Posts: 674
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: Dealers "reset computers" on used Leafs: Does LeafSpy help?

Mon May 15, 2017 3:05 pm

This is an old thread, but there is a simple way to screen for battery resets:

1. Reset the trip miles/kWh counter
2. Note the battery SoC
3. Go for a drive of at least 10 miles but preferably 20+ miles
4. Note end SoC

Usable capacity is calculated in kWh as
(3/1) / (2-4)

This is not exact because the SoC counter is presumably not linear but it is good enough to find a battery reset. Anything below 18 kWh would be very concerning and a calculated value below 16-17 kWh is a sure bet if the battery read-out from LeafSpy shows anything over 20 kWh
2013 Model 'S' with QC & rear-view camera
Bought off-lease Jan 2017 from N. California with 63.9 Ahr after 22k miles
Car is now enjoying an easy life in Colorado

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