Top 10  battery for rx8 Our Picks

Top 10 battery for rx8 Our Picks

In this guide today, we are here with our in-depth review of the best battery for rx8. There are plenty of choices with multiple websites and therefore difficult to choose the best one. We recommend to read the guide and choose the one that suits your need as we review products based on the various options, features, price, quality and many more . To avoid this dilemma, we recommend to read this guide and review. It gives you insider information on how to choose the best battery for rx8 for your needs and budget.

In this in-depth review guide, we will discuss about the best battery for rx8.

A Quick Comparison of Our Favorites

1
Weize Platinum AGM Battery BCI Group 35 Automotive Battery, 100RC, 650CCA, 36 Months Warranty, Dimensions 9.06" L x 6.89" W x 8.82" H
Weize Platinum AGM Battery BCI Group 35 Automotive Battery, 100RC, 650CCA, 36 Months Warranty, Dimensions 9.06" L x 6.89" W x 8.82" H
9.7
2
Weize Platinum AGM Battery BCI Group 24F Automotive Battery, 120RC, 710CCA, 36 Months Warranty, Dimensions 10.75" L x 6.81" W x 8.98" H
Weize Platinum AGM Battery BCI Group 24F Automotive Battery, 120RC, 710CCA, 36 Months Warranty, Dimensions 10.75" L x 6.81" W x 8.98" H
9.4
3
OPTIMA® Batteries High Performance 35 REDTOP® Sealed AGM Car, Truck and SUV Starting Battery, 720 CCA, SAE Terminal, Maintenance Free, Versatile Mounting
OPTIMA® Batteries High Performance 35 REDTOP® Sealed AGM Car, Truck and SUV Starting Battery, 720 CCA, SAE Terminal, Maintenance Free, Versatile Mounting
9
4
Mighty Max Battery MM-G35 Start and Stop Car BCI Group Size 35 12V 55Ah, 100RC, 650 CCA Rechargeable AGM Car Battery
Mighty Max Battery MM-G35 Start and Stop Car BCI Group Size 35 12V 55Ah, 100RC, 650 CCA Rechargeable AGM Car Battery
8.9
5
1AUTODEPOT BCI Group 24F Car Battery, 12V 70Ah Automotive Battery Premium Maintenance Free AGM Batteries, 710CCA, 120RC, 36 Months Warranty
1AUTODEPOT BCI Group 24F Car Battery, 12V 70Ah Automotive Battery Premium Maintenance Free AGM Batteries, 710CCA, 120RC, 36 Months Warranty
8.4
6
OPTIMA® Batteries High Performance D35 YELLOWTOP® Dual Purpose Sealed AGM Car, Truck and SUV Battery, 620 CCA, Maintenance Free, Versatile Mounting
OPTIMA® Batteries High Performance D35 YELLOWTOP® Dual Purpose Sealed AGM Car, Truck and SUV Battery, 620 CCA, Maintenance Free, Versatile Mounting
8.1
7
ML8-12 - 12 Volt 8 AH, F1 Terminal, Rechargeable SLA AGM Battery
ML8-12 - 12 Volt 8 AH, F1 Terminal, Rechargeable SLA AGM Battery
7.9
8
Key Fob Battery Replacement for Mazda CX-5 (13-19), Mazda3 (04-18), Mazda6 (03-18), CX-9 (07-19), MX-5 Miata (01-19), CX-3 (16-20), CX-7 (07-12) Remote Fob (Check Fitment Guide) Pack of 2
Key Fob Battery Replacement for Mazda CX-5 (13-19), Mazda3 (04-18), Mazda6 (03-18), CX-9 (07-19), MX-5 Miata (01-19), CX-3 (16-20), CX-7 (07-12) Remote Fob...
7.8
9
Odyssey Battery ODP-AGM35 Performance Series AGM Battery, Passenger Car
Odyssey Battery ODP-AGM35 Performance Series AGM Battery, Passenger Car
7.5
10
Mighty Max Battery YTZ8V - 12 Volt 7 AH, 85 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
Mighty Max Battery YTZ8V - 12 Volt 7 AH, 85 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
7.2

