Best Battery for Subaru Outback in 2020

The Subaru Outback is an amazing vehicle that has been a favorite of many users for a long time. The car is one of the best out there in terms of comfort and performance, given the price point.

To accompany such an amazing vehicle, and to get the best out of it, a good battery is of utmost importance. Ideally, you’d want a battery that can crank your car as well as power the electronics inside. No Worries at all as we have mentioned the best battery for Subaru Outback below so that you don’t have problem.

That is why, nowadays, dual purpose batteries are really popular. They can power your electronics and start your engine equally efficiently. 

While buying a battery, there’s a lot of things to be kept in mind. You can be tempted to go for a cheap option that’s easy on the pocket and it might really seem like a good investment at first but cheap batteries without proper warranty can cause some real trouble down the line and you would need to recondition the same which will be best option but still not that much sustainable.

Bad batteries can stop working without any prior sign and can end up having you stranded in the middle of nowhere. Now that’s not a good thing, is it?

But don’t worry. In this article, we’ll discuss the 5 best batteries for your Subaru Outback. We have found the best options in the market and we definitely have the perfect option for you, no matter what your priority is. 

5 Best Batteries For Subaru Outback

Best Overall Battery for Subaru Outback: Optima Batteries 8025-160 25 RedTop Starting Battery

Optima batteries are known for their special spiral AGM cell technology. Unlike other AGM batteries that have a plain plate of lead, Optima batteries have a spiral cell around which the electrolyte is present. 

Out of all the Optima battery series, the RedTop series features the best cranking power. The RedTop 8025-160 exhibits a whooping 720 CCA of cranking power. Good crankin power is of paramount importance when you live in a cold region. As CCA increases, the engine becomes easier to crank. Most OEM car batteries are designed for regular conditions. If you have demanding needs from your battery, it is always a good idea to upgrade to a better battery.

With 90 minutes of reserve capacity, the battery makes sure that your battery does not fail you even in the worst of conditions. But this battery may not be the best fit for you if you plan on using demanding third party electronics in your car. Regardless of the good cranking power, the RedTop does not possess good deep cycling capacities. If you want an all-rounder battery, Optima batteries have other options like the YellowTop series.

Read more about Optima 8025-160 RedTop


  • Spiral Cell AGM technology.
  • 720 CCA of cranking power.
  • Vibration resistant.
  •  90 minutes of reserve capacity.
  • Maintenance free


  • Maybe a bit too pricey for some consumers.
  • Not the best deep cycling capacity

Best Powerful Subaru Outback Battery: Odyssey 35-PC1400T Automotive and LTV Battery

The Odyssey 35-PC1400T is an absolute powerhouse of a battery with excellent dual purpose  capacities. The battery not only features a cranking power of 850 CCA accompanied by an amazing reserve capacity of 130 minutes, the battery also exhibits 65Ah of deep cycling capabilities under normal conditions.

These dual-purpose features make this battery one of the best batteries for the Subaru Outback. The battery is based on AGM technology and is completely sealed. The battery is theoretically maintenance free and extremely vibration resistant making it an excellent choice for rough terrains. One of the outstanding features of the battery however is its fast charging capacity. Being a 65 AH battery, the battery can still charge upto 100% in 4-6 hours normally. The battery also claims to perform 70% better than other deep cycle batteries in the market.

The only drawback of the battery is that Odyssey batteries tend to be priced slightly higher than most of its competitors. Although the price to performance ratio is amazing, the battery may still be a bit expensive for some users

Read more about Odyssey 35-PC1400T Automotive and LTV Battery


  • 850 CCA.
  • 130 minutes of RC.
  • 65Ah deep cycle capacity.
  • AGM technology.
  • Fast charging.


  • Moderately expensive.
  • Somewhat bulky. May not be compatible with all models.

Best Vibration Resistance Subaru Outback Battery: DieHard 38188 Group 34R Lead Acid Battery

Apart from being excellent dual purpose batteries, Die Hard batteries are known for their extreme vibration resistant features. The battery claims to offer 20x better vibration resistance than its competitors. 

The battery is a sealed AGM type and thus also maintenance free. In terms of performance, the battery exhibits a whopping 775 CCA of cranking power along with 120 minutes of reserve capacity. To top it all off, the battery also showcases a 55Ah rating for deep cycling purposes. 

All the features put together, along with a killer name, makes this battery a really good choice if you’re looking for something sturdy and durable. 775 CCA is a decent rating for most Subarus and the 55AH rating is pretty decent if you’re looking to get additional accessories


  • 775 CCA of cranking power.
  • 55Ah deep cycle capacity.
  • 120 minutes reserve capacity.
  • 20x better vibration resistance.
  • AGM technology.


  • Bulky.
  • Moderately expensive.

Best Subaru Outback Battery with Amazing Performance: Odyssey 25-PC1400T Automotive and LTV Battery

A bulkier variant of the last Odyssey product on this list, the 325-PC1400T packs the same excellent features as the last one. In addition however, the battery has even better specifications when it comes to performance. With a whopping 900 CCA, this battery provides you with one of the highest cranking battery powers in the market. 

Odyssey batteries are known for their excellent cranking power that provides excellent results even in cold weather. Either of the two batteries can be used in a Subaru Outback depending on your model. Both batteries belong to different battery groups and this difference can be used to optimize performance.


  • 900 CCA.
  • 130 minutes of RC.
  • 65Ah deep cycle capacity.
  • AGM technology.
  • Fast charging.


  • Moderately expensive.
  • Somewhat bulky. May not be compatible with all models.

Best Subaru Outback Battery with High Reserve Capacity: Odyssey 34-PC1500T Automotive and LTV Battery

Yet another product from the Odyssey brand, this battery provides a higher reserve capacity of 135 minutes along with 850 CCA of cranking power. Odyssey products are really a good fit for the Subaru Outback. The various battery sizes providing the same functionality gives the user to choose a battery according to his personal preferences. 

