Are some of these duds? I've just opened the first pack, and after 30 mins, they're barely lukewarm.

Fortunately the last box my wife used had no issues with lasting for quite a long, I've bought these on several occasions in the past and don't remember my wife having any complaints. Hopefully its not an issue after this occasion.

No, they are one use articles. But you can stop the reaction by sealing the warmers airtight (simple plastic zip-bag for example). Without oxygen the warmers will cool down within minutes. Then you can take them out the next day and they will heat uo again. But once the total heating tim of 12 hours is spent they won't heat up again. Pleas note sealing them in a plastic bag is never 100% air tight. Therefore overall heating time may be less than the 12 hours in total. You can use them for example approx 4 hours on day then seal them airtight. Take them out the next day and they will heat uo again and last for several hours. After a few days this will not work anymore because the sealing is not 100% airtight and the warmer will be consumed. After use please put it in the normal household bin.

what is the shelf life of the packs

I don’t know the official answer but I’ve used them over a 3 year period

Whats the approximate maximum temperature the handwarmers get to?

Hello, the handwarmers reach an average temperature of approx. 40°C and can get a max. temperature of 50-60°C under certain circumstances. The real / actual temperature always depends on several factors, for example where they are used, how much oxygen is available for the reaction and so on... Best regards, THE HEAT COMPANY

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– Handwarmers - New: 30% Less Plastic - 12 Hours Warm Hands

Product ID: 490194749

Details

Brand
THE HEAT
Colour
10 Pairs
Material
Natural
Recommended uses for product
Hand Warmers
Size
standard size

👐compact 9x5 cm size fits gloves/pockets

🔥12 hours of continuous warmth

♻️30% less plastic packaging

₨788

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Description

🔥 Stay warm, stay ahead — warmth that works as hard as you do!

TRUSTED BY PROS - Official handwarmer supplier to Swiss Ski, Austria Ski Team, and Snowboard Germany—performance you can rely on.
ALL DAY HEAT POWER - Stay comfortably warm for a full 12 hours without any charging or boiling hassle.
PERFECT POCKET FIT - Slim 9x5 cm design slips effortlessly into gloves or jacket pockets for on-the-go warmth.
READY WHEN YOU ARE - Air-activated and single-use, these handwarmers are instantly ready—no prep needed, just open and feel the heat.
ECO FRIENDLY WARMTH - Enjoy cozy hands with 30% less plastic waste—warmth that cares for the planet.

THE HEAT COMPANY Handwarmers deliver 12 hours of natural, air-activated heat in a compact 9x5 cm size, now with 30% less plastic packaging. Trusted by elite winter sports teams, these single-use warmers are perfect for professionals on the move who demand reliable, eco-conscious warmth without any fuss.

Specifications

ASIN	B007U3LH98
Battery Charge Time	8 Hours
Battery Description	Single-use
Best Sellers Rank	30,880 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 101 in Hiking Hand Warmers
Brand Name	THE HEAT COMPANY
Colour	10 Pairs
Country Of Origin	China
Customer Reviews	4.6 4.6 out of 5 stars (1,208)
Global Trade Identification Number	09006746120010
Included Components	1 pair of hand warmers
Item Type Name	Hand Warmers
Item Weight	50 g
Manufacturer	THE HEAT COMPANY
Manufacturer Part Number	EWAL0554
Material Type	Natural ingredients
Model Number	4033574
Number of Items	10
Number of Packs	10
Power Source	Air Powered
Product Warranty	no Manufacturer Guarantee
Recommended Uses For Product	Hand Warmers
Reusability	Single Use
Size	standard size
Target Use Body Part	Hand
Unit Count	1.0 count
Upper Temperature Rating	40 Degrees Celsius

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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₨788

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Seychelles.

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