PC World - The Asus U46SV all-purpose laptop sets itself apart from the crowd through great performance and outstanding battery life--two attributes that rarely cohabitate. The primary reason for the long 6-hour, 41-minute run time is an unusually large 74-watt-hour battery. The large battery is also responsible for the U46SV's hefty 4.9-pound static and 6-pound travel (with AC adapter) weights, but clever design makes the unit feel lighter than those numbers might lead you to believe.