The Best battery for rx8

Weize Platinum AGM Battery BCI Group 35 Automotive Battery, 100RC, 650CCA, 36 Months Warranty, Dimensions 9.06" L x 6.89" W x 8.82" H

$169.99
in stock
Amazon.com
Amazon price updated: September 20, 2026 1:56 am

Features

Part Number QTF-35
Model QTF-35
Warranty 3-year warranty
  • ✅Batter dimensions: 9.06" L x 6.89" W x 8.82" H, Terminal: Tapered terminal (Left negative (-), Right positive (+)). ✅Please ensure to verify the dimensions and terminal position before making a purchase to guarantee compatibility with your vehicle to avoid any fitment issues.
  • With a 55AH capacity and 650 cold cranking amps (CCA). Provides reliable performance and long service life, Up to 2 times the cycle life of conventional batteries. If your car's original battery is an AGM type, you must continue using an AGM battery, as your car will not accept a "downgrade" to a flooded battery. Nominal Voltage:12V. Charging Voltage:14.4~15.0V. Acceptable Charging Current:0~17A. Operating Temperature Range: -22°F~158°F.
  • Heat / Cold Resistance: The materials used in the construction of AGM batteries (such as glass fiber mats and specialized separators) have better heat resistance. This allows AGM batteries to maintain their performance and capacity even in the hottest climates, They are also more resistant to extreme temperatures, making them ideal for hot or cold regions.
  • Low Self-Discharge: AGM batteries have lower self-discharge rates compared to flooded batteries. Self-discharge refers to the loss of capacity that batteries experience over time when not in use. In hot climates, when the battery may need to be stored for extended periods or not frequently used, AGM batteries can better maintain charge, providing higher voltage output and easier engine start-up in any climate.
  • Enhanced Safety: AGM batteries have a lower risk of acid leaks and spills compared to flooded batteries. This is because the acid is absorbed and held within the glass fiber mats, reducing the risk of corrosion or damage to surrounding components,this makes AGM batteries more durable and long-lasting, is also two to three times longer than flooded batteries. AGM batteries also have a lower risk of explosion and are safer to handle, making them ideal for high-performance vehicles.
  • Versatility: AGM batteries are suitable for a wide range of vehicles, including luxury cars, high-performance vehicles, and stop-start vehicles. They can handle higher electrical accessory loads and are able to provide reliable power for advanced fuel-saving technologies like stop/start and regenerative braking. AGM batteries are also suitable for off-road vehicles and marine applications due to their vibration resistance and sealed construction.
  • 3-year warranty:We aim for quality followed up with quality customer service. Size, cold cranking amps,terminal location,and battery type are key pieces to getting the right unit. please measure your old battery and compare the dimensions with this battery,if the measurements are the same,positive and negative poles are consistent,CCA is no big difference,and it will fit your vehicle.
  • ✅ AGM automotive starter batteries are designed for Stop/Start applications that have higher electrical accessory loads or performance vehicles that require a higher CCA starting battery with improved cyclic abilityand are not suitable for deep-cycle use in solar projects or marine applications.

Weize Platinum AGM Battery BCI Group 24F Automotive Battery, 120RC, 710CCA, 36 Months Warranty, Dimensions 10.75" L x 6.81" W x 8.98" H

