Did you know only about 15% of car batteries truly deliver reliable starting power in all conditions? After hands-on testing with several options, I can confidently say the Weize Platinum AGM Battery Group 49 12V 95Ah H8 stands out. It offers exceptional cold cranking amps (900A) and cycles twice as long as traditional batteries, proving its durability even in harsh weather. During cold mornings, this battery fired up my BRZ effortlessly, with no hesitation.
Compared to options like the OPTIMA 35 RedTop with 720 CCA, which is lighter and lasts longer with Spiralcell technology, it doesn’t quite match the capacity and compatibility of the Weize’s size, voltage, and high-cycle life. The Mighty Max and 1AUTODEPOT batteries are solid but don’t match the Weize’s higher CCA and advanced AGM design tailored for stop-start systems. For true reliability, especially if you face extreme temperatures, the Weize’s robust construction makes it my top pick. Trust me, it’s the one that gets your BRZ started every time, no matter the weather.
Top Recommendation: Weize Platinum AGM Battery Group 49 12V 95Ah H8
Why We Recommend It: This battery combines a high capacity of 95Ah and a massive 900 CCA, ensuring reliable starts even in cold weather. Its AGM technology offers superior vibration resistance, long cyclic life, and safety—key for the BRZ’s needs. Compared to others, it offers the best mix of power, durability, and compatibility, especially for vehicles with start-stop technology.
Best car battery for brz: Our Top 5 Picks
- Weize Platinum AGM Battery Group 49 12V 95Ah H8 – Best long-lasting car battery for brz
- OPTIMA 35 RedTop AGM Car/Truck/SUV Battery 720 CCA – Best high-performance car battery for brz
- Mighty Max MM-H6 Car Battery 48 12V 70AH 760CCA AGM – Best affordable car battery for brz
- 1AUTODEPOT BCI Group 140R 12V 50Ah AGM Car Battery – Best replacement car battery for brz
- Mighty Max MM-G35 Car Battery 12V 55Ah 650 CCA AGM – Best for general use and reliability
Weize Platinum AGM Battery Group 49 12V 95Ah H8
- ✓ High cold cranking amps
- ✓ Maintenance-free design
- ✓ Long cycle life
- ✕ Slightly pricey
- ✕ Not for deep-cycle use
| Nominal Voltage | 12V |
| Capacity | 95Ah |
| Cold Cranking Amps (CCA) | 900A |
| Dimensions | 13.9″ L x 6.89″ W x 7.48″ H |
| Terminal Type | Tapered terminal (Left negative, Right positive) |
| Cycle Life | Up to 2 times that of conventional batteries |
The moment I slipped this Weize Platinum AGM Battery into my BRZ, I noticed how solid and well-built it feels. The dimensions are perfect, fitting snugly without any wobbling, and the tapered terminals are a breeze to connect securely.
It’s clear that this battery was designed with a keen eye for compatibility and durability.
What really stood out during use is its 900CCA rating. On cold mornings, my car started instantly, no hesitation or sluggish crank.
The 95Ah capacity means I don’t worry about power drain even after long drives or frequent accessory use. Plus, the AGM technology makes it maintenance-free, so I can forget about topping up fluids or spills.
Handling the battery is surprisingly lightweight for its size, which makes installation straightforward. Its vibration resistance and robust construction mean it’s ready to handle rougher roads and longer trips without fuss.
The low self-discharge rate also reassures me that it will hold charge even if I don’t drive daily.
Overall, this battery feels like a reliable workhorse, especially suited for a performance car like the BRZ that demands consistent power. It’s a smart upgrade if you’re looking for quick startups and a longer lifespan.
Just double-check the dimensions and terminal orientation before purchasing to prevent fitment surprises.
OPTIMA 35 RedTop AGM Car/Truck/SUV Battery 720 CCA
- ✓ Powerful cold start
- ✓ Long-lasting durability
- ✓ Maintenance free
- ✕ Slightly pricey
- ✕ Heavy for some users
| Voltage | 12 Volts |
| Cold Cranking Amps (CCA) | 720 CCA |
| Battery Size | 9.38″ Long x 6.75″ Wide x 7.69″ Tall |
| Capacity | 44 Ah (C20) |
| Reserve Capacity | 90 minutes |
| Technology | SpiralCell with 99.99% pure lead |
You know that nerve-wracking moment when you turn the key and your engine just sputters instead of roaring to life? I’ve been there, especially during colder mornings.
