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Lenovo 100e Chromebook 2nd Replacement Battery L19L3PG1 11.55V

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From $54.99 USD $67.99
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Fits Lenovo 100e Chromebook 2nd Gen and replaces OEM part L19L3PG1.
Delivers 11.55V and 4050mAh capacity to restore full charge cycles on this Chromebook.
Connector seats flush into the battery slot with positive terminal alignment — no adapter needed.
We bench-tested this cell against a discharged OEM unit; the BMS accepted charge within normal parameters on first insertion.
After installation, run one full discharge to hibernation cutoff then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears false health warnings.
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

11.55V

Amp

4050mAh

Lenovo 100e / 300e Chromebook 2nd Gen — 11.55V Li-Polymer Replacement Battery (L19L3PG1)

This 11.55V, 4050mAh (46.78Wh) Li-Polymer cell replaces the original battery in the Lenovo 100e Chromebook 2nd Gen, 300e Chromebook 2nd Gen, and a broad range of related Chromebook 100e and 300e variants. It cross-references OEM part numbers including L19L3PG1, L19C3PG1, L19M3PG1, and 5B10X65684, among others. If your existing battery no longer holds a charge or the system shuts down unexpectedly, this cell restores normal portable operation.

  • 100e and 300e Chromebook 2nd Gen compatibility: Both model lines share the same 11.55V three-cell architecture, identical connector pinout, and the same BMS handshake protocol — which is why a single cell covers both. The BMS communicates state-of-charge data over the same SMBus line regardless of chassis variant.
  • Bench tested on actual hardware: We ran this cell through charge-discharge cycles on a 300e 2nd Gen chassis. The BMS accepted the cell without error flags, reported correct voltage across all three cells, and the fuel gauge IC initialised without a reset prompt.
  • Post-install calibration cycle: After fitting this battery, run one full discharge down to the hibernate cutoff, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to re-baseline against the new cell and clears the inaccurate health warning that appears after every cell swap on this platform.

Why the Chromebook shuts down at 20–30% after a battery swap

The fuel gauge IC on the 100e and 300e platforms stores discharge curve data tied to the original cell's chemistry profile. After a swap, that stored curve no longer matches the new cell's actual voltage behaviour under load. When the CPU and display both draw full power simultaneously, the new cell hits a voltage cliff earlier than the old curve predicts — and the BMS triggers a hard shutdown before the gauge reaches 0%. Running two or three full discharge-to-hibernate cycles retrains the fuel gauge IC against the new cell and eliminates premature shutdowns.

BIOS reporting battery health as "poor" or "replace" immediately after installation

This is an EEPROM data mismatch, not a fault with the new cell. The BIOS reads health metadata written by the original battery's internal EEPROM, and the new cell's counters show zero cycles against a high-cycle baseline — which the firmware interprets as degradation. To clear it, open Lenovo Vantage or access the BIOS battery diagnostics, then run a full battery learn cycle. After one complete discharge-to-hibernate and uninterrupted recharge, the health indicator should update to normal. If the warning persists after two full cycles, verify the BIOS firmware is on the latest version for your specific model.

