PwrON is specializing in the production of high quality and economical replacement power supply for laptop,tablet,phones and other electrical appliances. Products manufactured with the highest quality materials and include multiple smart features safeguarding against IV - incorrect voltage, SC - short circuit, IO - internal overheating . Chargers are certificated with CE FCC etc.Warm tip▲Please make sure the DC output and tip size of ac adapter are accordant before you order.▲Ensure charging platforms and devices are not overheating, such as overheating, please cut off the power supply, to cool before attempting to charge▲Keep the adapter dry. Keep the battery pack away from fire. Keep it away from children▲Don't attempt to open, throw, hit or shake the adapter. Don't short-circuit it.▲Please feel free to contact us if you have further questions.We will be more than happy to assist you.