Occasionally, in the morning, long after charging is complete, I disconnect the e-fuel nozzle and get in the car to leave. I "press" the car on, and I get noise (sounds like a "loud" whiring, perhaps like the fan(s), not the quiet hum of the cooling pump during charging) for a short while, probably less than a minute.
It might happen only after 80% charging, since I never heard the noise during the first month or so when I was only charging to 100%.
See SOC/GID-Meter and CAN-Do Info
2011 LEAF, 2014 Tesla S85
2018 & 2019 Tesla Model 3
Solar PV: 33 x 225W -> 7 kW max AC
Craigslist: Xm5000Li Electric Motorcycle