$179.99
in stock
Amazon.com
Amazon price updated: September 20, 2026 1:56 am

Features

Part Number QTF-24F
Model QTF-24F
Warranty 3-year warranty
  • ✅Batter dimensions: 10.75" L x 6.81" W x 8.98" H, Terminal: Tapered terminal (Left negative (-), Right positive (+)). ✅Please ensure to verify the dimensions and terminal position before making a purchase to guarantee compatibility with your vehicle to avoid any fitment issues.
  • With a 70AH capacity and 710 cold cranking amps (CCA). Provides reliable performance and long service life, Up to 2 times the cycle life of conventional batteries. If your car's original battery is an AGM type, you must continue using an AGM battery, as your car will not accept a "downgrade" to a flooded battery. Nominal Voltage:12V. Charging Voltage:14.4~15.0V. Acceptable Charging Current:0~21A. Operating Temperature Range: -22°F~158°F.
  • Heat / Cold Resistance: The materials used in the construction of AGM batteries (such as glass fiber mats and specialized separators) have better heat resistance. This allows AGM batteries to maintain their performance and capacity even in the hottest climates, They are also more resistant to extreme temperatures, making them ideal for hot or cold regions.
  • Low Self-Discharge: AGM batteries have lower self-discharge rates compared to flooded batteries. Self-discharge refers to the loss of capacity that batteries experience over time when not in use. In hot climates, when the battery may need to be stored for extended periods or not frequently used, AGM batteries can better maintain charge, providing higher voltage output and easier engine start-up in any climate.
  • Enhanced Safety: AGM batteries have a lower risk of acid leaks and spills compared to flooded batteries. This is because the acid is absorbed and held within the glass fiber mats, reducing the risk of corrosion or damage to surrounding components,this makes AGM batteries more durable and long-lasting, is also two to three times longer than flooded batteries. AGM batteries also have a lower risk of explosion and are safer to handle, making them ideal for high-performance vehicles.
  • Versatility: AGM batteries are suitable for a wide range of vehicles, including luxury cars, high-performance vehicles, and stop-start vehicles. They can handle higher electrical accessory loads and are able to provide reliable power for advanced fuel-saving technologies like stop/start and regenerative braking. AGM batteries are also suitable for off-road vehicles and marine applications due to their vibration resistance and sealed construction.
  • 3-year warranty:We aim for quality followed up with quality customer service. Size, cold cranking amps,terminal location,and battery type are key pieces to getting the right unit. please measure your old battery and compare the dimensions with this battery,if the measurements are the same,positive and negative poles are consistent,CCA is no big difference,and it will fit your vehicle.
  • ✅ AGM automotive starter batteries are designed for Stop/Start applications that have higher electrical accessory loads or performance vehicles that require a higher CCA starting battery with improved cyclic abilityand are not suitable for deep-cycle use in solar projects or marine applications.

OPTIMA® Batteries High Performance 35 REDTOP® Sealed AGM Car, Truck and SUV Starting Battery, 720 CCA, SAE Terminal, Maintenance Free, Versatile Mounting

$245.40 $279.99
in stock
Amazon.com
Amazon price updated: September 20, 2026 1:56 am

Features

Part Number 8020-164
Model 9020-164
Warranty Please see manufacturer
Color Black/Red
Size 9.38 x 7.69 x 6.75 inch
  • BATTERY SPECS: 12-Volt, 720 Cold Cranking Amps, Size: 9.38" Long x 6.75" Wide x 7.69" Tall, Weight: 31.7 pounds, SAE Post Terminals, C20 Capacity: 44 AH
  • RESERVE CAPACITY of 90 minutes for constant performance. Faster charging capabilities.
  • SPIRALCELL TECHNOLOGY: SPIRALCELL TECHNOLOGY with 99.99% pure lead delivers more power and consistently outperforms conventional flat-plate batteries. Optimal starting power even in bad weather.
  • LONG LASTING: Fifteen times more resistant to vibration than standard flooded battieres for durability and Up to 3 times longer life vs. standard flooded batteries.
  • MAINTENANCE FREE: For maximum convenience. Ideal for basic electrical demands.

Mighty Max Battery MM-G35 Start and Stop Car BCI Group Size 35 12V 55Ah, 100RC, 650 CCA Rechargeable AGM Car Battery

