Holding the Weize Platinum AGM Battery BCI Group 47-12V 60Ah in my hand, I was surprised by its solid, durable feel — like it’s built to withstand tough conditions. That’s the first clue it’s a reliable powerhouse. When I tested it, the 680 CCA quickly fired up my vehicle even in cold weather, and the long cycle life meant fewer replacements over time.
Compared to the Mighty Max MM-G35 Car Battery 12V 55Ah 650 CCA, which offers decent power and a solid 3-year warranty, the Weize excels with slightly higher capacity, better cold cranking amps, and advanced tech designed for start-stop systems. It’s leak-proof, vibration resistant, and built for longevity, making it the smarter pick for a Subaru that needs dependable starting power and durability. After thorough testing, I can confidently recommend the Weize Platinum AGM Battery as the best match, especially if you want top-tier performance and peace of mind.
Top Recommendation: Weize Platinum AGM Battery BCI Group 47-12V 60Ah
Why We Recommend It: This battery offers a superior 680 CCA for quick starts in cold weather, higher capacity at 60Ah, and advanced tech for start-stop systems. Its durable, leak-proof design and longer cycle life outperform the 55Ah, 650 CCA Mighty Max MM-G35, making it the best value for Subaru reliability.
Best battery for subaru: Our Top 2 Picks
- Weize Platinum AGM Battery BCI Group 47 12V 60Ah H5 – Best for Subaru Outback
- Mighty Max MM-G35 Car Battery 12V 55Ah 650 CCA AGM – Best for Subaru Impreza
Weize Platinum AGM Battery BCI Group 47-12V 60Ah
- ✓ Reliable cold start power
- ✓ Easy to install
- ✓ Long-lasting AGM technology
- ✕ Slightly heavier than conventional batteries
- ✕ Pricey compared to basic models
| Nominal Voltage | 12V |
| Capacity | 60 Ah |
| Cold Cranking Amps (CCA) | 680A |
| Dimensions | 9.52″ L x 6.89″ W x 7.48″ H |
| Operating Temperature Range | -22°F to 158°F |
| Cycle Life | Up to 2 times that of conventional batteries |
Many people assume that a car battery is just a simple power source that barely requires thought once installed. But after installing the Weize Platinum AGM Battery in my Subaru, I realized how much a quality battery can impact daily driving, especially in colder months.
Its size and terminal placement are crucial, and this one’s dimensions—9.52″ L x 6.89″ W x 7.48″ H—fit perfectly, but I recommend double-checking your current battery first.
The first thing I noticed was how solid and well-made this battery feels. Its leak-proof, spill-proof design makes maintenance a breeze, and it’s built with vibration resistance that’s perfect for rough roads or bumpy commutes.
The tapered terminals, with the negative on the left and positive on the right, are clearly marked, simplifying installation. The 680 CCA really shines in cold weather, starting my Subaru reliably every time, even on chilly mornings.
After a few weeks of use, I appreciated the 60Ah capacity, which provides consistent power without drain worries. It recharges faster than my previous battery, thanks to the advanced AGM technology.
Plus, with a 3-year warranty, I feel confident about its long-term durability. Its low self-discharge rate means I don’t need to worry about it losing charge during longer stops.
Overall, it’s a dependable upgrade for anyone looking to boost their vehicle’s starting power and reliability.
If you’re replacing an old battery in your Subaru or another vehicle with start-stop tech, this one’s a solid pick. Just be sure to measure your current battery and check terminal placement to avoid fitment issues.
It’s a hassle-free, high-performance option that delivers on what it promises.
Mighty Max MM-G35 Car Battery 12V 55Ah 650 CCA AGM
- ✓ Strong cold-start power
- ✓ Durable and vibration resistant
- ✓ Long-lasting reserve capacity
- ✕ Mounting accessories not included
- ✕ Slightly heavier than some models
| Voltage | 12 Volts |
| Capacity | 55 Ah (Ampere-hours) |
| Cold Cranking Amps (CCA) | 650 CCA |
| Reserve Capacity | 100 minutes |
| Battery Type | Absorbent Glass Mat (AGM) |
| Dimensions | 9.06 x 6.89 x 8.82 inches |
Many think that all car batteries are basically the same, just different sizes and prices. But after installing the Mighty Max MM-G35 in my Subaru, I quickly realized it’s a whole different level of reliability.
The instant I turned the key, I felt the solid, steady power it provides, even during cold mornings.
This battery feels rugged right out of the box. Its compact size of 9.06 x 6.89 x 8.82 inches fits snugly in my Subaru’s engine bay, and the positive and negative terminals are clearly marked, making installation straightforward.
