question

Ken Davis avatar image
Ken Davis asked

Reduce Current Draw Demand for Charging Batteries

I have a Cerbo GX controller on my Airstream trailer that allows me to charge and manage my batteries and my power inverter and my solar installation.

My truck has an 2,000 watt inverter so in a pinch I can actually use that to charge the battery. The trouble is the when the batteries are low they draw about 2,200 watts to charge which trips the breaker on my inverter.

Is there a way I can limit the draw current for charging the batteries to be something less than 2,000 watts. 1,500 or even 1,000 watts would be optimal as the batteries would still charge in a fairly short amount of time.



charge current limit
2 |3000

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

2 Answers
JohnC avatar image
JohnC answered ·

Hi @Ken Davis

You don't give much info on the kit you're using, presumably a Multiplus or Quattro. You can tell those how much ac current to accept via the Cerbo..

1708320285433.png This is a 230V Multi set for 10A ac. There's a lower limit that applies, but you should be ok, even if you're 120V ac.


1708320285433.png (18.4 KiB)
2 comments
2 |3000

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

Ken Davis avatar image Ken Davis commented ·

Yes, mine is a Multiplus. However, when I try to adjust the screen you mention I get the error saying that this setting is disabled by remote. What's the easiest way for me to enable this?1000019484.png

0 Likes 0 ·
1000019484.png (261.2 KiB)
Show more comments
nickdb avatar image
nickdb answered ·

The multi's also have a DC charge limit, which you can restrict via victron connect or veconfigure (requires a mk3 adapter or remote VRM access). This only limits the charge from the inverter and does not affect other DC sources.

2 |3000

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

Related Resources

Additional resources still need to be added for this topic