Search results

Well, the aux battery isn't really supplying much because the leaf is kept on (in ready-to-drive mode) so it's taking power from the 400V traction battery and feeding the 12V bus via the onboard DC-DC converter. That way the inverter is indirectly feeding from the 24kWh of the traction battery...

Sorry for missing all your replies, my notifications must have been switched off. To answer the question, fully discharging the battery all the way down to turtle did indeed make a massive difference. The BMS was vastly underestimating the amount of charge available in the battery. Before...

I've just finished wiring in an inverter so I can use our 2016 leaf to power the house during power cuts. I did it in the usual way, by tapping into the 12V system (more on that below). Now, you know the "energy information" screen, that has a big gauge for the power consumption of the traction...

I understand how it's preferable to discharge it gently- I've done that before but this time round I wanted to measure the actual mileage the car had in it below the "---%" battery indication (to see how far I can push it in a real emergency), and the only way to do that (short of having a...

On many electronics, it is commonly believed that draining the battery until the device dies helps to "recalibrate" the fuel gauge. I've heard mention of this with the leafs as well. It makes a bit of sense - we all know the BMS is just trying to guess true SOC and the only way for it to know...

I have the Leaf in the garage and a simple system to use it to power the house in emergencies (basically a suitably-fused 12V inverter across the leaf's "starter" battery. Inverter's output then feeds the house via a transfer switch). There is WiFi in the garage (powered by the house or the...

Oops. That explains a lot. Throughout this thread I meant to improve the linearity of the SoC readout. I already ignore the GOM then 😅

Since making my post I've deeply discharged the 24kWh leaf and fully charged it, and currently I'm getting just over 1.3km per percent, whereas before I was getting about 1km per percent. I drove the car until it was reading 8%, then parked in the garage and left the heater and all electrical...

To be honest I don't really look at the GOM mileage estimate. It's usually far too optimistic. Malta is like a never ending city with nothing but constant stop-and-go and very large speed swings every few hundred meters. The e-pedal mode on the ZE1 is worth its weight in gold. I do look at the...

Hey, did you ever manage to get anywhere with this? I'm also looking into a DIY V2H setup

What would be the cell voltage at cutoff? I believe damage only starts at around 3.0V but with a bit of extrapolation I'd say the car cuts out quite a bit before that, I think not less than 3.2. Would this low-end calibration make the GOM more linear? Do I have to do a full charge? Usually I...

In my experience, a weak cell is one that has low capacity, high internal resistance (IR), or both. That would manifest as a higher voltage during charging and a lower voltage during discharging, since the weak cell is getting filled up or emptied prematurely compared to the rest of the pack...

My 2022 40kWh leaf has a good GOM - very linear. My short commute always costs me about 3% indicated battery charge each way. We just bought a 2016 24kWh leaf for my wife and the GOM drains nonlinearly. It falls quickly in the upper percentages and slowly at the bottom. For example, if it's at...

That's interesting, thanks for the info. If I had access to the cell it would be very easy for me to charge it with my computerised hobby charger (I've been into RC toys and power inverters for over a decade) - problem is getting to the cell as you rightly pointed out! :D Wish there was a way...

We just got a good deal on a used leaf with very low mileage. Previous owner left it abandoned in a garage for a year and one of the cells seems to have self-discharged more than the rest and is now sitting at 50mV lower than the rest of the pack. I've tested at full charge and at 25% indicated...

My wife's old shape (2016) leaf had the passenger door slammed forward by a gust of strong wind as she was exiting, and now the door makes a dull "thud" noise when closed that it didn't before. It seems that the end is now sagging about 5mm, so the top of the latch slot of is hitting the...

Thanks for the link. It seems he did it by injecting power into the cable coming out of the battery using an adapter. Very physically neat solution because you can return the car to stock in minutes by simply removing the adapter and restoring the direct connection between the battery and the...

The way I imagine it functioning would be that a generator (in a trailer behind the car, or in the car with suitable ventilation measures) would inject a constant power into the battery, at a maximum rate of 6.6kW (limited by onboard charger) - or less with a smaller generator. Battery charge...

Does anyone know how it's handled internally? There must be some communication between the charger and the rest of the car to send the "disable charger" command when "ready to drive" is active. Perhaps there's a way to interrupt that flow of information so the charger never gets the message.

Has anyone figured out a way to bypass the limitation where the leaf's onboard charger is disabled when in "ready to drive" mode? I know there are workarounds to adding external power on the move, like tapping into the 400V cabling between the battery and drive inverter, or using an...