thoughtful surprise for friends and family, ensuring they enjoy a warm lunch after long hours at work. Convenient and practical, it enhances every meal

Description

Quick Tips for Using Your Lunch Box: 1. The top of the lunch box lid has a space for your fork and spoon, with a groove and a snap-on transparent cover. If the cover gets loose or falls off, just snap it back on. 2. The lid will only close properly when the meal container is inside. If you remove the container, the lid won’t close. Always make sure the container is in place before closing the lid. To Use The Lunch Box's Scheduled Heating Function: 1. Please first set the current time to match the actual time, then set the meal time. 2. For first-time use, please fully charge the device. Before each use, check the battery level. It should be at least 90%. 3. Please note that the lunch box must be powered on to activate automatic heating. Important Information About Battery-Powered Lunch Boxes: Our portable battery-powered lunch box lets you heat food without plugging in, so you can enjoy warm meals anywhere—at work, on a road trip, or during outdoor adventures. However, the large-capacity rechargeable battery adds extra weight, making the heater weigh 2.8 pounds, slightly more than the typical 2 pounds of standard electric lunch boxes that require plugging in. To Ensure Battery Longevity: 1. Only Use the Original Charger: Other chargers (even if they fit) are not compatible! Using any other charger may permanently damage your product. 2. Only Use the Original Battery: Other battery packs are not compatible. For Best Heating Results: 1. The display shows the temperature of the heating element, while the actual food temperature is usually lower to avoid overheating, which can cause burns and affect taste. Our lunch box is designed to evenly heat food to the ideal temperature after 2 hours. 2. Foods with higher moisture content heat more effectively. If moisture is low, adding a small amount of water or increasing the set heating temperature (note that this temperature refers to the heating element, not the food itself) can be beneficial. 3. Please consider contact with the container bottom: The device heats from the bottom, so it’s helpful for food or water to be in contact with the container bottom to capture heat. For irregularly shaped foods like chicken legs, adding a bit of sauce or a few drops of water can assist in gathering steam and heating the food more thoroughly. 4. It’s recommended to use the original stainless steel container: For compatibility, please use only the original container. 5. You might want to use an insulated bag: Placing the device in an insulated bag, whether original or otherwise, can help retain heat and improve food warmth. Caution: The inner container is made of food-grade 304 stainless steel and contains nickel. Those allergic to nickel should avoid use. E1: If a device fails to power on, you can force reset the embedded controller (EC) using the following steps: 1. Remove the four screws. 2. Pry open the left-side clip. 3. Pry open the right-side clip. 4. Remove the battery cover. 5. Pull out the battery connector. 6. Disconnect the battery connector. 7. With the screen black, press the power button several times. 8. Reassemble. 9. Repair complete.

Color: Black


Material: Stainless Steel


Brand: EAST OAK


Recommended Uses For Product: Car, Office, Outdoors, Picnic, Truck


Age Range (Description): Adult


Special Feature: 5.5 Cups Capacity, Battery Powered, Heat Then Keep Warm for 1 Hour, Complete Accessory Set, Dishwasher Safe, Leak Resistant, Scheduled Heating, Direct Time Setting Mode, Memory Settings, With Carry Handle See more


Capacity: 5.5 Cups


Theme: Car, Office, Outdoors, Travel, Truck


Product Dimensions: 12"D x 8"W x 9"H


Pattern: Solid


Color: Black


Material: Stainless Steel


Brand: EAST OAK


Recommended Uses For Product: Car, Office, Outdoors, Picnic, Truck


Age Range (Description): Adult


Special Feature: 5.5 Cups Capacity, Battery Powered, Heat Then Keep Warm for 1 Hour, Complete Accessory Set, Dishwasher Safe, Leak Resistant, Scheduled Heating, Direct Time Setting Mode, Memory Settings, With Carry Handle


Capacity: 5.5 Cups


Theme: Car, Office, Outdoors, Travel, Truck


Product Dimensions: 12"D x 8"W x 9"H


Pattern: Solid


Item Weight: 2.8 Pounds


Product Care Instructions: The display shows the heating element temperature while keeping food slightly cooler for safety. Moist foods heat most effectively, so adding water to dry items may help. Always ensure food contacts the container base directly, adding sauce or water for irregularly shaped items. To heat faster, increase the temperature setting or begin heating 20 to 30 minutes earlier. For optimal results, use the original container with an insulated bag and allow approximately 2 hours for thorough, even heating, To maintain battery life, use only the original charger and battery. For scheduled heating, first set the correct current time, then your meal time. Fully charge before first use and keep battery above 90 percent for each use. The lunch box must stay powered on at least two hours before meal time to activate heating. The lid includes utensil storage with a snap on cover that can be pressed back if loose. The lid only closes when the container is properly inserted.


