Hand Warmers/Power Bank 7800mAh, Rechargeable Hand Warmer, 7800mah Portable USB Hand Warmer/Power Bank 7800, Portable Battery Charger with LED Flashlight for Cold Winter

I purchased this 7800mAh hand warmer to replace my last 5200mAh hand warmer that I lost while I was hiking on the trails. The 5200mAh worked just fine but thought that 7800 mAh battery should provide a longer of using time. In fact, it can be used for a longer period of time than a smaller 5200 mAh but it’s not up to 6-8 hours as described. My experience was that there were about 4-5 hours of running time when set at “low” setting which I think it’s not too bad compared to 3-3-1/2 hours of 5200mAh. I gave it a 5-star based on that you spend about the same amount of money but can get something has a bigger battery capacity and also comes with a flashlight.BTW, the heat of the hand warmer was consistent and the light of the flashlight was quite bright.

I have a disability that makes me very sensitive to the cold. I needed to travel to Boston in November, so I gave these hand warmers a try. They are one of the best products I've purchased for any purpose, ever. I bought two and I'm glad I did. They actually get hot to the touch, and putting them in my jacket pockets kept me warm enough that my muscles didn't seize up like they usually do. Plus, they are USB device chargers AND have a built-in flashlight, so they're useful for emergency preparedness as well. Highly recommended!

It efficiently heats up. It charges effectively. It's easy to turn on and off. The LED is good. It has a great flashlight. It seems bulky. I'm trying it as a more environmentally friendly hand warmer option that the 'use once' charcoal throwaways, typically sold in an orange colored small plastic bag, containing a small white pouch of charcoal that lasts about 12 hours and then clogs up the landfill. So when it advertises "hand warmers" that's where my brain went. I was expecting something that was small enough to slide into the back of my glove. Think again. This product is great but is way too big to be used as a hand warmer in any active sense. Not sure what the manufacturers intended use of the product was but it isn't small enough to fit between glove and hand, let alone the zippered pouch some gloves have for hand warmers. For functionality and build quality it deserves at least a 4 out of 5, I simply love the idea, but as far as meeting the expectations of someone used to non-environmentally friendly warmers who was hoping to become more environmentally friendly, I cannot use the product as a hand warmer while doing any activity where I am holding anything else: ski /snowshoe/hiking poles, compass, water bottle, ice ax, avalanche transceiver, rope, or even snowballs. It would need to be sold with a roll of duct tape to enable the owner to be hands free, cos for it to work as a hand warmer it has to be held in the hand on the outside of a glove. If a product half this depth were available it might be what is needed, and could revolutionize the hand warming industry, making those environmentally costly throwaways redundant for ever. Loved the product except I can't use it for what it's advertised to be/do. My advice would be to design a smaller, effective device able to seriously take on the hand warmer market currently dominated by environmentally irresponsible manufacturers. Good luck. I will eagerly buy that product too.

I love this warmer. I spend a lot of time outside and in cold temps. Yesterday it was 18 degrees and I put this unit on low for 5 hours, it used minimal battery and kept very warm the entire time. I would definitely buy it again.

This heater puts out amazing heat, and it lasted about 8 hours on the low setting; however, it won't take a charge now. Not sure why but...the USB connection is very loose, I tried wiggling it but the lights won't come on. I'm willing to try another unit if Amazon will offer a replacement...the heat was that good!

I love this hand warmer, i live in North Dakota and I used this at work. It kept my hands warm. The light is bright and the charging seems to be working good. I would recommend this product.

There's a 98% chance this is the only real review that isn't staged... so listen up. It's a decent little hand warmer, kinda feels cheap but I am thoroughly pissed of that I was deceived into thinking there were two in the package... especially after I promised my father one of the two... shame on you dopes

Very happy to have this handwarmer as I run outside in the winter. While the rest of me gets warm running my hands always remain chilly and blue. I am bugged that the picture shows 2 handwarmers and for this price you get ONE. I don't see anywhere in the description where it says one hand warmer. Why would you sell them one at a time? At least make that part clear. I do intend to buy a second one but I'm irked. The only place I see where it's explained you get one is in the question and answer column.