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USAbatteries.com stocks 3 compatible replacement batteries for the Toshiba Satellite series, covering 3,545+ laptop configurations and 63 distinct part numbers. Replacement batteries in this category are priced from $57.99 to $58.99.

The Toshiba Satellite S series is a premium mid-range consumer laptop line introduced around 2012 and refreshed through 2016. It was built for shoppers who wanted multimedia performance, respectable gaming with Nvidia GeForce graphics, and better styling than budget machines, often with aluminum chassis and 14 to 17.3-inch displays. This category covers about 3545 compatible models spanning several years and chassis designs, some with optical drives and some without.

Satellite S series batteries run from 10.8 to 14.4 volts with capacity from about 31 to 98 Wh, all lithium-ion built in 4-cell and 6-cell configurations depending on the model. Part numbers vary by sub-series and year, so two similar machines can take completely different batteries. For example, an early 2012 to 2013 model often uses a 10.8V 6-cell pack, while a later “B” refresh of a similar 15.6-inch model moves to a 14.4V 4-cell pack, which is why you must match your exact model.

Always confirm your exact model number and the part number printed on your current battery before ordering.

Sub-Series

  • Satellite 305

Common Battery Part Numbers

PA5023U-1BRS 10.8V · 58.0Wh / 5200mAh · fits 526 models
PA3819U-1BRS 10.8V · 58.0Wh / 5200mAh · fits 513 models
PA3817U-1BRS 10.8V · 56.2Wh / 5200mAh · fits 330 models
PA3817U1BAS 10.8V · 98.0Wh / 8800mAh · fits 280 models
PA5110U-1BRS 10.8V · 58.0Wh / 5200mAh · fits 148 models
PA5184U-1BRS 14.4V · 31.7Wh / 2200mAh · fits 132 models

Toshiba Satellite Battery Specifications

Voltage range 10.8 V to 14.4 V
Capacity range about 31 Wh to 98 Wh
Cell chemistry Lithium-ion (3-cell to 6-cell)
Part numbers in this series 63
Compatible models covered 3,545+
Price range $57.99 to $58.99

Frequently Asked Questions

What battery does the Satellite 305 use?

The Satellite 305 uses a lithium-ion battery in the 10.8 to 14.4 volt range, with capacity from about 31 to 98 Wh depending on your exact build. Common matching part numbers across this line include PA5023U-1BRS, PA3817U-1BRS, and PA5184U-1BRS. Because the 305 spans different years and configurations, the correct pack varies, so check the part number printed on your original battery before you buy. Replacement batteries here run $57.99 to $58.99.

How do I find the right battery for my Satellite S model?

Find your full model number on the label on the bottom of the laptop, then match the part number printed on your original battery (it follows the PAXXXXU-1BRS format, such as PA3817U-1BRS or PA5110U-1BRS). Also check the voltage, since this line uses both 10.8V and 14.4V packs. Matching the exact part number is the most reliable method because 63 distinct part numbers cover this series and similar-looking models often take different batteries.

How much does a Satellite S replacement battery cost?

Replacement batteries for the Satellite S series cost between $57.99 and $58.99. The price is consistent across this line whether you need a 10.8V 6-cell pack or a 14.4V 4-cell pack. To make sure you order the right one at this price, match the part number from your original battery, such as PA3819U-1BRS or PA5184U-1BRS, rather than guessing from the model name alone.

Are Satellite S batteries interchangeable?

Not always. The Satellite S series uses 63 distinct part numbers across roughly 3545 models, and packs differ by voltage (10.8V versus 14.4V), cell count (4-cell versus 6-cell), and capacity (about 31 to 98 Wh). A battery from one model year may not fit or power another, even when the laptops look similar. Always match the exact part number, for example PA3817U-1BRS or PA5110U-1BRS, to confirm a battery works in your machine.

What differs between the Satellite S sub-series batteries?

The main differences are voltage, cell count, and whether the pack is removable or internal. Earlier models tend to use 10.8V 6-cell packs, while later refreshes often use 14.4V 4-cell packs with capacity up to about 98 Wh. Some earlier models have removable batteries, and later refreshes may use internal packs. Part numbers like PA5023U-1BRS and PA5184U-1BRS reflect these different families, so confirm your exact model and year.

Where do I find the battery part number?

The part number is printed on the original battery itself, following the PAXXXXU-1BRS format, such as PA3819U-1BRS or PA5110U-1BRS. If the battery is removable, take it out and read the label. You can also find your full laptop model number on the sticker on the bottom of the chassis, then cross-reference it. Matching this exact number is the surest way to pick from the 63 part numbers in this line.

Can I replace the Satellite S battery myself?

Often yes, especially on earlier models with a removable battery that releases from the bottom with a latch. Later refreshes in this line may use an internal pack, which requires removing the bottom panel and disconnecting a cable. Either way, confirm your exact model first and match the part number, such as PA3817U-1BRS or PA5184U-1BRS, so you have the correct pack on hand before you start.

What are the signs the battery needs replacing?

Watch for runtime dropping well below what you used to get, the laptop shutting down suddenly even though the charge reads above zero, or the system staying on only while plugged in. You may also see a battery health warning in Windows. If your runtime has fallen sharply on a 10.8V to 14.4V pack rated near its original 31 to 98 Wh, a fresh battery (priced $57.99 to $58.99) usually restores normal use.

Related Categories

Last updated: June 2026. Compatibility data verified before publishing.

Toshiba Satellite S Laptop Batteries

Toshiba S75A7221 Battery for Satellite S75-A

In stock

Original price was: $115.99.Current price is: $57.99.
SKU: TS-S75A7221
Voltage10.8V
BrandToshiba Compatible
Capacity56.2Wh / 5200mAh
Part NumberS75A7221