Lenovo IdeaPad Y480 11.1V Replacement Battery L11L6F01
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Lenovo IdeaPad Y480 11.1V Replacement Battery L11L6F01 - 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.
Disclaimer
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.
Lenovo IdeaPad Y480 11.1V Replacement Battery L11L6F01 - is backordered and will ship as soon as it is back in stock.
Voltage
11.1V
Amp
4400mAh
Lenovo IdeaPad Y480 Series — 11.1V Li-ion Replacement Battery (L11L6F01)
This 11.1V, 4400mAh Li-ion battery replaces the original cell in the Lenovo IdeaPad Y480, Y480A, Y480M, and Y480N. It covers a wide range of OEM part numbers including L11L6F01, L11S6Y01, 45N1042, and 0A36311. Voltage and capacity match the stock specification exactly.
- Y480 series compatibility: The Y480 family shares a common 11.1V battery rail, connector pinout, and BMS handshake across the Y480, Y480A, Y480M, and Y480N variants. One cell fits all four without any adapter or modification.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the Y480 platform. The BMS communicated correctly with the EC, charge current tapered normally at capacity, and the protection circuit tripped cleanly at the low-voltage threshold — no anomalous cutoffs recorded.
- First-cycle calibration on the Y480: After installing, run one full discharge until the laptop hibernates, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears on the first boot with a new cell.
Why the IdeaPad Y480 shuts down at 20–30% after a battery swap
The Y480's fuel gauge IC calibrated its discharge curve against the old cell's degraded chemistry. With a new cell installed, those stored values no longer match the actual voltage-to-capacity relationship. Under full CPU and display load, the new cell briefly sags below the threshold the EC was expecting, triggering an emergency shutdown even though real charge remains. Running two or three full discharge-to-hibernate cycles allows the fuel gauge IC to re-map the curve against the new cell and eliminates the premature cutoff.
BIOS reporting battery health as "poor" immediately after fitting a new cell
The BIOS reads health data from the battery's EEPROM, which carries cycle count and wear flags written by the previous cell's BMS. A fresh cell physically arrives with no wear, but the BIOS sees the carried-over EEPROM state and flags it as degraded. This is a data mismatch, not a battery fault. Complete one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100% — the BIOS battery learn cycle overwrites the stale EEPROM read and the health indicator resets to normal.
Compatible Models
Replaces Part Numbers
Technical Specifications
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 IdeaPad Y480 is showing 0% or "plugged in, not charging" right after I put the new battery in — is it dead?
The EC on the Y480 occasionally fails to recognise a new cell immediately if the old battery was deeply discharged before removal. Leave the laptop plugged in without powering it on for 15–20 minutes — this gives the charger circuit time to pre-charge the cell above the EC's minimum recognition threshold. Once the cell reaches approximately 10.5V, the charge indicator updates and normal charging resumes. If it still shows 0% after that, reseat the battery connector and confirm the tab is fully clicked in.
The battery percentage on my Y480 jumps around wildly — it reads 60%, then suddenly drops to 12% without warning. What's going on?
The fuel gauge IC on the Y480 mainboard calibrated its reference table against your old, worn cell over hundreds of cycles. A new cell has a different discharge curve, so the stored reference data no longer maps correctly to real voltage readings. The gauge reports erratic percentages until it re-learns the curve against the new cell. Run three full discharge-to-hibernate cycles with uninterrupted charges to 100% between each — by the third cycle the fuel gauge IC has enough data to track the new cell accurately.
My Y480 only charges to 80% and then stops — the new battery never reaches 100%.
This is a BIOS-controlled charge limit, not a fault with the replacement cell. Lenovo's firmware includes a battery conservation mode that caps charging at approximately 80% to reduce long-term cell stress. Check Lenovo Vantage or the Power Manager utility — if "Battery Conservation Mode" is enabled, toggle it off. Once disabled, plug in and charge again; the cell will accept charge normally and reach 100%.
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