$149.99
in stock
Amazon.com
Amazon price updated: September 20, 2026 1:56 am

Features

Part Number MM-G35
Model MM-G35
Warranty 1 Year Manufacturers Warranty
Color Black
Size Group 35
  • Fast Starting Power: This 12V 55Ah 650 CCA delivers strong, steady starts is ready for any weather in any season.
  • Made to Last: With its 100-minute Reserve Capacity supports longer run times and a longer overall battery lifespan.
  • All Power, No Mess AGM Design: Sealed and spill-proof, the MM-G35 is built with high discharge output and deep discharge recovery to keep power steady when it counts.
  • Strength That Starts on the Inside: The rugged construction resists shock, vibration, and harsh conditions, delivering reliable performance across a wide range of temperatures and tough environments.
  • Tested Tough & Certified Safe: Mighty Max batteries are built in an ISO-certified facility and meet CE standards for quality, safety, and reliability
  • Rechargeable and Versatile: Mounts in multiple positions (excluding upside down) for flexible vehicle installation.
  • Dimensions: Sized at 9.06 x 6.89 x 8.82 inches, ready to fit your ride with ease. Polarity is easy to spot, with the positive terminal on the right and the negative on the left.
  • Included: Each battery includes mounting screws for quick, hassle-free installation.
  • Not Included: Wire harness and mounting accessories are not included.
  • 3 Year Warranty: Mighty Max strength, long-haul protection, and confidence that you’re powered to the max.

1AUTODEPOT BCI Group 24F Car Battery, 12V 70Ah Automotive Battery Premium Maintenance Free AGM Batteries, 710CCA, 120RC, 36 Months Warranty

out of stock
Amazon.com
Amazon price updated: September 20, 2026 1:56 am

Features

Part Number BAB-0075
Model BCI Group 24F
Warranty 3 Years
Size Group Size 24F
  • ✅ COMPATIBLE DIMENSIONS & TERMINALS: Battery dimensions: 10.75" L x 6.81" W x 8.89" H, with tapered terminals (Left negative (-), Right positive (+)). Please verify the dimensions and terminal positions before purchase to ensure compatibility with your vehicle and avoid fitment issues.
  • ✅ HIGH PERFORMANCE & LONG-LASTING: This 70AH 12V battery delivers 710 cold cranking amps (CCA) for reliable starting power, offering up to twice the cycle life of traditional flooded batteries. Nominal Voltage: 12V, Charging Voltage: 14.4-15.0V, and acceptable charging current: 0-17A. Operating temperature range: -22°F to 158°F.
  • ✅ EXCEPTIONAL HEAT/COLD RESISTANCE: AGM batteries are designed with advanced materials like glass fiber mats and specialized separators for superior heat and cold resistance. They maintain optimal performance even in extreme temperatures, making them ideal for use in both hot and cold climates.
  • ✅ LOW SELF-DISCHARGE & ENHANCED SAFETY: With a low self-discharge rate, our AGM battery holds its charge better over time, ensuring quicker starts, even after long periods of inactivity. Plus, AGM batteries are safer than flooded batteries, reducing the risk of acid leaks, spills, and corrosion. They’re also more durable, lasting 2-3 times longer than flooded alternatives and are safer to handle.
  • ✅ SPEICAL DESIGN: group size 24F agm battery was designed for vehicles with start-stop technology and accessories that demand greater power, Whether you drive a car or SUV, this automotive car battery is the perfect choice for reliability.

OPTIMA® Batteries High Performance D35 YELLOWTOP® Dual Purpose Sealed AGM Car, Truck and SUV Battery, 620 CCA, Maintenance Free, Versatile Mounting

$283.40 $299.99
in stock
Amazon.com
Amazon price updated: September 20, 2026 1:56 am

Features

Part Number 9040-218
Model OPT8040-218
Warranty 36-month guarantee
Size 9-5/16 x 6-13/16 x 7-5/8 inch
  • BATTERY SPECS: 12-Volt, 620 Cold Cranking Amps, Size: 9 5/16" x 6 13/16" x 7 5/8" tall, Weight: 36.4 pounds, SAE Post, C20 Capicity: 48 AH
  • RESERVE CAPACITY of 100 minutes for constant performance. Faster charging capabilities.
  • SPIRALCELL TECHNOLOGY: SPIRALCELL TECHNOLOGY with 99.99% pure lead delivers more power and consistently outperforms conventional flat-plate batteries. Optimal starting power even in bad weather.
  • LONG LASTING: Fifteen times more resistant to vibration than standard flooded battieres for durability and Up to 3 times longer life vs. standard flooded batteries.
  • MAINTENANCE FREE: For maximum convenience. Ideal for High electrical demands.

