Long shifts deserve more than a lukewarm coffee. The VoltHeater Thermos Flask keeps your drinks piping hot for up to 24 hours. Built tough for the job site, the work truck, or wherever the day takes you.
No outlets. No excuses. Just hot coffee, tea, or soup whenever you need it.
Built for the Worker, Not the Office
Whether you're on a construction site, under a hood, or hauling cross-country, this flask goes where you go. Double-wall vacuum insulation locks in heat through long shifts, cold mornings, and everything in between.
✅ Keeps drinks hot up to 24 hours ✅ Double-wall stainless steel vacuum insulation ✅ Leakproof screw-top lid ✅ Includes insulated carry bag with shoulder strap — hands-free on the job ✅ Durable stainless steel construction ✅ Available in 500ml, 750ml, 1000ml & 1500ml
Comes With Everything You Need Every flask includes a matching insulated carry bag so you can grab it and go — no fumbling around, no leaving it behind.
Pairs Perfectly With Your VoltHeater Add the VoltHeater Heated Lunchbox and you've got a complete hot meal setup — anywhere, anytime. No microwave. No outlet. No problem.
SIZE GUIDE:
Size
Best For
500ml
Quick shifts, light coffee drinkers
750ml
Everyday use, most workers
1000ml
Long shifts, heavy coffee drinkers ⭐ Most Popular
1500ml
All-day jobs, truck drivers, double shifts
Real Experiences with Volt Heater
4.83 ★ (6)
Verified
Your Lunch, Upgraded!
Say goodbye to cold meals and waiting in line for a microwave. VoltHeater gives you hot, ready-to-eat food wherever you are.
Technical Specifications
PRODUCT DESCRIPTION:
A Hot Drink Wherever the Job Takes You.
Long shifts deserve more than a lukewarm coffee. The VoltHeater Thermos Flask keeps your drinks piping hot for up to 24 hours. Built tough for the job site, the work truck, or wherever the day takes you.
No outlets. No excuses. Just hot coffee, tea, or soup whenever you need it.
Built for the Worker, Not the Office
Whether you're on a construction site, under a hood, or hauling cross-country, this flask goes where you go. Double-wall vacuum insulation locks in heat through long shifts, cold mornings, and everything in between.
✅ Keeps drinks hot up to 24 hours ✅ Double-wall stainless steel vacuum insulation ✅ Leakproof screw-top lid ✅ Includes insulated carry bag with shoulder strap — hands-free on the job ✅ Durable stainless steel construction ✅ Available in 500ml, 750ml, 1000ml & 1500ml
Comes With Everything You Need Every flask includes a matching insulated carry bag so you can grab it and go — no fumbling around, no leaving it behind.
Pairs Perfectly With Your VoltHeater Add the VoltHeater Heated Lunchbox and you've got a complete hot meal setup — anywhere, anytime. No microwave. No outlet. No problem.
SIZE GUIDE:
Size
Best For
500ml
Quick shifts, light coffee drinkers
750ml
Everyday use, most workers
1000ml
Long shifts, heavy coffee drinkers ⭐ Most Popular
1500ml
All-day jobs, truck drivers, double shifts
Your Next Adventure Starts Now
Don't wait! Grab the portable heater built to keep up with every moment, every move.
Limited-time offer: Get your Volt Heater today and never miss a moment. Perfect for every adventure, every journey.
Who this product is for
Office Workers & Commuters Heat lunch at your desk without waiting for shared microwaves.
Tradespeople & Job-Site Workers Ideal for long shifts where hot meals are hard to come by.
Truck Drivers & Travellers Enjoy warm meals on the road without stopping at restaurants.
Students A portable solution for campuses and long study days.
Why Customers love em
Truly cordless heating
Large 1L meal capacity
Smart timers & temperature control
Designed for work, travel, and daily use
Easy to clean, food-safe materials
Problems this lunchbox solves
No More Cold Lunches Enjoy warm, home-cooked meals wherever you are — at work, in your car, or outdoors.
No Microwave Needed Perfect for workplaces, job sites, or travel situations where microwaves aren’t available or convenient.
Saves Money & Time Reduce spending on takeout and fast food by heating meals you’ve already prepared.
Frequently Asked Questions
Have questions about our Volt Heater? We’ve gathered the most common questions and answers.
What type of food can I heat in it?
You can heat most cooked foods such as rice, pasta, vegetables, meats, soups, and stews. For best results, avoid frozen solid foods and very thick or dry items without moisture.
How does the lunchbox heat food without being plugged in?
The lunchbox uses a built-in rechargeable battery system (6 × 4000mAh) that powers an internal heating plate, allowing you to heat food anywhere without a wall outlet.
Can I control the temperature?
Yes. The lunchbox offers multiple temperature settings: 40°C, 45°C, 50°C, 55°C, and 68°C, allowing you to gently warm or fully heat your meal.
How long does it take to heat food?
Heating time varies based on portion size and starting temperature. Most meals heat fully within 20–40 minutes. You can choose heating times from 20 to 100 minutes.
Can I set it to heat later?
Yes. The reservation (delayed start) timer allows you to schedule heating 30, 60, 90, or 100 minutes in advance.
How long does the battery last on a full charge?
Once fully charged the lunchbox can heat food for up to 90 minutes, depending on the selected temperature and heating time.
Does it make noise while heating?
No. The lunchbox heats silently, making it perfect for offices, classrooms, and shared spaces.
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Customers are saying
4.83 ★ (6)
Verified
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