PwrON is specializing in the production and economical replacement power supply for laptop,tablet,phones and other electrical appliances. Products manufactured with the 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 tipPlease 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 chargeKeep the adapter dry. Keep the battery pack away from fire. Keep it away from childrenDon't attempt to open, throw, hit or shake the adapter. Don't short-circuit it.Please contact us if you have further questions.We will be more than happy to assist you.