Lenovo:ThinkPad X220 Series,ThinkPad X220i Series,ThinkPad X220s Series. This battery is for standard screen,not fit ThinkPad X220 Tablet(wide screen),ThinkPad X220i Tablet(wide screen). Lenovo:0A36281,0A36282,0A36283,42T4861,42T4862,42T4863,42T4865,42T4866,42T4867,42T4875,42T4876,42T4901,42T4902,42Y4864.
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