What Battery Fits Lenovo ThinkPad X1 Carbon Gen 9?
Quick answer
Our data matches the Lenovo ThinkPad X1 Carbon Gen 9 with 4-Cell 57Wh, part L20M4P71 (15.36V, 3695mAh, Li-ion).
Before buying, confirm the battery part number, voltage, connector, and device model shown on your original battery or device label. Live eBay listings are shown below and may change.
Compatible Replacement Batteries
Listings and prices are pulled from eBay and may change. Always verify compatibility before purchase. Last checked Jun 17, 2026.
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Frequently Asked Questions
What battery fits the Lenovo ThinkPad X1 Carbon Gen 9?
Based on our compatibility data, the Lenovo ThinkPad X1 Carbon Gen 9 is associated with 4-Cell 57Wh (L20M4P71), exact match. Always confirm your device model number and the part number on your original battery before purchasing.
How do I verify compatibility before buying?
Check that your device label or manual shows X1 Carbon Gen 9 (or ThinkPad X1 Carbon Gen 9). Compare the OEM part number, voltage, and connector on your original battery with the specs listed on this page before ordering.
Where do the listings on this page come from?
Current eBay listings for compatible batteries are shown below. Prices and availability change frequently on eBay — verify the listing details before you buy.