Provides a convenient and portable power source for use in a mobile environment and helps you save on equipment, power consumption costs and travel. Shared across all HP Business Notebooks for a convenient, worry-free experience. Energy-efficient power adapters designed to draw minimal power. Integrated surge protector to guard against power fluctuations. Recharges notebook battery when attached to electrical outlet and/or automobile power charger (depending on model) HP 90W Smart AC Adapter Size: 4.92 x 1.97 x 1.18 in.