[Oeva-list] Leaf battery

Alan Batie alan at batie.org
Fri Apr 29 18:20:12 PDT 2011


I've been looking at the Carwings data for that trip to Portland a
couple weeks ago, and either the estimator is being awfully conservative
(which would make sense except for the reports of people running out of
juice early), or the energy consumption sensor/calculation Carwings is
using is faulty, or the battery is smaller than they say:

Battery spec: 24kwh

Carwings report for the return from McMinnville (where it got a 100%
charge that Sunday): 11.7kWh 48.6miles 4.2miles/kWh

Range estimator/battery gauge: 66% (27 miles remaining)

kwh capacity derived from usage: 11.7/.66 = ~18kwh

The 66% is consistent with 27 miles remaining after going 48 miles.

I'm guessing Peukert at work...

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