Let me pose some simpler questions to narrow this down, if anyone is still around
Two things that have me stumped are that I've never seen charging indicated on battery tub #2, and that the two strings in #2 have been showing as very low SOC percentages this whole time, even though the pack voltages are quite high.
Has anyone ever seen "Charger 2" on this screen to be active? From what I've read, the truck has two chargers, but they are both contained inside the single charger box. I'm not sure if this app considers that to all be "Charger 1", or if there is indeed a Charger 2 and it is inactive for some reason. The circuit breaker box shows a green light for Charger 02 so I'm not sure what else the issue could be:
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As shown below, the SOC levels on SBS3 and SBS4 are 5% and 20% respectively, yet the minimum/average cell voltages are plenty high because I jumped the packs. What dictates the SOC? Is the battery management system storing some colomb-counting values in memory, so that it becomes confused if I manually jump a pack? That's my best guess:
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