Battery Dead problems of the 2008 Kia Motor Sportage

This will be 1 of 3 part statement. . . About a week ago (give or take a few days), a couple of my mother's 2008 kia Sportage's dash lights came on. The abs light, the esc light, and I think one other (possibly the traction control light but mind you this is not my car and I am not that familiar with her dash). She was told that there was a recall for a part that was causing one of the lights to come on (I believe the esc light). She took the car to get the part replaced, however, the lights did not go off. I have wheel hubs on my SUV crossover and I told her that when my wheel bearing/sensor starts going bad that is when my light comes on. Well a couple days later, her driver side wheel bearing started to roar, so we figured that the abs light was on due to that. She took it back to the kia dealership shop and they replaced the bearing and although the ride was quieter due to the new bearing replacement, the abs light and other lights did not go off. The mechanic told her that she does not have a wheel hub with sensor and bearing in the hub but that all of her parts were separate. He said that the light may be on due the sensor may have debris from the wheel bearing going bad or possibly the sensor is going bad itself. I planned on pulling and cleaning the sensor for her in the upcoming weekend. Well before the weekend, she went shopping at the grocery store and when she came out, the vehicle would not start. The battery was dead. We call a tow truck driver who came and gave it a quick jump and said she must have left her lights on. She drove home, pulled in driveway and I told her to leave it run a bit to charge the battery back up. She did so and then after about 10 minutes, shut it off and immediately started it again to ensure the battery was charged. Later that day, it would not start again. . . Battery dead again. (continued in next post) 2 of 3. . .

This is part 2 of 3. . . We got a new battery installed at advanced auto. Car ran fine. The next morning , she started the car and then went into the house. My niece was there and said she heard a pop and look outside to see the car on fire. The whole front end including the passenger compartment was burnt to a crisp. I believe what happened was a faulty part in the abs (causing the light to come on) was shorting or something and that kept draining the battery. With the battery low, the battery would die before enough heat could build up, however, with the new battery, it could continue to pull power and heat up whatever faulty part was shorting out and then got hot enough to blow and cause fire. (continued in next post) 3 of 3. . .