Dell Latitude XT2 Handbuch Seite 5

Charging Your Battery Slice
You can recharge your battery slice independent of the Tablet-PC using the
AC adapter that shipped with your Tablet-PC. Your battery slice will also
recharge whenever it is docked to the Tablet-PC and the Tablet-PC is attached
to the electrical outlet using the AC adapter.
Battery-Slice Power-Status LED Codes
Your battery slice includes a power status LED that can indicate the following
states:
LED Codes
Blinking amber, off, blue, off,
amber, off, blue, off
Blinking amber, off, amber, off,
amber, off, amber, off, long blue,
long off
Blinking amber, off, amber, off,
amber, off, amber, off
LED off
Steady blue light
Battery Slice Specifications
Physical
Height
Width
Depth
Weight
Status
You are trying to use an unsupported,
non-Dell AC adapter to power your
tablet-PC.
Temporary battery failure with AC
adapter present.
Fatal battery failure with AC adapter
present.
Battery in full charge mode with
AC adapter present.
Battery in charge mode with AC adapter
present.
8.5 mm (0.33 inches)
295.32 mm (11.63 inches)
213.32 mm (8.4 inches)
0.60 kg (1.32 lb)