The Battery % for the unit seems to lag badly, especially after turning on.
For instance, after a ride on Sunday, I put my 1050 in sleep mode at 88%. When I turned it on for a ride on Thursday, it said 88% when I turned it on, and then still said that when I picked it up in a few minutes.
Before I started my ride, the battery percentage updated to 78%. So I had lost 10% in less than a week in Sleep mode, which is probably a separate issue (seems like noticably more leakage than when I kept my 840 in sleep mode.)
This is an issue because when I turn on my device and read the battery, I am not sure I can trust what i see or know whether the abttery is critical enough that I need to charge it. Also, makes me wonder if the % is laggin during the ride as well.