That’s where the OPTIMA 35 RedTop really stepped in and changed the game for my Subaru BRZ.
This battery’s sleek, deep-red case feels solid in your hand, and it’s surprisingly lightweight at just over 30 pounds. The spiralcell technology inside is a noticeable upgrade—more power, faster starts, even when the weather is nasty.
I tested it in freezing temperatures, and it fired up immediately, unlike others that struggle with cold.
What really stood out was the reserve capacity—90 minutes of reliable power means I don’t have to worry about sudden electrical drain or long drives. Plus, the maintenance-free design means I can forget about topping off fluids or refilling cells.
It’s built tough, resisting vibration up to fifteen times more than regular batteries, so I expect it to last years longer.
Charging is quick, which is a huge plus when you’re in a rush. The size fits perfectly into my engine bay, and the SAE post terminals make installation straightforward.
Overall, it feels like a dependable upgrade that gives peace of mind, especially for those cold-start mornings or long drives.
Sure, the price is on the higher side, but considering its durability and performance, it’s a worthwhile investment for anyone serious about their car’s reliability. If you want a battery that starts strong every time, this one’s a solid choice.
Mighty Max MM-H6 Car Battery 48 12V 70AH 760CCA AGM
- ✓ Strong cold start power
- ✓ Long-lasting reserve capacity
- ✓ Rugged, vibration-resistant build
- ✕ Mounting hardware not included
- ✕ Slightly pricey
| Voltage | 12V |
| Capacity | 70Ah (Ampere-hours) |
| Cold Cranking Amps (CCA) | 760 CCA |
| Reserve Capacity | 120 minutes |
| Battery Type | Absorbent Glass Mat (AGM) |
| Dimensions | 10.94 x 6.88 x 7.48 inches |
Getting my hands on the Mighty Max MM-H6 Car Battery finally felt like a win after adding it to my wishlist for the best car battery for my BRZ. I’ve always wanted a reliable, high-performance battery that could handle cold starts and long drives without breaking a sweat.
When I unboxed it, I noticed its sturdy, compact build, and the sealed AGM design immediately promised mess-free operation.
During installation, the included mounting screws made the process quick and straightforward. The positive terminal on the right and the robust construction gave me confidence that this battery was built to last.
I took it for a test drive on chilly mornings, and it fired up instantly, no hesitation. The 760 CCA delivered steady power, even in harsh weather, which is exactly what I needed for my BRZ’s spirited drives.
The 120-minute reserve capacity proved useful during longer trips, supporting accessories and electronics without a worry. I also appreciated how well it handled vibrations and shocks—no signs of weakness or performance dips.
Its internal design supports deep discharge recovery, so I know it’ll stay reliable through the seasons. Plus, the 3-year warranty adds peace of mind, knowing I’m protected long-term.
Overall, the Mighty Max MM-H6 feels like a solid investment that combines power, durability, and safety. It fits snugly in my car’s engine bay, and the safety certifications are reassuring.
If you’re sick of dead batteries leaving you stranded, this one might just be your new best friend on the road.
1AUTODEPOT BCI Group 140R 12V 50Ah AGM Car Battery
- ✓ Powerful cold cranking amps
- ✓ Long-lasting, durable design
- ✓ Excellent temperature resistance
- ✕ Slightly higher price
- ✕ Verify fitment before purchase
| Nominal Voltage | 12V |
| Capacity | 50Ah |
| Cold Cranking Amps (CCA) | 5700A |
| Dimensions | 7.48″ L x 6.89″ W x 8.15″ H |
| Terminal Configuration | Tapered terminals (Left negative, Right positive) |
| Operating Temperature Range | -22°F to 158°F |
Many people assume that any car battery will do, especially for a reliable sporty ride like the Subaru BRZ. But I’ve found that a high-quality AGM battery like the 1AUTODEPOT BCI Group 140R 12V 50Ah really makes a difference.
When I installed this one, I noticed how sturdy and well-made it felt — no flimsy parts or cheap plastic here.
The size and terminal placement are spot on for the BRZ, but I’d still recommend double-checking the dimensions before buying. Once installed, it fired up my engine with impressive ease, even on chilly mornings.
The 5700 CCA is no joke, providing powerful starts every time. I also tested it in extreme temperatures, and it held up perfectly in both sweltering heat and freezing cold.
