Welcome to replacement laptop AC power adapters online store.Replacement Dell Laptop AC Adapters and Power Supply for Notebook Computers.Replacement laptop AC adapter is guaranteed to meet or exceed original Dell laptop AC adapter.Full 2 hours burning test; 3 times quality check and 2 times drop test by QC before package.Warranty and Guarantee: 1 year warranty, 60 days money back.Replacement For Dell Precision M6400 Adapter is rated at 19.5V 7.7A 150W.The high quality laptop charger for dell precision m6400 provides your laptop with safe and reliable power.It is over Charge protection, Voltage protection, Temperature protection, Short circuit protection, enjoys 1-Year Warranty,60-Day Money Back!Brand New Replacement For 150W 19.5V 7.7A Dell Precision M6400 AC Adapter/Power Supply/Charger With Laptop Cord.The Adapter is a 150W rated power supply and replaces dell precision m6400 laptop charger. Designed to meet Dell's original specifications. The Replacement Dell AC Adapter is designed to be 100% manufacturer compatible and will meet OEM specifications.Always put first the DC output plug into the laptop's power jack before putting the input plug on the power outlet. This is the correct method.Keep your adapter in a dry place with room temperature. Just like other electronic devices, adapter can get damage cause by high temperature.Avoid the metal tip of the adapter from getting in contact with other metal objects because it can cause short-circuiting. Your laptop might get damage when a short-circuited charger is used.