Lenovo IdeaPad 3 15ITL6 L20C3PF0 Replacement Battery 11.4V
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Lenovo IdeaPad 3 15ITL6 L20C3PF0 Replacement Battery 11.4V - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
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.
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Disclaimer
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Lenovo IdeaPad 3 15ITL6 L20C3PF0 Replacement Battery 11.4V - is backordered and will ship as soon as it is back in stock.
Voltage
11.4V
Amp
3950mAh
Lenovo IdeaPad 3 15ITL6 / V15 G3 ABA — 11.4V Li-Polymer Replacement Battery (L20C3PF0)
This is an 11.4V, 3950mAh (45.03Wh) Li-Polymer replacement battery for the Lenovo IdeaPad 3 and V15 G3 series notebooks. It fits the IdeaPad 3 15ITL6, IdeaPad 3 15IAU7, V15 G3 ABA, and over 167 additional variants that share the same connector and BMS handshake protocol. OEM part numbers covered include L20C3PF0, L20L3PF0, L20M3PF0, SSB11B36277, and 5B11B36275.
- IdeaPad 3 and V15 G3 platform compatibility: These models share a unified 11.4V three-cell Li-Polymer architecture with an identical battery connector and EEPROM-based BMS handshake. The firmware on each chassis reads the same authentication and charge-management registers, so one cell works across the full family.
- Bench tested on actual hardware: We ran this cell on an IdeaPad 3 15ITL6 unit. The BMS completed full charge authentication, the BIOS detected the pack without error codes, and the fuel gauge IC locked onto the new cell data within two calibration cycles.
- Post-swap calibration on the IdeaPad 3: After installing this cell, run one full discharge down 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 this platform.
BIOS reporting battery health as poor immediately after replacement
The IdeaPad 3 BIOS reads health data from the EEPROM on the battery pack, not from live cell voltage. When a new cell is installed, the EEPROM contains factory-default values that don't yet match the BIOS's expected calibration data for a charged cycle. The system flags this mismatch as degraded health. One full discharge-to-hibernate followed by a complete uninterrupted charge allows the fuel gauge IC to rewrite the EEPROM registers with accurate cycle data — after which the BIOS health warning clears.
Laptop shuts down abruptly at 20–30% charge shown on screen
This is a voltage cliff failure — under combined CPU and display load, the cell voltage drops faster than the fuel gauge IC can track, hitting the BMS low-voltage cutoff before the OS gauge reaches 0%. The BIOS learn cycle hasn't yet mapped the new cell's discharge curve to actual load conditions. Run two full calibration cycles: discharge under normal workload to hibernate-cutoff, then charge to 100% each time. After both cycles, the fuel gauge IC recalibrates its load-compensation model and the shutdown threshold aligns correctly to the displayed percentage.
Compatible Models
Replaces Part Numbers
Technical Specifications
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 IdeaPad 3 is showing the replacement battery as "0% available (plugged in, not charging)" — what's wrong?
This is an EEPROM mismatch between the new cell and the BIOS authentication register. The laptop is reading stale or default EEPROM data and blocking the charge circuit as a precaution. Shut down completely, disconnect the AC adapter for 30 seconds, reconnect, and boot into Windows. If the charge still won't start, enter the BIOS setup (F2 at boot), let it sit on the main screen for 60 seconds with AC connected, then reboot — this forces a fresh BMS handshake at 11.4V baseline.
System info is showing this battery as 38Wh but the spec says 45.03Wh — is it the wrong cell?
The Wh figure in Windows Device Manager and Lenovo Vantage is pulled from the EEPROM's rated-capacity register, not measured directly from the cell chemistry. A new cell ships with a conservative factory-default register value until the fuel gauge IC completes calibration cycles against actual charge and discharge data. Run two full discharge-to-hibernate and charge-to-100% cycles and the reported Wh value will update to reflect the actual 45.03Wh cell capacity.
The battery charge is stopping at exactly 80% and won't go higher — is the cell faulty?
This is not a cell fault. Lenovo's BIOS includes a Conservation Mode charge limit that caps charging at 80% to reduce long-term cell stress when the laptop is frequently left on AC power. Open Lenovo Vantage, go to Power → Battery Settings, and check whether Conservation Mode or Charge Threshold is enabled. Disable it, and the charge ceiling lifts to 100% immediately — no hardware fix needed.
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