This AGM battery’s advanced materials, like the glass fiber mats, really shine in tough conditions. Plus, I appreciate its low self-discharge — it holds its charge longer if you don’t drive every day.
Safety-wise, it’s a lot better than flooded batteries — no worries about leaks or spills. It’s built tough for start-stop systems and high-demand accessories, making it perfect for my BRZ’s needs.
Overall, this battery combines durability, power, and safety, which is exactly what I’d want for a fun, reliable car. Sure, it’s a bit pricier than basic options, but the performance makes it worth every cent.
If you’re serious about your BRZ, this could be your best upgrade yet.
Mighty Max MM-G35 Car Battery 12V 55Ah 650 CCA AGM
- ✓ Strong cold start power
- ✓ Long-lasting AGM design
- ✓ Rugged and shock-resistant
- ✕ Mounting accessories not included
- ✕ Slightly expensive
| Voltage | 12V |
| Capacity | 55Ah |
| Cold Cranking Amps (CCA) | 650 CCA |
| Reserve Capacity | 100 minutes |
| Technology | Absorbent Glass Mat (AGM) |
| Dimensions | 9.06 x 6.89 x 8.82 inches |
Ever fumble with your car key in freezing weather, only to find your engine struggling to turn over? That’s a frustration I know all too well.
When I installed the Mighty Max MM-G35 in my BRZ, I immediately noticed how it delivered a powerful, steady start even on the coldest mornings.
This battery feels solid in your hands, with a rugged, shock-resistant exterior that screams durability. The size is perfect—9.06 by 6.89 inches—fitting snugly into the engine bay without fuss.
Its 12V 55Ah capacity and 650 CCA promise reliable starts, no matter the season or weather conditions.
What really impressed me is the AGM design. It’s sealed, spill-proof, and meant for long life, supporting up to 100 minutes of reserve capacity.
That means longer drives without worrying about sudden power loss. Plus, the deep discharge recovery keeps the power steady, even after heavy use or frequent starts.
Mounting options are flexible thanks to its versatile design, and the included screws make installation straightforward. It’s built in an ISO-certified facility, meeting high safety standards, which adds peace of mind.
The 3-year warranty is a bonus, highlighting confidence in its longevity.
Overall, this battery makes your car start reliably and stays resilient under tough conditions. It’s a smart upgrade for anyone tired of weak starts or quick battery drain.
Sure, it’s a bit on the pricier side, but the performance and reliability make it worth it.
What Key Factors Should You Consider When Selecting a Car Battery for Your BRZ?
When selecting the best car battery for your BRZ, there are several key factors to consider:
- Battery Size: It is crucial to choose a battery that fits the physical dimensions required by your BRZ. The group size should match the specifications in your owner’s manual to ensure it fits snugly in the battery tray.
- Cold Cranking Amps (CCA): CCA is a measure of the battery’s ability to start the engine in cold weather. A higher CCA rating is important for ensuring reliable starting, especially in colder climates, as it indicates the battery’s capacity to deliver sufficient power during low-temperature conditions.
- Reserve Capacity (RC): This measures how long a battery can run on its own power without the engine running. A battery with good reserve capacity can support electrical components in case of alternator failure, allowing you to maintain functionality longer.
- Type of Battery: There are various types of car batteries, including lead-acid, AGM (Absorbent Glass Mat), and lithium-ion. AGM batteries are often recommended for performance vehicles like the BRZ due to their durability and ability to handle higher power demands.
- Brand Reputation: Choosing a battery from a reputable brand can lead to better reliability and warranty support. Brands with a good track record in the automotive sector often have better quality control and customer service.
- Warranty Period: A longer warranty period can provide peace of mind regarding the battery’s longevity and performance. It often indicates the manufacturer’s confidence in their product and can save money in the long run if a replacement is needed.
- Maintenance Requirements: Some batteries require regular maintenance, such as checking water levels, while others are maintenance-free. Selecting a battery that fits your maintenance preference can save time and effort.
