Battery Dead problems of the 2020 Jeep Wrangler

On 8/3/2020 with 300 miles battery is dead. On 8/13/2020 took to dealership and found nothing. 8/13 engine died at a signal and radio shuts down. Jeep is fine for 9 days without engine light on. 8/24 engine light returns on. 8/25 engine dies at a signal,and the radio shuts down. While on the freeway, battery lights, abs, and traction/stabilizer lights come on. The power steering goes out, and was hard to steer. The heater comes on via defrost vents blasting hot air and unable to turn off. Power acceleration goes out. Very scarey and dangerous. All lights are flashing on dash panel and the car is dies. Jeep towed to dealership. On 8/27 the technician tried to charge batteries for one and half hours on 1st attempt with no success. Technician said battery severely discharged and they could not retrieve information. On 8/31 after hours on a charge on the 2nd attempt, the batteries charge and technician cleared all codes technician drove it a couple of days (mileage is now 670) and because no codes returned "on", says the Jeep is fixed. On 9/3 we pick up the Jeep. The next day 9/4 new panel lights come on for the parksense system. The dash panel says to wipe clean. They are clean. The turn on/off button light continues to blink. Opened a case # 77098337 with Jeep care on 8/31 and have had no help and sent detailed documention and videos of the problems. The cause is definitely electrical with the batteries not being able to hold a charge. We are in fear of driving this Jeep and being stranded somewhere remote and have what happened to us happen again ending in an injury accident or death because of the loss of power to steering and acceleration. Extremely dangerous. We thought the Jeep was going to catch fire because of the heat coming out of the vents. Please help! I have videos but cannot upload here so took screenshots from the videos.