Walmart complaint: Battery Installed Incorrectly

I am writing this memorandum on behalf of my mother’s vehicle. On 05 January 2022 my mother went to Wal-Mart’s automotive shop to purchase a battery. The battery was installed into her vehicle, started and driven out to a parking stall. After purchasing the battery once she started driving the vehicle she noticed smoke coming out of the hood as she drove down the street. She pulled into Burger King to get her something for lunch and the vehicle cut off on her, while she was in the drive-thru. She contacts my sister, Candice Chalmers, and asked her to come and assist her with the vehicle. She did not contact me because I am currently having medical issues and wasn’t able to assist her. Once Candice arrived she noticed my mother standing outside her vehicle having a panic attack (she was diagnosed). She attempted to calm her down and asked her what was going on, “my mother stated that she did not know why her vehicle did not start. She noticed that there were many individuals arriving at the drive-thru and asked if they could wait a few minutes so that she can try and maneuver my mom’s vehicle out of the way. While that individual was putting their vehicle into reverse, my sister thought of the same thing. She thought that if she could get the vehicle into reverse would she be able to roll it out of the drive-thru. Once the individual moved, my sister placed my mother’s car in reverse and was able to roll it back out of the drive-thru and she parked it into the Shell gas station which was next to Burger King. She then attempted to “jump” the vehicle because they thought that the battery needed to charge because she has just purchased maybe she needed to allow it to run for a few minutes, but when she attempted to place the cables on the vehicle, she noticed sparkles coming out from the connection as soon as she connected the cables the battery destroyed the Engine Control Unit (ECU). He also stated that he acid inside the battery will also react and gas foams may arise from the battery and even though the battery was purchased new this reaction will lead to the battery being completely dead.