I have been monitoring both mine (YC Excel) delivered March 2024 and my son's Yaris hybrid (2013). His battery fell below optimum in February after 2 years of owning the car. We had this replaced (Yuasa supplied and fitted by dealer) since then I have been monitoring both his car and the YC batterie...

We have had our YC Excel since late March. We don't do huge mileage and a lot of short journeys. Having read the Forums I had a CTEK plug fitted by the dealership before collection (just tucked under the back seat) - incidentally the cable has to be connected to the positive terminal and earthed els...