I've got the charger bundle too and it has been a life saver. But with 1925 on my Z10, the battery issues seem to have been solved, even with Android apps up and running. I can easily get thru the day starting with a full charge, till late afternoon usually. But I'm also not too far from a charger most days as well if it needs a top up before getting home. So kind of a non-issue for me.
Posted via CB10