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Lenovo IdeaPad Y330 Replacement Battery LO8S6D11 11.1V 4400mAh

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From $103.99 USD $123.99
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Fits Lenovo IdeaPad Y330 and Y330-20002 laptops, replacing OEM part numbers LO8S6D11 and L08L6D11.
11.1V, 4400mAh lithium-ion cell restores full portable runtime on the Y330 after original battery degradation or capacity loss.
Connector slides straight into the battery slot with a single locking tab; no adapter or modification needed.
We bench-tested this cell against the Y330's fuel gauge IC — BMS accepted the handshake on first insertion without errors.
After installation, fully discharge the laptop to sleep mode then charge uninterrupted to 100% to reset the BIOS battery learn cycle.
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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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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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

11.1V

Amp

4400mAh

Lenovo IdeaPad Y330 Series — 11.1V Li-ion Replacement Battery (LO8S6D11)

This 11.1V, 4400mAh (48.84Wh) lithium-ion cell replaces the original battery in Lenovo IdeaPad Y330 laptops, including the Y330-20002, Y330-2269, and Y330A variants. It fits the OEM connector and BMS communication protocol on these models without modification. Cross-references OEM part numbers LO8S6D11 and L08L6D11.

  • IdeaPad Y330 platform compatibility: These Y330 variants share the same 11.1V three-cell configuration, connector pinout, and BMS handshake protocol — so one cell works across the full series without re-pinning or firmware changes.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on Y330 hardware. The BMS accepted the new cell immediately, balanced all three cell groups, and held voltage stable across full CPU and display load.
  • First-cycle calibration after install: After fitting this cell, run one full discharge to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the false "poor health" warning that appears after most cell swaps on this platform.

BIOS reporting battery health as poor immediately after replacement

The Y330 BIOS reads health data from EEPROM registers on the battery controller, not from real-time voltage. When a new cell goes in, those registers still carry the degraded history of the old pack. The BIOS flags the new cell as worn before it has run a single cycle. One full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the firmware to rewrite the learn cycle data against the actual new cell chemistry. After that cycle, the health indicator corrects itself without any BIOS intervention.

Laptop shutting down at 20–30% charge shown on screen

This happens when the fuel gauge IC's stored discharge curve no longer matches the actual cell. The gauge reports 25% remaining, but the real cell voltage has already hit the BMS low-voltage cutoff under combined CPU and display load. The Y330 draws hard during full-screen video or sustained CPU tasks — enough to trigger an abrupt shutdown even when the status bar shows charge remaining. Run two full calibration cycles — discharge to hibernate, charge to 100% — to align the fuel gauge IC with the new cell's actual voltage curve.

Compatible Models

Ideapad Y330 Ideapad Y330-20002 Ideapad Y330-2269 Ideapad Y330A Ideapad Y330G

Replaces Part Numbers

LO8S6D11 L08L6D11

Technical Specifications

Voltage11.1V
Amp Hours4400mAh
Capacity4400mAh
Rate48.84Wh
Net Weight314.5g /11.09 oz
Gross Weight494.5g /17.44 oz
Approximate Weight494.5g /17.44 oz
Dimension 205.35 x 64.22 x 29.70mm

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

Why does Windows show 0% or "plugged in, not charging" right after I installed the new battery?

The Y330's fuel gauge IC retains the discharge curve from the old cell and cannot immediately map it to the new one. Windows reads that stale data and reports 0% or refuses to show a valid state of charge. Plug in the charger, let the battery reach 100% without interruption, then run it down to hibernate — after one full cycle the gauge IC recalibrates against the new cell and Windows reports correctly.

The system info screen shows the wrong Wh rating — it still shows the old battery's capacity, not 48.84Wh. Is the cell faulty?

The Wh figure Windows displays comes from the EEPROM on the battery controller, not from a live measurement. When the old pack is swapped out, the BIOS may still be reading a cached or mismatched register value from the previous session. Run one full discharge-to-hibernate cycle followed by a full uninterrupted charge — this prompts the firmware to rewrite the design capacity register from the new cell's EEPROM data, and the correct 48.84Wh figure should appear in system info afterward.

My Y330 charges fine but the battery percentage jumps wildly — drops from 60% to 10% in minutes, then climbs back. What causes that?

This is a fuel gauge IC calibration issue. The gauge is interpolating charge state from a discharge curve built around the old, degraded cell — so it misreads voltage slopes on the new cell and produces erratic percentage jumps. The fix is two consecutive full calibration cycles: discharge to automatic hibernate, then charge without interruption to 100%, twice in a row. After the second cycle, the IC has enough data points to track the new cell accurately and the percentage readout stabilises.

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