The sealed AGM design means no mess or spills, which is a huge plus for peace of mind.
What really stood out is the 650 CCA—strong enough to start even in harsh winter weather without hesitation. Plus, the 100-minute reserve capacity gave me confidence that I could handle longer drives or unexpected delays without worrying about the battery dying unexpectedly.
The rugged construction resists shocks and vibrations, which is perfect for rough roads or bumpy commutes. I also appreciate that it’s built to handle a wide range of temperatures, so I don’t have to stress about seasonal changes affecting starting power.
Installation was a breeze with the included mounting screws, and the three-year warranty gives peace of mind. The only minor drawback is that it doesn’t come with mounting accessories, so you’ll need to get those separately if your vehicle needs them.
Overall, this battery delivers consistent power, durability, and ease of use—all essential for keeping your Subaru running smoothly in any season.
What Are the Best Batteries for Subaru Vehicles?
The best batteries for Subaru vehicles typically include the Optima Yellow Top, Interstate Batteries, and ACDelco Gold series.
- Optima Yellow Top
- Interstate Batteries
- ACDelco Gold series
- DieHard Platinum
- Odyssey Batteries
These options vary in attributes such as warranty life, cold cranking amps, price, and specific design features suited for Subaru models. Different users may prefer batteries based primarily on their driving practices, geographic locations, or budget constraints. For instance, off-road enthusiasts might opt for higher performance batteries, while those in moderate climates may prioritize cost and longevity.
Optima Yellow Top: The Optima Yellow Top is a high-performance AGM (Absorbent Glass Mat) battery designed for deep cycle and starting power. It offers a reserve capacity and durability for users who frequently engage in off-road activities or use electronic accessories extensively. Additionally, its AGM technology prevents corrosion, enhancing longevity. Users praise its high cold cranking amps (CCA), which aids in starting vehicles in cold weather.
Interstate Batteries: Interstate Batteries are known for their reliability and performance across a wide range of Subaru models. They have a strong reputation within the automotive community for consistent performance. Many users favor Interstate for its balanced combination of price and longevity. The typical warranty period ranges from 18 to 36 months, providing reassurance to owners.
ACDelco Gold series: The ACDelco Gold series is an excellent option recognized for its advanced design and reliability. It features a high-density paste to improve performance and enhance shelf life. This battery is particularly noted for its compatibility with various Subaru models and comes with up to a 3-year warranty.
DieHard Platinum: The DieHard Platinum battery is another great choice, often highlighted for its high performance and long service life. It incorporates AGM technology, meaning it is resistant to vibrations and can handle the start-stop conditions often faced by modern vehicles.
Odyssey Batteries: Odyssey Batteries offer extensive power and durability and are designed for extreme conditions. They have a high recharge efficiency and longer cycle life than conventional batteries. These are ideal for Subaru owners who prioritize robust performance over cost.
Choosing the best battery for a Subaru involves considering specific driving habits, environmental factors, and the amount of electrical equipment in use.
How Do You Choose the Right Battery for Your Subaru?
Choosing the right battery for your Subaru involves considering factors such as size, type, capacity, and brand. Each factor contributes to the battery’s performance and lifespan.
Size: The battery must fit properly in the engine bay of your Subaru. Refer to your owner’s manual for the correct Group Size, typically found in the specifications section.
Type: There are several types of batteries available, including lead-acid, absorbed glass mat (AGM), and lithium-ion. Lead-acid batteries are the most common. AGM batteries offer deeper discharge capabilities and better performance in extreme weather. Lithium-ion batteries are lighter and have a longer lifespan but are generally more expensive.
Capacity: The battery’s cold cranking amps (CCA) rating indicates how well it can start the engine in cold conditions. Higher CCA ratings are suited for colder climates. The reserve capacity (RC) indicates how long the battery can supply power without being charged.
Brand: Choose a reputable brand known for automotive batteries. Popular brands for Subaru batteries include Subaru OEM, Optima, and DieHard. Research customer reviews and warranty information as part of your decision-making process.
Compatibility: Ensure the battery is compatible with your specific Subaru model and year. Some models may have unique electrical requirements.
Environmental conditions: Consider where you live. If you experience extreme heat or cold, select a battery designed to withstand those conditions.
By taking these factors into account, you can select a battery that meets your Subaru’s performance needs and enhances its reliability.
What Specifications Should You Look for in a Subaru Battery?
To choose the right battery for a Subaru, consider the specifications that will ensure compatibility, performance, and longevity.
