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Samsung Ativ Book 9 Plus AA-PLVN4AR Compatible Battery 7.6V 7300mAh

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From $116.99 USD $140.99
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Fits Samsung Ativ Book 9 Plus models using OEM part AA-PLVN4AR battery connector.
This 7.6V 7300mAh lithium-polymer cell matches the ultrabook's original voltage and capacity exactly.
Connector slides into the battery slot with a plastic locking tab on the left side.
We bench-tested the BMS on a NP940X3G — charging reached full voltage without cutoff faults.
On first boot after install, run one full discharge to hibernation, then uninterrupted charge to 100% — this resets the BIOS battery learn cycle and clears the inaccurate health warning that appears 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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⚠️ 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

7.6V

Amp

7300mAh

Samsung Ativ Book 9 Plus NP940X3G Series — 7.6V Li-Polymer Replacement Battery (AA-PLVN4AR)

This is a 7.6V, 7300mAh (55.48Wh) lithium-polymer replacement battery for the Samsung Ativ Book 9 Plus ultrabook. It fits the NP940X3G line, including NP940X3G-K01NL, NP940X3G-K01, and nine additional NP940X3G variants. It replaces OEM part AA-PLVN4AR directly.

  • NP940X3G platform fit: All NP940X3G variants share the same 7.6V battery rail, connector pinout, and BMS handshake protocol. A single cell swap covers the full sub-series without adapter modifications or firmware changes.
  • Bench tested on actual hardware: We cycled this cell on an NP940X3G unit and confirmed the BMS accepted the handshake on first connection, reported voltage correctly in Windows, and held charge curve within spec across three full cycles.
  • Post-install calibration for NP940X3G: After fitting this cell, run one full discharge until the laptop hibernates at 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 poor battery health immediately after replacing the AA-PLVN4AR

Samsung's BIOS on the NP940X3G reads EEPROM data embedded in the original cell. When a new cell is installed, that EEPROM data is either absent or mismatched, so the BIOS flags health as poor or unknown — even if the new cell is at full capacity. This is a firmware recognition issue, not a hardware fault. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% forces a battery learn cycle and rewrites the health register. After two to three calibration cycles, the BIOS typically reports accurate health.

Ativ Book 9 Plus shutting down at 20–30% charge shown on screen

This happens when the fuel gauge IC loses calibration against the new cell's chemistry. The displayed percentage no longer matches actual cell voltage, so the laptop cuts power when the cell hits its low-voltage cliff — well before the gauge reaches 0%. The fuel gauge IC needs calibration cycles to map the new cell's discharge curve accurately. Run two full discharge-to-hibernate cycles, charging fully to 100% each time, and the gauge will converge to within 3–5% accuracy. Check that the cell voltage shown in battery diagnostics reaches at least 8.5V when fully charged.

Compatible Models

Ativ Book 9 Plus NP940X3G NP940X3G-K01NL NP940X3G-K01 NP940X3G-K02 NP940X3G-K04 NP940X3G-K01US NP940X3G-K04US NP940X3G-K03US NP940X3G-K01CA NP940X3G-K02US NP940X3G-K01DE NP940X3G-K01AU

Replaces Part Numbers

AA-PLVN4AR

Technical Specifications

Voltage7.6V
Amp Hours7300mAh
Capacity7300mAh
Rate55.48Wh
Net Weight264.3g /9.32 oz
Gross Weight524.3g /18.49 oz
Approximate Weight524.3g /18.49 oz
Dimension 272.43 x 120.10 x 5.29mm

Product Highlights

  • Brand: Samsung
  • 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 Ativ Book 9 Plus shows the replacement battery as "0% available (plugged in, charging)" and it never moves — what's wrong?

The fuel gauge IC hasn't mapped the new cell yet and is reading EEPROM state from the old battery. Disconnect the AC adapter, let the laptop discharge fully until it hibernates, then plug in and charge straight to 100% without interruption. After one complete cycle the gauge IC re-initialises against the new cell and the percentage starts tracking correctly.

Why does Samsung BIOS still show battery health as "Poor" or "Replace soon" after fitting the new AA-PLVN4AR cell?

The NP940X3G BIOS reads health status from EEPROM data written by the original cell — the new cell carries no matching record, so the BIOS flags it as degraded. This is a learn-cycle gap, not a faulty battery. Run a full discharge to hibernate-cutoff followed by an uninterrupted charge to 100%, and repeat twice. The BIOS health register rewrites itself after those calibration cycles and the warning clears.

Windows Battery Report shows the wrong Wh rating — it lists a lower design capacity than the 55.48Wh spec. Is the cell underspec?

The Wh figure Windows reports is pulled from EEPROM embedded in the cell, and that register sometimes carries the rated value from the original OEM chemistry rather than the exact measured capacity of the replacement cell. The actual energy stored matches spec — the discrepancy is a metadata mismatch, not a capacity shortfall. Verify by running a full discharge cycle and checking that runtime aligns with a full-capacity cell; the reported Wh figure in the Battery Report typically corrects itself after two full calibration cycles.

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