I was surprised by the reviews of the buyers, who for some reason did not fit the product, and they are like: "Well, Okay, I will use it as a flashlight" ! Tin! Buy a device for that kind of money and . use a flashlight. Damn, I'm clearly missing something :-) I have a lot of Akum sitting down in cold weather (it reaches 10 units, and maybe even more discharged, depending on the degree), and I'm in the Hong Kong Region, not in Siberia))) Catching a sharpener every time for "lighting up" is not an option: when I wake up, all the cars from the yard are already leaving))) The device came with a charge of 75%, at this indicator I cheered up my bibika 7 times. Bibika with a volume of 2 liters (gasoline). Then I charged it to 100%. I use it with great pleasure. I didn’t use it as a Power-Bank, I don’t know how it works in this function. Well, and a flashlight, of course, excellent (it was a joke for those in the tank). Although the flashlight included, honestly, to make sure the veracity of the previous speakers. All good!