Super Power Supply&reg; DC Laptop Car Adapter Charger Cord with USB charging port for HP Elitebook 2170p 2540p 2560p 2570p 2760p 6930p 8440p 8460p 8460w 8470p 8470w 8540p 8540w 8560p 8560w 8570p 8570w 8760w 8770w ; 65 Watt Netbook Notebook Battery Plug Output: 18.5V 3.5A 65W / Power laptop and charge battery from 12V DC outlets (car / air / boat) Warranty: 1 Year Super Power Supply are manufactured and tested to match or exceed OEM products. Trademarked by Super Power Supply. Sold exclusively by Super Power Supply