Daily necessities-V Mini Portable USB Cup Warmer: USB-powered heating
Available Options
Ever left a perfectly good cup of coffee to go cold while you're buried in work? The Mini Portable USB Cup Warmer is here to fix that. It's a sleek heating coaster that plugs into any USB port—your laptop, a power bank, or a wall adapter—keeping drinks at an ideal 55°C (131°F). That's the sweet spot: hot enough to enjoy, but not so hot it burns your tongue. Smart thermostatic control does the heavy lifting, so your coffee, tea, or whatever stays just right, sip after sip.
This gadget is a lifesaver for the perpetually busy: professionals chained to their desks, students pulling all-nighters, or anyone who hates lukewarm beverages. Just set your mug on it, and it works its magic with ceramic, glass, or metal cups. Compact and lightweight, it slips into a bag for on-the-go warmth, whether you're at the office, library, or on a road trip. No more reheating or wasted drinks—just consistent, cozy sips, exactly when you need them.
- 55-degree thermostatic control
- Portable and compact design
- Compatible with various cups
- Energy-efficient operation
- USB-powered heating
General specs
- Brand: Daily necessities-V
- Seller: Joom
- Power Source: USB
- Temperature Control: 55 degrees Celsius thermostatic
- Compatibility: Works with various cup materials (ceramic, glass, metal)
- Dimensions: Compact and portable (specific dimensions not provided)
- Weight: Lightweight (specific weight not provided)
- First listed by seller: 8/24/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
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Mini Portable USB Cup Warmer USB-powered heating
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USB-Powered Smart Coffee Warmer Blue USB-powered operation
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USB-Powered Smart Coffee Warmer Green USB-powered for portability
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Smart Mug Warmer Green USB charging
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| Brand | Daily necessities-V | Chic Home | 3d printing machine | 3d printing machine | Health & Beauty PRODUCT | Chic Home |
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| Price | $18.94 | $15.57 | $10.74 | $9.87 | $28.06 | $31.17 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | August 14, 2025 | September 15, 2025 | August 29, 2025 | August 29, 2025 | August 30, 2025 | September 2, 2025 |
| Power Source | USB | USB | USB | USB | USB | USB |
| Compatibility | Works with various cup materials (ceramic, glass, metal) | Standard cups and mugs | Mugs, Cups | Standard Mugs | ||
Mini Portable USB Cup Warmer
Alexander T.
San Jose, CA
September 3, 2025
As a stay-at-home dad in San Jose, I'm always on the move with my kid, and cold coffee was a constant frustration. I picked this up after reading about it online—always hunting for a good deal, you know? The first time I used it, I set my ceramic mug on it while working on my laptop, and it kept my coffee at a nice warm temp for hours. No more microwaving or wasted drinks! It's very handy for my busy days, whether I'm at home or out with the family. It doesn't get super hot instantly, but once it's going, it's reliable. I'd recommend it to anyone who hates lukewarm drinks, but just be aware you need a USB power source. Overall, it's a solid little gadget that makes life a bit easier.
- Pros: This thing is a game-changer for keeping my coffee warm while I'm chasing my toddler around the house. It plugs right into my laptop or a power bank, so I can use it anywhere, and it maintains the perfect temperature—hot but not scalding. It's super compact and works with all my mugs, making it easy to toss in my bag for days out.
- Cons: It seems to take a little while to heat up from cold, and if the room is chilly, it struggles a bit to keep the drink hot enough. Also, it only works when plugged in, so you can't use it on the go without a power source nearby, which limits its portability.