RAM MOUNTS (RAP-B-101U-G4 Composite Flat Surface Marine Electronic Light Use Mount for The Garmin Echo 100, 150 and 300C

I've been using the Garmin echo 100 now for a couple of months and so far I'm extremely pleased with the little unit I mean it was well worth the money I paid for it which you know it's not a lot 80 bucks I think by the time I put tax on it it was about 83 something but I had everything pretty much laying around in the garage to install it I invested a little bit of money and some plastic and a this little mount to mount it so maybe for a hundred bucks I've put the thing on the boat used it enjoyed it it's been well worth it I have one small complaint and I've spent the morning trying to see if I could do what I wanted it to do but I can't find it if it's there you notice up here it's got the depth in the water temperature I would really like for it to have battery voltage displayed now as it is I have to hit the Menu key go down to setup hit enter and I then see up here that the batter