18.33 kWh/100 km includes charging losses.Something here doesn't add up.
18.33kWh/100km requires 129kWh of battery to go 707km (claimed One/extreme WLTP range).
129kWh gets you 440 miles (One/extreme WLTP)
113kWh gets you 383 miles (close to ultra WLTP?)
So, how big is the battery?
www.caranddriver.com
Thank you.18.33 kWh/100 km includes charging losses.
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.
Is that 113 usable? If it’s 113 total, then 105 kWh usable sounds about right. This would make usable size to be 93% of the total battery size.T
The specs document says the Ocean has a 113kw battery.
It is a tire comparison, not vehicle. It looks like it is rated A from A to C. The test is done at 80 km/h. The rating is dependent on the width of the tire. Keep in mind that the 69 dB is the sound from the tire measured externally so is not the noise level within the vehicle. Also, Fisker has a different tire in Europe than the U.S. so doesn't even apply to the tires for the U.S.Is 69 decibels good? Any comparisons to other vehicles? And wouldn't speed be important to know?
yeah, so maybe he's asking to compare against other tires levels, and not vehicle???It is a tire comparison, not vehicle.
Then refer to sentence 2 - It looks like it is rated A from A to C.yeah, so maybe he's asking to compare against other tires levels, and not vehicle???
It is a tire comparison, not vehicle. It looks like it is rated A from A to C. The test is done at 80 km/h. The rating is dependent on the width of the tire. Keep in mind that the 69 dB is the sound from the tire measured externally so is not the noise level within the vehicle. Also, Fisker has a different tire in Europe than the U.S. so doesn't even apply to the tires for the U.S.
I find this kind of an amusing thread, with so much discussion about the tires decibel level. Have to agree that yes, the ratings are A thru E, but the picture clearly ranged it A thru C and gave it a BOLD A rating, so in someone's book that's a top rating....It is A-E
The rating is defined by the European Commission, cp. Tyres
Welcome back!I find this kind of an amusing thread, with so much discussion about the tires decibel level. Have to agree that yes, the ratings are A thru E, but the picture clearly ranged it A thru C and gave it a BOLD A rating, so in someone's book that's a top rating....
Now then, about that 69 decibel level.... is there an actual spec somewhere that says that's outside the car??? I mean...who would care unless you're the Green Hornet and buy only silent series tires? I've never seen such a rating on what a car's tires noise puts out to the masses. Maybe that exists, but a decibel level for a given tire inside the vehicle, now that's a real spec someone could use when deciding on what tires to buy because some are certainly louder than others. And then no actual stated weighted measurement level is given.... @ A weighted or C weighted? That's a huge difference between the 2 because C weighted is WITH the bass included whereas A weighted is the LF (low frequency) filtered out for better overall measurements when determining harmful db levels in factories and such for workers long term exposure to factory noises.
Since road noise is mostly LF content, then if the measurement rating is very important if that rating was inside the car. If it was measured at A weighted readings then it would not give a good indication of a car's low frequency management and insulation. C weighted would be MUCH more useful.
If the 69 db measurement level was outside the car at speed, then one would have to determine how they made that measurement. Did someone hold out a mic and db meter outside the window on a stick? The wind noise could only be mitigated to a certain level and then what's left would have to be summed into the reading. Unless, the tire noise is somehow measured using a near silent dynomometer (or perhaps subtracting a known dyno db level)... really wondering how that measurement was made and what weighting.
I just want my frickin' ONE
If you are rating tyre (tire) noise, you can't do it from inside a vehicle as the noise from the tire will be very different inside a Honda compared to inside a Rolls Royce. Tire noise makes much more of a difference for EVs as there is no ICE drowning out the tire noise. Tire and wind are the two most prevalent noises for EVs.I find this kind of an amusing thread, with so much discussion about the tires decibel level. Have to agree that yes, the ratings are A thru E, but the picture clearly ranged it A thru C and gave it a BOLD A rating, so in someone's book that's a top rating....
Now then, about that 69 decibel level.... is there an actual spec somewhere that says that's outside the car??? I mean...who would care unless you're the Green Hornet and buy only silent series tires? I've never seen such a rating on what a car's tires noise puts out to the masses. Maybe that exists, but a decibel level for a given tire inside the vehicle, now that's a real spec someone could use when deciding on what tires to buy because some are certainly louder than others. And then no actual stated weighted measurement level is given.... @ A weighted or C weighted? That's a huge difference between the 2 because C weighted is WITH the bass included whereas A weighted is the LF (low frequency) filtered out for better overall measurements when determining harmful db levels in factories and such for workers long term exposure to factory noises.
Since road noise is mostly LF content, then if the measurement rating is very important if that rating was inside the car. If it was measured at A weighted readings then it would not give a good indication of a car's low frequency management and insulation. C weighted would be MUCH more useful.
If the 69 db measurement level was outside the car at speed, then one would have to determine how they made that measurement. Did someone hold out a mic and db meter outside the window on a stick? The wind noise could only be mitigated to a certain level and then what's left would have to be summed into the reading. Unless, the tire noise is somehow measured using a near silent dynomometer (or perhaps subtracting a known dyno db level)... really wondering how that measurement was made and what weighting.
I just want my frickin' ONE
www.tyrereviews.com
That, and a number of EVs emit artificial sound inside the vehicle so the driver can hear louder noises at higher speeds. This is, of course, a terrible idea, but car makers seem to think that cars should be noisy. Some cars let you choose what kind of noise the car will make. A few let you turn it off. The Ocean better be one that adds no noise or at least lets me turn it off.Tire and wind are the two most prevalent noises for EVs.
It's an issue of noise pollution and, though usually under the radar of the general public, is something that's been studied for decades. Basically, there are three sources of road noise - noise from auto propulsion systems, aerodynamic noise, and tire noise.Now then, about that 69 decibel level.... is there an actual spec somewhere that says that's outside the car??? I mean...who would care unless you're the Green Hornet and buy only silent series tires? I've never seen such a rating on what a car's tires noise puts out to the masses. Maybe that exists, but a decibel level for a given tire inside the vehicle, now that's a real spec someone could use when deciding on what tires to buy because some are certainly louder than others. And then no actual stated weighted measurement level is given.... @ A weighted or C weighted? That's a huge difference between the 2 because C weighted is WITH the bass included whereas A weighted is the LF (low frequency) filtered out for better overall measurements when determining harmful db levels in factories and such for workers long term exposure to factory noises.
Since road noise is mostly LF content, then if the measurement rating is very important if that rating was inside the car. If it was measured at A weighted readings then it would not give a good indication of a car's low frequency management and insulation. C weighted would be MUCH more useful.
