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Black rectangular laptop battery with connector plug

BFKK

BFKK L20M4P72 57Wh 15.36V laptop battery for Lenovo ThinkPad T14s 2nd Gen 2021

SKU CH-KPBA-58CEW MPN L20M4P72

57 Wh, 15.36 V lithium-ion replacement battery for Lenovo ThinkPad T14s 2nd Gen 2021 models

  • 57Wh capacity powers extended work sessions
  • 36V output matches original specifications
  • Compatible with ThinkPad T14s 2nd Gen 2021
  • Replaces multiple OEM part numbers
  • Plug & Play Li-ion battery installs easily

Replacement battery for ThinkPad T14s 2nd Gen 2021

This 15.36V 57Wh lithium-ion pack replaces part numbers L20M4P72, SB10W51915 and 5B10W51814. It fits the Lenovo ThinkPad T14s second-generation 2021 series and matches the original form factor for direct installation. The unit is new and ready for immediate use.

Li-ion chemistry and fixed voltage set

A 15.36V lithium-ion cell cannot be charged beyond its rated voltage and will not power systems that require a different voltage rail. Capacity is stated as 57Wh or 3711mAh; actual runtime varies with workload, screen brightness and power-management settings. No adapter or converter is included.

Match the original part number before ordering

The battery replaces L20M4P72, SB10W51915, 5B10W51814, L20L4P72, SB10W51914, 5B10W13976, L20C4P72, SB10W51916, 5B10W51815, L20D4P72, SB10W51917 and 5B10W51816. Buyers who cannot confirm the exact part number on their existing battery should not purchase this unit.

Highlights

  • 57Wh capacity powers extended work sessions
  • 36V output matches original specifications
  • Compatible with ThinkPad T14s 2nd Gen 2021
  • Replaces multiple OEM part numbers
  • Plug & Play Li-ion battery installs easily

Specifications

No published specifications for this item yet.

Questions about this item

Should I choose the L20M4P72 or one of the other part numbers listed?

Match the part number printed on your original battery — L20M4P72, L20L4P72, L20C4P72 or L20D4P72 — to ensure correct fit for your ThinkPad T14s 2nd Gen 2021.

What runtime can I expect from the 57Wh capacity?

The 57Wh 3711mAh rating restores the factory capacity for the ThinkPad T14s 2nd Gen 2021, giving the same battery life the laptop had when new.

Does the 15.36V voltage match my laptop's charging circuit?

Yes, 15.36V is the exact voltage specified for the ThinkPad T14s 2nd Gen 2021 series, so the battery communicates correctly with the system power management.

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