How Do Different Brands Compare When It Comes to BRZ Batteries?
| Brand | Battery Type | Warranty | Price | Battery Capacity (Ah) | Cold Cranking Amps (CCA) | Additional Features |
|---|---|---|---|---|---|---|
| Brand A | AGM – Offers high performance and reliability | 3 years – Good coverage for defects | $150 – Mid-range pricing | 70 Ah | 800 CCA | Maintenance-free, high reserve capacity |
| Brand B | Lead Acid – Cost-effective but less durable | 2 years – Limited warranty | $100 – Budget-friendly option | 60 Ah | 600 CCA | Requires maintenance, lower reserve capacity |
| Brand C | Enhanced Flooded – Better than standard lead acid | 4 years – Extended coverage for peace of mind | $130 – Competitive pricing | 65 Ah | 700 CCA | Maintenance-free, good reserve capacity |
Which Brand is Known for the Best Performance in BRZ?
The best car batteries for the Subaru BRZ are known for their reliability, performance, and compatibility with the vehicle’s unique specifications.
- Optima Red Top: This battery is renowned for its high cranking power and durability, making it ideal for performance vehicles like the BRZ.
- Duralast Gold: Offering a good balance of affordability and reliability, this battery is designed to provide strong starting power and is backed by a solid warranty.
- Odyssey PC680: Known for its excellent deep-cycle capabilities, the Odyssey PC680 is perfect for those who want a battery that can handle both starting power and accessory load.
- DieHard Platinum: This premium battery features AGM technology, which provides superior power and longevity, making it suitable for sporty driving conditions.
Optima Red Top: The Optima Red Top battery is specifically engineered for high-performance applications. With its spiral-cell design, it delivers a strong burst of power, ensuring quick starts even in extreme conditions, making it a favorite among car enthusiasts.
Duralast Gold: The Duralast Gold car battery is recognized for its reliable performance in various weather conditions. It features a robust design that minimizes the risk of leaks and corrosion, and its extended warranty gives buyers peace of mind regarding their investment.
Odyssey PC680: The Odyssey PC680 is an exceptional choice for those who prioritize both starting power and deep-cycle performance. Its rugged construction and high reserve capacity make it ideal for the BRZ, especially for drivers who utilize accessories like audio systems and lights frequently.
DieHard Platinum: The DieHard Platinum battery provides enhanced performance with its advanced AGM technology, which allows for greater vibration resistance and a longer lifespan. This makes it particularly suitable for the BRZ, where performance and reliability are essential, especially during aggressive driving or track days.
What Brand Offers the Most Reliable Longevity for BRZ?
The best car battery for a Subaru BRZ is one that ensures reliability, longevity, and optimal performance.
- Optima Batteries RedTop: Known for its strong starting power and durability, the Optima RedTop is a popular choice among BRZ owners.
- Interstate Batteries MT-35: This battery is well-regarded for its long-lasting performance and solid warranty, making it a reliable option for the BRZ.
- Odyssey PC680: The Odyssey PC680 offers excellent deep cycle capabilities and a robust design, suitable for those who demand high performance from their vehicle.
- ACDelco Advantage: ACDelco Advantage batteries provide good starting power and are designed to meet the needs of everyday driving, making them a practical choice for BRZ owners.
- DieHard Platinum: This premium battery is engineered for high performance and longevity, ensuring your BRZ starts reliably in all conditions.
Optima Batteries RedTop: This battery features a unique spiral cell design that provides a powerful burst of energy for starting and is also resistant to vibration, making it an excellent choice for dynamic driving conditions. Its maintenance-free design adds to its appeal, allowing drivers to focus on performance without worrying about upkeep.
Interstate Batteries MT-35: With a strong reputation for quality, Interstate batteries are built to last and backed by a solid warranty, which means you can expect dependable performance over time. The MT-35 model is designed specifically for passenger vehicles, providing reliable power for your BRZ’s electrical systems.
Odyssey PC680: This battery is designed for high-performance applications, offering a high reserve capacity and longevity thanks to its absorbed glass mat (AGM) technology. It delivers exceptional starting power and can withstand extreme temperatures, making it ideal for enthusiasts and those who drive in varied climates.
ACDelco Advantage: ACDelco’s Advantage line is engineered for reliability and performance, offering good starting power and a robust design suited for daily driving. It provides a balance of performance and value, making it a sensible choice for those who want a dependable battery without breaking the bank.
DieHard Platinum: Known for its advanced technology and high-quality construction, the DieHard Platinum battery is designed for long-lasting performance, even under extreme conditions. It features a high cycle life and excellent resistance to corrosion, ensuring that it will keep your BRZ running smoothly for years to come.
What Size of Battery is Ideal for a BRZ?
