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Axpert Pylontech battery/solar drain issue


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Posted

Just noticed my Axpert/Pylontech/ICC setup is showing a constant drain on the battery/solar of about 60w 

So overnight the house was on grid. But grid watts was constantly running about 60w lower than load watts, and battery was around -60. SOC degraded overnight so I believe this to be true.

Then when the sun came up the loads were still on grid but the panels were bringing SOC up. Again, grid watts was lower than load watts, and PV watts was higher than battery watts, by around the same 60w

Have I got something set up wrong, is something defective, or is it just what it is?

Posted
1 hour ago, Hagu13 said:

Have I got something set up wrong, is something defective, or is it just what it is?

The Axpert draws its self-consumption always from the battery - even if it is running in utility mode. So yes, this is perfectly normal in your case

Posted

Thank you wolfandy

Seems an odd way of doing things and a bit of an error trap to overdraw the battery at night when it's "not in use" but easy enough to work around now that I'm aware

Posted
5 hours ago, Hagu13 said:

But grid watts was constantly running about 60w lower than load watts,

I would have thought that these two would have been exactly the same.

But the effect is the same: self consumption comes from the battery, thanks to the lack of an AC power supply since models manufactured about 2014.

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