thankyouOB said:
have you adventurers developed a consensus on what the charge meter says when the car is at turtle?
are the safest values to use for 100%?
24 hours on 120
and
7.5 hours on 240?
I have more data points now, and a theory. I'd say that we are getting closer to a usable solution. We may need more people to try this at some point or another, to confirm accuracy of this approach.
Bear with me for a moment, it's a bit complicated, but here is a brief explanation of how the reverse SOC could work. We are nearly certain that the hourly increments (or decrements) on both the 120V and the 240V charging gauges are linear and they represent a constant amount of energy. It's roughly around 0.8hWh for the 120V display and about 2.8kWh for the 240V display.
What's variable is the point of reference. What do I mean by that? Well, the charging time display seems to adjust the distance to T0 whenever you plugin the car. This means that if I plugin the car into a trickle charger for 10 minutes, the board computer will try to recalculate distance to 0 hours charge time, and mess up the scale. This is how I likely ended up with 28 hours on the 120V display at one point and 11 hours on the 240V display on another.
The obvious workaround is to charge to full on a trickle charger to reset the gauge, and then only use 240V for opportunity charging. I'd ignore the 240V display at that point, because it will get out of whack with frequent partial charges. The 120V on the other hand, should remain accurate, so long you don't use the trickle charger for partial fill-ups. I hope this makes sense so far.
I believe that the car will go into turtle mode once you reached 26 hours on the 120V display. I'm in the process of confirming that. Filled up to 100% via trickle charging couple of days ago and the Leaf will be near empty today or tomorrow. I would like to repeat this with an 80% charge, and I believe that turtle mode will engage at 21 or 22 hours in that mode.
Anyway, that's all I have. I've been diligently gathering data, but I didn't have time to share it all due to other commitments. Thank you for keeping the thread alive, and if you wanted to help with the validation process, please chime in and post any results and observations you might have.
Best,
George