State of charge discrepancies.

[TheMachMan]

I’m confused, which is isn’t difficult as electricity is like witchcraft to me!
The information on my Exide gel batteries handbook states one thing, but my indicator in the van shows a different set of figures. On top of that the Victron shows a current battery voltage of 13.45V. Which on paper suggests the leisure batteries are full. If they are full shouldn’t they be floating or absorption phase? I’m only getting 68W despite having 215W of solar and it’s bright sunshine here in Spain. What does all of this mean??

 

[Lenny HB]

The 13.45v is the solar charge voltage it should rise to around 14.2v when the batteries are charged then after a few hours of absorbtion drop to a float of 13.5 - 13.8v.

You will only see the true battery voltage with no charging and no load on the battery.

 

[CAB96]

It's October, the sun is at an angle, even though it seems bright there is far less solar energy getting to the panels.

Your eyes are very good at adjusting to the level of light.

 

[TheMachMan]

Cheers, but still don’t understand why there is a difference in the measuring scales between Exide and the Malibu panel. Which is correct?

 

[CAB96]

Cheers, but still don’t understand why there is a difference in the measuring scales between Exide and the Malibu panel. Which is correct?

What did/does the Malibu panel show? There doesn't appear to be anything on your picture.

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