OCOOPA Hand Warmers Rechargeable, 10000mAh Electric HandWarmer, 15hrs Hands Heater, Portable Charger, 3 Levels Heating, Perfect for Golf, Hunting, Camping Gifts, H01

Works well on the golf course and has plenty of heat to last for 18 holes.

Just gonna start off saying I’m so happy with this thing that I bought two more to give as Christmas presents to my dad and brother.I actually haven’t tried it on the medium or high settings yet as the low setting is very warm and it’s soooo nice to have it last sooo long! I used it almost the entire day at the theme park without fail. I’ve used it at college football games and parades since as well! The charge seems to last at least 5/6 hours on low (and didn’t show any signs of dying soon). I haven’t tried to power bank mode and I haven’t gotten it to work with the quick charge. But I leave it on the charger the day after using it and it’s ready to go a few hours later.My only caveats are that only the front and back on the black design get warm (not the sides or the white plastic, which is probably a good thing haha) and once it reaches temperature, it starts turning the heat on and off and fluctuating to maintain that temperature. It’s not all that big of a deal though and I wouldn’t say it has hampered my use of it at all.

Cold hands due to circulation issues or just too much cold exposure? This seems to be an excellent answer. Three settings; all of which provide substantial warmth. My new one seems to hold charge for at least 10 hours of use. Haven't tried higher settings, yet. Relatively quick charge, and good battery life. Easy to hold and affective answer to a nagging problem that can have significant consequences. I have several hand warmers; this is the best one so far.

The media could not be loaded.  I wasn’t paid to write this review and neither was I given a free product in exchange for a review like others here. I spent my own hard earned money purchasing two hand warmers and here is an unbiased and honest review.There are 3 settings, low, medium and high. I actually tested and timed the devices to see how long they lasted. The low setting was warm and adequate for the bare hands. The first warmer (with a loose power button) lasted 18 hours before the device turned itself off. The second warmer (with a firmer power button) lasted 19 hours. After 15 to 16 hours, the temperature dropped and wasn’t nearly as hot as before, but it was still sufficiently warm.The medium setting was very hot and can be uncomfortable to hold for more than 5 to 10 seconds in my hands. You can wear ultra thin gloves or mittens to shield your hands if it’s too hot for you. Alternatively, you can simply hold onto it with your bare hands, let go when it gets too hot, and then repeat the procedure. This routine worked for me. The first warmer lasted approximately 15.5 hours while the second lasted about 16 hours before the battery died. The temperature did drop somewhat towards the end of the battery life, but it remained useable.The high setting was scalding hot. Unless you have thick skin like an armadillo, I strongly suggest wearing light thin gloves or mittens to protect yourself. The first warmer lasted 10 hours while the second lasted 11 hours. Surprisingly, it remained mostly toasty until the battery died.How long does it take to charge the battery? Using an iPad power adaptor and the included micro USB wire, the first hand warmer took 4.5 hours to fully charge. The second one took 5 hours to fully charge. So before you go to bed, charge it up for the next day.I’ve read other reviews here that said the battery died within 4 hours and that this product is cheap Chinese goods. I bought two hand warmers and tested them side by side and my testing proved otherwise. My guess is that some people may have received a device with a defective battery and should try for an exchange. The description says the internal battery is a Tesla battery and it might be true due to its longevity. The battery may be a 21700 cell. Perhaps someone here can open one up to find out.Here are some suggestions to the manufacturer for a second iteration of this model. First, they should fix the power button. On some devices, the button is loose and rattles when you shake the hand warmer. It can be annoying. This is where quality control is needed. Second, the rubber lining that forms the grip of the device should be firmer and not stretch as much. I suggest a stronger higher temperature rubber; perhaps something that can withstand the high temperatures under the hood of a car. As of now, I can see that someday, the lining will break through wear and tear. Third, like some reviewers have pointed out, they should make it waterproof or at least water resistant. That would make taking this hand warmer out in the elements more handy (pun not intended). This is why I took one star off.Final thoughts: This is a fantastic device. The run time outlasted what was advertised and kept me warm the entire day. This is ideal for outdoors, waiting for a parade, going skiing, watching a baseball or football game, etc… If you get a defective device with poor battery life, don’t be afraid to get it exchanged. I highly recommend these hand warmers. If you are on the fence, don’t wait. Just. Get. It.

