Can a 24v growatt support either 12v or 24v banks?

New to the forum but not to Will's videos. Greetings everyone!

I'm adding a big system to my new motorhome. The previous owner has an older Magnum 2000w modified sine, no generator, no solar and 2 big newish Rolls 6v batteries. I've only ever done systems with components before and was actually considering to go all Victron this time just for the integration and monitoring benefits. But it certainly comes at a cost!

So Will's always glowing about the all-in-one option and the price / performance / convenience is tough to beat so I'm seriously considering it. If possible i'd prefer to use up these big lead acids first before installing a 24v lithium bank.

Can the Growatt 24V SPF 3000TL LVM - 3kW 120Vac service a 12v bank as well by just changing a setting?

Not to my knowledge. You have to run 24v battery packs (you could series two 12v batteries to make 24v though).

My fingers are still crossed, it would be such a great feature!

If not then it might be best to stick with components, use an MPPT to step the voltage down to accommodate the existing 2 x 6v bank until I switch over to a 24v lithium.

Reger said:

My fingers are still crossed, it would be such a great feature!

If not then it might be best to stick with components, use an MPPT to step the voltage down to accommodate the existing 2 x 6v bank until I switch over to a 24v lithium.

Click to expand...

How much solar can you fit on the roof? This unit may fit the bill and will let you run 1000w of panels (4x250w?).