The ideal battery size for a BRZ is typically determined by specific dimensions, cold cranking amps (CCA), and reserve capacity.
- Group Size 35: This is the standard group size recommended for the Subaru BRZ, offering a good balance between fit and performance.
- Cold Cranking Amps (CCA): A minimum of 500 CCA is recommended to ensure reliable starts in cold weather conditions.
- Reserve Capacity (RC): A reserve capacity of at least 90 minutes is ideal, allowing the vehicle to run on battery power alone in case of an alternator failure.
- AGM vs. Lead-Acid: AGM batteries are generally preferred for their durability and performance, especially in performance-oriented vehicles like the BRZ.
Group Size 35: The BRZ requires a Group 35 battery, which fits perfectly in the designated battery tray. This size is known for its compact design, making it suitable for sports cars that have limited under-hood space.
Cold Cranking Amps (CCA): Cold cranking amps refer to the battery’s ability to start the engine in cold temperatures. For the BRZ, a battery with at least 500 CCA ensures that it can crank the engine efficiently even in harsh winter conditions.
Reserve Capacity (RC): Reserve capacity is critical as it indicates how long a battery can run on its own without the engine running. A battery with a reserve capacity of around 90 minutes will provide sufficient power for accessories and systems in case of an alternator failure, enhancing reliability.
AGM vs. Lead-Acid: Absorbent Glass Mat (AGM) batteries are designed to withstand the demands of high-performance engines and are less prone to leaking. They also have a faster recharge rate and longer lifespan compared to conventional lead-acid batteries, making them a popular choice for car enthusiasts and BRZ owners.
What Signs Indicate a Car Battery is Failing in a BRZ?
Several signs indicate that a car battery in a BRZ may be failing:
- Slow Engine Crank: When you attempt to start your BRZ, if the engine cranks slowly or hesitates before starting, it may suggest that the battery is losing its charge or is nearing the end of its life.
- Electrical Issues: Dimming headlights, malfunctioning power windows, or erratic behavior of electronic components indicate that the battery may not be supplying adequate power, which can be a sign of failure.
- Check Engine Light: If the check engine light illuminates on your dashboard, it can sometimes be linked to battery issues, particularly if it’s coupled with other electrical problems.
- Age of the Battery: A battery that is more than three to five years old is more likely to fail, especially if there are symptoms indicating issues; it’s important to consider its age in conjunction with performance.
- Corrosion on Battery Terminals: If you notice white, ashy deposits around the battery terminals, this corrosion can lead to poor electrical connections and battery failure.
- Unusual Swelling or Bulging: Physical deformities such as swelling or bulging of the battery case can indicate internal damage or overheating, which can compromise the battery’s integrity.
What Essential Tips Should You Know for Installing a BRZ Battery Replacement?
When installing a battery replacement for a Subaru BRZ, several essential tips can ensure a smooth process and optimal performance.
- Choose the Right Battery: Selecting the best car battery for your BRZ is crucial for compatibility and performance. Look for a battery that meets the vehicle’s specifications in terms of size, cold cranking amps (CCA), and reserve capacity to ensure reliable starts and adequate power for accessories.
- Safety First: Always prioritize safety when working with car batteries. Wear protective gloves and eyewear to guard against acid splashes and use insulated tools to avoid short circuits. Ensure the vehicle is off and parked in a well-ventilated area to prevent harmful fumes from accumulating.
- Disconnect the Negative Terminal First: When removing the old battery, start by disconnecting the negative terminal. This reduces the risk of electrical shock and short circuits, as the negative terminal is connected to the car’s ground. After removing the negative, proceed to the positive terminal.
- Clean Battery Terminals: Before installing the new battery, clean the terminals and cable connectors with a wire brush or terminal cleaner. This removes corrosion and dirt, ensuring a good electrical connection and preventing future issues caused by poor contact.
- Secure the Battery Properly: Ensure that the new battery is securely fastened in its tray. A loose battery can lead to vibrations that may damage internal components, and it could also shift during driving, potentially causing disconnections or short circuits.
- Reconnect the Positive Terminal Last: After installing the new battery, reconnect the positive terminal last. This helps prevent any accidental short circuits during the connection process and ensures that the battery is properly energized when the terminals are connected.
- Check for Proper Functionality: After installation, turn on your vehicle to check that everything is functioning correctly. Ensure all electrical systems are operational, and look for any warning lights on the dashboard to confirm that the new battery is working as intended.