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BattPit: Laptop Battery Replacement for Lenovo ThinkPad X1 Carbon 4th Gen 20FB004JUS, 00HW028, 00HW029, 01AV439 (15.2V 3530mAh 56Wh) - Newegg.com
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Lenovo ThinkPad X1 Carbon Gen2 / Gen3 CMOS Battery Replacement, Computers & Tech, Parts & Accessories, Computer Parts on Carousell
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