Although, overall Odyssey batteries are moderately expensive, they are a really good deal in the long run. They have a battery life of 3-10 years and come with a warranty of 36 months when bought from an authorized dealer.


  • 850 CCA.
  • 135 minutes of RC.
  • 65Ah deep cycle capacity.
  • AGM technology.
  • Fast charging.


  • Moderately expensive.
  • Somewhat bulky. May not be compatible with all models

How to know correct time to change Subaru Outback battery?

There are a lot of signs indicative of the condition of a car battery. In case of a Subaru, the ideal battery life for an average battery is 2-3 years. After this, the battery quality gradually starts to deteriorate and it is recommended to consider reinvesting in a new battery. But this of course, depends from battery to battery as some brands have more durable and better performance than other batteries,

AGM batteries are a good investment because they normally have a better lifespan than traditional flooded batteries. AGM batteries are normally more expensive than traditional batteries but they generally pay for themselves in the long run.

Good maintenance and proper handling can greatly affect a battery’s lifespan. However, here are some signs you should look for to know that it’s time to get a new battery.

  • The car takes longer to start than it did before. When you turn the key, you hear weird electrical noises and the car doesn’t start.
  • Electronics work just fine but starting the engine takes a lot more effort.
  • Presence of excessive corrosion on the battery terminals and the caps.
  • Low voltage(around 11V or less) across the battery terminals when fully charged.
  • Inability  to retain charge.

Subaru Outback Battery Sizes

The Subaru Outback originally supports a Group 25 battery. But if you are unable to find a 25 battery, you can also use a Group 24 or Group 34 battery.Before settling on a battery group, it is a good idea to sit down and understand your requirements from  the battery. Different battery groups may have different facilities and you should always try to optimize the size according to your personal preference.

How to find the best battery for Subaru Outback?

With so many options available in the market, all of them claiming to be the best choice for your Subaru Outback, it is easy to get overwhelmed. Choice fatigue is a real issue and we understand. Luckily, there’s an easy way of determining what’s the best battery for you. The idea is based around optimizing the battery for your personal preferences. All users have their unique requirements and usage conditions and there need not be an universal battery that gives the best result to everyone.

Before you decide on a battery for your Subaru, consider keeping the following points in mind. 


CCA or Cold Cranking Amps is the measure of the cranking power of your battery.

Naturally, you may be inclined towards getting yourself the battery with the highest cranking power available in the market but that need not always be the best idea. While it is true that having a good cranking power is beneficial, higher CCA batteries are usually more expensive. It  is always a good idea to understand exactly how much power you need and invest accordingly. 

The amount of cranking power you need mostly depends on factors like temperature and altitude. Cranking becomes harder at cold places and thus a higher CCA is required. The same is not true for warmer places. Understanding your environment will definitely help you make a better decision.

Manual Review

The first step to get a battery for your car is to understand your car and what better place to start than the manual itself?

Different cars have different specifications. It is very important to properly understand exactly which battery will your car be compatible with before going out and buying the battery. You’ll learn details about the engine type, understand the various areas where you need power and thus you’ll be able to make a better and more informed decision.


It is always a good idea to look for a warranty when buying a new car battery. Batteries run on chemical reactions and any unforeseen event may affect the battery chemically rendering the battery useless. A warranty protects you against such events where the fault lies in the manufacturing process itself. Batteries are unreliable in general and it is always a good idea to look for proper warranty before buying a battery to make sure your money is protected.


Looking for a good brand is always a good idea while buying a battery. Good brands provide warranty benefits and excellent customer support if something goes wrong. Branded batteries are generally more expensive than the cheap options that do not provide warranty but it is a good idea to invest in a branded battery as it really helps in the long run. 

How to change a Subaru Outback battery?

The steps to change a Subaru battery are pretty much the same as other cars. But before we get started, make sure you have safety gear on and you know what you’re doing. If you’re unsure about anything, consider consulting a professional.

Follow these steps to change your battery yourself.

  1. Locate your battery in your car. Make sure you have your replacement battery ready and charged if necessary.
  2. Once you have located the battery, start by loosening the bolts on the terminals. Different cars may have different systems.
  3. Once you’re ready to unplug the wires, start with the negative terminal which will be indicated by a black wire or a negative sign. Then remove the positive terminal wire.
  4. Loosen the latch that holds the battery in place and pull the battery out.
  5. Insert the new battery and tighten the latch again.
  6. Connect the negative and positive wires respectively.
  7. Double check for errors and you’re done.

Best Battery for Subaru Outback FAQ’s

  1. What battery does Subaru use?

    Normally, Subaru produces its own batteries for its cars but a consumer can change the battery once it dies out and upgrade the battery if he sees fit. 

  2. How long do Subaru Outback batteries last?

    A normal battery should last anywhere between 2-3 years but it’ll greatly depend on the usage and the environment in which the batteries are being used. It also depends on other factors such as brand and production quality. Often, car batteries last way longer than expected. 

  3. Why does my Subaru battery keep dying?

    All batteries have a lifespan. If you notice that your battery is incapable of holding the charge no matter how much you charge it, chances are that your battery is getting permanently sulphated and it is to look for a new battery.

  4. Are batteries covered under Subaru warranty?

    Yes, the batteries that come with your Subaru have a warranty too. But there are certain regulations you must follow to prevent the violation of the warranty. The warranty is breached if the battery is connected to third-party electronics or other accessories or if any physical damage is inflicted on the battery prior to inspection.

Final Words

The Subaru Outback is an excellent vehicle and in this article we have discussed the best batteries that go well with this car. The RedTop seems like a good choice but the other options are also very good.

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