Included Components: 1× 5.5-Cup Stainless Steel Meal Container, 1× Fork and Spoon Set, 1× Packaging Box, 1× Portable Lunch Box Warmer, 1× Power Cord, 1× Removable Tray Divider, 1× Single Layer Insulated Lunch Bag, 1× User Manual


Number of Compartments: 1


Closure Type: Snap


Style: Single-layer Bag


Shape: Rectangular


Product Dimensions: 9"L x 8"W x 12"H


Unit Count: 1.0 Count


Number of Items: 1


Item Form: Bag, Box


UPC: 850066822876


Number of Pieces: 1


Manufacturer: EAST OAK


Item Weight: 2.8 pounds


Item model number: HM899


Batteries: 1 Lithium Ion batteries required. (included)


Date First Available: October 15, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Mar 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Cool item
Color: Blue
I’m very happy with this electric lunch box. It heats food evenly and keeps meals warm for a long time, which is perfect for work or travel. The cordless design is very convenient, and the battery lasts long enough for daily use. The build quality feels solid, it’s easy to clean, and the size is just right for a full meal. It’s a practical and reliable solution if you want to enjoy hot food anywhere. Definitely worth buying! ... show more
Reviewed in the United States on February 27, 2026 by Andrei

  • I highly recommend it
Color: Black
This refillable lunch box is very practical and easy to use. It heats food evenly and keeps it warm for a long time, The size is perfect for a full meal, and the rechargeable and wireless design makes it ideal for work or road trips. Overall, it is well made, reliable and very convenient.
Reviewed in the United States on March 10, 2026 by Danaisy Danaisy

  • Highly recommend for anyone who wants a reliable and portable way to enjoy warm meals on the go!
Color: Black
I’m very happy with this electric lunch box. It’s incredibly convenient, especially if you don’t have access to a microwave during the day. The automatic heating feature works great — it warms up food evenly without drying it out. The battery life is impressive, and I love that it’s completely cordless. It makes it perfect for work, travel, or even long car rides. The 5.5-cup capacity is a good size for a full meal, and the removable tray divider is very practical for keeping different foods separate. ... show more
Reviewed in the United States on March 1, 2026 by Iuliia

  • Great Cordless Lunch Box for Work and Travel
Color: Blue
Very convenient and easy to use. I love that it’s cordless — I can heat my food anywhere without looking for an outlet. It heats evenly and gets the food really hot. Good size for a full meal and easy to clean. A little heavy, but not a big deal. Totally worth it.
Reviewed in the United States on February 27, 2026 by Bekir

  • Customer say
Color: Black
Game-changer for work lunches – finally hot food without a microwave! As someone who works long shifts on construction sites with no access to outlets or microwaves, this EAST OAK cordless heated lunch box has been a total lifesaver. I was skeptical about the battery-powered heating at first, but it actually works incredibly well. The 5.5-cup capacity is perfect for a hearty meal (I fit rice, chicken, veggies, and some soup without issue), and the removable divider keeps everything separate. I charge it overnight, set the heating timer in the morning (super easy digital display), and by lunch it’s steaming hot – like fresh-out-of-the-microwave hot. The battery lasts multiple heats per charge, and the auto-warm mode keeps it nice even if I’m delayed. No leaks thanks to the tight silicone seal, the included utensils and insulated bag are a nice bonus, and cleanup is straightforward since the inner tray is removable. The LED screen shows time, battery level, and mode clearly – no guesswork. If you hate cold lunches or eat on the go (truck drivers, field workers, office folks without break room microwaves), this is worth every penny. Best lunch upgrade I’ve made in years. Will buy the XL version next for even bigger meals! ... show more
Reviewed in the United States on February 22, 2026 by Dan

  • convenient way to have an actually hot, homemade meal anywhere without hunting down a microwave
Color: Black
The 5.5‑cup capacity is perfect for a full adult portion plus a side, and the removable divider makes it easy to keep things like rice and saucy dishes separate without mixing. The built‑in 10,000 mAh battery means I can heat lunch at my desk, in the car, or outside with no outlet, and one full charge is enough to fully reheat a meal and keep it warm. I really like the automatic heating timer and memory function: I just set my mealtime once, and it preheats so my food is ready without me babysitting the controls. The insulated carrying bag, leak‑resistant lid, and included utensils make it feel like a complete kit instead of just a container. There are a couple of trade‑offs: because of the large battery it’s a bit heavier than plug‑in lunch boxes, and you do need to remember to charge it and keep the battery above about 90% for best performance. It also works best with moist foods, so I add a splash of water or sauce to rice or leftovers to help them heat more evenly. Overall, if you want reliable hot meals at work, on long commutes, or outdoors and don’t have access to a microwave, this lunch box is absolutely worth it and feels very thoughtfully designed. ... show more
Reviewed in the United States on February 11, 2026 by Sweet_Gato

  • This is an almost perfect heat up lunchbox
Color: Forest Green
We have been struggling with hot lunches at school for our middle schooler. After moving, the new school doesn’t have microwaves so it was hard to keep them happy with cold lunches. This is genius! Size is perfect. Set it and it heats up. It gets hot! Which is exactly what we wanted. Well made, easy to use. The seal holds perfectly. The only reason I gave this a 4 instead of a 5 is because of the seal. You MUST take it off to wash and clean daily. My worry is the seal is going to get stretched out or break. I wish it came with an additional seal for just that reason. ... show more
Reviewed in the United States on February 9, 2026 by Chicken Lady in VA

  • Perfect cordless solution
Color: Black
I have previously purchased two electric lunch boxes that could heat food either by plugging them into a wall outlet or a car's 12V charger. However, since my wife’s job doesn't allow her to heat her food using a car or a power grid, I decided to look for alternatives so she could enjoy a warm lunch. At first glance, this has been a great purchase. It feels well-built with sturdy plastics and has some weight to it, likely due to the large battery. The food container isn't huge, but it's sufficient for an average person. It heats up relatively quickly—in about 30 minutes, your food is hot if it's a standard portion. I consider this a good buy, especially for those who have no other way to heat their meals. ... show more
Reviewed in the United States on March 12, 2026 by Noel

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