On both my XPT and General the battery begins to run down in a week or so. Is this normal? I first thought it was the LED in my dual USB plug but I took a drill and drilled it until it went out!
After a week or so the voltage will be down to 12.5V. A fully charged battery should be around 12.7V I believe. This is measured with the voltmeter in the dash not my Fluke meter- I haven’t gotten it out yet to compare

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