After installing the A09 BIOS on my 7140, I'm having significant battery issues.  The readme states that there were improvements around battery info; maybe these changes need to roll back out.

The main problem is that the battery seems to be charging much more slowly now.  I have the tablet and the keyboard/battery and it was estimating around 4 hours for charging both.  I left it charge for an hour or so and there was only about a 30% increase on one battery.  I'm sure it was faster before.

So I checked the Dell Power Manager software and it no longer recognizes the batteries.  They both say "unknown" where it used to list battery health and charging mode.  All it shows now is the charge level.

DELL?