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USAbatteries.com stocks 14 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 $56.99 to $58.99.

The Toshiba Satellite P series was Toshiba’s mainstream-to-performance laptop line, running from roughly 2007 through 2016 and aimed at multimedia enthusiasts, casual gamers, and creative users who wanted strong audio-visual performance and dedicated graphics. The lineup spans 15.6-inch performance models, 17.3-inch desktop replacements, and earlier transition designs, covering thousands of compatible configurations across nearly a decade of releases.

These batteries are lithium-ion, ranging from 10.8 to 14.4 V and about 31 to 98 Wh, with cell counts that typically run from 6-cell up to 9-cell extended options depending on the model. Part numbers vary by sub-series and production year, so two similar-looking machines often need different batteries. For example, a later Satellite P50-A from around 2013-2015 commonly uses the PA5110U-1BRS, while an earlier P305 from the P200/P300 era takes a different part entirely, 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	$56.99 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 V range, with common part numbers across the Satellite P category including PA3817U-1BRS and PA3819U-1BRS. Because Toshiba shipped different cells across model years, the safest move is to read the PA number on your current battery or the full model number on the bottom of the laptop, then match it exactly. Replacements in this category run from $56.99 to $58.99.

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

Find your full model number on the label on the bottom of the laptop (for example P55t-A5118 or P75-A7200), then check the PA part number printed on your original battery. Match that PA number to one of the 63 distinct part numbers in this category, such as PA5110U-1BRS or PA3817U-1BRS. Capacities range from about 31 to 98 Wh, so confirming both the model number and the PA number prevents ordering a battery that does not fit your machine.

How much does a Satellite P replacement battery cost?

Replacement batteries in the Satellite P category cost between $56.99 and $58.99. The exact price depends on which part number your model takes, since this line covers 63 distinct part numbers across capacities from about 31 to 98 Wh. Match your PA number, for example PA5184U-1BRS or PA3819U-1BRS, to see the price for your specific battery.

Are Satellite P batteries interchangeable?

No, Satellite P batteries are not freely interchangeable. With 63 distinct part numbers spanning voltages from 10.8 to 14.4 V and capacities from about 31 to 98 Wh, a battery built for one sub-series often will not fit or connect correctly in another. For example, a PA5110U-1BRS used in later P50-A models is not the same as the part used in an earlier P305. Always match the exact PA number on your original battery.

What differs between the Satellite P sub-series batteries?

The differences come down to voltage, capacity, cell count, and connector design across model years. Within this category voltage runs from 10.8 to 14.4 V and capacity from about 31 to 98 Wh, with 6-cell being standard and some 9-cell extended options. Later models often use parts like PA5110U-1BRS or PA5184U-1BRS, while earlier P-series machines use older families such as PA3817U-1BRS. That is why matching your exact PA number matters more than matching the series name.

Where do I find the battery part number?

Look at the printed label on your original battery, where the PA number appears (for example PA3819U-1BRS or PA5184U-1BRS). If the battery is internal and not easy to remove, check the label on the bottom of the laptop for the full model number, then use that to confirm the correct part. Either reference lets you match one of the 63 part numbers in this category, with prices from $56.99 to $58.99.

Can I replace the Satellite P battery myself?

Yes, many Satellite P owners can replace the battery themselves. Older models often use a removable pack that releases with a latch, while later slim designs may use an internal battery secured with screws that requires opening the bottom panel. Either way, power down the laptop first, confirm your PA number (such as PA3817U-1BRS or PA5110U-1BRS), and match it before installing. If your model has an internal battery, a small screwdriver and patience are all the setup you need.

What are the signs the battery needs replacing?

Common signs include runtime dropping sharply, the laptop shutting off unexpectedly even at moderate charge, the battery refusing to hold a full charge, or the system staying tied to the wall outlet. You may also see the charge percentage jump erratically. When you notice these, check your PA number (for example PA3819U-1BRS or PA5184U-1BRS) and match a replacement from this category, priced between $56.99 and $58.99, to restore reliable runtime.