The 2009 Subaru Impreza uses a Super Start Premium Standard Flooded Top Post Battery, Group Size 26R. It features a cold cranking amps (CCA) rating of 575 and a reserve capacity (RC) of 90 minutes. This battery weighs about 29.5 lbs, ensuring it reliably powers your vehicle.
Upgrading the battery can enhance performance, especially for owners with aftermarket electronic accessories. A higher capacity battery can provide extra power for components like sound systems or lighting upgrades. It is essential to consider the physical dimensions when selecting a battery, as an improper fit can cause issues with installation and safety.
Additionally, it is wise to choose a battery from a reputable brand known for quality and reliability. Options from brands such as Optima, Interstate, and DieHard offer dependable alternatives. When purchasing, check for a warranty to safeguard your investment.
In the following sections, we will explore tips for installation, maintenance practices, and how to extend the lifespan of your Subaru’s battery. These insights will help ensure that you get the most from your battery choice and maintain optimal vehicle performance.
What Size Battery Does the 2009 Subaru Impreza Require?
The 2009 Subaru Impreza requires a Group 35 (or 35R) size battery.
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Battery types:
– Flooded lead-acid battery
– Absorbent Glass Mat (AGM) battery
– Enhanced Flooded Battery (EFB) -
Important specifications:
– Cold Cranking Amps (CCA): 550-700 CCA
– Reserve Capacity (RC): 90-120 minutes -
Alternative perspectives:
– Some owners prefer AGM batteries for better performance.
– Others recommend standard flooded batteries for cost-effectiveness.
The selection of a battery for the 2009 Subaru Impreza can influence performance and longevity.
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Battery Types:
The types of batteries suitable for the 2009 Subaru Impreza include flooded lead-acid, AGM, and Enhanced Flooded Batteries. The flooded lead-acid battery is the most common and is generally cost-effective. It uses liquid electrolyte and requires regular maintenance, such as checking water levels. AGM batteries, on the other hand, are sealed and resistant to vibration, making them suitable for various driving conditions. EFB batteries are an improvement on traditional flooded batteries, offering better cycling capability for vehicles with stop-start technology. -
Important Specifications:
The specifications for CCA and RC are particularly crucial for ensuring reliable starting and performance. Cold Cranking Amps (CCA) measures the battery’s ability to start the engine in cold conditions; a range of 550-700 CCA is recommended for the 2009 Impreza, depending on the climate. Reserve Capacity (RC) indicates how long the battery can supply power without being charged. A range of 90-120 minutes is ideal for maintaining vehicle electronics during an unexpected failure. -
Alternative Perspectives:
Owners often have differing opinions on battery preferences. Some advocate for AGM batteries due to their enhanced performance and low maintenance requirements. For example, in colder climates, AGM batteries often outperform flooded options, reducing the likelihood of starting problems. Conversely, others prefer traditional flooded batteries for their lower cost, especially for drivers who use their vehicles sporadically. Some may argue that the investment in a new technology like AGM is unwarranted for everyday use. Customer reviews and ownership experiences can heavily influence these preferences.
How Do I Determine the Correct Type of Battery for My 2009 Subaru Impreza?
To determine the correct type of battery for your 2009 Subaru Impreza, you should consider the battery group size, cold cranking amps (CCA), and the battery type (lead-acid, AGM, or start-stop).
The following key points will help you make an informed choice:
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Battery group size: The 2009 Subaru Impreza typically requires a group size of 35. This means the battery will fit properly in the battery compartment and connect correctly with the terminals.
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Cold Cranking Amps (CCA): CCA measures a battery’s ability to start an engine in cold temperatures. For your Impreza, a battery with at least 500 CCA is recommended. This ensures adequate starting power in colder climates, as lower temperatures can affect battery performance.
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Battery type: You may choose between lead-acid batteries and absorbed glass mat (AGM) batteries. Lead-acid batteries are the standard option and often are less expensive. AGM batteries are more advanced and better suited for vehicles with a higher demand for electrical power. They are also more resistant to vibrations and can last longer.
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Maintenance requirements: Lead-acid batteries generally require more maintenance than AGM batteries. AGM batteries are sealed, requiring no water top-ups, while lead-acid batteries must be monitored for electrolyte levels.
By focusing on these specifications, you can confidently select the appropriate battery for your 2009 Subaru Impreza, ensuring reliable operation and optimal vehicle performance.
What Are the Detailed Specifications of the Battery Used in a 2009 Subaru Impreza?
