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The specs document says the Ocean has a 113kw battery.This is 3.4 miles per kWh. The ID.4 is EPA rated for 3.2 miles per kWh (245 miles range with 77 kWh usable battery).
I’m currently getting in the ID.4 about 3.6 miles per kWh in city driving (no highways) at 75-80 F ambient temperature.
To get 350 miles, the battery on the Ocean would have to be a minimum of 103 kWh. So, the 105 kWh rumor may be correct. However, with this sort of efficiency, the efficiency at 70 mph average speed will be no more than 3.2 miles per kWh, which would be 336 miles in the summer. At 75 mph average speed, the efficiency will be 3.1 mile per kWh or 325 miles. The Ocean may be able to get 3.8 miles per kWh in the city at 75-80 F, which with 105 kWh battery translates to 400 miles of range.
I’m basing this on the shape and the EPA rated range of the ID.4 as well as my personal observation on the ID.4 efficiency at various highway speeds. The shape and the efficiency of the Ocean are not so different from those of the ID.4. Therefore, I used 0.2 miles per kWh butter efficiency of the Ocean than that of the ID.4.
