3 Bank Battery Monitor

[Dino]

Hi, I recently bought a new (to me) boat. She is twin diesel and everything is 24v. She has two starting batteries per engine and a two battery domestic bank. I am considering installing a battery monitor to keep an eye on the batteries. I noticed that most monitors only look at the domestic bank with a basic voltage reading for the starting bank. Is it possible to get one that monitors the two starting banks along with the domestics?
My bow thruster seems to be fed from one of the starting batteries so there's a risk it could get depleted more.

 

[jfm]

Hi, I recently bought a new (to me) boat. She is twin diesel and everything is 24v. She has two starting batteries per engine and a two battery domestic bank. I am considering installing a battery monitor to keep an eye on the batteries. I noticed that most monitors only look at the domestic bank with a basic voltage reading for the starting bank. Is it possible to get one that monitors the two starting banks along with the domestics?
My bow thruster seems to be fed from one of the starting batteries so there's a risk it could get depleted more.

The typical and perfectly nice Mastervolt and Victrons units will do proper monitoring of one bank and "half baked" monitoring only of two further banks. "Proper" means measurement of amp hours in and out so thr read out is like a fuel tank gauge. "Half baked" means just measuring volts and estimating thr state of charge from that.
I'm not aware of any catalogue unit that does proper measurement of all three banks. You could buy three units of course. The bowthruster set up is a good reason to have proper monitoring at least of that bank.

 

[Ian MacAulay]

costly but would be a great system is a master volt system with mastershunt 500 device on each bank.

 

[Dino]

Thanks for the suggestions. The Mastervolt mastershunt 500 looks like a very good system but I would need one for each battery bank so it would make it very expensive.
I think my main concern is to monitor the domestic bank and the engine bank that drives the Bowthruster so a basic Nasa/Mastervolt or Victron unit should cover what I need.