Zachary, just plugged in my mini that was showing half full. Charging current is reading 420 (insert joke) mA. I remember that it drops perhaps to 100mA or so as it nears full charge. You shouldn’t have any issue. When it the field I usually charge it some after it hits 25% so I’m sure of sufficient power should it be called into use. The only device I’ve ever had trouble charging from a portable charger is a fitbit. If it was nearly empty I could eventually get it to charge to at least 50% by pressing the usb charger button repeatedly for a couple minutes.
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