Lenovo ThinkPad 9 Cell Lithium Ion Battery 44++ ( Manufacturers P/N; 0A36307 ) 94Wh Extended Life System Battery For X220 And X230 Laptops Only : Electronics - Amazon.com
Mitsuru Original Laptop Battery for Lenovo ThinkPad X220 Tablet, X220T, X230 Tablet, X230T Series - 4400mAh : Amazon.co.uk: Computers & Accessories
Order Battery Lenovo ThinkPad X230T X220T X230 0A36317 45N1079 45N1077 45N1074 45N1075 45N1078 45N1177 Laptop Battery for special $40.40 at UPLCD Official Store
Recommended X230t batteries : r/thinkpad
Laptop Battery For Lenovo ThinkPad X220 X230 Tablet Series | Shopee Philippines
45N1079 Original Laptop Battery For Lenovo ThinkPad X230T X220T X230 Tablet 0A36317 45N1077 45N1074 45N1075 45N1078 45N1076|Laptop Batteries| - AliExpress
$40 and some elbow grease and my x230t now has better battery life than new. : r/thinkpad