Coming out of a Drs office visit to my dismay I found my car wouldn’t start. Thankfully it was during the day and was able to call someone for a jumpstart. He showed up with your Autogen jump starter and it took only a few minutes and I was up and running. After thinking about the incident I realized this could happen in circumstances not so ideal like at night, bad weather, a cell phone dead area,etcSo I purchased 2 Autogens. 1 for my husband and 1 for myself. I consider this a safety factor purchase.