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Barrow Mods

Barrow Mods 2 in 1 Accessory Battery 15.44V 50Wh for Lenovo IdeaPad Duet 5 12IAU7 12IRU8

SKU CH-Y879-4B4JQ

Replacement 15.44 V 50 Wh Li-polymer battery for Lenovo IdeaPad Duet 5 12IAU7 and 12IRU8, rated for about 500 recharge cycles

  • 50 Wh capacity powers the Duet 5 through a full day
  • 44 V lithium-polymer cell matches the original voltage exactly
  • Replaces Lenovo part numbers L21C4PE3, L21D4PE3, L21L4PE3
  • Built-in smart chip protects against over-charge and short circuits
  • Rated for about 500 recharge cycles over its service life

Replacement Battery for IdeaPad Duet 5

This 15.44V 50Wh lithium-polymer pack replaces Lenovo part numbers L21C4PE3, L21D4PE3 and L21L4PE3. It fits the IdeaPad Duet 5 12IAU7 and 12IRU8 series notebooks. The four-cell design delivers 3239mAh of capacity for compatible devices.

Upgrade From Depleted Original Cell

Swap this unit in when the factory battery no longer holds a useful charge or shows rapid self-discharge. The replacement restores the original 50Wh rating and is rated for about 500 recharge cycles over its service life. It is not suited for users who need a higher-capacity pack than the stock 50Wh specification.

Sustained Operation With Circuit Protection

Built-in smart chip circuitry provides stable current output and protects against overcharge, over-discharge and short-circuit conditions. Low self-discharge chemistry helps retain stored energy during standby periods. CE, FCC and RoHS certifications confirm compliance with declared safety standards for continuous daily use.

Highlights

  • 50 Wh capacity powers the Duet 5 through a full day
  • 44 V lithium-polymer cell matches the original voltage exactly
  • Replaces Lenovo part numbers L21C4PE3, L21D4PE3, L21L4PE3
  • Built-in smart chip protects against over-charge and short circuits
  • Rated for about 500 recharge cycles over its service life

Specifications

No published specifications for this item yet.

Questions about this item

Does this battery match the L21C4PE3, L21D4PE3 and L21L4PE3 part numbers for the IdeaPad Duet 5?

Yes, it replaces L21C4PE3, L21D4PE3 and L21L4PE3 and fits the IdeaPad Duet 5 12IAU7 and 12IRU8 series notebooks.

What is the correct way to install the battery and what step do people often miss?

Power off the device, disconnect the old pack, connect the new 15.44 V 50 Wh Li-Polymer battery, then secure the screws; the step often missed is reconnecting the connector before closing the case.

How many recharge cycles can the 50 Wh 4-cell pack deliver before it needs replacement?

The pack is rated for about 500 recharge cycles over its life before capacity drops enough to require a new battery.

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