The Dell GM456 adapter's output current can not be less than the computer's rated input current. Otherwise, the adapter will be overloaded and become very hot and burned. However, adapter with high output current can work well with the computer as long as the output voltage is correct.Replacement For Dell GM456 Adapter is rated at 19.5V 2.31A 45W.The high quality laptop charger for dell gm456 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!The Adapter is a 45W rated power supply and replaces dell gm456 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.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.