Hi all,

Bought a new (to me) boat about a year ago. Far from my first boat, but my first boat with instruments that ... work. I would like to display the battery voltage on one of the Raymarine i70s MFDs. This is a bigger challenge than I expected.

The display knows and can display the NMEA backbone voltage (which would be sufficient for what I need), and I know this because I can poke around the setup screens and find it. But if I create a screen and add battery voltage, it stays blank - It is not documented in the manual, but I understand it is looking for the battery voltage PGN on the network.

I don't really want to add a full battery monitoring system, but I'd be open to something that plugs into a spare drop on the network and just shouts back out the voltage. Or some way to force the display to just display what it is measuring itself. Does anyone have any ideas for a solution here?

The network is some wind and depth instruments on a Seatalk 1->NG converter, a B&G Zeus S, Precision 9 compass, NAC3 autopilot, B&G autopilot buttons, Fusion stereo, and 3x Raymarine i70s. None of these appear to have the ability to add the battery voltage to the network.

I have a voltmeter at the panel so this is very much extra, but seems like a relatively easy problem to solve that I ... can't.

Thanks