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Black rectangular lithium-ion laptop battery with label showing 45Wh 11.52V

Beisite

Beisite L18C3PF1 L18M3PF1 45Wh 11.52V laptop battery for Lenovo IdeaPad L340-15IRH L340-17IRH

SKU CH-VNXJ-BJAW2

45 Wh lithium-ion replacement battery for Lenovo IdeaPad L340-15IRH and L340-17IRH models

  • ColorBlack
  • TypeBattery
  • CompatibilityFor IdeaPad L340-15IRH L340-17IRH Gaming Laptop
  • Battery TypeLithium-Ion
  • Battery Voltage11.52V / 11.4V
  • Battery Capacity45Wh
  • Replaces multiple Lenovo part numbers including SB10W67243 and 5B10T04975
  • Fits IdeaPad L340-15IRH and L340-17IRH models for direct compatibility
  • 45Wh lithium-ion capacity restores original runtime for daily use
  • 52V voltage matches factory specification for safe operation
  • Brand new condition ensures full performance from first charge

Compatible replacement battery

This 45Wh lithium-ion battery replaces the original L18C3PF1 or L18M3PF1 packs in Lenovo IdeaPad L340-15IRH and L340-17IRH models. It matches the 11.52V or 11.4V specification and fits both 15-inch and 17-inch gaming variants. The black casing aligns with the factory design. Buyers needing a higher-capacity pack for longer unplugged sessions should look elsewhere.

Thermals and power behaviour

The cell chemistry operates at standard laptop voltages and draws power within the original thermal envelope. No additional cooling or fan changes are required during normal charging and discharge cycles. Acoustic output remains unchanged because the battery has no moving parts. Systems that demand sustained loads beyond the original design limits may still throttle.

Included hardware and fitment

The package contains one battery unit and no tools, screws or software. Installation uses the existing latch and connector on the IdeaPad chassis. The supplier notes that either voltage variant will be shipped depending on stock, and both are electrically compatible. Owners of other Lenovo series should verify the part number before ordering.

Highlights

  • Replaces multiple Lenovo part numbers including SB10W67243 and 5B10T04975
  • Fits IdeaPad L340-15IRH and L340-17IRH models for direct compatibility
  • 45Wh lithium-ion capacity restores original runtime for daily use
  • 52V voltage matches factory specification for safe operation
  • Brand new condition ensures full performance from first charge

Specifications

BrandL18C3PF1 L18M3PF1
ModelL18C3PF1 L18M3PF1
Part NumberSB10W67243, 5B10T04975
ColorBlack
TypeBattery
CompatibilityFor IdeaPad L340-15IRH L340-17IRH Gaming Laptop
Battery TypeLithium-Ion
Battery Voltage11.52V / 11.4V
Battery Capacity45Wh

Questions about this item

How do I install the L18C3PF1 battery in my IdeaPad L340-15IRH and what step is often missed?

Remove the bottom case screws, disconnect the old battery connector before lifting it out, then connect the new 11.52V pack and reassemble; the step often missed is disconnecting the old battery first.

What maintenance or replacement will the L18M3PF1 need later?

The lithium-ion 45Wh pack is not user-serviceable; when runtime falls below your needs the whole battery must be replaced as a unit.

What limit appears first on the 11.4V battery during sustained gaming on the L340-17IRH?

Continuous high draw will hit the pack's thermal limit first, causing the laptop to throttle performance until the battery cools.

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