HP offers a broad assortment of power solutions to help you get the most out of your HP Business Notebooks, including new Smart Adapters that are both energy efficient and convenient as they can be leveraged across multiple notebook families. Smart Adapters can enhance your productivity by powering your notebook while plugged in, as well as charging your battery so that you can take your notebook with you when you unplug. - 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).