SOH is a measure of internal resistance that happens to correlate exactly with remaining capacity. So a SOH of 90% means 90% remaining capacity. (Hx measures the same thing, but it's more like a snapshot of the moment, and SOH is more like an average over a longer period.) My 2013 SV has 16.6k miles on it, BTW, and still has 12 bars, although that may change this Summer.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.