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Black rectangular laptop battery with three cells and label markings

Lenovo

Lenovo L20D3PG2 11.25V 3635mAh 40.9Wh 3-cell laptop battery accessory

SKU CH-49E0-36NNT MPN L20D3PG2

Replacement 11.25 V 40.9 Wh 3-cell lithium-ion battery for select Lenovo Chromebook models

  • Genuine Lenovo part ensures reliable compatibility
  • 9Wh capacity supports extended Chromebook runtime
  • 3-cell Li-Ion design balances power and weight
  • Fits Flex 3, IdeaPad 3 and 100e Chromebook models
  • 25V voltage matches original system requirements

Genuine Lenovo 40.9Wh replacement battery

This 11.25V lithium-ion pack restores runtime to compatible Lenovo Chromebook models including the Flex 3 Chrome 11M836, IdeaPad 3 Chrome 14M836, Flex 3 Chromebook 11IJL6 and 100e Chromebook 2nd Gen MTK 2. It arrives new and ready to install without additional cables or manuals.

Replaces worn 3-cell packs in listed Chromebooks

The battery matches part numbers 5B11B36314, SB11B36318, 5B11B36309, 5B11B36317, L20L3PG2 and L20M3PG2. The upgrade is worth it when the original cell no longer holds sufficient charge for a full school or work day.

Limited to devices using the 3ICP5/54/90 form factor

This pack fits only the specific Lenovo models listed in the compatibility data. It will not work in laptops that require a different voltage, cell count or physical layout, and it is not suitable for non-Chromebook Lenovo lines.

Highlights

  • Genuine Lenovo part ensures reliable compatibility
  • 9Wh capacity supports extended Chromebook runtime
  • 3-cell Li-Ion design balances power and weight
  • Fits Flex 3, IdeaPad 3 and 100e Chromebook models
  • 25V voltage matches original system requirements

Specifications

No published specifications for this item yet.

Questions about this item

Does this battery match the 11.25V 40.9Wh spec required by the Flex 3 Chrome-11M836?

Yes, it is rated at 11.25V, 3635mAh and 40.9Wh, matching the Flex 3 Chrome-11M836 (82KM) specification.

What is the correct order for disconnecting and reconnecting the internal connector during installation?

Disconnect the old pack first, then connect the new 3-cell Li-Ion pack before securing it; reversing the order can leave the connector partially seated.

When should I plan to replace this 3ICP5/54/90 pack?

Replace it once a full charge no longer provides the run-time you expect from the 40.9Wh rating.

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