2019 Ram 2500 — second battery versus portable power station

Write down what you already tried. A second data point from another 2019 Ram 2500 owner helps more than a generic diagnosis. I'd do that before spending real money. Have you gotten a second quote in writing? Might be overthinking it, but I'd rather overthink than overspend.

I'd keep this practical. Verify the cheap/easy branch on the 2019 Ram 2500 before a big repair or a big spend. Then you'll know the next fork. That's the whole play. Your commute and mine probably aren't the same, but the test still applies. This is me being the wet blanket on purpose.