Recent content by eKrom

Wow, that's interesting - so Leafs have (somewhat) worse efficiency. I can see how eliminating 80% would make the EPA range a bit better (against 80/100 average) so that is still a side-effect of EPA's silly standard. They can't prevent me from unplugging the car before it's fully charged or...

That is way cool, thanks!

New owner here of 2017 Leaf S - 1) How to check if the BMS software upgrade was applied to my leaf? 2) Is this only a fix to computing SOC/Range or are there any other benefits? Thanks, Michal

So it looks unclear why Nissan decided to remove 80% stop charge feature? Probably a somewhat different question: how bad is frequent "up-charging" providing it does not reach 80%. Or is better to run as long as possible (well perhaps not below 20% SOC).

Hey all! Thanks for all the discussion here! I am new to EV, my Leaf is 3 week old (with me). I am all for no-effort, plug and forget (as I am very forgetful). So any manual "3rd grade math to compute start time" would mean I will forget in the heat of the day to set it right (human factors)...

Hi, It appears there is no way to limit Gen1 Leaf Model SL (7" infotaiment) to automatically stop charging at 80%? I have tried to time it with the build-in Charge Timer but the leaf did not stop charging at given time. I suppose it does not as it was not full. So this timer is useless. A...

Thanks, I did realize that absolute loses in internal battery resistance are negligible in normally operating battery. However, I still wonder what does Hx=70% mean? That is if the Hx=100% represents "nominal conductance" and Hx=0% represents open circuit (conductance G=0) then the lower the Hx...

Alas, since I am very new here - I have ignored the fact that LeafSpy reports most of the cells as "red". There a few blue ones (about 8) which have the highest voltage of the pack. I would expect these blue ones are the one being "shunt" to equalize (unless my BLM lost its marbles :-) ). So...

@SageBrush2 duh! me a dummy! Yes, the actual losses depend on absolute value of conductivity (1/resistance) so my statement should read: "my leaf has 30% more loses in battery resistance than a nominal one" and not "30% more absolute loss of energy/range" Thannks!

@lorenrf Hx - a % of some reference conductance chosen by Nissan (possibly statistically)? (i have seen the values bigger then 100% reported?). I'd suppose 0% would mean an open circuit but who knows? Hx = 100% * Gmeasured / Greference Although 30% lose of conductance (Hx=70%) would mean the...

Thanks for the reply. I have read the about the 30kWh version deteriorating faster than the previous version, presumably due to higher internal heating. If the Hx is some representation of "internal resistance" of the battery, it would mean that more energy goes to heat, both during driving and...

Hi, I am new to EV and Leaf. Few questions about battery state. Leaf 2017 (30kWh) used in Bay Area: 15K miles SOH=88% Hx=70% below 20mV cell voltage difference (varies 4mV-20mV) 120 QCs 190 L1/L2 Questions: 1) It appears that the Hx is lower than what others see? I cannot find any...