bmw 330e ev range

Hi I have a BMW 330e 2016 model ODO meter about 39,000 Km . And initially when high voltage battery is 100% charged it indicated around 25Km and now it gradually reduced to 17 Km . But still battery get 100% charged. And through out I have been using LOW charging rate which is advised to get...

I'd be interested to hear from other 330e owners about their experience with the "Save Battery" mode? On longer journeys I've tried switching modes once I've run out of electric - save battery to generate electric then switch to e drive or all electric if I'm near the end of a journey - but...