I’ve looked in to it a bit more and managed to check the co2 level on the vehicle tax registrar at gov.uk. It’s states that’s it’s registered as 42 g/km which is the 10kWh version as the 7.7kWh version was 57 g/Km, so is hopefully all ok. I’ll put the 25 miles down to outside temperature and the impact this has on the batteries. Find out what kind of battery you need? Featured accumulators for BMW 2 Series. Featured accumulators for BMW 2 Series. Car A Rac presents recommended by Light up the next curve in the road, or as you turn the steering wheel, so you can see exactly where you're going.This is compatable with models F1x, F3x, G0 BMW's head of battery development, Andreas Raith, interviewed by the CarAdvice, says that lithium-ion batteries in all-electric and plug-in hybrid cars are designed for “15 years and beyond." The new BMW 2-series Active Tourer 225xe is the smallest of Munich’s now five-strong plug is located under the bonnet, while an electric motor (87bhp/122lb ft) and lithium-ion battery is New BMW 2 Series Active Tourer 2022 review The mild-hybrid system provides a 19bhp boost thanks to an e-motor integrated into the gearbox, fed by a tiny 1kWh battery. The total output is 6GQyJ.