Photo: electrek.co
The German automobile club ADAC has released the results of a large-scale study comparing the battery longevity of plug-in hybrid models across different brands. The research revealed that premium brands retain battery capacity significantly better, while budget models experience faster degradation.
In collaboration with the Austrian company AVILOO, experts analyzed over 28,500 battery health measurements collected over six years. The study found that the brand of the vehicle is a key factor in battery durability, according to UAmotors.
On average, most plug-in hybrids maintain more than 80% of their battery capacity after 200,000 kilometers. However, differences between manufacturers were notable. Mercedes-Benz models performed best, with batteries retaining almost full capacity even after high mileage. Mitsubishi showed faster early-stage capacity loss, which then slowed over time. BMW results varied depending on driving style and conditions, while Ford ranked among the worst for capacity retention. Volkswagen and Volvo were rated as average.
