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oblio avatar image
oblio asked

Help with Re-engineering my battery system

My sailboat currently has 4 batteries in 2 banks of type 27 batteries. The system is running 12v. The boat has a battery switch "1 both 2 and off". It currently doesn't have a separate starter battery, but I want to install one of the type27 batteries as the starter battery.

I have a new running mttp 100/50 and two 330w panels charging 3 parallel 4D AGM batteries that are mounted and charging, but not connected to the system that will be my house batteries.


I'm looking for a schematic that I can use to properly install the system. New battery switches and isolator with a battery monitor.

Is there a schematic available to follow?

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1 Answer
Mark avatar image
Mark answered ·

Things can get complicated quite quickly and I would recommend that you engage the help of a professional installer.

But there are a number of very comprehensive electrical schematics on the Victron website in the download > system schematics area:

https://www.victronenergy.com.au/support-and-downloads/systems

This example might be relavent for you as it includes a starter battery and alternator in the system, but there are many others;

https://www.victronenergy.com.au/upload/documents/VE-Bus-BMS-example-with-3KW-12V-MultiPlus-230-Volt-revision-B.pdf

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