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Black rectangular lithium-ion laptop battery pack

LXHY

LXHY L12S4K01 laptop battery 14.4V 48WH 2600mAh

SKU CH-3V10-P9W85

A 14.4 V 48 Wh lithium-ion battery compatible with Lenovo IdeaPad Z400, Z500, Z510, P400 and P500 series laptops

  • Battery typeLithium-Ion
  • Battery voltage rating14.4 V
  • Battery capacity2,600 mAh
  • Product colorBlack
  • Product typeBattery
  • Replaces original Lenovo batteries across Z400 Z500 Z510 P400 P500 series
  • Delivers 14.4V 48WH capacity for extended runtime
  • Lithium-ion 4-cell chemistry maintains stable output
  • Matches OEM part numbers L12S4E21 L12M4E21 L12M4K01
  • Brand-new condition ensures full rated performance

Compatible Lenovo IdeaPad Z400 Z500 P400 P500 Series

This 14.4V lithium-ion battery replaces part numbers L12S4E21 L12M4E21 L12M4K01 and 4INR19/65-1 in Lenovo Erazer Z400A Z500A and IdeaPad Z400 Z410 Z500 Z510 P400 P500 models including Touch variants. It restores mobile power for users whose original pack no longer holds a usable charge.

Four-cell 48WH pack fits existing bay no extra

The brick uses the same four-cell 48WH layout as the factory unit so it slides into the standard battery compartment without adapters cables or BIOS updates. It frees the owner from carrying an AC adapter for short sessions and leaves all expansion slots and drive bays untouched.

Steady output through long work sessions not just

Rated at 2600mAh the cell chemistry delivers consistent voltage across the discharge curve rather than a brief peak followed by rapid sag. This behaviour supports uninterrupted document editing video playback or light development workloads until the pack reaches its natural low-voltage cutoff.

How it compares

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

Price $16.99
Cheaper than about 78% of the 27,790 comparable items (median $30.99).

Specifications

Product
Model nameZ400
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating14.4 V
Battery capacity2,600 mAh

Questions about this item

How long does the 48 Wh capacity last before the battery needs recharging?

The 48 Wh rating means the pack can deliver 48 watts for one hour; actual run-time depends on the laptop's power draw and workload.

Does the lithium-ion pack run hot or make noise during all-day use?

Lithium-ion cells are silent and produce only modest warmth; the laptop's own cooling system manages any heat from the battery.

Which Lenovo model numbers must I already own for this L12S4K01 to fit?

It fits Lenovo Erazer Z400A and Z500A, IdeaPad Z400, Z400A, Z410, Z500, Z500A, Z510, P400 and P500 series, including Touch variants.

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