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  1. W

    DCFC's come to Interstate-5... finally!

    Oh yes, there is worse. Not from personal experience, mind you. How about an overnight at a campground with 120V charging?
  2. W

    Drive range questions

    The motor is 3 phase, and is driven by 3 inverters, which are controlled in 6 logical phases, and is computer controlled. The computer will energize phases, one at a time, to make the car move. If the computer energizes 1,2,3,4,5,6,1,2,3,4,5,6,... the car goes forwards. If the computer energizes...
  3. W

    Battery Charge Capacity

    The mileage estimate is a Guess-O-Meter, a phrase that long predates EVs, but applies to any range estimate on any EV or ICE. The GOM uses past history to predict the future. Things that can make the GOM drop include; Driving faster. Faster speed limits, less traffic, different times of day...
  4. W

    BoBattery failure - How good is the warranty going to be?

    There are academic papers published recently on how to improve SoC estimateion. This isn't a solved subject. Battery chemistry isn't simple. The temperature you get is the case temperature. The temperature you need is the junction or electrode temperature. The two are only the same if the...
  5. W

    So are we all going to end up buying our cars after our leases are up?

    Prefer? Sure. But I'd like to car to have navigation, even if somewhat out of date and less useful than the phone. The reason is range estimation. The car could, and I'm aware of none that do today, use the route to estimate future energy use and thus range.
  6. W

    Daily Driving...125-150 per day

    Also see: http://www.mychevybolt.com/forum/viewtopic.php?f=3&t=8404#p32952 http://www.mychevybolt.com/forum/viewtopic.php?f=12&t=8079#p31221 Worst case is when everything that can go wrong does. There is a large chance that all would go very well. There are forty thousand or so Bolts, and a...
  7. W

    Daily Driving...125-150 per day

    I'm an engineer, and tend to try to look at the worst reasonable case. Sparke is likely correct, but I'd like to give a worst case sort of opinion. Sparke is exactly correct on computer and radio energy useage. My laptop draws 45W maximum. The car has 60,000 kWh. So, ignoring losses, I could...
  8. W

    Problem: Full charge capacity dropping

    There have been other electric cars with capacity loss like this. There are several possible issues. Getting the dealer to troubleshoot this correctly might be the biggest issue. What you can do to diagnose the problem: Run the car as close to empty as is reasonable. Plug into a charging...
  9. W

    2017 Bolt 8 vs 12 amp charge

    The 12 Amp setting will charge faster, however remember that 120V charging isn't very fast. Both will charge the battery to the same level. If you have a quality outlet with nothing else on the circuit, and you have never popped the breaker while charging, you can use the 12 Amp setting. When...
  10. W

    Trying to put gas in a Tesla model S

    I've pulled up to a pump in my LEAF about once a year to get a half gallon of gasoline for the pressure washer. Nobody has commented, at least yet.
  11. W

    Charge: As soon as possible, or as late as possible?

    Tires have reduced rolling resistance as they wear. Even if replaced with the exact same tire, a slight drop in range should be expected with new tires.
  12. W

    Charge: As soon as possible, or as late as possible?

    More importantly, there are differences in the chemistry of cells, and Battery University sometime glosses over that. Too early to determine which measures are best for batteries from experience in the Bolt. It is hard to measure capacity much closer than 5%. As reported losses are (as far as I...
  13. W

    Charge: As soon as possible, or as late as possible?

    As the regeneration is a very small cycle in town, usually less than 1% it doesn't seem to have a large impact on life. EVs driven in the mountains, with large and prolonged regeneration do seem to have less battery life. In general, a small cycle near the midpoint would give the best total...
  14. W

    Phaseout of Federal tax credit for GM

    More like $150 per kWh. http://www.mychevybolt.com/forum/viewtopic.php?f=11&t=155#p660 Tesla is claiming under $100 per kWh. Gasoline costs vary a lot. Electric costs don't from year to year, but can be rather different in different places. Assumption is national average. Yes, and this will...
  15. W

    Phaseout of Federal tax credit for GM

    Plug in hybrids were a reasonable design choice in 2010. Batteries were far more expensive, and getting the most common commuting and other shorter trips on electric was a win. If gasoline price rose a bit, the Volt might have been a real winner. As it was, it was a gateway EV for a lot of...
  16. W

    Phaseout of Federal tax credit for GM

    https://insideevs.com/top-6-automakers-200000-federal-tax-credit-limit/ So the phaseout starts. Full Federal Tax Credit of $7,500 (as far as I understand) continues to 1 April 2019, then reduces to $3,750 until 1 October 2019, then reduces to $1,875 until 1 April 2020.
  17. W

    Chevy Bolt MyChevy app

    https://insideevs.com/mychevy-app-reveals-bolt-ev-details/ Interesting, if you have not seen.
  18. W

    Rumors of adaptive cruise control? And more?

    Source please. https://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries Table 2.
  19. W

    Cheap Ebay Chargers 32/40 amp

    You very likely DO NOT need a TeslaTap. Greenlots has zero Tesla Destination chargers on their network. There are 6 locations in the USA and one in Canada that have both Greenlots and Tesla Destination chargers, and they are all a mix, see this: https://www.plugshare.com/location/2803 I...
  20. W

    First Use of JDapter Stub for Tesla Destination Charger to Chevy Bolt

    Wouldn't be easy, so probably isn't affordable. Communication protocols are rather different. Would need, at minimum, a battery powered microcomputer with a CHAdeMo on one side and a CCS on the other. Even that might not work, there might be a message timing on one side or the other that could...
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