So as I've been shopping for used LEAFs, I've been reading the state-of-health (SOH) percentages using the LEAF Spy Pro app and comparing with the remaining skinny far right battery bars (BBs) on the console. I found they don't always seem to correlate.
From what I've read, the first battery bar represents 15% capacity, each subsequent only 6.25% capacity.
(On a side note: 1 X 15% + 11 X 6.25% = only 83.75% and not 100% for all 12 battery bars -- ???)
Nevertheless, if I go with what I've been read, then:
12th BB should equal 85% SOH,
11th = 78.75%,
10th = 72.50%,
9th = 66.25%,
8th = 60.00%,
... down to
0 = 16.25%.
For the limited cars I've tested, the following shows SOH measured, battery bars observed and battery bars that should be shown:
Car A: 71%, 10, should be 9
Car B: 84%, 12, should be 11
(I will post more data as it becomes available)
So, which should I trust more when determining a used car's overall battery health-- Nissan's battery bars or the LEAF Spy Pro SOH reading ?