So those with a Leaf and the OBD dongle, do you leave it plugged in 24x7 or do you take it out when not actively using it (via LeafSpy)?
I read somewhere that those dongles can drain your battery if left plugged in for long periods of time.
Apparently it only drains significantly if you leave it on AND its communicating with the app. I leave it plugged in 24x7 but turn it off when not driving (just in case!).
Some of my screenshots (2013 model):
Lost a bar within a week of purchase, which is when I got the dongle. When it's 100% SOH, it reports about 16.5 kWh. I'd have still bought the car, but SOH would've informed the pre-purchase conversation with dealer.