Battery Dead problems of the 2018 Toyota RAV4

Constant battery failure on 2018 rav 4. Replaced Jan 2020 and again March 2021. All the lights lit up, bells & whistles then dead. Have called triple a so many times we are out of service unless upgrade plan. Dealer states car not driven enough (despite driven several times per week) but dealer would not state how much car should be driven to avoid battery failure issue. Also noted squirrel had built nest under the hood with insulation. Notified dealer of all & they replaced battery which was not included in warranty that is active. Vehicle was stationary. Concerned as others having same issue and some with battery explosion/fire. My mom is elderly and concerned about her being stranded out and about or worse fire hazard.

The vehicle use purchased in Dec '18. In Dec '19 the battery went dead and was replaced. Toyota said the battery had a bad cell. . In Apr '20 the battery went bad again and was replaced. Toyota said the wrong size battery was installed the last time. In Aug '20 the battery went bad again and was replaced, Toyota said it was because of a gps devise that was installed by the selling dealership and was never made aware to the buyer. In Dec '20 the battery went bad again and was replaced. This time Toyota said it was because the car was not being driven enough. The driving pattern has been the same with this vehicle since it was purchased. If that was the problem then why was it not a problem in the first year of ownership. Also it was not a problem with the previous vehicle that was used as a trade-in on this vehicle. There seems to be an obvious problem with the electrical system of the vehicle.