Lenovo ThinkPad X220 Review - Notebook Reviews by MobileTechReview
Just bought a quirky x220 slice battery. Looks exactly like a 19+, but says 20+. Works completely fine with 1% wear. Does anyone know what it might be? : r/thinkpad
65Wh 5800mAh 11,1 V 42T4967 42T4904 portátil batería Compatible para Lenovo ThinkPad rebanada X220 X220i X220s Tablet Series 19 +|Conectores y cables de ordenador| - AliExpress