Thanks for all the info guys. The ground on the battery I know it went out last summer and it might have been when I wired up my second battery. I attached an old picture (I cleaned this all up, but the black negative cable is the ground you are suggesting I check?

Paul - "pegged down" in that it sits on a reading of "10." All the lights on the gauges work (just had out on a little cruise around Tampa bay and had some dinner at Rick's on the river and headed home at dusk) but will double check the connections. Maybe some bulbs are out, but not all.
Firecadet-How does my 546s pick up the voltage? Just by being connected to my fuse box? Worked great Saturday, but there are a ton of settings on that device. I need to make a way to power it when sitting on my couch so I can get the settings just how I like them (damn water temp elude's me).
aguyindallas-which gauges are mine? There is no marking on the face and I have only pulled them out once and do not recall seeing a name on them.
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2010 Sea Hunt Triton 220 "Big Whiskey"2003 FW Freedom 180 Volvo Penta 4.3GL/SX-M "It'll Do Four Now" (Sold)
2012 Avalanche LTZ 4X4 