I haven't come to that conclusion, YET, as their are people complaining about
battery issues who have working typecovers.
I wish I had a solution...
> the typecover problem and the battery drain problem are linked
That's what I've worked out now that I've chased up so many threads on Surface problems. My battery drain problem was happening for quite some time before the typecover problem. I notice the battery drain when I'm traveling and when I'm home it's plugged in so not noticeable.