Your 20% degraded (80% SOH) LEAF does not have 20kWh capacity remaining. Even if the car started out with 24kWh of usable capacity (it doesn't), then you would only have 19.2kWh remaining at 80% SOH (24 * .8 = 19.2).
Don't forget, those calculations with your JuiceBox are about how much energy it is drawing, not how energy you are putting into the battery.
Please, it is well known that the GOM has no real bearing on real available range on your car.sendler2112 wrote: When I charge to 100% (very rarely) the guessometer shows way over 80 miles.
Your LEAF looks like an awesome bargain at $7000, and will serve it's new owner well. Just please don't inflate the available range to the buyer. I won't respond again unless you quote me.