9cell X230 Original Battery for Lenovo Thinkpad 0A36307 42T4940 0A36281 45N1023 | eBay
X230 6-cell battery re-celling considerations, 30+ and 44+ battery info [includes pictures] - Thinkpads Forum
Need help buying replacement battery for X230 : r/thinkpad
X230 New Laptop battery for Lenovo ThinkPad 9 Cell Lithium Ion Battery 44++ 94Wh Extended Life System Battery For X220 And X230|Laptop Batteries| - AliExpress