Lenovo unloads 24-hour ThinkPads T420 and T520

Users needing all-day laptops with really nostalgic retro styling should check out the new workhorses from Lenovo. The ThinkPad T420 and T520 can grind out 24-hours of battery when coupled with a 9 Cell battery. More than enough juice for touring executives. These are user-configurable laptops that feature Intel’s latest generation Core processors (codenamed Sandy Bridge).