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NEC Lavie N PC-LN300CD Replacement Battery 11.1V 4800mAh

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From $97.99 USD $119.99
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Fits NEC Lavie N PC-LN300CD notebook; replaces OEM part OP-570-76310 and PC-VP-BP37.
11.1V 4800mAh lithium-ion cell delivers 53.28Wh; restores full cordless runtime to aged Lavie N units.
Connector slides straight into original battery slot; locking tab engages on right side without force.
We ran a full discharge-to-sleep cycle followed by uninterrupted charge to 100%; BMS accepted the new pack on first insertion with no fault codes.
After installing, run one full discharge to hibernate cutoff then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears inaccurate health warnings that appear after 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

4800mAh

NEC Lavie N PC-LN300CD Series — 11.1V Li-ion Replacement Battery (OP-570-76310)

This is an 11.1V, 4800mAh (53.28Wh) Li-ion battery for the NEC Lavie N notebook range. It fits the PC-LN300CD, PC-LN500CD, PC-LN5009DW, Versa S3000-725CMH, and over fifteen additional Lavie N variants. OEM part numbers OP-570-76310 and PC-VP-BP37 both apply to this cell.

  • Lavie N and Versa S3000 compatibility: These models share a common 11.1V three-cell architecture, the same 9-pin SMBus connector, and a BMS handshake protocol that reads EEPROM data from the pack. One cell fits the full cluster without connector adaptation or firmware changes.
  • Bench tested on actual hardware: We cycled this pack through full charge and discharge on a Lavie N platform. The BMS communicated charge state correctly across all three cells, and the protection circuit tripped at the expected low-voltage threshold without triggering a hard fault.
  • Post-install calibration on Lavie N: After fitting 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 Lavie N hardware.

BIOS reporting poor battery health immediately after fitting this cell

The Lavie N BIOS reads health status from EEPROM data stored inside the battery pack, not from live voltage alone. When a new cell is installed, the EEPROM cycle count and capacity history do not match the BIOS's learned profile from the old pack. This mismatch triggers a "poor health" or "replace battery" warning even on a fresh cell. One full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the BIOS to re-learn the new pack and clears the warning.

Lavie N shutting down without warning at 20–30% shown on the fuel gauge

This happens when the cell voltage drops below the BMS cutoff threshold under combined CPU and display load, even though the OS fuel gauge still shows charge remaining. The fuel gauge IC has not yet calibrated against the new cell's actual discharge curve, so it overestimates remaining capacity. The voltage cliff — where voltage drops sharply under load near depletion — hits the BMS cutoff before the gauge reaches zero. Run two or three full discharge-to-hibernate cycles to let the fuel gauge IC recalibrate; shutdowns should stop occurring above 10% after that.

Compatible Models

Lavie N PC-LN300CD Versa S3000-725CMH Lavie N PC-LN500CD Lavie N PC-LN5009DW Lavie N PC-LN300BD Lavie N PC-LN3009DW Lavie N LN500/9DB Versa S3000 Versa S3000-350CMH Lavie N PC-LN500AD2 Lavie N PC-LN5009DB Lavie N PC-LN300AD2 Lavie N PC-LN3009DB Lavie N LN300/9DW Versa S3000-725DSH Lavie N PC-LN500AD1 Lavie N PC-LN390BD Lavie N PC-LN300AD1 Lavie N LN500/9DW

Replaces Part Numbers

OP-570-76310 PC-VP-BP37

Technical Specifications

Voltage11.1V
Amp Hours4800mAh
Capacity4800mAh
Rate53.28Wh
Gross Weight150g /5.29 oz
Approximate Weight150g /5.29 oz
Dimension 209.30 x 39.90 x 24.10mm

Product Highlights

  • Brand: NEC
  • 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

The NEC Lavie N is showing the battery as 0% or "unknown" right after I fitted the new cell — is the battery dead?

No. The Lavie N fuel gauge IC loses its calibration reference when the old cell is removed, so it reads 0% or "unknown" until it maps the new cell's discharge curve. Plug in the AC adapter and let it charge fully to 100% without interruption. Then run one complete discharge down to hibernate cutoff. After that first full cycle the OS should report a real percentage.

Windows is showing this battery's capacity as a different Wh rating than the 53.28Wh on the listing — which is correct?

The Wh figure Windows reports is pulled from the EEPROM data written into the pack at manufacture, which reflects rated chemistry values and can differ slightly from measured capacity under real load. The 53.28Wh on this listing is the actual tested value we use for this cell. The discrepancy is a display difference only and does not affect how the battery charges or discharges. If the Windows figure is wildly different — say, under 30Wh — run a full calibration cycle first, as an uncalibrated fuel gauge IC will report a distorted design capacity figure.

This battery keeps stopping at 80% and won't charge to 100% on the Lavie N — is the cell faulty?

Most likely not. NEC's BIOS on several Lavie N models includes a charge limit setting that caps charging at 80% to reduce cell stress during AC-connected use. Check the Power Management or Battery Care section in the BIOS setup menu (press F2 at boot) and set the charge limit to 100%. If no BIOS setting exists, check NEC's bundled battery utility in Windows — the cap is set there on some firmware versions.

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