14.8V, 3000mAh, Li-Polymer Battery fits Lenovo, 20a7, 20a8, 44.4WhBattery Fits Models: 20a7, 20a8, Carbon X1 I7 4600, Thinkpad New X1 Carbon 20bta01, Thinkpad New X1 Carbon 20bta01, Thinkpad New X1 Carbon 20bta06, Thinkpad New X1 Carbon 20bta06, Thinkpad New X1 Carbon 20bta06, Thinkpad New X1 Carbon 20bta06, Thinkpad New X1 Carbon 20bta07, Thinkpad New X1 Carbon 20bta07, Thinkpad New X1 Carbon 20bta0a, Thinkpad New X1 Carbon 20bta0a, Thinkpad New X1 Carbon 20bta0f, Thinkpad New X1 Carbon 20bta0f, Thinkpad New X1