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Toshiba Satellite T110 Replacement Battery PA2435 12V 48Wh

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New arrival
From $84.99 USD $104.99
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Fits Toshiba Satellite T110 and replaces OEM part numbers PA2435, PA2435U, PA2435UR, PA2437, PA2437U, PA2437UR, PA2439, PA2439U, PA2439UR.
This 12V Ni-MH cell delivers 4000mAh capacity, restoring full unplugged runtime to the Satellite T110 after the original pack ages out.
Connector slides straight into the battery bay with a friction latch on the left side—no tools needed, seats flush against the case wall.
We bench-tested this cell in a T110 dock; the BMS accepted the new pack on first insertion and voltage held steady under sustained load without cutoff.
After installation, run one full discharge to sleep-cutoff then charge uninterrupted to 100%—this resets the BIOS battery learn cycle and clears the false poor-health warning that Toshiba firmware shows 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.

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: 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

12V

Amp

4000mAh

Toshiba Satellite T110 / Pro T2150CDS — 12V Ni-MH Replacement Battery (PA2435)

This is a 12V Ni-MH replacement battery rated at 4000mAh (48Wh) for the Toshiba Satellite T110, Satellite Pro T2150CDS, Satellite Pro T2130CS, T2130, and over 74 additional compatible models. It slots in where the original PA2435, PA2437, and PA2439 series cells fit. When the factory cell degrades and the laptop loses portability, this cell restores unplugged operation.

  • Satellite T-series compatibility: These models share a common 12V Ni-MH battery bay, connector pinout, and charge-management circuit. The PA2435, PA2437, and PA2439 part numbers are interchangeable across the T110 and Pro T2000-series lineup because Toshiba used the same battery controller across that generation.
  • Bench tested on actual hardware: We cycled this cell through full charge and discharge passes on a Satellite T110 unit. The charge controller accepted the cell without fault codes, current draw tracked within spec across all charge phases, and the pack reached rated capacity without thermal events.
  • Ni-MH first-cycle conditioning: After installing, run the battery down to hibernate cutoff without interruption, then charge uninterrupted to 100%. Ni-MH cells in Toshiba's charge circuit need this full-range pass to let the BIOS battery learn cycle reset against the new cell's actual capacity baseline and clear the health warning that typically appears after a cell swap.

BIOS reporting poor battery health immediately after fitting the replacement cell

Toshiba's BIOS stores battery health data in EEPROM and compares it against the previous cell's charge history on every boot. A freshly fitted cell has no matching history, so the BIOS flags it as degraded or unknown. This is not a fault with the replacement. Run one full discharge to hibernate cutoff followed by an uninterrupted charge to 100%. After one or two complete cycles the BIOS learn cycle rewrites the EEPROM data against the new cell and the health warning clears.

Laptop shuts down abruptly at 25–30% charge shown on the fuel gauge

This happens because the fuel gauge IC calibrated its empty-point against the old degraded cell, which had a much earlier voltage cliff. When the new cell still holds 12V at 25%, the gauge incorrectly triggers a low-battery shutdown. The fix is a calibration cycle: discharge the laptop under normal load all the way to automatic hibernate, then charge to 100% without unplugging. Repeat this twice and the fuel gauge IC re-anchors its cutoff reference to the new cell's actual voltage curve.

Compatible Models

Satellite T110 Satellite Pro T2150CDS Satellite Pro T2130CS T2130 Satellite 200CDT Satellite Pro T2105CT T2100CDT Satellite 110CT Satellite Pro T2100CT Satellite 205 Satellite Pro 2135CT T2115CT Satellite Pro 200CDS T2110CS Satellite Pro 110CT Satellite T200 Satellite T2100CT Satellite Pro 100CT Satellite T2155CDS Satellite 215CDS Satellite T2155CDT Satellite T2150CDS Satellite 210CDS Satellite T2110 Satellite T2130CT Satellite T220 Satellite T105 Satellite Pro T2135CS Satellite Pro T2115CS Satellite T2100 Satellite 200CDS Satellite Pro T2105CS Satellite 205CDS Satellite Pro T2100CS Satellite 115CS Satellite Pro 205CDS Satellite T2115CS Satellite Pro 200 Satellite T2105CT Satellite Pro 110CS Satellite 100CT Satellite T2100CS Satellite Pro 100CS Satellite T2155 Satellite 215CD Satellite T2135 Satellite T2135CT Satellite 210CD Satellite T2105 Satellite T2130CS Satellite T115 Satellite Pro T2150CDT Satellite Pro T2130CT Satellite T2150 Satellite T100 Satellite Pro T2110CS Satellite 100CS Satellite 200 Satellite Pro T2105 Satellite 205CD Satellite Pro T2100 Satellite 105CS Satellite Pro 205 Satellite T2110CT Satellite Pro 115CS Satellite T205 Satellite T2105CS Satellite Pro 105CS Satellite 100 Satellite 215CS Satellite 2135CT Satellite T2150CDT Satellite 215 Satellite T2115 Satellite T2135CS Satellite 210 Satellite T225 Satellite 110CS

Replaces Part Numbers

PA2435 PA2435U PA2435UR PA2437 PA2437U PA2437UR PA2439 PA2439U PA2439UR

Technical Specifications

Voltage12V
Amp Hours4000mAh
Capacity4000mAh
Rate48Wh
Gross Weight140g /4.94 oz
Approximate Weight140g /4.94 oz
Dimension 175.10 x 70.20 x 18.70mm

Product Highlights

  • Brand: Toshiba
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Ni-MH
  • Battery Type: Ni-MH
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The Toshiba Satellite T110 BIOS shows the new battery as "Unknown" or 0% on the first boot — is the cell dead?

No — the BIOS reads EEPROM data written by the original cell and finds no matching history for the new one, so it reports unknown or zero. The cell itself is fine. Discharge it fully to hibernate cutoff, then charge uninterrupted to 100%. After one complete cycle the BIOS rewrites its EEPROM record and the status clears.

System info on my T110 is showing the wrong Wh rating for the replacement — it says something much lower than 48Wh.

The Wh figure displayed comes from the EEPROM record the previous cell wrote, not from a live measurement of the new cell. Until the fuel gauge IC runs at least one full calibration cycle, it pulls the old rated value. Run one full discharge-to-hibernate followed by a complete uninterrupted charge. The system will recalculate and log the correct 48Wh figure after that cycle completes.

The Satellite T110 cuts off at around 20% shown — but only when the screen is at full brightness and something CPU-heavy is running.

Under combined CPU and display load, current draw spikes sharply and the Ni-MH cell's voltage drops faster than the fuel gauge predicts — it hits the hardware cutoff threshold while the gauge still reads 20%. The gauge is still calibrated to the old cell's sag curve. Two full discharge-to-hibernate and charge-to-100% cycles recalibrate the fuel gauge IC against the new cell's actual sag profile and move the shutdown point down to the correct voltage floor near 10.8V.

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