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Extremus

Extremus Opalm Quick Charge Electric Hand Warmer 10000mAh Rechargeable Battery, 15 Hours Sustained Warmth, 3 Second Quick Heat for Outdoor

    • Based on 36 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Nov 30
Order within 13 hours and 8 minutes
Available payment plans shown during checkout

Color: Black


Features

  • Long Lasting Warmth: Equipped with the worlds first replaceable 10,000mAh battery, Opalm Hand Warmers heat at low temperatures for up to 14 hours of use time with maximum energy output and minimal weight. Purchase another backup battery and use the electric warmer continuously for up to 28 hours.
  • Safe & Convenient Fast-Charge: With the latest QC 3.0 chipset and USB-C connection, the Opalm hand warmer reaches a full charge in just 3-4 hours with an 18W charger. In an emergency, you can use the warmer as a power bank to charge your phone up to 50% in just 30 minutes. The automatic shut-off feature activates after a full charge, guaranteeing safety and preserving battery life.
  • Innovative Temperature Adjustment: The worlds first push-pull gear mode allows you to adjust the settings without looking at the indicator light, so your hand can adjust the temperature from the warmth of your pocket. The hand heaters three settings are 95-107.5F/35-42C (low), 107.5-118.5F/42-48C (medium), and 118.5 - 130F/48-55C (high).
  • 3-Second Quick Heat: Our team developed the Opalm hand warmer to fulfill the needs of outdoor enthusiasts and avid travelers. The fast-heating feature offers instant relief in just 3 seconds. This design also provides heat therapy for individuals suffering from Arthritis and Reynauds.
  • Thoughtful and Practical Warm Gift: Winter is the season to give meaningful gifts to your loved ones. Built-to-last hand warmers will bring your love and warmth to their fingertips, even in the most frigid conditions.

Item Package Dimensions L x W x H: ‎5.31 x 3.43 x 1.97 inches


Package Weight: ‎0.32 Kilograms


Brand Name: ‎Extremus


Warranty Description: ‎2


Model Name: ‎AO-H2


Color: ‎Black


Material: ‎Metal


Suggested Users: ‎unisex-adult


Manufacturer: ‎Guangdong Aoyun Technology Co., Ltd.


Part Number: ‎AO-H2


Included Components: ‎Battery


Date First Available: October 21, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 30

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.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • This hand warmer/portable charger is so cool!
Color: Black
Review Image by Aidan
Review Image by Aidan
I had my doubts, but this thing really works! Of course it works fine as a portable charger with a quickcharge USB A port and an input USB C port. But the cool part is how it warms up and how quickly it does so! Within 30 seconds it will be hot on setting 3, and that top setting gets very hot. In cold weather, this is a life saver and you can even feel the heat through your gloves! The battery lasts pretty long too, as I had it on and off for hours and it still has about 60% battery left. It will also hold heat for a bit, so you can cycle between on and off every few minutes to preserve the battery. Even cooler, the battery is replaceable and removable! I thought removable batteries died in 2014, but this thing revived them! And while on the highest heat setting, I took the battery out and it was perfectly cool, so no worries about overheating the battery. I'm sure you could buy a replacement battery after years of use and battery degradation, so this is future-proofed too! 100/100! ... show more
Reviewed in the United States on November 28, 2022 by Aidan
    • Almost instantly hot, Impressed. Good product!
Color: Purple
At first glimpse, nice packaging and I like the fact that it doesn't seem like a cheap plastic unit, the purple/rose color is very nice and the ease of use is very simple. Comes with charging cable. It has 3 settings for temperature control about Low..95-107.5, Medium..107.5-118.5℉, and High..118.5 - 130 F. It really keeps you hands warm, I actually have it on a sore spot on my back as I am in Florida and it is not very cold here yet. It came almost full charge and did not take very long to get it to full charge! It has been on highest setting for about 30 minutes still shows full battery and it's still very hot. And, as a bonus feature, it is a portable charger which you can recharge you phone. This is a very cool product.. one word of caution.... the high setting does get very hot, but for those freezing hands or achy joints, I believe this will work very well. I will continue to use the product. Overall I would highly recommend this product! When I use up the battery with intermittent use, I will post an update on the review to see how long the battery actual lasted before having to recharge. Enjoy! ... show more
Reviewed in the United States on November 9, 2022 by Ghost Tracker
    • This actually works very well so far
Color: Black
My daughter has Reynauds Syndrome and loses circulation to her hands and toes in the winter. It’s important to get heat to them and keep them warm when it’s active. This is great for her she can use in in her hoody pocket at school also
Reviewed in the United States on January 5, 2023 by Adrienne
    • Better than expected
Color: Black
I didn't expect much from an electric handwarmer. They all have about 5W output per side (10W total) and the large ones (like this) hold about 35Wh of energy. In comparison my fuel powered warmers run at 15-20W each, and hold around 170Wh of chemical energy. The fuel powered warmers also weight half as much and cost 1/2 to 1/4 as much. However, that is not the whole story. The electric warmer is "on-demand". I can turn it on when needed, and it does not have to run all day. For sitting indoors at a desk this is an advantage. Also these electric warmers have been on sale for around twice the price of the fuel warmers. Not great, but less disparity, at least. Outdoors in the cold there is no comparison. The fuel warmers just put the electrics to shame. This particular electric warmer suffers from the same design flaw that many do. The heating panels are on the side, but the edges are not heated. That means that you can heat your finger-tips and palms, but not the main part of your fingers. Rolling the warmer around in the hands helps, but still one has to wonder: did the designer ever actually look at the contact pattern of a human hand? As for the removable battery: it would be ice if it were a commonly available battery. Let me swap out a fresh set ov 21700 cells, and hell yes! Make it yet another proprietary battery pack and I lose interest. Also the battery pack adds a bunch of needless bulk to the warmer. Overall these warmers work about as well as any other electric warmer. There are some QC issues. My first warmer has a misaligned led optic, so I can't tell if it is fully charged. The second one had the same problem, but not as bad. The third worked, but the switch on that one is bad. I tried to contact the manufacturer on the first issue, but radio silence. You are on your own. Overall I recommend this handwarmer if you can find it for $20 or less. ... show more
Reviewed in the United States on December 6, 2022 by gerG
    • Awesome portable hand warmer/ battery backup.
Color: Black
Awesome portable hand warmer/ battery backup. i have used this on the golf course to keep my hands warm between shots. i like it better than winter golf gloves. Lots of power for phone backup, etc. Very happy.
Reviewed in the United States on December 14, 2022 by Allan Y.
    • This thing gets HOT!
Color: Black
Review Image by Stephen
Review Image by Stephen
Review Image by Stephen
Review Image by Stephen
First off, it arrived quickly, it was very well packaged and was already fully charged. It came with a charging cable and a carry pouch. First thing I did was crank it to full power. I agree it gets to every bit of the 130 degrees that’s advertised and very quick at that. I also tried out the usb port to charge my phone and it also performed well. Overall this will be a great addition to my winter supplies! ... show more
Reviewed in the United States on November 23, 2022 by Stephen
    • Warm Hands + Charged Phone.. just what I needed
Color: Black
Perfect little hand warmer to keep around. Went to the range today and after resetting and fixing targets I almost had to call it a day with my neuropathy. Pulled this out of my bag and was ready to go shoot in 5 minutes
Reviewed in the United States on December 4, 2022 by Amazon Customer
    • Still new, but seems well built.
Color: Black
Haven’t had many chances to use this yet. Seems well built, and it warms up quickly and stays warm. Time will tell.
Reviewed in the United States on December 7, 2022 by Amazon Customer

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