I thought this Facebook discusson on the "My Nissan Leaf Owner" group is worth sharing.
This Leaf owner has a 2014 Leaf with 25.3K miles and still showing 100% SOH via LeasSpy. Our Back and forth:
Iniitial Response to keeping SOH health high:
Drive faster. Accelerate faster and regenerate as much as you can in B mode. Forget about hypermiles and do not drive slowly and very gentle. This slowliness is killing your battery.
What MY is your Leaf?
First Registered December 2014
Thanks. Can you give a few more details on how you drive and charge your Leaf? When accelerating do you try to hit 4 or 5 power bubbles or as many as possible? When I purchased by 14 Leaf a few months ago it had 8,750 miles, SOH 100%, AHr 67.36 and Hx 104.28%. Today at 10,392 miles I'm at 92% SOH, AHr 60.34 and Hx 92.49%. I've been driving gently 85% of the time. Going to push the car the next few months and see where my numbers go. I assumed age degradation was at play. I also do not have QC on my car.
When i accelerate my aim is 5+ power dots, it only takes few seconds to get up to 30mph.
There is a bunch of info you need to know.
You have the HX value, which influences your SOH and AHr.
I found out that you can push and maintain HX value up and above 100% by short fast accelerations and power regeneration in very next second.
I keep lot of distance between me and vehicle in front of me. I accelerate fast 5-7 bubbles and next second lift the throttle and regenerate, best results in B mode ECO.
Also when first in line at traffic lights i don't miss a race, even when I’m the only car on the road
The easiest way to litteraly push up your HX is driving on highways 60mph accelerate full throttle up to 65mph, release throttle for regeneration in B mode. When it slows down to 60mph repeat. If you use leaf spy/happy leaf you'll see HX going up with every acceleration.
Battery must be at above 33% on dashboard, from this charge and down your battery values will freeze, no matter what you do they wont change. Usually from this state of charge i drive very gentle to get the maximum range for my remaining 33%.
You may want to aply this treatment immediately after DC charging, its easier because even the 3-4 power accelerations will make an improvement. When i charge with my 10A evse (~2.4kwh) i find it a little bit difficult to keep HX up as i need to be very harsh with the car.
Best time to work out your HX is immediately after DC charging. Push it up as much as you can with every DC charging and try keep an active driving style for the rest of the time, drive slow and gentle below 33% charge as this doesn't count on BSM.
Sometimes i charge every day on DC and my HX goes up to 102-103% without trying too much. I'm checking my charge on leaf spy at least once a day, when my HX is 99% I'm heading for my nearest DC charger.
Your SOH will follow HX value, not instantaneous because it's updating only couple of times a day or so. Also AHr is improving accordingly.
Thanks for the detailed information. I'm going to drive your way for the next few months and see where my numbers go. It might be harder since I can only charge L2, but I never L1 charge. My employer provides L2 chargers. Free driving! My commute and other driving needs are not long range so I seldom need to fret about my SOC. Have to admit the Leaf is a different beast when you push it!
It needs fresh charging. I charged once DC on Friday afternoon and i used my car for about 15 miles over the weekend. Monday morning i barely managed to maintain HX by accelerating really fast. Somehow this chemistry works better immediately after charge.