This was quite the unexpected gift! My 80 year old mother is always looking out for her daughters. She bought a version of this for me several years ago. I stuck it in my trunk and forgot about it. A year ago my electric was out due to a storm for several hours and I was reminded this had a light on it. It had held a 75% charge for over a year and lit up my living room until power was restored. I was so pleased I bought several for my own daughters to have when their spouses are not available. The battery is such that it is easy to use. None of the girls have needed the air portion. All are excited about being to charge their phones or other electronics. This particular version gives up the ac outlet for the tire portion, but I can only say it is a really great purchase for any female!