45N1110 battery for Lenovo ThinkPad x240 x250 x260 x270 X230s S440 S540 T440S US | eBay
Lenovo ThinkPad X240 Disassembly | MyFixGuide.com
Amazon.com: Lenovo ThinkPad X240 12.5-inch Business Laptop, Intel Core i7-4600U up to 3.3GHz, 8G DDR3L, 500G, WiFi, VGA, Mini DP, USB 3.0, Win 10 64 Bit Multi-Language Support (Renewed) : Electronics