The battery used in a 2009 Subaru Impreza is a lead-acid battery with specific specifications. This type of battery is designed to provide reliable starting power and support various electrical systems in the vehicle.
- Battery Type: Lead-acid
- Group Size: 35
- Cold Cranking Amps (CCA): 550
- Reserve Capacity (RC): 90 minutes
- Voltage: 12 volts
- Dimensions: Approximately 9.06 x 6.81 x 7.48 inches
- Maintenance: Typically requires little to no maintenance
Understanding the specifications of the 2009 Subaru Impreza’s battery offers insight into its performance and replacement options.
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Battery Type: The battery used is a lead-acid type. Lead-acid batteries are common in vehicles because they are cost-effective and can deliver high bursts of power needed for starting engines. This battery type consists of lead plates and an electrolyte solution, usually sulfuric acid and water.
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Group Size: The battery adheres to a group size of 35. This classification indicates the physical dimensions and terminal layout, which are essential for a proper fit in the car’s battery compartment. Group sizes are standardized by the Battery Council International.
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Cold Cranking Amps (CCA): The CCA rating of the battery is 550. This value indicates the battery’s ability to start the engine in cold temperatures. A higher CCA means better performance in freezing conditions.
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Reserve Capacity (RC): The reserve capacity of the battery is 90 minutes. This metric measures how long the battery can deliver power at a specific load if the alternator fails. A higher RC value is beneficial during unexpected situations.
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Voltage: The battery operates at a voltage of 12 volts. This voltage is standard for automotive batteries, facilitating the starting of engines and powering electrical systems.
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Dimensions: The dimensions of the battery are approximately 9.06 x 6.81 x 7.48 inches. These measurements ensure the battery fits securely in the engine compartment of the vehicle.
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Maintenance: The battery is designed to be maintenance-free. However, it is often recommended to check the battery terminals for corrosion and ensure a good connection periodically.
These specifications ensure the 2009 Subaru Impreza operates efficiently, providing reliable starting power and supporting its electrical components effectively.
What is the Group Size Designation for the 2009 Subaru Impreza Battery?
Group Size Designation refers to the specific battery size category that is compatible with certain vehicles. For the 2009 Subaru Impreza, the Group Size Designation is typically 34R, which indicates its dimensions and terminal configuration suitable for the vehicle.
The Battery Councils International provides definitions and standards for battery sizes, including group sizes, which help consumers choose the correct battery for their vehicles. This ensures compatibility for optimal performance.
The Group Size Designation takes into account several factors, including physical dimensions (length, width, height), terminal placement, and cold-cranking Amperes (CCA). Understanding this designation is crucial for ensuring the proper fit and functionality within the vehicle’s battery compartment.
According to the Consumer Product Safety Commission, various Group Size Designations exist across different vehicle models. This helps users identify compatible batteries that meet the electrical demands of their cars, like the 2009 Subaru Impreza.
Factors contributing to the need for specific battery sizes include vehicle design, engine demands, and electrical system requirements. These factors ensure that the battery can deliver adequate power for starting the engine and powering electrical components.
About 75% of battery-related issues arise from improper sizing, as per the Automotive Battery Testing and Evaluation Report. Selecting the correct battery group size can enhance performance and longevity, reducing the frequency of replacements.
Using the appropriate battery size can prevent potential damage to the vehicle’s electrical system. Incorrect battery use can lead to performance issues, increased repair costs, and potential safety hazards.
The broader implications of using the correct battery size span several dimensions. Economically, it can lead to reduced waste and lower replacement costs. Environmentally, proper disposal and recycling of batteries pose fewer risks if appropriately sized batteries are used.
For example, a correctly sized battery improves engine efficiency and reduces fuel consumption, contributing to overall vehicle performance. Additionally, it minimizes the environmental impact of discarded batteries.
Reputable organizations like the Interstate Batteries and the Battery Council International recommend following manufacturer specifications for battery sizes. Such specifications help ensure safety, reliability, and optimal performance.
Practices to mitigate battery size issues include regular maintenance checks, using battery management systems, and ensuring proper installation. Following these guidelines can prolong battery life, enhance vehicle performance, and support vehicle reliability.
What is the Cold Cranking Amps (CCA) Rating for the Battery in a 2009 Subaru Impreza?
Cold Cranking Amps (CCA) measures a battery’s ability to start an engine in cold temperatures. It represents the number of amps a battery can deliver at 0°F (-18°C) for 30 seconds while maintaining a voltage of at least 7.2 volts.
The Society of Automotive Engineers (SAE) provides guidelines for testing CCA ratings and underscores the importance of this metric in battery selection for vehicles.
