We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular 6 cell lithium ion laptop battery

NShi

NShi 00NY493 90WHR 11.25V 8000MAH 6 cell laptop battery

SKU CH-FX9Q-1GQP5

Replaces Lenovo ThinkPad P50, P51 and P52 batteries with a 6-cell 90 Wh lithium-ion unit rated at 11.25 V and 8000 mAh

  • Battery type6 Cell Lithium-Ion
  • Battery voltage rating11.25 V
  • Battery capacity8000MAH
  • Product colorBlack
  • Product typeBattery
  • Compatible withLENOVO P50, P51, P52, P50 20EN, P50 20EQ, P51 20HH, P51 20HJ
  • 90 Wh capacity extends work sessions away from power
  • 8000 mAh at 11.25 V matches original ThinkPad P50, P51, P52 specifications
  • Six lithium-ion cells deliver stable current with low self-discharge
  • Replaces fourteen OEM part numbers including 00NY493 and 4X50K14091
  • CE, FCC and RoHS certified for electrical safety

What this battery replaces

This GreenTech 6-cell lithium-ion unit replaces OEM part numbers including 00NY492, 00NY493, 01AV477, 01AV495, 01AV496, 4X50K14091 and the 77+ series. It matches the original 11.25V and 90WHR rating so runtime returns to factory specification. The upgrade is worth it when your current pack no longer holds a charge or reports a service warning.

Compatible ThinkPad models

The battery fits Lenovo ThinkPad P50, P51 and P52 families including sub-models 20EN, 20EQ, 20HH, 20HJ, 20MM, 20MN, 20M9 and 20MA. It is not for users who need a higher-capacity pack beyond 8000mAh or a different voltage. Buyers with other ThinkPad series or non-Lenovo laptops cannot use this unit.

Check before ordering

Verify the part number on your existing battery against the replacement list above. Confirm your laptop model appears in the supported P50, P51 or P52 variants. Ensure the battery bay accepts a 6-cell form factor and that the 11.25V output matches the original specification.

How it compares

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

Price $58.99
Pricier than about 88% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameGreenTech
Model name00NY492, 00NY493, 01AV477, 01AV495, 01AV496, 4 × 50K14091, 5B10W13951, 5B10W13952, 77+, L17L6P51, L17M6P51, SB10H45077, SB10H45078, SB10K97634, SB10T83195
Part number00NY492, 00NY493, 01AV477, 01AV495, 01AV496, 4 × 50K14091, 5B10W13951, 5B10W13952, 77+, L17L6P51, L17M6P51, SB10H45077, SB10H45078, SB10K97634, SB10T83195
Product colorBlack
Product typeBattery
Power
Battery type6 Cell Lithium-Ion
Battery voltage rating11.25 V
Battery capacity8000MAH
Compatibility
Compatible withLENOVO P50, P51, P52, P50 20EN, P50 20EQ, P51 20HH, P51 20HJ, P51 20MM, P51 20MN, P52 20M9, P52 20MA

Questions about this item

Will the 6-cell 90WHR pack sit flush in the ThinkPad P52 20M9 battery bay?

Yes, the 11.25V 8000mAh unit matches the original 00NY493 form factor for P50, P51 and P52 chassis.

What is the common mistake when fitting the L17L6P51 replacement?

Forgetting to slide the locking latch fully home after inserting the battery; the pack will appear seated but lose contact under vibration.

How often should the 6-cell lithium-ion be recalibrated to keep the fuel gauge accurate?

Run a full charge–discharge–charge cycle every 30–40 partial cycles or when the reported capacity drifts noticeably.

More in Laptop Chargers & Batteries

Similar items