question

daveybdublin avatar image

Gauge of cable 3 x 100ah lithium and Multiplus 12/3000/120

Hi there,

I have three victron 100ah lithium batteries and a multiplus 12/3000/120. I want to know what gauge battery cable should I use to link the batteries to eachother? I've read that 50mm sq for connecting to inverter but unsure what gauge is suitable for linking batteries?


Thanks

MultiPlus Quattro Inverter ChargerLithium Batterywiring
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2 Answers
Tom avatar image
Tom answered ·

@Daveybdublin see page 14 of the installation Multiplus manual - chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/viewer.html?pdfurl=https%3A%2F%2Fwww.victronenergy.com%2Fupload%2Fdocuments%2FManual%2520-%2520MultiPlus%25203k%2520120V%2520Ve.Bus%2520enabled%2520-%2520rev%252000%2520-%2520EN.pdf&clen=455719&chunk=true

I learned this the hard way...

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ofernander avatar image
ofernander answered ·

It all depends on the length of the circuit. One of the easier load calculators out there is by Blue Sea.

http://circuitwizard.bluesea.com/

Just plug your values in and it tells you what guage wire you should be using.

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Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.