Do they stay warm the full 18 hours (assuming 32 deg F ambient)? If not, how long?

I've used them for years and have always found them to work at least 12+ hours. Primary use has been in my sleeping bag when it's better 30°-40°F. Definitely a good buy in my opinion.

What is the typical expiration date? I bought this in January 2013.

The ones that I bought in April 2013 have an expiration date printed on them of Nov. of 2017. If you look at the description of the 'Hothands 40 Count' here on Amazon, it says "individually sealed in airtight packages to guarantee a shelf life of six years." I don't know personally how true that would be, because I use them all within months of getting them, but you could go to the Hothands website (Hothands.com) and see if they have any more info.. Hope this helps!

ASIN	B0007ZF4Q8
Battery Description	disposable
Battery description	disposable
Best Sellers Rank	#20,994 in Sporting Goods ( See Top 100 in Sporting Goods ) #30 in Disposable Hand Warmers
Brand	HotHands
Brand Name	HotHands
Color	orenge
Colour	orenge
Customer Reviews	4.8 out of 5 stars 17,880 Reviews
EU Spare Part Availability Duration	18 Hours
Global Trade Identification Number	00094733152433
Included Components	40 Super Warmers
Item Type Name	Hothands
Item Weight	4.7 Pounds
Lower Temperature Rating	57 Degrees Celsius
Manufacturer	HotHands
Material	Polyester
Material Type	Polyester
Recommended Uses For Product	Hiking, Skiing, Hunting, Fishing, Working in Cold Conditions
Recommended uses for product	Hiking, Skiing, Hunting, Fishing, Working in Cold Conditions
Reusability	Single Use
Size	40 Pack
UPC	094733152433
Unit Count	40.0 Count
Upper Temperature Rating	160 Degrees Fahrenheit

HotHands Body & Hand Super Warmers - Long Lasting Safe Natural Odorless Air Activated - Up to 18 Hours of Heat - 40 Individual

Details

Description

Specifications

Reviews

Common Questions