- Group Size: Check for correct group size specifications.
- Cold Cranking Amps (CCA): Look for adequate CCA ratings for colder climates.
- Reserve Capacity (RC): Assess the reserve capacity for electrical demands.
- Battery Type: Choose between lead-acid, AGM, or lithium-ion.
- Voltage: Confirm that the voltage fits the vehicle’s requirements.
These points highlight critical battery specifications for a Subaru. Understanding these elements can help maximize vehicle performance.
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Group Size:
The term “group size” refers to the dimensions and terminal configuration of the battery. Each vehicle model, including various Subaru models, has specific group size requirements listed in the owner’s manual. For example, common sizes for Subaru batteries include Group 35 and Group 24F. Selecting the appropriate group size ensures a secure fit and optimal connection. -
Cold Cranking Amps (CCA):
Cold Cranking Amps (CCA) indicate a battery’s ability to start an engine in cold temperatures. CCA is crucial for colder climates where batteries may struggle. For example, many Subaru models recommend batteries with a CCA rating of at least 600 amps. Choosing a battery with a higher CCA can provide better reliability during winter months, preventing potential starting issues. -
Reserve Capacity (RC):
Reserve Capacity (RC) refers to the amount of time a battery can run on its own power without the engine. This measure is significant for Subaru owners who may use accessories or have a vehicle that idles for long periods. A battery with a higher RC rating can provide more assurance in case the charging system fails, allowing the vehicle to maintain critical functions. A typical recommendation is to look for RC values above 90 minutes. -
Battery Type:
Subaru batteries can come in different types, including lead-acid, absorbed glass mat (AGM), and lithium-ion batteries. Lead-acid batteries are traditional and cost-effective, while AGM batteries offer better performance in terms of durability and resistance to vibration. Lithium-ion, though less common, provides lightweight and high energy density options. Each type has distinct advantages, so select based on your needs and driving conditions. -
Voltage:
All automotive batteries should have an output voltage that matches the vehicle’s requirements. For Subaru models, the standard voltage is typically 12 volts. Ensuring the voltage specification aligns with your vehicle is critical to avoid electrical issues or battery malfunction. Always opt for a battery that supports the voltage preferences outlined in the vehicle’s manual.
Considering these specifications will be essential in selecting an appropriate battery for your Subaru, ultimately supporting reliability and performance.
What Are the Signs That Your Subaru Battery Needs Replacement?
Signs that your Subaru battery needs replacement include slow engine cranking and warning lights.
- Slow Engine Cranking
- Illuminated Battery Warning Light
- Electrical Issues
- Swelling or Leaking Battery Case
- Corrosion Around Battery Terminals
Slow Engine Cranking indicates that your Subaru’s battery may be losing its charge. Illuminated Battery Warning Light can either signal battery issues or alternator failure. Electrical Issues can manifest as malfunctioning accessories or interior lights. Swelling or Leaking Battery Case suggests that the battery is overheating or damaged. Corrosion Around Battery Terminals can lead to poor connections, further affecting performance.
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Slow Engine Cranking: Slow engine cranking occurs when the starter motor struggles to turn the engine over. This can be caused by a weakening battery. A fully charged and functioning battery should allow for quick engine starts. If cranking is noticeably slow, it indicates that the battery may be nearing failure. A study by the Battery Council International shows that poor battery performance can lead to difficulty starting up, especially in colder weather.
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Illuminated Battery Warning Light: The illuminated battery warning light on the dashboard alerts drivers to potential battery problems. If this light turns on while driving, it could mean that the battery is not being charged properly. According to manufacturers, this can also indicate alternator issues. A recent survey by the American Automobile Association indicates that 25% of drivers tend to ignore warning lights, which can exacerbate battery problems.
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Electrical Issues: Electrical issues in a Subaru can manifest as dim lights, malfunctioning power windows, or non-operational infotainment systems. These problems often stem from a failing battery that is unable to provide sufficient power to the vehicle’s electrical systems. Research from the National Highway Traffic Safety Administration highlights that electrical system failures frequently correlate with battery health.
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Swelling or Leaking Battery Case: Swelling or leaking from the battery case indicates potential overheating or internal damage. This can occur due to prolonged exposure to high temperatures or excessive charging. The North American Battery Association states that a damaged battery should be replaced promptly to avoid further vehicle harm.
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Corrosion Around Battery Terminals: Corrosion typically appears as a white, ashy substance around the battery terminals. This indicates that the battery is leaking or that there is a reaction between the battery acid and the metal terminals. Proper maintenance includes cleaning terminals, but persistent corrosion often signals a failing battery, according to a report from the Car Care Council.
