Dobrý den. Powerbanka Viking VIDAR III má dle popisu konektory DC in a DC out. Když ji nabíjím solárním panelem přes DC in a přestane se nabíjet tak se vstup chybně přepne na out a powerbanka se vybíjí do solárního panelu. Jak je možné že se vstup označený jako in přepne na out?
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