So I purchased a Victron 75/15 bluetooth mppt off Ebay. Seller stated it was new but had clearly been repacked in old (original) packaging and wrapped in bubble wrap. Few scratches that suggest use or constant rubbing in bad packaging over a period of time or possibly second hand? Purchased with 20% discount code on Ebay and seller offering a further $15 off rather than post it back or else a new one. Main concern for me are these crystals that I can see if I look into the underside of it - I don't know what they are, they appear like salt but are bigger and don't appear to dissolve. Are these a major concern and could they damage the unit?
Thanks!
Thanks!
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