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octopus bid rejected

Possibility

I would have a look at the log files for the battery that is playing up. If you can see that it hasn't been subjected to over voltage (of the battery not cell) then contact pylontech themselves and try for a warranty replacement. They are very good if it's not user error.

Is there any way of checking the SOH of individual packs? I've clearly got a major problem when over 19kWh of battery packs now take less than two hours to go from 20% to 100% via a 3kW inverter! Yes, pretty sure you should be able to see them in BatteryView. An overall SOH is transmitted over CAN ...

sent you a PM.

Stinsy wrote: ↑Sun Jan 26, 2025 7:51 pm BTW any link to an idiot’s guide to getting this set up and ideally accessible from HA would be much appreciated!

Not that I know of.

I incorporated it into my setup where I directly read the CAN messages from the batteries, alter them as required and then send them on to the inverter.

Victron have a thread on this where they have altered their algorithm to use the read max cell voltage in the pack and adjust the charge voltage down to keep any max cell voltage below 3.5v (recalling value from memory).

I now have incorporated this into my Teensy setup to do the same.

OV is overvolt and the pack will have shut down. HV is high voltage.

Best to download the log files for each. The OV pack will require repair for sure. The other may be fixable with a long slow charge to enable the balancer to bring things back to normal.

Looks as if their will be a bit of KH throttling.

Another possibility.