This little beast works great. The battery life is decent enough to use it for a few days, considering how often I use it. I typically use the lowest temperature setting, occassionally the middle temp, but I have had no problems. I use this warmer everywhere I go. I even use it at work to get my fingers warmed up for the shift. I use this about 20-30 mins a day (on lowest temp) and it lasts me about 3 days or so before I recharge it. Been using it for about 3 weeks and I love it. For temperature below 45°, I would consider using middle or high temp setting. I also want to add that I appreciate that its double sided. This is perfect for me because my car heater is out of commission. One hand on the wheel and the other is cooking on this double-sided, George Foreman grill of a hand warmer. Nice and toasty.

Love these. Ty way work great.

My husband suffers from Reynauds and when he walks is cool or cold weather, even with heavy gloves he loses circulation in his hands. This handy gadget works so well he can often walk with NO gloves and maintain warm hands. Easy to charge and lasts a long time. Great item,

Purchased these for in the mountains. They work well.

After reading god reviews all this okoopa 1, 000 milliamp hand warmer and phone charger I decided to order. It came beautifully packaged with the charging cable and on time. I read the instructions and charged it up overnight. The next day was sort of cold so I put on my coat and decided to take the dog for a walk and try it out. I was very impressed with the speed on it warming up I just had it at first on the low setting and the outside temperature was minus 15° c and I had on a pair of minutes so that I could keep the hand warmer in the palm of my hand. It worked very well is very comfortable to hold and at that temperature my fingers and hand will kept very warm. I am elderly and my fingertips get very cold in the winter no matter what gloves or mitts I wear I guess it's a circulation problem. So on first impression and tryout I love them I bought two and found that they work as advertised. Of course I have not had them very long so I can't comment on battery life yet or battery life in the long run. I will update this review after a season of using them. Next I decided to charge up my phone to see how good it goes there. It comes with a nice little charging cable which has a type c and that fits my phone so I didn't have to use my long charging cable that I normally use. The same cable also is used to charge the hand warmer which is a pretty good feature. I did try inside the house the other two levels of heat and found that the medium and the high get fairly warm especially the high setting which I would not use unless probably I was trying to use it without gloves because I think it gets too hot to be used inside a glove and on your bare skin. It also comes with a wrist strap which I find is pretty handy so that if you're working outside without your gloves on with something and you need to let it go you don't have to put it down you just let it go and it hangs from your wrist saves you from searching around for it when you need it. So I would say yeah it's a pretty good purchase so far and fits my needs perfectly has lots of power at 10,000 milliwatts and it did charge my phone to 100% and when I plugged it in to recharge found that it had only used about a third of its reserve battery power. So it is nice to know that it would charge my phone even after I had used it on the low setting for a couple of hours if I needed to. Will update when I have used it for a few months and let you know how I made out.

Wish that this hand warmer holder a charge longer, it is visually pretty

Saskatchewan winters are cold and it stays cold for 6 months. I carry it in my pocket for shoveling snow, walking the dog and warming my hands when they ache during the day. Wish there was a warmer for my toes, being old has its downsides but technology helps in many ways.

Schon beim Auspacken kam ein Gefühl des Vertrauens auf!Mit dabei waren Ladekabel, Handschlaufe und ein Stoffbeutel. Selbst die Kartonschachtel lädt zur Wiederverwendung ein.Die Bedienung ist selbsterklärend, die Leuchtmelder zeigen zuverlässig den Gerätestatus an.Nach dem Einschalten erwärmen sich die Heizelemente sofort – kein lästiges Warten erforderlich.Ich habe in 2024 die Handwärmer bei kühlen Temperaturen im Wald testen können und bin zufrieden.Was können diese Geräte nun wirklich?Ergebnis meiner Tests, Werte bei Raumtemperatur um die 20°C:Die Angaben sind Mittelwerte aus mehreren Messreihen, natürlich nicht unter kalibrierten Laborbedingungen, aber als Entscheidungshilfe für einen Kauf bestimmt hilfreich.Heizdauer Stufe 1: ca. 10 - 16 hHeizdauer Stufe 2: ca. 9 - 13 hHeizdauer Stufe 3: ca. 9 hOberflächentemperatur Stufe 1: 39°C - 40°COberflächentemperatur Stufe 2: 45°C - 48°COberflächentemperatur Stufe 3: 52°C - 55°CLadezeit 2 Handwärmer an einem Ladegerät (wie auf dem Foto) 7 - 15 hLadezeit je Handwärmer mit je einem eigenen Ladegerät 4,5 - 5,0 hMit einem starken Ladegerät sind die Geräte also fix wieder aufgeladen.Fazit: Für 32,99 EUR war das eine gute Entscheidung und ist mit der in 2023 angebotenen Discounterware keinesfalls vergleichbar.

I use these throughout the winter. They heat my hands in a couple of minutes after eg tying my kids ice skates. My hands easily become cold