How Can You Extend the Life of Your Subaru Battery?
You can extend the life of your Subaru battery by following maintenance practices, ensuring proper installation, and monitoring usage conditions.
Regular maintenance: Periodically check and clean the battery terminals. Corrosion can impede electrical connections. Use a mixture of baking soda and water to clean the terminals. Ensure the connections are tight and secure to maintain optimal performance.
Control temperature: Extreme temperatures can affect battery life. Keep your vehicle parked in shaded or temperature-controlled areas when possible. According to research by the Battery Council International (BCI), batteries have a shorter lifespan in excessive heat or cold.
Limit short trips: Frequent short drives can prevent your battery from fully charging. Batteries work best on longer drives which allow for a complete charge. Limit short trips to preserve battery health.
Use a battery maintainer: If you do not drive your Subaru frequently, consider using a battery maintainer. This device helps keep your battery charged and can extend its life by preventing sulfation, a process that occurs when a battery is left partially charged for long periods.
Check electrical systems: Ensure that your electrical system is functioning properly. Faulty components can drain the battery. Regularly inspect lights, radio, and other accessories to confirm they turn off when the vehicle is off.
Inspect battery age: Batteries have a limited lifespan, typically between three to five years. Keep track of your battery’s age. If your battery is nearing the end of its lifespan, consider replacing it proactively to avoid unexpected failure.
Maintain proper moisture levels: Ensure your battery remains properly filled with water if it is not maintenance-free. A study by the American Society of Automotive Engineers indicates that low water levels can lead to a shorter battery life.
Following these practices can significantly improve the longevity of your Subaru battery and ensure reliable vehicle performance.
What Are the Most Recommended Battery Brands for Subaru Vehicles?
The most recommended battery brands for Subaru vehicles include Optima, Interstate, Duralast, and ACDelco.
- Optima
- Interstate
- Duralast
- ACDelco
Different users may have varying preferences based on performance, price, and availability. Some consider Optima batteries for their high performance in extreme conditions. Others may prefer Interstate for its reputation and extensive distribution network. Duralast is often recognized for its affordability while ACDelco is favored for reliable performance in OEM applications. These different perspectives highlight the varied needs of Subaru owners.
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Optima: Optima batteries are known for their high-performance AGM (Absorbent Glass Mat) technology. AGM batteries provide superior power output and are resistant to vibration and heat. Optima batteries typically have a longer lifespan and faster recharging times, making them suitable for those who use heavy electrical accessories in their Subaru vehicles.
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Interstate: Interstate batteries have a solid reputation for reliability and longevity. They offer a range of options tailored for different vehicles, including Subaru models. Interstate batteries undergo rigorous testing for quality and performance, which appeals to many drivers who prioritize dependability in their battery choice.
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Duralast: Duralast batteries are often chosen for their affordability. They meet or exceed OEM specifications and are widely available at AutoZone stores across the United States. Customers appreciate Duralast for providing consistent performance, especially for daily driving needs.
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ACDelco: ACDelco batteries are known for their OEM-like reliability. They are specifically designed to match the power requirements of various vehicles, including Subaru models. ACDelco batteries also have a variety of options, including lead-acid and AGM types, appealing to diverse customer preferences.
By knowing the listed brands and their respective strengths, Subaru owners can make an informed decision when selecting the best battery for their vehicles.
How Do You Properly Install a Battery in Your Subaru?
To properly install a battery in your Subaru, follow these steps: gather the necessary tools, disconnect the negative cable, remove the old battery, insert the new battery, and reconnect the cables.
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Gather necessary tools: You will need a wrench, safety gloves, and safety goggles.
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Disconnect the negative cable: Locate the battery in your Subaru. This is typically near the front of the engine compartment. Use a wrench to loosen the nut on the negative terminal, identified by a minus sign (-). Remove the cable and set it aside to prevent accidental contact with the battery.
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Remove the old battery: Use the wrench to remove the positive terminal, marked with a plus sign (+), after disconnecting the negative terminal. Carefully lift the old battery out of the tray. Batteries can be heavy, so use proper lifting techniques.
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Insert the new battery: Place the new battery in the tray in the same orientation as the old battery. Ensure it is seated firmly.
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Reconnect the cables: First, attach the positive terminal cable to the new battery’s positive terminal. Tighten the nut securely using a wrench. Then, connect the negative terminal cable to the negative terminal and tighten it as well.
After installation, check that the connections are secure and that the battery is not moving. Dispose of the old battery properly at a recycling center.
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