C41006 Many li-ion powered devices with smarter battery management systems, won’t let you charge the battery when too hot, b/c it shortens battery life. Not being able to charge immediately after a long (and especially high energy consuming ride) could actually be hidden smart feature that is poorly documented / understood by retailers.
As for battery fluctuations on the display: this is not unheard of, but I’m a bit surprised you’re having such large ones. All batteries will have effects that cause incorrect voltage/battery % to be reported. The throttle displays aren’t intelligent enough to know what’s going on. Some effects are voltage sag after a long discharge, temperature-related, and just lag for the display to update voltage/% remaining estimates.
@DrScootLittle Have you noticed the same effect on our Wolf King?