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Black rectangular lithium-ion laptop battery, 70Wh 7.74V

Beisite

Beisite L23B4PF2 L23C4PF2 L23D4PF2 L23L4PF2 L23M4PF2 70Wh laptop battery

SKU CH-3CZ8-T61D0

70Wh lithium-ion replacement battery for Lenovo Yoga Air 14S, 15 and Slim 7 Gen 9 2024 models

  • Battery typeLithium-Ion
  • Battery voltage rating7.74 V
  • Battery capacity70 Wh
  • Product colorBlack
  • Product typeBattery
  • Compatible withFor Yoga Air 14S 15 Slim7 Gen 9 2024
  • 70 Wh capacity supports long work sessions
  • 74 V lithium-ion chemistry matches original specifications
  • Compatible with Lenovo Yoga Air 14S and Slim 7 Gen 9 2024 models
  • Replaces part numbers 5B11N42049, 5B11N42051, SB11N42050, SB11N42052
  • New battery supplied in black finish

Replacement battery for Yoga Air 14S

This 70Wh lithium-ion unit replaces the original Lenovo part numbers L23B4PF2, L23C4PF2, L23D4PF2, L23L4PF2 and L23M4PF2. It matches the 7.74V specification and fits the 2024 Yoga Air 14S 15 and Slim 7 Gen 9 model ranges. The black finish aligns with the factory appearance.

Drop-in fit for listed 83ED series laptops

No adapter or cable modification is required; the battery connects to the existing motherboard header. It frees the notebook from reliance on wall power and restores full mobile operation. Compatible part numbers 5B11N42049, 5B11N42051, SB11N42050 and SB11N42052 are all covered by this single SKU.

70Wh capacity for typical workday runtime

The cell delivers the rated 70Wh at 7.74V, supporting several hours of office tasks, browsing or video playback on a full charge. Runtime shortens under sustained high-load workloads such as rendering or gaming. It is not suited for users needing extended multi-day autonomy without recharging.

How it compares

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

Price $52.99
Pricier than about 84% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameL23B4PF2 L23C4PF2 L23D4PF2 L23L4PF2 L23M4PF2
Model nameL23B4PF2 L23C4PF2 L23D4PF2 L23L4PF2 L23M4PF2
Part number5B11N42049, 5B11N42051, SB11N42050, SB11N42052
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating7.74 V
Battery capacity70 Wh
Compatibility
Compatible withFor Yoga Air 14S 15 Slim7 Gen 9 2024

Questions about this item

How long does the 70Wh capacity last under continuous load?

The 70Wh lithium-ion cell stores 7.74V of energy; actual runtime depends on the laptop's power draw and workload.

Does the battery run hot or make noise during all-day use?

Lithium-ion batteries operate silently and generate minimal heat; the laptop's own cooling system manages system temperature.

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

It fits Lenovo Yoga Air 14S 15 2024 and Yoga Slim 7 Gen 9 2024 series laptops with part numbers 5B11N42049, 5B11N42051, SB11N42050 or SB11N42052.

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