Hey there, Subaru enthusiasts! If you're a proud owner of a 2017 Subaru Forester, you know how reliable and versatile these vehicles are. But even the most dependable cars need a little TLC from time to time, and one of the most common maintenance tasks is replacing the battery. When that day comes, it's crucial to choose the correct battery size to ensure your Forester starts smoothly and runs optimally. So, let's dive into the world of 2017 Subaru Forester batteries and get you equipped with all the knowledge you need!

Why the Right Battery Size Matters

Before we get into the specifics, let's talk about why choosing the right battery size is so important. Your car's battery isn't just there to start the engine; it also provides power to various electrical components, such as the lights, radio, and even the car's computer. Using the incorrect battery size can lead to a host of problems, including:

• Starting Issues: The most obvious issue is difficulty starting the engine, especially in cold weather.
• Electrical Problems: An undersized battery might not be able to handle the electrical load, causing flickering lights or other electrical malfunctions.
• Reduced Battery Life: Using the wrong battery can shorten its lifespan, meaning you'll have to replace it sooner.
• Damage to the Electrical System: In some cases, an incompatible battery can even damage your car's electrical system, leading to costly repairs.

The correct battery size, on the other hand, ensures that your Forester has the power it needs to operate reliably under all conditions. It also helps to prolong the life of the battery and protect your car's electrical system. So, taking the time to choose the right battery size is an investment in the long-term health and performance of your vehicle.

Understanding Battery Groups

Car batteries are categorized into "groups" based on their physical size, terminal placement, and overall capacity. These group numbers are standardized by the Battery Council International (BCI), making it easier to find the right battery for your vehicle. The 2017 Subaru Forester typically uses a Group 35 battery. This group is a common size for many Japanese vehicles, including Subaru models. However, it's always a good idea to double-check your owner's manual or consult with a trusted mechanic to confirm the correct group size for your specific vehicle.

Group 35 batteries are designed to provide the necessary power for the Forester's electrical system while fitting properly in the battery tray. They have specific dimensions and terminal configurations that ensure a secure and reliable connection. Using a different group size could result in a battery that doesn't fit properly, has the wrong terminal configuration, or doesn't provide enough power.

Finding the Right Battery for Your 2017 Subaru Forester

Okay, so now you know that a Group 35 battery is likely the right choice for your 2017 Subaru Forester. But how do you actually go about finding the perfect battery? Here are a few tips:

• Check Your Owner's Manual: Your owner's manual is a treasure trove of information about your vehicle, including the recommended battery size. Look for the section on the battery or electrical system to find the specific group number and specifications.
• Consult a Parts Store: Visit your local auto parts store and ask for a battery for a 2017 Subaru Forester. The staff will be able to look up the correct battery size and recommend suitable options.
• Use Online Resources: Many online retailers and battery manufacturers have tools that allow you to search for the right battery based on your vehicle's make, model, and year. Simply enter your car's information, and the tool will display compatible batteries.
• Consider Cold Cranking Amps (CCA): CCA is a measure of a battery's ability to start an engine in cold temperatures. For a 2017 Subaru Forester, you'll want a battery with a CCA rating of at least 600. If you live in an area with particularly cold winters, you might want to opt for a battery with an even higher CCA rating.
• Check the Battery's Terminals: Make sure the battery you choose has the correct terminal configuration for your Forester. The terminals should be located in the same position as the terminals on your old battery.

When you're shopping for a battery, it's also a good idea to consider the battery's warranty. A longer warranty indicates that the manufacturer has confidence in the battery's quality and reliability. Look for a battery with at least a two-year warranty for peace of mind.

Different Types of Batteries

When replacing your battery, you'll typically have a few different types to choose from. The most common types are:

• Lead-Acid Batteries: These are the most affordable and widely used type of car battery. They're reliable and provide good performance for most vehicles.
• AGM (Absorbent Glass Mat) Batteries: AGM batteries are a type of lead-acid battery that uses a special glass mat to absorb the battery acid. This design makes them more resistant to vibration and allows them to be mounted in any orientation. AGM batteries also tend to have a longer lifespan than traditional lead-acid batteries.
• Lithium-Ion Batteries: Lithium-ion batteries are the newest type of car battery. They're lighter and more powerful than lead-acid batteries, but they're also more expensive. Lithium-ion batteries are typically used in hybrid and electric vehicles.

For a 2017 Subaru Forester, either a lead-acid or AGM battery is a good choice. AGM batteries offer superior performance and durability, but they come at a higher price. If you're looking for the best value, a traditional lead-acid battery will likely suffice. However, if you want the longest possible lifespan and the best performance, an AGM battery is worth considering.

Installation Tips

Once you've chosen the right battery, it's time to install it in your Forester. If you're comfortable working on cars, you can likely do this yourself. However, if you're not confident in your abilities, it's always best to have a professional install the battery for you.

Here are a few tips for installing a car battery:

• Gather Your Tools: You'll need a wrench to remove the battery terminals and hold-down clamp, as well as a battery terminal cleaner to clean the terminals.
• Wear Safety Gear: Always wear safety glasses and gloves when working with car batteries. Batteries contain acid that can be harmful to your skin and eyes.
• Disconnect the Old Battery: Disconnect the negative terminal first, followed by the positive terminal. This will help prevent sparks.
• Clean the Terminals: Use a battery terminal cleaner to remove any corrosion from the terminals. This will ensure a good connection with the new battery.
• Install the New Battery: Place the new battery in the battery tray and secure it with the hold-down clamp. Connect the positive terminal first, followed by the negative terminal.
• Double-Check Your Work: Make sure the battery is securely installed and the terminals are properly connected before starting the car.

After installing the new battery, start the engine and let it run for a few minutes to allow the car's computer to adjust to the new power source. You may also need to reset the radio presets and other settings.

Maintaining Your Battery

To prolong the life of your new battery, it's important to perform regular maintenance. Here are a few tips:

• Keep the Terminals Clean: Regularly clean the battery terminals to remove any corrosion. This will ensure a good connection and prevent electrical problems.
• Avoid Short Trips: Short trips can drain the battery without giving it enough time to recharge. If you primarily drive short distances, consider using a battery charger to keep the battery fully charged.
• Turn Off Lights and Accessories: Make sure to turn off all lights and accessories when you turn off the car. Leaving these items on can drain the battery overnight.
• Get a Battery Test: Have your battery tested regularly to check its health. Most auto parts stores offer free battery testing.

By following these maintenance tips, you can help extend the life of your battery and ensure that your 2017 Subaru Forester starts reliably every time.

Conclusion

Choosing the right battery size for your 2017 Subaru Forester is essential for ensuring reliable performance and protecting your car's electrical system. By understanding battery groups, considering CCA ratings, and following the installation and maintenance tips outlined in this article, you can keep your Forester running smoothly for years to come. So, next time you need a new battery, remember this guide and make the right choice for your trusty Subaru!