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Car charge draining battery

Open onetoomany opened this issue 9 months ago • 3 comments

Just bought an EV and set up a zappi charger. Moved from Agile to Intelligent Go as my tariff. Quite a few changes at a time, so I'm sure this is a config issue!

The issue I have is that during an intelligent charge slot, the car charging kicks off but the battery starts to drain rather than charge.

Intelligent charge slot from 15:30 today. For the first 30 mins this drew from the battery, then at 16:00 started to charge the battery.

Image

predbat.log

predbat_plan.zip

onetoomany avatar Jul 31 '25 15:07 onetoomany

RTFM ?

You haven't said whether you are using predbat led charging or IOG led charging; I'm guessing its IOG led.

You haven't included your apps.yaml or your predbat debug file so we can see your setup.

Its very difficult to know what you have done wrong without this kind of information.

Please re-read the car charging setup and double check that you have configured apps.yaml and predbat controls correctly https://springfall2008.github.io/batpred/car-charging/#additional-car-charging-configurations

Predbat should pick up when an IOG session is planned and set your battery to charge or at least freeze charge. Your problem suggests that apps.yaml isn't configured correctly and predbat isn't getting the IOG session information correctly

gcoan avatar Aug 01 '25 19:08 gcoan

Apologies, the yaml was in the zip file - just my poor naming. That said, I've gone through the instructions again, and I can't see anything untoward but have cleaned it up a little. Yes, this is IOG led charging session. Predbat appears to be aware that the car is charging, but doesn't instruct the battery not to discharge.

Inverter - sofar Car charger - zappi Tariff - IOG

predbat (1).log predbat_plan.html.txt apps.yaml.txt

onetoomany avatar Aug 10 '25 15:08 onetoomany

@gcoan - not sure this is fully a config issue. Issue is still ongoing with the battery not going into freeze charge during an IOG charging session.

onetoomany avatar Sep 11 '25 13:09 onetoomany