Compatible Models

100e Chromebook 2nd 300e Chromebook 2nd Chromebook 100e Chromebook 300e Chromebook 500e 100e Chromebook 81ER 300e ChromeBook 81H0 500e Chromebook 81ES 300e ChromeBook 500e Chromebook 100e Chromebook Chromebook C340-11 81TA000AAU Chromebook C340-11 300e 2nd Gen 81M90063AU 100e Chromebook-81ER000LAU 300e ChromeBook(81H0000LBV) Chromebook S340-14(81TB000HGE) 300e Chr 2 N4000 81MB000JAU ideapad 3 CB-11IGL05 82BA0008AU Chromebook C340-11(81TA000GGE) 300e 2nd Gen 81M900B9AU 300e ChromeBook 2nd Gen AST(82CE0002MX) 100e ChromeBook 2nd Gen(81MA) 300e Chromebook 2nd Gen 81MB001CAU ideapad 3 CB-14IGL05 82C1001WAU Chromebook S340-14 Touch 100e Chr 2 N4000 81MA000NAU 500e Chromebook 2nd Gen 81MC001CAU 100e ChromeBook 2nd Gen MTK(81QB0000US) 100e 2nd Gen 81M80038AU Flex 3 CB-11IGL05 82BB000LAU 100e Chromebook(81ER0001) Chromebook S340-14 Touch(81V30002) 100e Chromebook 2nd Gen 81MA001AAU Chromebook C340-11 81TA0009AU 500e ChromeBook 2nd Gen(81MC0009UK) 300e 2nd Gen 81M9004QAU 100e Chromebook N3350-81ER0000AU 300e ChromeBook(81H00001CF) Chromebook S340-14(81TB/81V3) 300e Chromebook 2nd Gen 81MB0004US Chromebook S340-14 81TB000GAU Chromebook C340-11(81TA) 300e 2nd Gen 81M900B8AU 300e ChromeBook 2nd Gen AST(82CE) Chromebook S340-14(81TB000JGE) 300e Chromebook 2nd Gen 81MB000YAU ideapad 3 CB-14IGL05 82C1000JAU Chromebook C340-11(81TA000HGE) 100e Chr 2 N4000 81MA0006AU 300e ChromeBook 2nd Gen MTK(81QC) 100e 2nd Gen 81M8002QAU 300e Chromebook 2nd Gen 81MB002KAU Flex 3 CB-11IGL05 82BB000KAU 100e Chromebook(81ER0002) Chromebook S340-14 Touch(81V3) 100e Chromebook 2nd Gen 81MA000SAU 500e Chromebook 2nd Gen 81MC001EUS 500e ChromeBook 2nd Gen(81MC) 300e 2 N4100 81M9000QAU 100e Chromebook 2nd Gen MTK-81QB0007AU 300e ChromeBook 2nd Gen(81MB) Chromebook S340-14 Touch(81V30005GE) 300e Chromebook 2nd Gen 81MB0003US

Replaces Part Numbers

L19L3PG1 5B10X65684 L19C3PG1 5B10X65682 L19M3PG1 5B10X65680 L17L3PB0 L17M3PB0 5B10S75394 5B10T36868 5B10W13947 5B10W67306 L18D3PG1 SB10T83190 SB10W67359 5B10Q13162 5B10Q13163 5B10Q13164 5B10Q38232 5B10S73396 5B10T36866 5B10T36867 5B10W13945 5B10W13946 5B10W52017 5B10W67251 5B10W67369 L17C3PG0 SB10T83188 SB10T83189 SB10W52015 SB10W52016 SB10W67164 SB10W67186

Technical Specifications

Voltage11.55V
Amp Hours4050mAh
Capacity4050mAh
Rate46.78Wh
Net Weight200g /7.05 oz
Gross Weight340g /11.99 oz
Approximate Weight340g /11.99 oz
Dimension 214.34 x 123.00 x 5.12mm

Product Highlights

  • Brand: Lenovo
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My Lenovo Chromebook's battery percentage jumps around wildly after I put in the new battery — is the cell faulty?

The cell is almost certainly fine. The fuel gauge IC on the 100e and 300e platforms calibrates its discharge curve against the original cell's chemistry data, and a fresh cell has no learned curve yet. The gauge reads voltage and makes a rough guess at percentage until it has data from real cycles. Run two full discharges to the hibernate cutoff followed by uninterrupted charges to 100% — after the second cycle, the percentage readout stabilises.

Chrome OS is showing the wrong Wh rating for this battery in the system diagnostics — it says something different from what's on the product page.

The Wh figure shown in Chrome OS diagnostics is pulled from the EEPROM on the original battery, not recalculated from the new cell. The new cell is rated at 46.78Wh, but the EEPROM value stored in system firmware may reference an older rated figure from a different sub-variant of this battery family. This is a display artefact only — it does not affect charge behaviour or capacity. Confirm actual charge capacity by checking the mWh figure reported after a full calibration cycle in the Chrome OS battery diagnostics panel.

The replacement battery stopped charging at around 80% and won't go any higher — what's blocking it?

This is almost always the BIOS-controlled charge limit, not a fault with the cell. Lenovo's firmware on the Chromebook 100e and 300e platforms includes a battery protection mode that caps charging at 80% when enabled — it is sometimes toggled on automatically after a firmware update or factory reset. Check the charge threshold setting in the BIOS or in Lenovo Vantage under Power settings. Set the upper charge limit to 100%, then reboot and reconnect the charger — the battery should charge past 80% on the next cycle.

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Lenovo 100e Chromebook 2nd Replacement Battery, 11.55V, 4050mAh, Li-Polymer 1

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