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Rectangular black laptop battery with label showing 11.4V 90Wh

PISKEKAT

PISKEKAT 77++ 11.4V 90Wh laptop battery for ThinkPad P50 P51 P52

SKU CH-A7EW-R3DV7

11.4 V, 90 Wh replacement battery fits ThinkPad P50, P51 and P52 series with Grade A cells and built-in circuit protection

  • Battery TypeLaptop Batteries
  • High 90Wh capacity powers ThinkPad P50 P51 P52 through long sessions
  • Grade A cells reduce leakage risk and keep output stable
  • Built-in circuit protection guards against overcharge and short circuits
  • 4V 7.9Ah specification matches original 77++ part numbers
  • Compatible with P50 P51 P52 series including 20EQ 20EN 20HH 20HJ 20M9 models

11.4V 90Wh Replacement Battery

This 11.4V 90Wh laptop battery replaces original Lenovo packs such as SB10H45077, SB10H45078, 00NY492, 00NY493 and 01AV477. It is built with Grade A cells and integrated circuit protection to reduce leakage risk and stabilise output. The unit is new and ready for installation in compatible ThinkPad mobile workstations.

Fits ThinkPad P50 P51 P52 Series

Designed for owners of ThinkPad P50, P51 and P52 series machines including sub-models 20EQ, 20EN, 20HH, 20HJ and 20M9 who need a direct replacement for a worn or failed battery. Buyers with other ThinkPad families or non-Lenovo laptops cannot use this pack because the connector and form factor are model-specific.

Deciding Specification — 11.4V 90Wh Capacity

The single figure that determines fit is the 11.4V 90Wh rating matched to part numbers such as 4X50K14091, 01AV495, 01AV496, SB10K97634, SB10K97635, SB10H45075 and SB10H45076. If your service manual lists a different voltage or watt-hour value this battery will not be compatible.

Highlights

  • High 90Wh capacity powers ThinkPad P50 P51 P52 through long sessions
  • Grade A cells reduce leakage risk and keep output stable
  • Built-in circuit protection guards against overcharge and short circuits
  • 4V 7.9Ah specification matches original 77++ part numbers
  • Compatible with P50 P51 P52 series including 20EQ 20EN 20HH 20HJ 20M9 models

Specifications

Battery TypeLaptop Batteries

Questions about this item

How do I install the 77++ battery in my ThinkPad P51 and what step do people often miss?

Insert the battery, ensure the interface is fully connected, discharge to 5%, charge to 95%, then repeat the cycle 3-4 times for proper calibration.

What maintenance will the 90Wh battery need later?

The built-in circuit protection and Grade A cells are designed to extend life; no user maintenance is required beyond normal charge cycles.

What limit appears first during sustained use of the 11.4V battery?

The battery will reach its 90Wh capacity limit, after which it must be recharged before further use.

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