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Black rectangular lithium-ion laptop battery with label showing 90Wh 15.6V

Beisite

Beisite L23D4P70 L23C4P70 90Wh 15.6V laptop battery

SKU CH-7RD8-AMZK0

90 Wh 15.6 V lithium-ion replacement battery for ThinkPad P1 Gen 7 models

  • ColorBlack
  • TypeBattery
  • Compatibilityfor ThinkPad P1 Gen 7 / ThinkPad P1 Gen 7 21KV001SGE / Think
  • Battery TypeLithium-Ion
  • Battery Voltage15.6V
  • Battery Capacity90Wh
  • 90 Wh capacity delivers extended runtime for demanding workloads
  • 6 V lithium-ion chemistry matches original power specifications
  • Direct replacement for part numbers 41CP4/56/139, 5B11M37552, 5B11M37553, SB11M37548, SB11M37549
  • Fits ThinkPad P1 Gen 7 models including 21KV001SGE and 21KWS3JN00
  • New condition with 12 month manufacturer warranty

Direct replacement for ThinkPad P1 Gen 7

This 90Wh lithium-ion battery matches the original 15.6V specification for ThinkPad P1 Gen 7 models including 21KV001SGE and 21KWS3JN00. It replaces part numbers L23C4P70, L23D4P70, 5B11M37552, 5B11M37553, SB11M37548, SB11M37549 and 41CP4/56/139. The black unit ships new and ready to install.

Steady 90Wh output through a full workday

The lithium-ion chemistry maintains consistent voltage across extended sessions, avoiding the sharp drop-off seen in aged cells. At 15.6V the pack delivers the same power envelope the laptop expects, so heavy compiles or rendering jobs run without unexpected throttling. Capacity remains stable over repeated charge cycles.

OEM-fit connectors and black chassis

The battery housing aligns with the ThinkPad P1 Gen 7 battery bay using the factory connector layout, so no adapters or cable routing are required. A black finish matches the original aesthetic. The package includes one battery; builders needing a second hot-swap pack or a different voltage platform will need a separate solution.

Highlights

  • 90 Wh capacity delivers extended runtime for demanding workloads
  • 6 V lithium-ion chemistry matches original power specifications
  • Direct replacement for part numbers 41CP4/56/139, 5B11M37552, 5B11M37553, SB11M37548, SB11M37549
  • Fits ThinkPad P1 Gen 7 models including 21KV001SGE and 21KWS3JN00
  • New condition with 12 month manufacturer warranty

Specifications

BrandL23D4P70 L23C4P70
ModelL23D4P70 L23C4P70
Part Number41CP4/56/139
ColorBlack
TypeBattery
Compatibilityfor ThinkPad P1 Gen 7 / ThinkPad P1 Gen 7 21KV001SGE / ThinkPad P1 Gen 7 21KWS3JN00 Series
Battery TypeLithium-Ion
Battery Voltage15.6V
Battery Capacity90Wh

Questions about this item

How much heat does the 90Wh 15.6V battery generate during continuous daily use?

Lithium-ion cells produce minimal heat under normal load; the pack stays close to chassis temperature during typical work sessions.

Does the battery require a proprietary Lenovo charger or will any 15.6V source charge it?

It charges through the laptop's standard USB-C or Slim Tip power input using the original ThinkPad P1 Gen 7 adapter.

Will the 41CP4/56/139 pack fit a ThinkPad P1 Gen 7 21KV001SGE that currently runs an older L23C4P70 unit?

Yes, L23C4P70 and L23D4P70 are cross-compatible and both replace part numbers 5B11M37552, 5B11M37553, SB11M37548, SB11M37549.

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