Short trip battery charging issues with Smart Alternator

Nope, nothing for 2018-19 Outbacks, they came with the revised charging logic. You’ll have to disconnect the signal wire, or keep your headlights on, if you’re often finding the battery in a reduced SoC. You might also consider a battery tender.

There’s a head unit service mode that will display voltage (while driving) on the 2015-17 Outbacks but I’m not sure about the 18-19s since they have a different HU. They do have a similar mode – instructions here:

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