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Is 75kWh Enough?

Discussion in 'Tech Talk' started by Bobby Garrity, Apr 8, 2017.

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Is 75kWh Enough For You?

  1. Wasn't planning on a battery that large anyway.

    18.3%
  2. Perfect!

    46.7%
  3. A little smaller than I would have hoped, but I'll be fine.

    27.5%
  4. It will be quite a sacrifice.

    5.8%
  5. Far too small. Cancelled/considering cancellation.

    1.7%
More threads by Bobby Garrity
  1. Bobby Garrity

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    I know that many of us intend to purchase the largest battery pack available on the 3, or at least the largest battery pack we could afford. However, I think nearly all of us expected that the largest battery pack offered would be greater than 75kWh, even after Elon confirmed that it would be less than 100kWh.

    Now that we know 75kWh will be the largest pack offered, I would like to know if anyone here finds this too small. Is this a deal breaker for anyone? Also, it would be helpful if you include in your post what range you expect the 3 to get from 75kWh.
     
  2. AEDennis

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    I have an 85 kWh S and travelled from Southern California to Maine and back... considering that the 3 is more efficient than the S, it's fine.

    I would expect a 75 kWh 3 to get 250 miles
     
  3. Michael Gatti

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    I expect the base model, whatever that battery size is, to have a slightly better range than a Bolt, because that is what it is competing against price wise. If they do manage to achieve that, then we could expect a range of 300 miles from the 75kwh battery. Bear in mind that the Model 3 should be a little more efficient than the S and X due to the lighter weight, the better aerodynamics and the 2170 batteries.
     
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    • Bobby Garrity

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      I wouldn't bet on the base 3 to have better range than the Bolt. Keep in mind that the Bolt has a 60kWh battery pack and the base 3 will have something less than 60kWh.
       
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      • MelindaV

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        and the Bolt has the aerodynamics of a toaster oven (.32 drag coefficient)
         
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        • Bobby Garrity

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          Now that I think about, there may actually be toaster ovens out there with a Cd of .32.
           
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          • MelindaV

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            for reference, a mid 1990s Ford Taurus is .32
            [​IMG]
            ;)
             
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            • Watts4me

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              I bet that .32 in 1990's was cutting edge. Lol
               
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              • garsh

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                Oh, I'll take that bet.
                 
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                • RickDeckard

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                  For me the expected range of the base model of around 215 miles is enough since I almost never drive beyond 300 km (and in the very rare instances when i would, i would have stop to go to the bathroom, stretch a bit and eat at a restaurant anyway)
                   
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                  • BigBri

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                    I mostly was planning on the bigger battery to future proof the car a bit and allow for degradation. 2170 being new and all we really won't know how the packs age but the S and X give us a pretty good indication they'll age very well. I didn't want to buy a battery that would get me to my destination today but 3 years down the road couldn't make it. I might be in a smaller subset but my car gets around 350 miles a tank and I maybe fillup every 3 weeks if that. It'd have almost 0 impact on my life to charge every 10 days instead of a fillup every 20.
                     
                  • Topher

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                    To be clear, he doesn't say BASE Model 3. The 75 kWh Model 3 will certainly beat the Bolt.

                    If Elon is intent on having the base Model 3 beat the Bolt, that shouldn't be too hard even staying within his constraints (under 60 kWh).

                    Thank you kindly.
                     
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                    • Guy Weathersby

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                      Other than a few short slighted people who are obsessed with numbers, I really don't think that people would pick the Bolt over the Model 3. The Bolt is not supporting by a Supercharger network and if you by the base version, full home recharging is recharging measured in days. So the Bolt will not be as good on the road or around town, if range is your main concern. Tesla batteries have a reputation for keeping about 90% of their capacity for years, GM's are an a less known quantity.

                      Plus remember that when Tesla said "pencils down", last summer it is increasingly clear that they meant it. So I don't think that they made any changes when the Bolt was announced. There may other reasons to pick the Bolt , such as if you need car before the Tesla is available, or that they are reportedly available at a discount, but no reasonable person would buy one just for range.
                       
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                      • Topher

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                        Not disagreeing with anything you said, but I expect adding a few cells to each module isn't a huge design exercise.

                        Thank you kindly.
                         
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                        • Michael Russo

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                          With all due respect, we've already exchanged some about how to interpret this specific tweet by Elon... I do believe it is Elon's intent to offer more range than the Bolt with the base Model ≡, not because they have to do it to be competitive to that fugly box on wheels, but because they can..!
                          I have faith... :D
                           
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                          • Randy

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                            I would guess that the battery tray for any capacity would be the same regardless. I have seen somewhere on you-tube that the smaller capacity battery packs on the S have blank or fake cells to act as spacers/fillers I imagine it wouldn't take too much to replace a few of those incomplete cells with active ones. Regardless if it pencils down or not ,I do not believe Elon would let the bolt's capacity trump his newest creation. Could be the reason we have not received any exact info on the battery size, waiting for the official EPA mileage estimates I'd bet.
                            Randy
                             
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                            • Martin Lacey

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                              It's worth noting that 75 kWh is the max capacity and not necessarily a purchasing option. Tesla in their recent blog post said "
                              Model S will also continue to be the longest-range vehicle we offer, capable of a landmark 335 miles on a single charge," Way back when, even before the reveal we were told the base model would be below 60 kWh. Since the Blot (deliberate Spelling mistake) came out EM has hinted at more than 238 mile range. Until we know the Miles/kWh figure we can only speculate. My guess is on one battery option under 60 kWh on the launch cars with increases coming once the backlog is caught up with. This will help the production ramp scale up faster, especially while GF1 is still being built and is nowhere near full capacity.

                              For the record I reckon 5 miles per kWh, but wouldn't know what the battery reserve would be to prevent premature degradation through depletion.
                               
                            • Topher

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                              Sorry, I didn't realize that you had closed discussion on the topic. You should probably give more indication, lock the thread or some such.

                              Thank you kindly.
                               
                            • Michael Russo

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                              Oh, no issues. It was most certainly in a different thread, and a few weeks ago... Don't think there was anything to close, I was just referring to it.
                              Time flies when we are having fun... waiting... ;)
                               
                            • Topher

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                              Then I am lost on why you would say 'with all due respect...'. If my opinion is welcome, why give the impression that somehow, I am going over covered and closed ground? And then why cover the same ground yourself?

                              Thank you kindly.
                               

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