Smart PC Power & Performance Management
The new laptops incorporate self-aware and adaptive technologies to sense where power is needed most to ensure priority components receive power for improved overall performance and battery life. Intel® Turbo Boost Technology 2.0 dynamically increases processor speed during performance intensive tasks such as video editing, data analysis and 3D applications. Lenovo Turbo Boost+ enables the laptops to stay in Turbo Boost even longer by keeping processor temperatures below required thermal limits. With reduced power to non-essential hardware, the laptops achieve up to 30 percent longer battery life while playing multimedia so users can watch DVDs, listen to MP3s or stream web content longer.

All-Day Battery Life
With its standard 9-cell battery, the ThinkPad T420 delivers up to 15 hours of battery life, while the T420s, delivers up to 10 hours with its 6-cell and optional optical bay battery combined. For extreme battery life needs, the ThinkPad T420, with its standard 9-cell battery and optional 9-cell slice battery, provides up to 30 hours of computing power. As the first business class laptops to feature NVIDIA® Optimus™ automatic graphic switching technology, T Series and W Series laptops provide 33 percent better battery performance over previous discrete graphics models.