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What type of battery does a Subaru Legacy use?

The Subaru Legacy, a popular midsize sedan, typically uses a 12-volt lead-acid battery as its primary power source. This type of battery is a standard feature in most modern automobiles, providing the necessary electrical current to start the engine and power various electrical components within the vehicle.


Understanding the Subaru Legacy's Battery


The Subaru Legacy, like many other vehicles, relies on a 12-volt lead-acid battery to perform several critical functions. This battery is responsible for starting the engine, powering the vehicle's electrical systems, and maintaining the charge for the alternator. The specific battery size and type may vary depending on the model year and trim level of the Subaru Legacy, but the general characteristics remain the same.


Lead-Acid Batteries in Automobiles


Lead-acid batteries are the most common type of automotive batteries used in modern vehicles, including the Subaru Legacy. These batteries consist of lead plates immersed in a sulfuric acid electrolyte solution, which generates the necessary electrical current to power the vehicle's electrical systems. Lead-acid batteries are known for their reliability, affordability, and ease of maintenance, making them a popular choice for automotive applications.


Maintaining the Subaru Legacy's Battery



  • Regularly check the battery's charge level and ensure it is properly maintained.

  • Replace the battery if it is no longer holding a charge or if it is more than 3-5 years old.

  • Avoid leaving electrical components running when the engine is off, as this can drain the battery.

  • Consider using a battery charger or maintainer during extended periods of non-use to keep the battery in good condition.


By understanding the type of battery used in the Subaru Legacy and following proper maintenance practices, Subaru owners can ensure their vehicle's electrical system remains reliable and efficient for years to come.

How do I know what model battery I have?


You may find the battery part number and battery serial number on the main battery label and/or small labels located on the side of battery pack. * On certain battery packs the battery part number is printed in small lettering.



How can I tell what type of battery is in my car?


How do i find out what type of battery my vehicle has?

  1. Battery label: Locate the battery on your vehicle (see below for information about how to find your battery).
  2. Battery terminals: Take a look at the battery terminals as they may have labels or markings.
  3. Owner's manual:
  4. Vehicle make and model:
  5. Ask a professional:



Is my battery AGM or STD?


You can also pop the hood and look for AGM on the battery's label. If your battery has raised vent caps, then it's not an AGM. (If your battery has a valve, that's not a guarantee it's an AGM.)



How much does it cost to replace the battery in a Subaru Legacy?


On average, the cost to replace a battery on a Subaru can range from $100 to $300 or more, including parts and labor.



Will Subaru replace my battery for free?


All Subaru Original Equipment Manufacturer (OEM) batteries are covered for three years or 36,000 miles, whichever comes first.



Do subarus require special batteries?


Your local Subaru dealer can keep track of your battery's health and make sure it is functioning optimally. Also, when it's time for a replacement, you should choose a Genuine Subaru Battery. It is designed to fit and power your specific model.



What kind of battery does a 2017 Subaru Legacy take?


2017 Subaru Legacy Vehicle Battery - 82110AJ10A - Genuine Subaru Part.



Is the Subaru battery AGM or standard?


The good news is, Subaru WRX owners don't have to keep using a flooded lead-acid battery. You can use a sealed, AGM OPTIMA battery, that can last up to three times as long as a flooded lead-acid battery! Nearly every Subaru WRX on the road uses a Group 35 battery, which OPTIMA offers in either a YELLOWTOP or REDTOP.



How long should a Subaru Legacy battery last?


between 3 to 5 years
Your Subaru battery will typically last between 3 to 5 years, but that can vary heavily depending on weather conditions type of battery, battery size, and driving habits. Even still, just because your battery isn't completely dead, doesn't mean it's operating at optimal levels.



What happens when Subaru battery dies?


The engine may not turn over at all, or it may turn over very slowly. In either case, if you have a Subaru dead battery, you will need to jump-start the car. The engine may turn over very quickly but not start. This is because the starter needs more power than a dead battery.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.