Hey, Whereitis -- you can expect a drop of e-range about 1/3 in winter, if your experience is anything like mine. My i3 is a '17, with the 94Ah battery. It reports over 140-mile potential e-range during summer heat (and four years ago it was 155), and drops to under 100 in winter (which used to be about 125). To reinforce my optimism, I only check range with heat and A/C off!