Update on the recharge time results for my LEAF, now at ~20,000 miles, 26 months from production, and now under “85% capacity” as shown by the LEAF app:
Following 9/7/11 range/capacity test, to just past the VLBW, ~4 hours 25 minutes of recharge to reach “80%”.
Following the 9/8/12 range test ~4 hours and 16 minutes to reach 80% , and another one hour and 11 minutes to stop charging at “100%, 5 hours and 27 minutes total .
Following my 4/2/13 range test, it took ~4 hours and 14 minutes to “80%” (at considerably lower battery temperature).
Following 6/2/13/13 range test ~4 hours and 19 minutes to “80%”
Following 6/30/13 range test, ~4 hours and 18 minutes to “80%”.
Following 7/7/13 range test ~4 hours and 19 minutes to “80%”, and another one hour five minutes to stop charging at “100%”, 5 hours and 24 minutes total.
IMO, these recharge times from ~VLBW to “80%” seem consistent with my range tests, which have shown no significantly large losses of available battery capacity over the last ~22 months.
In addition to the very useful m/kWh at constant speed results for 2011 Nissan Leaf – VIN 0356, the total recharge times and kWh accepted are reported at:
Advanced Vehicle Testing – Baseline Testing Resultshttp://avt.inel.gov/pdf/fsev/fact2011nissanleaf.pdfviewtopic.php?f=31&t=13265
I think considering the total charge times from ~turtle to "100%" may also be very useful, as the recharge times correspond so closely to the kWh recharge capacities for 0356.
It looks to me like the taper charge period may be
so consistent as to allow useful comparison of capacity by measuring time, which is much easier to do accurately than measuring kWh from the wall
, at least as the inconsistent reports of metered results on this thread seem to suggest.If comparing total charge time is valid
, then My LEAF may have close to the same average available capacity that 0306 had when it was tested, though the multiple variables and the variation in LEAF 0356’s measured recharge capacity in kWh (the three recharges varying between 18.1 and 18.6 kWh) gives you an idea of the limited precision of any available battery capacity
Unless the charge from “turtle” to VLBW is at lower kW (anyone checked that?) it may reasonable to add ~25 minutes to my total charge times to account for the ~1.5 kWh below VLBW capacity that I did not use in any of my range tests, to extrapolate a charge time for a SOC range equivalent to that tested for 0356.
Compare my 5:27 total recharge time from 9/8/12, and the 5:24 total time from 7/7/13 minute recharge, add 25 minutes, then you can compare an extrapolated average time of ~ 5:51.
Adjust my times by less than 1% to reflect my slightly lower voltage (~238 V, as best as I can tell) then you get an adjusted time of ~5 hours and 48 minutes.
Very close to LEAF 0356’s 5:37, 5:45, and 5:52 recharge times from “low turtle” to “100% shown in the tests of 0356, averaging ~5:45 (recharged at similar temperatures).