I am thinking of replacing my 2008 Rav with a 2016 Hybrid model however I am concerned with the Life Expectancy of the Battery I understand that Toyota are guaranteeing 2020 models for 10 years. This doesn't help if your budget  only stretches to an older model so I have no alternative now but change my plans and will probably go for a petrol version. I'm sure this  is going to be an issue with purchasing an older Hybrid for other buyers unless Toyota stretch the guarantee to older models!