ThinkPad T series T420s, and the T520, have been lauded for their battery life – up to 30 hours with a 9-cell battery slice. ThinkPad T series The ThinkPad T series is a line of laptop computers introduced by IBM in 2000. After the transfer of the consumer computer division in 2005, they were developed and marketed by Chinese technology company Lenovo. IBM introduced the T series as part of their ThinkPad brand in 2000. The laptop was meant to cater to users working with multiple networks and in different environments. This resulted in the development of the IBM Embedded Security Subsystem. From
Lenovo design was a support package aimed at small businesses. The focus of this support package was to provide small businesses with software tools to ease the process of server management and reduce dependence on IT support. Lenovo ThinkStations are workstations designed for high-end computing. In 2008, Lenovo expanded the focus of its THINK brand to include workstations, with the ThinkStation S10 being the first model released. High-end monitors are marketed under the ThinkVision name. ThinkVision displays share a common design language with other THINK devices such as the ThinkPad line of notebook computers and ThinkCentre desktops. At the 2014 International