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Black rectangular lithium-ion laptop battery pack

KingSener

KingSener L20D4P71 57WH laptop battery for ThinkPad X1 Carbon Gen 9 10 Yoga Gen 6 7

SKU CH-8ZSR-GY5NX MPN L20D4P71

57 Wh lithium-ion replacement battery for ThinkPad X1 Carbon Gen 9, Gen 10 and Yoga Gen 6, Gen 7

  • Battery Voltage15.44V
  • Battery Capacity3695mAh/57WH
  • 57WH capacity extends runtime between charges
  • 44V voltage matches original specification exactly
  • Replaces part numbers SB10T83215 through SB10T83218
  • Fits X1 Carbon Gen 9 10 and Yoga Gen 6 7
  • Li-ion cells deliver reliable daily power

57 Wh replacement battery for ThinkPad X1

This KingSener L20D4P71 lithium-ion pack delivers 57 Wh at 15.44 V and is built as a direct replacement for the original Lenovo part. It targets owners of ThinkPad X1 Carbon Gen 9, Gen 10 and X1 Yoga Gen 6, Gen 7 who need to restore full mobile runtime. The cell carries a one-year warranty and ships in new condition.

Verify the exact part number before ordering

Lenovo uses several close part codes for these ultrabooks including SB10T83215, SB10T83216, SB10T83217, SB10T83218 and the 5B10W13972 through 5B10W13975 series. Cross-reference the label on your existing battery or the service manual to confirm the match. The pack will not fit other ThinkPad families or earlier X1 generations.

Drops into the internal battery bay without adapters

The brick-shaped cell uses the factory connector and screw points so installation only requires a screwdriver and the standard service procedure. Once fitted it frees the user from tethered desk power and restores the thin-and-light mobility the X1 Carbon and X1 Yoga are designed for. No extra cables, caddies or firmware updates are needed.

Highlights

  • 57WH capacity extends runtime between charges
  • 44V voltage matches original specification exactly
  • Replaces part numbers SB10T83215 through SB10T83218
  • Fits X1 Carbon Gen 9 10 and Yoga Gen 6 7
  • Li-ion cells deliver reliable daily power

Specifications

BrandKingSener
ModelL20D4P71 L20M4P71
Part NumberL20M4P71 SB10T83216 5B10W13973
L20C4P71 SB10T83217 5B10W13974
L20D4P71 SB10T83218 5B10W13975
L20L4P71 SB10T83215 5B10W13972
Battery Voltage15.44V
Battery Capacity3695mAh/57WH

Questions about this item

Does the KingSener L20D4P71 package include any installation tools or only the battery itself?

The box contains the 57WH 15.44V Li-ion replacement battery only; no screwdrivers, pry tools or adhesive strips are supplied.

My ThinkPad X1 Carbon Gen 10 lists part numbers SB10T83218 and 5B10W13975 — is the L20D4P71 the correct match?

Yes. L20D4P71 cross-references directly to SB10T83218 and 5B10W13975, so it fits Gen 10 Carbon and Gen 7 Yoga models.

What does the 57WH rating mean for daily runtime on an X1 Carbon Gen 9?

The 3695mAh 57WH cell restores the original capacity spec, giving roughly the same screen-on time as the factory battery when new.

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