... supply steady power for your laptop.Note: If there is no central pin in the connector of your original AC adapter ... months warranty Compatible with HP/Compaq Adapter Model Number: N18152,384019-001,PPP009L,391172-001, ED494AA#ABA, 384019-001, PPP009H,381090-001 ... 18.5V 3 ... .5A AC Adapter with UK Power Cord for HP ...