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Lenovo IdeaPad U410 Compatible Battery L10M4P11 7.4V 7900mAh

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From $83.99 USD $104.99
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Fits Lenovo IdeaPad U410 ultrabooks; replaces L10M4P11, L10M4E21, L09C4B21, 40Y7903, 2ICP4/51/161-2.
This 7.4V 7900mAh lithium-polymer cell restores full capacity to the U410's thin chassis without voltage sag during CPU and display load.
Connector slides straight into the original battery slot; locking tab seats flush against the frame with no adapter needed.
We tested the BMS on first charge; the fuel gauge IC tracked voltage rise cleanly through the 4200mV peak with no cutoff faults.
After installation, discharge fully to shutdown then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears false health warnings.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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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.

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🔹 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.

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⚠️ 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

7.4V

Amp

7900mAh

Lenovo IdeaPad U410 — 7.4V Li-Polymer Replacement Battery (L10M4P11)

This 7.4V, 7900mAh (58.46Wh) lithium-polymer battery replaces the original cell in the Lenovo IdeaPad U410 ultrabook. It fits the standard U410 as well as specific variants including the i5-3317U, 25-203730, and Touch-59372989 models. Cross-references include L10M4E21, L09C4B21, 40Y7903, and 2ICP4/51/161-2.

  • IdeaPad U410 platform fit: All U410 variants listed share the same 7.4V two-cell Li-Polymer architecture, connector pinout, and BMS handshake protocol. The same physical cell and EEPROM communication spec applies across the standard chassis and Touch subvariant.
  • Bench tested on actual hardware: We ran this cell through charge-discharge cycles on a U410 chassis. The BMS accepted the new cell without error flags, the protection circuit tripped correctly at low-voltage cutoff, and charge termination engaged at full capacity without anomaly.
  • Post-install calibration on the U410: After fitting, run the laptop down to hibernate-cutoff on battery only — no AC during discharge. Then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the false "poor health" warning that appears after every cell swap on this platform.

Why the U410 shuts down at 20–30% charge remaining

This happens when the fuel gauge IC is still calibrated against the old depleted cell. The new cell has a steeper voltage curve than the degraded one the IC learned from. Under combined CPU and display load, the voltage drops sharply in a way the miscalibrated gauge reads as empty. The fix is two full discharge-to-hibernate and uninterrupted charge cycles — after that the gauge IC maps the correct curve and shutdowns stop.

BIOS reporting wrong Wh rating after cell swap

The Wh value shown in BIOS or Lenovo Vantage comes from EEPROM data written at the factory, not from a live measurement of the new cell. A replacement cell carries its own EEPROM rated value, which may differ from the original. This is a data mismatch, not a fault — the cell still delivers its full 58.46Wh. If the figure matters for asset tracking, one calibration cycle after install will prompt the firmware to update the displayed value.

Compatible Models

IdeaPad U410 IdeaPad U410 25-203730 IdeaPad U410 i5-3317U IdeaPad U410 Touch-59372989 IdeaPad U410 43762BU IdeaPad U410 59351632 Ideapad U410 59-341061 IdeaPad U410 59-342788 IdeaPad U410 i7-3537U IdeaPad U410 437629U IdeaPad U410 43762YU IdeaPad U40-IFI

Replaces Part Numbers

L10M4P11 L10M4E21 L09C4B21 40Y7903 2ICP4/51/161-2

Technical Specifications

Voltage7.4V
Amp Hours7900mAh
Capacity7900mAh
Rate58.46Wh
Net Weight294g /10.37 oz
Gross Weight434g /15.31 oz
Approximate Weight434g /15.31 oz
Dimension 201.72 x 110.80 x 9.00mm

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 U410 fuel gauge is jumping around wildly — showing 60%, then 30%, then back up — is the new battery faulty?

The fuel gauge IC on the U410 calibrates itself against the cell it learned on. After a swap, it has no accurate reference curve for the new cell, so readings swing erratically for the first few cycles. Run two complete discharge-to-hibernate cycles followed by uninterrupted charges to 100% each time. After that, the IC maps the new cell's voltage curve and the gauge stabilises.

The U410 won't charge above 80% since I fitted the new battery — did I get a dud cell?

That 80% ceiling is almost always a BIOS-controlled charge threshold, not a cell fault. Lenovo's firmware includes a "conservation mode" setting that caps charging at 55–80% to reduce wear — it stays active across battery swaps. Open Lenovo Vantage, go to Power, then Battery, and check whether Conservation Mode is switched on. Turn it off and the charge limit clears immediately.

Windows is showing the replacement battery as "0% available (plugged in, not charging)" right after install — what's wrong?

The U410 BIOS sometimes fails to recognise a new cell's EEPROM on the first boot and holds the charge circuit open as a safety response. Shut down completely — not restart — remove AC power for 30 seconds, then reconnect AC before powering on. If the issue persists, enter the BIOS once and exit without changes; this forces a fresh hardware enumeration. The battery should show a valid charge percentage and begin charging at that point.

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