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Lenovo ThinkPad E390 Replacement Battery LBF-TS60 11.1V 4400mAh

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From $81.99 USD $100.99
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Fits Lenovo ThinkPad E390, E420, E420M and replaces LBF-TS60, LBF-TS61, 60.4F907.001 battery pack.
11.1V, 4400mAh lithium-ion cell delivers 48.84Wh — matches original output for standard workday unplugged operation.
Connector seats flush into the E390 battery bay with dual locking tabs; verify orientation before sliding fully into the slot.
We bench-tested this cell on E390 hardware; BMS handshake completed on first charge with no cutoff faults or voltage sag under sustained CPU load.
After installation, run one full discharge to system hibernation cutoff, then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears the inaccurate health warning that Lenovo firmware displays after every cell swap.
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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

11.1V

Amp

4400mAh

Lenovo ThinkPad E390 / E420 Series — 11.1V Li-ion Replacement Battery (LBF-TS60)

This 11.1V, 4400mAh Li-ion battery replaces the original cell in the Lenovo ThinkPad E390, E420, E420M, and TS61 series notebooks. It matches the OEM voltage and capacity spec so the BIOS recognises it without a firmware conflict. Capacity figure is 48.84Wh as listed in the product data.

  • E390 / E420 platform fit: These models share the same battery bay dimensions, connector pinout, and BMS handshake protocol. The 202.78 × 49.96 × 26.49mm cell slots into all listed variants without modification.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a ThinkPad E420. The BMS negotiated correctly, the charge controller accepted the cell without flagging an incompatible pack, and the fuel gauge IC tracked state-of-charge through each cycle.
  • Post-install calibration on ThinkPad firmware: After fitting this cell, run a full discharge to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on ThinkPad firmware.

BIOS reporting poor battery health immediately after fitting a new cell

ThinkPad firmware stores battery health data in EEPROM and compares the new cell's reported parameters against the degraded baseline from the old pack. A fresh cell with full capacity reads as anomalous to the existing EEPROM profile. The BIOS flags this as poor health or an unknown battery — not a fault with the replacement cell. Run the full discharge-to-hibernate then uninterrupted charge sequence once, and the learn cycle rewrites the EEPROM baseline to match the new cell's actual capacity.

Laptop shuts down at 20–30% charge remaining shown on screen

This happens when the fuel gauge IC has not yet calibrated against the new cell's voltage curve. The IC is still reading state-of-charge against the old cell's degraded profile, so it hits a voltage cliff earlier than the display percentage suggests. Under full CPU and display load, the cell voltage drops faster than the uncalibrated gauge can track. Two to three full discharge-and-charge cycles recalibrate the fuel gauge IC — after that, the shutdown percentage aligns with actual remaining capacity.

Compatible Models

E390 420 420M TS61 420A 420L E390A E390M W390M

Replaces Part Numbers

LBF-TS60 LBF-TS61 60.4F907.001 60.4F907.041 60.4F907.061 60.4Q804.031

Technical Specifications

Voltage11.1V
Amp Hours4400mAh
Capacity4400mAh
Rate48.84Wh
Net Weight301.8g /10.65 oz
Gross Weight451.8g /15.94 oz
Approximate Weight451.8g /15.94 oz
Dimension 202.78 x 49.96 x 26.49mm

Product Highlights

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

Frequently Asked Questions

My ThinkPad E420 shows the replacement battery as "0%" and won't start charging — what's wrong?

The fuel gauge IC is reading EEPROM data from the old cell and hasn't initialised against the new pack yet. Connect the charger and leave it plugged in for at least 30 minutes without pressing the power button — the charge controller needs time to wake the BMS and begin the negotiation cycle. If the percentage stays at 0% after that, hold the power button for 10 seconds with the charger connected to force a hardware reset. The gauge should begin climbing once the BMS handshake completes.

System information shows the wrong Wh rating for this battery — is the cell faulty?

The Wh figure shown in Windows or Lenovo Vantage pulls from the EEPROM on the battery pack, which stores the rated spec from the original OEM cell — not the actual chemistry of the replacement. This cell is rated at 48.84Wh, but the EEPROM value may display a different number until the BIOS learn cycle completes. Run one full discharge to hibernate cutoff followed by an uninterrupted charge to 100%, and the system will recalculate the Wh figure against the new cell's actual measured capacity.

New battery charges normally but ThinkPad E390 still shuts down hard under load — CPU-heavy tasks, video calls, anything intensive

This is a voltage sag issue — under simultaneous CPU, GPU, and display load, the cell voltage drops sharply at the lower end of the charge curve, and the BMS cuts power before the fuel gauge catches up. It is most common in the first few cycles before calibration settles. Run two full discharge cycles to hibernate cutoff, charging completely between each one. If the hard shutdowns continue after three calibration cycles, check that the BIOS charge threshold in Lenovo Vantage is not set below 80% — a firmware charge limit will cap usable capacity regardless of the cell condition.

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