OCOOPA Rechargeable Hand Warmer 10000mAh,Portable Electric Hand Heater,Up to 15 Hours,USB Battery Operated Handwarmer for Camping,Hiking,Hunting,Golf,Warm Tech Gifts,Halo H01

Used the product because I tried manual hand warmers for the first time and loved them but didn't want to spend $1 on each. Logistics: Comes with a charging cable and can charge by usb c or micro usb (like a playstation controller) 3 settings. Double tap to see current charge. When plugged in, shows charge indicators like flickering between 2 and 3 lights means currently 2/3 done charging, and 3 blue lights means fully charged. When on, level is a red light and double tap to see blue battery percentage briefly. Review: Very quality item. I've been using it for about a month now and keep it by my bedside and have used it while driving and while outdoors. It's super sturdy. If I press it as hard as I can in my hand, there's no way it will break. It also reliably heats. There's no thought if it not being "warm enough" The lowest setting is actually my most-used setting and alone is hot enough to warm me up. At the lowest setting, I could see this thing cranking out 10-15 hours easily. At the highest setting, I think moreso like 4-6 but honestly the highest setting is so hot that I can't see why you would really use it in foreseeable conditions. And it fits perfectly in one hand too. I wouldn't say this is a two-handed item in any way, but it heats so well that I usually warm up one hand then transfer to the other and don't worry about the first hand freezing back. Also, heats up very quickly and cools down very quickly. After turning it on, just wait 15 seconds. After turning it off, wait 10 seconds. Overall: Overall, one of my best purchases for 2020. Sturdy, great heat, looks good, and I just charge it after using it for like 6 hours usually. I was thinking I'd need two to heat both hands, but have changed my mind. One is plenty. This definitely beats 40 $1 hand warmers too.

We fly fish in Alaska every year and boy do these keep our hands warm. I have recommended to others at the lodge we go to.

Excellent product! Arrived promptly in about 4 days. I have hunted deer from a tree stand and have used many hand warmers during the last 25years. This is tops. I got 2 of the OC-HO1- 10,000mAH hand warmers(one for each hand) and put them to the test immediately because I need hand warmers that last very long because I sit in the tree from approx. 6:30am till 5:30pm-11 straight hours! The results are: on setting 1 it ran for15 hours, on setting 2 it ran for 12 hours, on setting 3 it ran for 8 hours, This is what I got. The warmers are great. If it doesnt get below 25. then setting 1 is ok for me. Setting 2 is noticeable warmer. Setting 3 is extremely warm. It is really too hot to hold in your bare hand. You must use a glove if you use setting 3. I sure wish they invented these back in the 80s. The Hot Hands are warm but are small and dont cover your whole hand and only last 8-9 hours. The Zippo ones I have are very warm and big enough for your hand but they are a PITA to get lit sometimes and if you lose the "vapor vacuum" while out hunting, which happens occasionally, your hands are gonna be cold the rest of the day. They also give off fumes from the lighter fluid. Not a good thing when deer hunting. I get busted enough without hand warmers!. So, in conclusion, this is a great buy. Setting 2 is perfect for me. Oh, and they do take 4-5 hours to recharge from totally discharged.

This hand warmer definitely can warm your hands, most of the time. The heat output is very, very inconsistent. Sometimes I've had it on high (with multiple power indicator lights lit, so not a dead battery) and barely got any heat - other times, low is plenty warm. This is in use indoors in a cold room in my house, so the conditions are not widely varying. Also, it will NOT charge with a good USB-C cable; it does charge using the USB-C port if I use it's USB-A to USB-C cable that shipped with it. This suggests (though I am no expert) that the product is not properly complying with USB-C specifications. Battery life is not great. I've had it refuse to heat when 2 of three lights illuminate in charger mode (I thought that meant 2/3 charged). Once I recharged it, it would heat again, so it's not broken, just inconsistent. Fours stars might seem generous - it may be, but the hand warmer DOES work, and it gets quite warm more often than not.

Very good last long heats very well and gets up to temperature fast and when an extreme cold if you put it on high, it still is very hot last a good 6 to 7 hours easy on low

I’ve had one of these for about a year now. I decided to getting a matching one. imagine that? I have two hands. These guys are great. And they get very hot, last a long time. (I don’t think I’ve ever recharged them from a dead battery) I rarely use it on high. No need to. Low and medium do the trick most of the time. They are a bit bulky, but worth the extra size and weight. If you are going to be out on the trail, skiing or going to winter outdoor sporting event. You will not regret having a pair of these in your pocket.

I bought a pair of these, and really like them. They are easy to charge and to use, and their heat ranges from WARM to HOT to VERY HOT. On the latter two settings, you really need the drawstring fabric bags around them to moderate their output, otherwise they're too hot to place against bare skin. I'd like to see them make the middle setting a little more moderate, so it goes from WARM to VERY WARM to HOT. But that's a niggling point. The important thing is they will truly warm your hands and make you more comfortable when you're out in the elements. I find that I can slip them inside my mittens and grasp them in there. I even sneak my thumbs out of the thumb holes and put them down inside the mittens as well, so I can keep all my digits warm together. When your hands and fingers are warm, it helps you feel warmer all over. I'm glad I got these!

This is the 3rd pair I have ordered . Perfect for the outdoorsman.