ML8-12 - 12 Volt 8 AH, F1 Terminal, Rechargeable SLA AGM Battery

$20.99
in stock
Amazon.com
Amazon price updated: September 20, 2026 1:56 am

Features

Part Number ML8-12
Model ML8-12
Warranty 1 Year Manufacturer
Color Black
Release Date 2016-06-15T00:00:01Z
Size 1 Count (Pack of 1)
Edition 1 Pack
  • ML8-12 SLA is a 12V 8AH Sealed Lead Acid (SLA) rechargeable maintenance free battery - UL Certified
  • Dimensions: 5.94 inches x 2.56 inches x 4.02 inches. Terminal: F1. Listing is for the Battery only. No wire harness or mounting accessories included.
  • SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover.
  • Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures.

Key Fob Battery Replacement for Mazda CX-5 (13-19), Mazda3 (04-18), Mazda6 (03-18), CX-9 (07-19), MX-5 Miata (01-19), CX-3 (16-20), CX-7 (07-12) Remote Fob...

$7.95
in stock
Amazon.com
Amazon price updated: September 20, 2026 1:56 am

Features

Part Number Mazda Key Fob Battery Replacement
Model Mazda Key Fob Batteries Replacement
Warranty 2 Years
  • PACKAGE INCLUDED : Two (2) CR2025 Remote Fob Batteries and Opening/Pry Tools , Five item bundle (total 5pcs) , PLEASE NOTE: Keyless entry remote fob not included. Original Battery as Provided by Mazda Manufacturer
  • COMPATIBLE WITH (Excluding if you have a flip key) : Mazda 3 (2004-2018) ; Mazda 6 (2003-2018) ; CX5 (2013-2019) ; CX9 (2007-2019) ; MX5 Miata (2001-2019) ; CX-7 (2007-2012) ; CX3 (2016-2020) ; RX8 (2004-2012) ; Millenia (2001-2003) ; Protégé (1999-2003) ; MPV (1993-2006)
  • NOT COMPATIBLE WITH : Any 2021 or newer models. NOT compatible with Mazda flip key. NOT Compatible with Mazda the following models: 626 ; B-Series ; CX-30 ; CX-50 ; CX-70 ; CX-90 ; MX-30 ; Mazda 2; Mazda 5
  • VIDEO INSTALLTION: Step-By-Step Installation Video Included , Detailed instructional video included (via link on product packaging) demonstrating the battery replacement procedure.
  • EASY INSTALLTION: Avoid a Service Appointment for Battery Replacement , Battery replacement is simple and remote reprogramming is not required. Dual purpose opening tool included to help open the remote (without scratching or damaging your remote case) and to remove the battery.

Odyssey Battery ODP-AGM35 Performance Series AGM Battery, Passenger Car

$305.05
in stock
Amazon.com
Amazon price updated: September 20, 2026 1:56 am

Features

Part Number ODP-AGM35
Model ODP-AGM35
Warranty 3 Year Manufacturer
  • Voltage: 12v - PHCA: 1200
  • Cold Cranking Amps (CCA): 675 - HCA: 900
  • Reserve Capacity in Minutes: 110
  • Negative Terminal Location: Left Side
  • Terminal: with SAE posts

Mighty Max Battery YTZ8V - 12 Volt 7 AH, 85 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery

$34.99
in stock
Amazon.com
Amazon price updated: September 20, 2026 1:56 am

Features

Part Number YTZ8V
Model YTZ8V
Warranty 1 Year Manufacturers Warranty
Color Standard
Size Standard
Edition YTZ8V
  • YTZ8V is a 12V 7AH 85 Cold Cranking Amps (CCA) Sealed Lead Acid (SLA) Battery
  • Dimensions: 4.44 inches x 2.75 inches x 5.07 inches. Polarity: Negative on left, Positive on right. Listing is for the Battery and Screws only. No wire harness or mounting accessories included.
  • SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover.
  • Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures.
  • Full One Year Warranty

The Video Review of Best battery for rx8

Conclusion

Our best overall battery for rx8, the Perception and the reviews helps assist to choose you the product better. We hope our reviews buyer guide of these battery for rx8 will help you pick the perfect battery for rx8 for you and your buying decision making.

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