This morning the factory battery finally gave up the ghost at just under 51,000 miles and almost 8 years. It had been cranking slowly for the past week or so, so I'm glad it decided to die in the garage.
I replaced it with a Walmart H6 AGM battery and an Aliexpress cloth battery cover for the bigger size (replacing an H5). I've only had the cover for 4 years - I didn't at all expect the original battery to last this long!
And yes, I did the coding for the new battery using OBDeleven, especially since it was a different type.
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