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 manufacturing efficiencies. However, Lenovo had failed to meet a key objective of the merger: leveraging the combined strength of the two companies to grow volume and market share. In order to achieve success, Lenovo embraced diversify at multiple levels- business model, culture, and talent. By 2015, Lenovo grew into the world's number 1 PC maker, number 3 smartphone manufacturer and number 3 in the production of tablet computers. Lenovo sold its smartphone and tablet division in 2008 for in order to focus on personal computers and then paid to buy it back in November 2009. , the mobile division ranked