Based on this product's specifications, here are some alternatives and similar models
Battery Lenovo ThinkPad X1 Carbon 20A7 20A8 CoreParts MBXLE-BA0169
Summary description:
The CoreParts MBXLE-BA0169 battery is designed for Lenovo ThinkPad X1 Carbon models 20A7 and 20A8. It offers reliable performance, ensuring your laptop runs smoothly. With a high capacity, this battery provides extended usage time, making it ideal for professionals on the go. Easy to install, it is a perfect replacement for your old battery, enhancing your laptop's portability and efficiency.