Hazard Flashing Warning Light Unit problems of the 2007 Ford Focus

Without any indication of a low battery, the car began to lose electrical power while driving. At first, I was on my way to work when I noticed my radio stopped playing. Upon looking at my radio, I realized the lights were completely off, including the clock--which stays on even if I turn the radio off. I noticed I was very cold, and my defrost had stopped working. Thinking it was hopefully just a blown fuse, I continued on my way to work, driving cautiously. My car did sound like it was not shifting gears as much as it should have been. I made it to work fine, and even checked on it during my lunch hour--it started up fine, lights and everything was working, with no indicator lights illuminating on the dash. Thinking it was fine, I drove home that night with the intention of bringing it to the shop to check the battery over the weekend. While driving home (in the dark) that evening, I made it almost to my apartment. I noticed again that my radio suddenly stopped playing. I looked at the radio, at which point I saw the text display "low battery. " I began to notice everything dimming--the dashboard, interior lights, and even my headlights. I was close enough to get to my apartment ok. The next morning I had an appointment to get to the shop. After reading the other complaints of similar drivers of 2007 Ford Focuses having identical issues, I was nervous about driving to the shop. Not knowing if my car would suddenly die on me, and if I would be able to use my hazard lights, or turn signals to indicate to other drivers if my battery started to go again. Luckily my car made it the 3. 1 miles to the shop, before giving out. Same thing--no earlier indications that the battery was low, the power just starts shutting down. This is incredibly dangerous, and I was lucky that I read up on the issue and was only driving locally, and not on a highway.