A new note... today my phone went from 100% charge to 11% in 5 hours. Maybe that is why the chargers just cant keep up with the battery drain. BTW, phone was just lying on table; no apps open.
As far as I'm concerned my problem is solved. I think the issue was the combination of the somewhat thicker Mozo cover with the bad alignment of the coils of the L950 and the DT910. I bought a new standup charger from Choetech http://www.amazon.com/gp/aw/d/B010B...ag=hawk-future-20&ascsubtag=UUwpUvbUpU3372494 This one works fine with the Mozo cover. It even charges with another even thicker cover.