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Black rectangular laptop battery with connector strip

GreenTechLLC

GreenTechLLC 5B11M37552 90Wh laptop battery for Lenovo ThinkPad P1 Gen 7

SKU CH-6NJ4-EEG6Q

A 90 Wh, 15.6 V lithium-ion replacement battery with four cells for Lenovo ThinkPad P1 Gen 7 models

  • Battery type4 Cell Lithium-Ion
  • Battery voltage rating15.6 V
  • Battery capacity5770mah
  • Measurements12 × 3.25 × 0.5 in
  • Product colorBlack
  • Product typeBattery
  • 90 Wh capacity powers extended work sessions
  • 6 V lithium-ion chemistry delivers stable output
  • Four-cell design fits original ThinkPad P1 Gen 7 chassis
  • Replaces six OEM part numbers for direct compatibility
  • CE, FCC and RoHS certified for safe operation

90Wh replacement battery for ThinkPad P1 Gen 7

This new 4-cell lithium-ion battery from GreenTechLLC replaces the original Lenovo packs for ThinkPad P1 Gen 7 models including 21KV and 21KW series. It delivers 15.6V and 5770mAh capacity in a black housing measuring 12 x 3.25 x 0.5 inches. The unit weighs 0.95 lb and carries CE, FCC and RoHS safety certifications.

Capacity and voltage match

The single specification that decides fit is the 90Wh rating combined with 15.6V output, matching the OEM part numbers 5B11M37552, 5B11M37553, L23C4P70, L23D4P70, SB11M37548 and SB11M37549. If your service manual lists a different watt-hour value or voltage, this battery will not be compatible.

Straightforward swap with common pitfalls

Installation requires removing the bottom case screws, disconnecting the old pack and connecting the new one; most users complete it in minutes with a small Phillips driver. The usual issues are forgetting to disable the internal battery in BIOS before opening the chassis and not seating the connector fully, which causes the system to not recognise the replacement. Buyers needing a higher-capacity pack or a different form factor should look elsewhere.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $67.99
Pricier than about 90% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameGreenTech
Model name5B11M37552, 5B11M37553, L23C4P70, L23D4P70, SB11M37548, SB11M37549
Part numberGTS-5B11M37552-90 W
Product colorBlack
Product typeBattery
Power
Battery type4 Cell Lithium-Ion
Battery voltage rating15.6 V
Battery capacity5770mah
Size & build
Measurements12 × 3.25 × 0.5 in
Product weight0.95 lb (0.43 kg)
Compatibility
Compatible withLENOVO THINKPAD P1 GEN 7, THINKPAD P1 GEN 7 21KV, THINKPAD P1 GEN 7 21KW, 21KV001FAU, 21KVCTO1WW, 21KWCTO1WW, 21KWS2XB00, 21KWS3CP00, 21KWS4CM00, 21KWS4Y92S, 21KWS5C300

Questions about this item

How long will the 90 Wh rating actually run a ThinkPad P1 Gen 7 under typical workloads?

The 90 Wh capacity matches the original specification; real-world runtime depends on screen brightness, CPU load and power-profile settings rather than the battery alone.

Does the 15.6 V output match the laptop's charging circuit without limiting charge speed?

Yes, 15.6 V is the factory voltage for this model, so the system charges at its normal rate.

Will the 12 x 3.25 x 0.5 inch case fit the internal battery bay without modification?

Those dimensions correspond to the OEM 4-cell pack, so the battery seats directly in the existing bay.

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