CCA ratings are essential for starting engines in cold weather. A higher CCA rating indicates that a battery can provide more power for starting at low temperatures. This is particularly important for ensuring reliability in climates with harsh winter conditions.
According to the Auto Care Association, a typical CCA range for car batteries is between 400 and 800 amps, depending on the vehicle’s engine size and requirements.
Several factors can impact CCA ratings, including battery age, temperature, and condition. A battery’s CCA may decline over time or because of factors like extreme temperatures that affect chemical reactions within the battery.
Data shows that a battery rated with a CCA around 500-600 amps is suitable for a 2009 Subaru Impreza. This rating supports reliable cold starts, especially in areas with average winter temperatures.
Inadequate CCA ratings can result in engine starting issues, leading to frustration and time loss for drivers. Businesses may also face operational disruptions when vehicles fail to start.
The automotive industry recognizes the importance of battery performance in cold weather. Manufacturers encourage consumers to choose batteries with appropriate CCA ratings to prevent failure.
To address potential issues with cold starts, experts recommend regularly checking battery health and using a battery suited to the local climate. Following manufacturers’ specifications ensures optimal performance and longevity.
Investing in a quality battery maintenance system can help mitigate cold start problems. Technologies like battery warmers are also effective in enhancing performance in cold weather.
What Are the Recommended Replacement Options for the Battery in a 2009 Subaru Impreza?
The recommended replacement battery options for a 2009 Subaru Impreza include several reliable brands and specific battery sizes compatible with this vehicle.
- Group Size: 35
- Top Brands:
– DieHard
– Optima
– Odyssey
– Interstate - Battery Types:
– Lead-Acid
– AGM (Absorbent Glass Mat) - Cold Cranking Amps (CCA):
– Minimum recommended CCA: 550
When considering a replacement battery, it is important to evaluate various factors such as compatibility, performance, and brand reputation.
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Group Size: 35:
The term Group Size: 35 refers to the standardized size specification for batteries that fits the 2009 Subaru Impreza. Group size determines the physical dimensions, terminal configuration, and capacity. Batteries labeled as Group 35 typically measure approximately 9.06 inches long, 6.81 inches wide, and 8.87 inches tall. This size ensures a proper fit within the vehicle’s battery tray, preventing movement and potential electrical issues. -
Top Brands:
Reputable battery brands provide reliable performance and longevity. DieHard is known for its durability and has a good warranty. Optima specializes in AGM batteries that offer superior starting power and vibration resistance. Odyssey batteries are praised for their longevity and deep cycling capabilities, making them ideal for vehicles with added electrical demands. Interstate batteries are widely available and known for their reliability at competitive prices. -
Battery Types:
The choice between Lead-Acid and AGM (Absorbent Glass Mat) batteries is important. Lead-acid batteries are typically less expensive and work well for standard applications. AGM batteries, however, are more resistant to vibrations, have longer shelf life, and tend to perform better in extreme weather conditions. These characteristics make AGM batteries a recommended option for enthusiastic drivers or those who live in harsh climates. -
Cold Cranking Amps (CCA):
Cold Cranking Amps (CCA) is a measurement of a battery’s ability to start an engine in cold conditions. A minimum recommended CCA of 550 is essential for the 2009 Subaru Impreza, ensuring reliable starts during winter months. Higher CCA ratings can be particularly beneficial in colder regions, as they provide extra power to crank the engine efficiently.
In summary, selecting the right replacement battery for a 2009 Subaru Impreza involves understanding group sizes, considering reputable brands, choosing the appropriate battery type, and assessing CCA ratings for optimal performance in various conditions.
How Can You Upgrade the Battery in a 2009 Subaru Impreza for Better Performance?
Upgrading the battery in a 2009 Subaru Impreza for better performance involves choosing a higher capacity battery, ensuring proper installation, and maintaining the electrical system.
To achieve these improvements:
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Choose a higher capacity battery: Look for a battery with a greater amp-hour (Ah) rating. A standard Group 35 battery typically offers around 500 CCA (cold cranking amps). Consider batteries with at least 600 CCA for better starting power in cold conditions. According to Consumer Reports (2020), batteries with higher CCA ratings provide improved performance in extreme weather.
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Ensure proper installation: Follow the manufacturer’s guidelines for installation. Secure the battery tightly to prevent vibrations from damaging terminals and connections. Use corrosion-resistant terminals to enhance the longevity of the connection. According to a study by the Battery Council International (2019), improper installation can reduce battery life and performance.
