2007 FG Instrument Panel Lights Out

[pugslyyy]

Unless I am mistaken, unless you include the charge cables as part of the disconnect, power will still be supplied to the truck from the alternator.
Simply disconnecting the batteries will not disable the electrics and everything I have read says you should not disconnect the batteries while an alternator is supplying charge.

I've only had to do that once, when a battery caught fire while driving down the road. Turned off the battery disconnect and kept on driving. That was a fairly unique situation, but the battery shutoff really came in use that day.