Introduction 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. HP Smart Adapters also feature integrated surge protection to protect against power fluctuations that can damage your notebook. HP Smart Adapters help you save on equipment, power consumption costs and travel weight. HP's new Smart adapters enable a new level of compatibility across the HP Business Notebook lineup providing a worry-free user experience. HP's Smart adapter option kits include a "legacy dongle" so that they are backwards compatible with older HP notebooks, providing an unprecedented level of commonality. Customers wanting one common AC adapter for all their HP Business Notebooks and docking stations can use the new HP 135W Smart AC adapter. The HP 90W Smart Auto Adapter enables you to power your HP Business Notebook in your car, and charge the internal battery simultaneously. The HP 65W AC/Auto/Air Combo Smart Adapter allows you to power and charge your notebook while in the office, at home, or in the car, and offers you the additional capability of powering your notebook on any airplane. The convenient "charging switch" allows you to toggle between charging and power-only voltage levels so you can charge your battery while in the office or in the car, and power while on an aircraft. Key Benefits - Provides a convenient and portable power source for use in a mobile environment; - 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; - 65-watt, 90-watt and 135-watt Smart AC adapter design enables optimum system performance; - Recharges notebook battery when attached to electrical outlet and/or automobile power charger (depending on model); - Compact design makes HP Smart Adapters an ideal travel companion.