Batt Voltage Display?

[thenewbreed]

Ive noticed some changes to my Display in the last week or so. I cant find any engine problems so I figure I would see what you guys think.

One of my 4 selected displays on my Gryphon is Battery Voltage. Before the issue when I started up the battery voltage display would show 14.1 - 14.4 volts. Now in the last week when the truck starts up the battery voltage display shows about 12.2-12.4 volts but within seconds starts ramping up to the 14 volt area and holds there while I'm driving. Is this normal and if so why do you think it just started doing this. The last thing I have done to the truck where new HID wiring and I got an inspection, both within a few days before the issue started.