The best time to go to Magic Mountain is in October, the last week they are open during the weekdays (the week of Halloween) on that Monday, Tuesday, or Wednesday.
You can replace the hybrid battery pack for $600â$2000. It will be more expensive to do it at the Toyota dealer, and the model of the car also affects price. I have had 3 Priuses in my family, and only had to replace one battery pack (200,000+ miles). I ordered a replacement battery pack from a rebuilder and had it shipped to my mechanic, who had no problems changing things out. The total cost was $1200, back in 2011.
But, Lexus claims the hybrid battery will last the life of the car and provides an eight-year/100,000-mile warranty to the owners. The cost of replacing the battery can run in the $2,500-$3,500 range, which includes installation.