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Maintain the electrical system: Regularly check the battery terminals for corrosion and clean them as needed. Ensure the alternator is functioning properly to maintain the battery charge. A well-maintained electrical system is crucial for battery longevity, as noted by the Automotive Battery Technical Council (2022).
By following these steps, you can enhance the performance and lifespan of your 2009 Subaru Impreza’s battery.
What Advantages Come with Upgrading the Battery for a 2009 Subaru Impreza?
Upgrading the battery for a 2009 Subaru Impreza offers several advantages, including improved performance, reliability, and functionality.
- Enhanced starting power
- Longer lifespan
- Better battery efficiency
- Increased compatibility with accessories
- Improved electrical system performance
Transitioning from these advantages, let’s explore each benefit in detail.
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Enhanced starting power: Upgrading the battery provides enhanced starting power. High-quality batteries deliver greater cold cranking amps (CCA), which measure the battery’s ability to start the car in cold conditions. This can significantly reduce the chance of your vehicle not starting during cold weather. Studies indicate that vehicles with upgraded batteries show a marked improvement in start reliability, especially in regions with harsh winter climates.
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Longer lifespan: An upgraded battery typically has a longer lifespan compared to standard batteries. Advanced technology in newer batteries allows for deeper discharges and faster charging times, leading to a longer usable life. For instance, many premium batteries have warranties ranging from three to five years, reflecting their expected durability. This can lead to lower replacement costs over time.
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Better battery efficiency: Upgraded batteries often provide better energy efficiency. These batteries can hold a charge longer, which is beneficial for vehicles with high electrical demands, such as those with advanced infotainment systems or additional lighting. Better efficiency means fewer charges and longer intervals between replacements.
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Increased compatibility with accessories: As vehicles accumulate additional electronic accessories, the demand on the battery increases. An upgraded battery can handle these added loads. For example, if you install a new sound system or additional lighting, a higher-capacity battery can support these upgrades without compromising performance.
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Improved electrical system performance: An upgraded battery can also enhance the overall performance of the vehicle’s electrical system. This includes more stable voltage and better operation of electrical components. Improved electrical performance translates into smoother operation of features like power windows, seats, and air conditioning. This is particularly important for drivers who rely heavily on these features.
Ultimately, upgrading the battery in a 2009 Subaru Impreza can significantly enhance the vehicle’s performance and reliability, making it a worthwhile investment.
What Key Factors Should You Consider When Selecting a Battery for the 2009 Subaru Impreza?
When selecting a battery for the 2009 Subaru Impreza, it is crucial to consider several key factors to ensure the appropriate fit and performance.
- Battery Group Size
- Cold Cranking Amps (CCA)
- Reserve Capacity (RC)
- Battery Type (Lead-Acid, AGM, etc.)
- Brand Reliability
- Warranty and Warranty Period
These factors balance each other, affecting battery performance, lifespan, and cost. Understanding their significance is essential for making an informed decision.
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Battery Group Size: The battery group size refers to the physical dimensions and terminal configurations of the battery. For the 2009 Subaru Impreza, the correct group size is typically 35, which ensures a proper fit in the battery compartment. Using the wrong size can lead to installation issues or inadequate electrical connections.
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Cold Cranking Amps (CCA): Cold Cranking Amps measure a battery’s ability to start an engine in cold temperatures. A higher CCA rating is necessary for colder climates. For the Subaru Impreza, a battery with at least 500 CCA is recommended to ensure reliable starting in winter conditions.
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Reserve Capacity (RC): Reserve Capacity indicates how long a battery can power vital components if the alternator fails. Batteries with higher RC will keep the vehicle’s electrical systems running longer during emergencies. For the Impreza, look for a battery with a reserve capacity rating of around 100 minutes.
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Battery Type (Lead-Acid, AGM, etc.): The battery type affects performance characteristics and maintenance. Absorbent Glass Mat (AGM) batteries are more resistant to vibration and have a longer lifespan but come at a higher cost than traditional lead-acid batteries. Choose based on your driving conditions and budget.
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Brand Reliability: Choosing reputable brands can significantly impact battery performance and longevity. Brands like Optima, DieHard, and Interstate have positive reputations. Reading customer reviews and professional ratings can help ensure that the selected battery meets high-quality standards.
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Warranty and Warranty Period: The length and coverage of the warranty can indicate the manufacturer’s confidence in their product. A longer warranty, such as three to five years, provides peace of mind in case of early battery failure. Always review warranty conditions to understand what is included.
By considering these factors, you can select a battery that best fits your 2009 Subaru Impreza, enhancing its performance and reliability.
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