Alternator/generator/regulator problems of the 2005 Kia Motor Sorento

My car has broken down 3 times in the last month. I have a 2005 kia Sorento with 115,000 miles on it. Ever since I bought my car, it has continually had electrical issues such as replacement of the headlights every few months. I have just dealt with it and learned how to replace them myself. One month ago though, my car broke down and I had it towed to my local mechanic. He said it was the alternator and went ahead and replaced it. Everything was running smooth when I drove it away but then 2 weeks later, I broke down again (same symptoms occurred from when I broke down the first time - brake & battery light blinks and then the airbag light comes on and boom, no power). Brought it to the same mechanic and this time it was the battery that needed replaced so he went ahead and replaced it. Just yesterday, 2 weeks after the battery issue, my car broke down again with the same symptoms occurring. I'm still waiting on it to be diagnosed but there is no other explanation than for it to be an electrical issue. Suggestions?.

Truck has a manufacturer defect (among many) as stated in service bulletins 2004-2014 that causes alternator radio frequencies to interference with transmission signaling thus shutting off or interrupting shift signaling due to inadequate shielding of transmission to tcm cable. This causes the truck to cut out between 3rd and 4th gear consistently when ascending or descending steep mountain passes at high altitude. As there was no advance warning of failure of shift kit to downshift, brakes had to be used on icy roads to slow an underpowered/overweighted truck. This is a very dangerous issue requiring expert driving skills to navigate and should have been addressed, but was not, by Kia Motors as a refund of purchase price and recall of trucks. The files regarding this problem and other problems with this vehicle are so vast they would crash your system. I have them if needed and can provide hard copies as the stack is about 3 inches deep and spans 11 years. I have 2 key factors that are also factors here. !. I am the daughter of a race car driver and skilled at navigating car issues. 2. I have been very ill for a decade and unable to work so have been caught in the refusal of kia to address the issues with this vehicle as I am unable to sell the car. I would feel it unconscionable to pass these issues on to another less capable driver. Needless to say it has been enormous stress to own this defective car and stress to try to get Kia Motors to step up to the responsibility of their warranties, and customer satisfaction guarantees in spite of the problems being apparent almost from point of sale.