Original Dead on Arrival, Replacement Worked

Packaging showed signs of being previously open: tape on original box was already cut open and the box was in a loose heat sealed plastic bag. The battery fuse blew the instant the battery was connected. Checked the resistance across the battery terminals on the charge controller and found that it was about 0.1 ohm (pretty much a dead short). I requested a replacement from Amazon; the replacement worked as expected.

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