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My Nissan Leaf Forum

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  1. I

    No Heat - brrrr

    Interesting! So pardon my ignorance but how do you clean it up? I opened the hood but it turns out the radiator is further up front, hidden by the whole front bumper assembly. Is there a panel to detach or something?
  2. I

    How to survive cold weather in your Leaf when stuck

    A lot of FUD is routinely spread against EVs on that topic. Reuters did a Fact-Check on it: https://www.reuters.com/article/factcheck-environment-ev/fact-check-electric-cars-not-more-likely-to-get-stuck-in-traffic-jams-idUSL1N2RW0QD
  3. I

    Sudden Turtle Mode in Very Cold Weather

    +1 for the battery warmer. IIRC the built-in 300W heater is activated only through a thermostat in the pack and it seems to be the only form of control it has. I'll go out on a limb and deduct from this that it cannot be activated from outside the pack in a way that we could leverage. I...
  4. I

    DCFC - Slower than expected - 2018 SV

    In fact regarding undertemperature, we can see in a previous graph that the charging current raises as the pack's temperature increases, and reaches full current at about the 5 mins mark, where pack temperature is about 15°C / 60°F at this point. Then, about 1 min later the power decreases...
  5. I

    DCFC - Slower than expected - 2018 SV

    This is what I tried to convey, yes.
  6. I

    DCFC - Slower than expected - 2018 SV

    That's what I'm trying to figure out. I've been trying to narrow it down and eliminating factors. In previous charges (in previous posts) I've tackled SoC and demonstrated the issue happens usually from 35% SoC onwards. Then, I tackled the pack temperature parameter by driving the car enough...
  7. I

    DCFC - Slower than expected - 2018 SV

    I have now confirmed the car is exhibiting the same behavior using Electrify Canada chargers this time, the last charging network in my area that I had not tried yet. Out of the available chargers: - Electric Circuit (AddÉnergie 125A or 200A CHAdeMO) (and chargers also operated by sister...
  8. I

    NTB19-056 - Lithium battery controller reprograming

    Earlier this year, the lithium battery controller of my 2018 SV has been reprogrammed as per technical bulletin NTB19-056 aka the Rapidgate patch. Ever since, I've had issues with quick charging. I spent time until now to rule out possible causes of slow charging and am now up to the battery...
  9. I

    DCFC - Slower than expected - 2018 SV

    This is making me realize that this could very well be an issue whenever we get unexpected slow charging current. The DC fast charger's power electronics have to stay cool, too and it could well be that one of its power module is faulty or has bad cooling, but still works. I know that some...
  10. I

    DCFC - Slower than expected - 2018 SV

    Well, would you look at that. I wrote to Electric Circuit regarding the odd charging speeds that I've experienced and provided the sessions reference numbers and they've responded the following: It appears to have been the chargers then. I'll copy here whatever information they follow-up...
  11. I

    DCFC - Slower than expected - 2018 SV

    I've had the chance to do a proper DCFC lately and ended up with two nice graphs, from the charger and from LeafSpy. I had the car in ACC mode so that LeafSpy would record continuously. Care was taken to do exactly nothing otherwise (no heating, no nothing, just ACC mode). Alternate graph...
  12. I

    DCFC - Slower than expected - 2018 SV

    By looking quickly at the raw data, I see a 30mV max diff when charging at 125A. Max CP diff mV peaked at 50 when charging at 90A then tapered down as power went down. Max CP diff was about 17mV at rest after charging. I will try to work out a proper graph and will attempt a new DCFC with the...
  13. I

    DCFC - Slower than expected - 2018 SV

    Interesting. I was under the impression that the car was actually requesting the current. The AddEnergie chargers (used by Electric Circuit) have an LCD that displays both the charger's possible current and car's requested current. Whenever throttling occurs, the displayed requested current...
  14. I

    DCFC - Slower than expected - 2018 SV

    In the summer I have experience better charges at temperature levels under rapidgate - in this case would it be because of too low temperatures then?
  15. I

    DCFC - Slower than expected - 2018 SV

    Here's a graph of the charger's values (below). The numbers correspond except when accessories were used (last part, annotated). Indeed, I figured toying with the car while charging wouldn't allow meaningful conclusions. For this charge, the car was left unpowered and without any accessory...
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