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Hands-on Review of the Lenovo ThinkPad X220 - Movies Games and Tech
Thinkpad Battery 44++ (9 Cell) | Lenovo US
facelessloser on Twitter: "Not surprising but adding a 9 cell battery to my thinkpad x220 made it quite a bit heavier. Hope its better battery life then my old aging battery #ThinkPadX220 #
Amazon.com: Lenovo ThinkPad 9 Cell Lithium Ion Battery 44++ ( Manufacturers P/N; 0A36307 ) 94Wh Extended Life System Battery For X220 And X230 Laptops Only : Electronics
Lenovo ThinkPad X220 really does get 20+ hours of battery life (sort of) - Liliputing