Hand Warmer Rechargeable, Power Bank 10000mAh, Electronic USB Pocket Heater, Portable Reusable Heat Therapy Warmer, Best Winter Gifts for Women Men, Outdoor Sports Home Office Usage

This hand warmer is brilliant.My wife often complains of cold hands. We have tried the liquid hand warmers of various types where you pop a disk in the gel and they get warm for a time. Of course, worth those you cannot control the temperature and they only last a couple of hours. We have always had trouble trying to boil them in a pan of water to reset them too. Overall, we found them to be rubbish.This electronic warmer is such a contrast. Turn it on and it is warm within a few seconds. You can control the temperature you want rather than being at the mercy of a chemical reaction. The device can cover quite a range of temperatures but for warming your hands without burning them we find 45 degrees is more than enough. At that setting the device can stay warm for over 8 hours easily. You are not left to guess what setting you are on as the display states the set temperature clearly. You can adjust the temperature in one degree increments up to something like 65 degrees. I can’t quite imagine when you would want that as it is starting to get uncomfortable to hold. You won’t change the temperature or turn it on / off by accident either. The buttons are on the corners and flush mounted. You must deliberately press the button so it is slightly recessed to operate it. Easy to do deliberately but not likely to happen by pressing against other things.The shape and size of the device is good. It fits comfortably in the palm of your hand or is easily clasped between two hands. It has a decent flat area so it won’t roll away when put on a surface. It is not a bulky or awkward shape to get in the way when kept in your pocket. Other electronic had warmers I have seen have weird shapes that would not be anywhere near as practical as this one.Once flat it is really easy to reset, or in this case recharge, the device. When charging the display counts up the percentage charge. It only takes a couple of hours to reach full charge again so easily charge over night to be ready to go again the next day. Uses a USB C connector to charge this device.We haven’t needed to try it yet, but this can also function as a power bank and charge any other device like phones, tablets, earphones etc. It has a standard USB port on it for outgoing charge. So all you need is a lead for the other device.Very happy with this purchase. Our friends tried it and were going to promptly buy one for themselves.

I like the overall finish of the product, its versatility as a power bank to enable emergency phone charge and ease of recharge. I will look forward to using it on cold evenings doing practical astronomy outside. It seems to be great value for money

This was a Christmas gift as I always feel cold, one of the first Christmas gifts that I have used and used and used. Really does warm me up on the coldest of days.

Got these for my mum because we just do not handle the cold well, she's been absolutely LOVING this for her commute to work, waiting out for a bus in the cold wind has been a lot easier with warm hands. It was a little difficult trying to figure out how it worked, with regards to temperature and controlling it, plus she entirely overlooks the power bank aspect of this, but I can see that being extremely useful to some.

Best feature is being able to set the exact temp that you want it to have.

First impressions of this were good, it’s lightweight and fits nicely in my hand. It’s easy to control as it only has couple of buttons, just switch it on and select the temperature you want and stays warm for ages. It’s been great to have on cold days when I’m having to stand in a queue at the school drop off or on my commute to work.It’s also handy that it’s multi-functional and can charge phones too so I don’t have to take my separate power bank when commuting too.Overall, I’m really impressed with this device, I take it out with me all the time and it’s really helped keep me warm and the cold mornings and evenings not feel quite so bad!

With the cold snap hitting I needed something to keep my fingers moving when working from home. This does the job nicely. After turning it on, it gives notable warmth within a few seconds, and takes roughly 2-3 mins to get to full heat. Both sides heat up evenly with no notable hot/cool patches, and it fits nicely in my palm. Turning on/off and checking the remaining battery is easy, and it gets back to a normal temperature after being turned off surprisingly quickly - within a minute or so.Unfortunately, I don’t really have any way to confirm whether X°C on the display matches an outputted heat of the same amount, but there is definitely a notable difference between the top and bottom of the range. I usually find that the low end of the range is more than sufficient.Battery life seems in line with estimates - after just under 2h of use on 40°C I have lost ~15% battery. This would be consistent with a claimed battery life of 12h total. I worry a little about the longevity of the battery - heat is terrible for battery health. Given that this is a problem across the product category, though, I don’t feel it’s fair to penalise this specific product. Just make absolutely sure you never charge it while it’s on.Edit: I'm pleased (if slighlty embarrased) to report the thermal safety throttle works as expected, too. While trying to do a full 100-0 timed test for how long it lasted, I got distracted and forgot about it overnight. To my horror, i found in the morning that it had fallen between two sofa cushions while still turned on. When i fished it out, the cushions were quite warm but the hand warmer was giving off almost no heat. It automatically started giving off heat again immediately after being removed. Impressed, and quite grateful, for the safety cut off for saving my skin.

Bought for playing golf but battery won’t last for full 18 holes