Interesting data there. On my LEAF (~54.75 Ah) hit LBW last night at 49 GIDs, 24.9% SOC. djjazzy's LEAF is certainly acting like a LEAF with less capacity, but it appears that the transition from VLBW to turtle is definitely heavily based on actual pack voltage.RegGuheert said:Ideal LEAF (with accurate instruments and assuming 80 Wh/GID):
Full capacity = 22,480 kWh (charge capacity or 21.5 kWh (discharge capacity) = 281 GIDs = 94% SOC
LBW capacity = 3.91 kWh = 49 GIDs = 17% SOC
djjazzy's LEAF:
Full capacity = ?, but LeafSpy reports battery capacity of 59.69 Ah = 94% SOC
LBW capacity = 3.91 kWh = 49 GIDs = 26% SOC
RegGuheert's LEAF:
Full capacity = ?, but LeafSpy reports battery capacity of 59.60 Ah = 94% SOC
LBW capacity = 3.91 kWh = 49 GIDs = ~19% SOC
I wonder if there is something different about the later '13 LEAFs that is causing this? My best theory is that it started happening when Nissan switched to using battery modules made in the USA rather than Japan and there is something different about the USA made cells (perhaps higher impedance) or electronics that is causing this artifact.
'13 LEAFs aren't the first ones to have seen this behavior, during Tony's Phoenix range testing last year a few of the LEAFs also exhibited similar behavior.