I received this charger for my Surface Pro 2 on July 22nd and it has been making a high pitched beep while charging my Surface since day one. I also had to keep the cord away from any other surface because it got hot. It's now day 44 and I've plugged my Surface into a charger and got nothing - no LED to show it's charging, no high-pitched beep like before, no overheating of the power cord. Nothing. I contacted Revain support and through them I was able to email the seller. The seller contacted me today and will send me a replacement.
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