Pro Power reserve limit fails

[TaxmanHog]

But, still, the 12v battery could be the problem. Research is continuing! Thanks for your thoughts.

The DC/DC converter should be maintaining the LVB {12v} normally in full run mode.

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[chl]

The DC/DC converter should be maintaining the LVB {12v} normally in full run mode.

Yes, it should, but...when the current draw is high-ish, it still needs the battery...which is basically why shot-trip driving drains batteries over time even in ICE vehicles.

My last experiment seems to suggest that the power down timer kicked in with the truck ON after I switched from PPOB with truck OFF to truck powered ON - the PPOB quit after 30 minutes.

Whenever I have the 240V 30A outlet in use, the power down timer always defaults to OFF without my intervention which I always confirm by looking at the truck menu screen.

I can turn the power down timer back ON from there if I want to, but that would be dumb since when using the PPOB I set a reserve limit already which defaults to 10 miles so I don't want the power down timer to kick in and override the reserve.

So my guess is that the OTA update in question 'glitched' the power down timer control.

IMHO the reserve setting should override any power down timer anyway, not the other way around.