springfall2008
battery left on HoldChrg @ 7% during IOG off-peak period
Describe the bug This morning at 5:30 my battery was at 5% charge. Looking at the history plan predbat decided to keep it at HoldChrg with a 7% target instead of Chrg to 100%. Predbat usually charges during this period.
Note that I am on IOG with Export @ 15p with Octopus, my car was not plugged last night.
In the screenshots you will see the battery charged at 6:00 am, this is because I plugged in my car at this point and Octopus sent some cheap slots. Prior to this manual intervention this all cheap slots would have completed by 5:30.
Expected behaviour Predbat to take advantage of the off-peak slot and charge the battery to 100%. The plan it gave was not optimal as during the day I would have diverted solar to the battery (losing 15p export opportunity) and also the battery was predicted to get to zero prior to the next 23:30 off-peak slot.
Predbat version v8.27.15
Environment details
- Libbi 5kW inverter and 5kWh battery
- HAOS 2025.11.0 on Proxmox
- Octopus and solcast integration installed and working
Screenshots
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History view
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Current plan
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Dash
If applicable, add screenshots to help explain your problem. The most useful ones can be your battery chart, the Predbat HTML plan and your current settings in HA.
Log file
Predbat debug yaml file
To add, after octopus gave me some charge slots at approx 6am, predbat recomputed incorrectly. I did not capture a screenshot, but maybe this is tracked in the debug file.
Octopus gave a few slots between 6 and 11am. Predbat decided it would be best to hold charge until about 8 or 9am, and only charge the battery at that point. This would be suboptimal as the PV forecast showed an opportunity to export the surplus from about 9am onwards at 15p.
I had to over ride manually.