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Toshiba Dynabook N514 Replacement Battery PA5170U 11.1V

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From $71.99 USD $88.99
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Fits Toshiba Dynabook N514 and Satellite NB10 series; replaces PA5170U-1BRS, PA5207U-1BRS, PABAS279, PABAS282.
11.1V, 2200mAh delivers 24.42Wh — matches OEM output for full CPU and display load cycles.
Connector type is proprietary Toshiba; slides into slot with locking tab on left side; orient contact pins toward rear.
We bench-tested against a stock N514 pack; BMS accepted charge handshake at 0.5A and held 11.1V under 5A discharge without voltage cliff.
After installation, discharge fully to auto-shutoff then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears the incorrect health warnings that appear after cell swap.
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

2200mAh

Toshiba Dynabook N514 / Satellite NB10 Series — 11.1V Li-ion Replacement Battery (PA5170U-1BRS)

This 11.1V, 2200mAh Li-ion battery replaces the original cell in the Toshiba Dynabook N514 and Satellite NB10 series notebooks. It carries OEM part numbers PA5170U-1BRS, PA5207U-1BRS, PABAS279, and PABAS282. Rated at 24.42Wh, it fits the connector and bay geometry of the affected models without modification.

  • Dynabook N514 and Satellite NB10 platform: These models share the same 11.1V battery rail, three-cell configuration, and locking tab connector. The BMS on each talks to the same BIOS charge controller, so one cell serves the full lineup without electrical or physical conflict.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on an NB10-A unit. The BMS communicated correctly with the BIOS, charge termination triggered cleanly at full capacity, and the protection circuit responded to over-discharge cutoff without fault flags.
  • First-install calibration on the Dynabook N514: After fitting this battery, run one full discharge 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 poor battery health immediately after fitting a new cell

The Dynabook BIOS reads health data from EEPROM on the battery controller, not from live voltage measurements. When a replacement cell arrives, the EEPROM data does not match the BIOS's stored charge history for the previous pack. This mismatch triggers a "poor health" or "replace battery" flag within the first boot. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% lets the BIOS re-write the learn cycle and clear the flag.

Laptop shuts down abruptly at 20–30% charge shown on the fuel gauge

This happens because the fuel gauge IC was calibrated against the old, degraded cell — not the new one. Under combined CPU and display load, the gauge's voltage-to-capacity curve is wrong, so it fails to predict the voltage cliff and the system cuts power before the displayed percentage reaches zero. The fix is two to three full discharge-and-charge cycles, which allow the fuel gauge IC to remap its curve against the new cell's actual voltage profile. After the third cycle the shutdown point should align with single-digit percentage readings.

Compatible Models

Dynabook N514 Satellite NB10 Satellite NB10-A Satellite NB10t Satellite NB10t-A Satellite Pro NB10 Satellite Pro NB10-A Satellite Pro NB10t Satellite Pro NB10t-A Satellite NB15 Satellite NB15-A Satellite NB15t Satellite NB15t-A Satellite Pro NB15 Satellite Pro NB15-A Satellite Pro NB15t Series TOSHIBA Satellite Pro NB15t-A

Replaces Part Numbers

PA5170U-1BRS PA5207U-1BRS PABAS279 PABAS282

Technical Specifications

Voltage11.1V
Amp Hours2200mAh
Capacity2200mAh
Rate24.42Wh
Net Weight166.2g /5.86 oz
Gross Weight316.2g /11.15 oz
Approximate Weight316.2g /11.15 oz
Dimension 206.82 x 36.00 x 21.40mm

Product Highlights

  • Brand: Toshiba
  • 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 Dynabook N514 BIOS says the new battery has the wrong Wh rating — it shows less than 24Wh. Is the cell faulty?

It is not faulty. The Wh figure the BIOS displays is pulled from EEPROM on the battery controller, and that value reflects the rated chemistry spec, not a live measurement of the installed cell. The discrepancy appears because the EEPROM on replacement cells sometimes carries a slightly different rated value than the original Toshiba pack. Run one full discharge-to-hibernate cycle followed by a full uninterrupted charge — the BIOS recalculates and logs the correct figure after the learn cycle completes.

The fuel gauge on the Satellite NB10 jumps erratically for the first few charges — 60%, then 45%, then back to 55% without the load changing. What is happening?

The fuel gauge IC on this platform was tracking the old cell's voltage-discharge curve. With a new cell installed, the IC has no accurate reference data yet and interpolates badly, causing the percentage to swing. This is a calibration gap, not a wiring or contact fault. Run two to three complete discharge-and-charge cycles — each cycle gives the gauge IC new data points — and the readings stabilise by the third cycle.

The Dynabook N514 battery stops charging at exactly 80% and will not go higher, even after several hours on AC. How do I get it to charge fully?

This is a BIOS-controlled charge limit, not a fault with the replacement cell. Toshiba's battery care utility, if installed, defaults to an 80% charge ceiling to reduce cell stress during long periods on AC power. Open the Toshiba Settings or Toshiba System Settings application, locate the Battery Care Mode or Eco Charge setting, and switch it to full charge mode. Once disabled, plug in and the battery will charge through to 100%.

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