Considering a 2019 Toyota Avalon Hybrid

I am interested in purchasing a 2019 Toyota Avalon. Have found information on maintenance costs for first 5 years and battery warranty… Since we usually keep a car for 10 yrs. or around 120,000 miles I would like to know more information on replacement battery costs (I understand that costs should come down as as technology advances.), isssues with hybrids that I don’t even know to ask about, and anything else I should be asking the dealer.

Ask the dealer about battery replacement cost but the hybrid batteries last beyond 100K miles and 10 years.

Thanks-I will do both.