... CE & FCC AC adapter18.5V 4.9A AC adaptor for HP Compaq pavilion ChargerSpecification:Input Voltage Range:100-240V 50-60Hz ... Current: 4.9AInterior diameter:1.7mmExternal diameter: 4.8mmCompatible laptop models:HP/COMPAQ P/N: 325112-001, 324816-003, 324816-002 ... 283884-001, 286755-001, 287515-001, ACCOM-C16, 432309-001Compatible Laptop Models: Compaq Presario 2100 Series :2100AP, 2100CA, 2100LA, 2100US, ...