Multiplus II 3000 vs 5000

[AdrianChen]

So I’m considering doing an upgrade to the vans batteries, charging and inverter, and have a question for the knowledgeable Victron guys.

The idea is to make the van a little more convenient off/on grid so I don’t have to worry and have to reset switches if the hairdryer comes out while I'm making coffee etc.

The basic upgrade would be to add a couple of new batteries to give sufficient output to drive a bigger inverter – which in turn might require more charging capability than we have.

At the moment we have a Multiplus II 3000/120/32. The question is has anybody used two in parallel? Or is there good reason to go with a Multi 5000?

Paralleling 2 3000's would be cheaper since I already have one, but I know the consumption on idle will be higher…..

I have seen the MV equivalents paralleled but not Victron not heard any feedback positive or negative.

So is there a "better" option betwenn the two?

 

[adi4]

Firstly.
A 5000va Multi / Multi II is a special order only but they do exist, just not off the shelf, most of the time people will go for the 5K Quattro, which is a massive unit.

Running 2 in parallel is only a programming exercise, but you have to make sure that battery cables and mains out cables are as close to the same length as possible so the load is balanced between the 2 inverters, I run a pair of 5K multis in parallel in our workshop.

If it is mainly a faster recharge, you are after it might be easier to add another battery charger

 

[AdrianChen]

Firstly.
A 5000va Multi / Multi II is a special order only but they do exist, just not off the shelf, most of the time people will go for the 5K Quattro, which is a massive unit.

Running 2 in parallel is only a programming exercise, but you have to make sure that battery cables and mains out cables are as close to the same length as possible so the load is balanced between the 2 inverters, I run a pair of 5K multis in parallel in our workshop.

If it is mainly a faster recharge, you are after it might be easier to add another battery charger

Thanks for your reply

I also want some more inverter output, hence this route, space/weight are important as well - Still debating the cost/benefit in my mind!

I didn't realise the 5k ones are special order, might explain the cost though!

 

[adi4]

Just to give a size perspective here is a 5K Quattro pictured next to a pair of 560ah Fogstar Drift Pros , that I am fitting into an RV today

 

[AdrianChen]

Yes pretty big - batteries might also be my choice - many thanks....

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[adi4]

Yes pretty big - batteries might also be my choice - many thanks....

If you want to find out more, feel free to call me on 07831812120
Adi