Best Value Car Batteries for Group 35, 47, and 48 Fitments

Best Value Car Batteries

A strong car battery choice delivers the correct physical fit, enough starting power for your vehicle, and a warranty suited to how long you plan to keep it; this roundup helps drivers compare those trade-offs. The ten options here are sealed AGM batteries, but they are not interchangeable: the list includes Group 35, 47, 48, and 94R models, with ratings from 650 to 800 CCA where stated. Weize Platinum AGM Battery Group 35 leads for its 650 CCA rating, 55Ah capacity, and three-year warranty.

Other standouts include Group 47 batteries rated up to 680 CCA and a Group 48 Renogy rated at 720 CCA. Use your vehicle’s required group size and terminal layout as the first filter, then compare specifications and warranty.

Weize Platinum AGM Battery Group 35 is the leading all-around choice in this selection because it combines a Group 35 fit, 650 CCA, 55Ah capacity, and a three-year warranty. Those specifications make it a well-rounded option for buyers whose vehicle calls for Group It is not a universal fit: confirm the required battery group, dimensions, and terminal orientation before ordering.

If your vehicle needs another group size or higher starting output, compare the matching Group 47 or Group 48 options instead.

Our Top Picks

Weize Platinum AGM Group 35Best Overall

Weize Platinum AGM Group 35

Group 35 fit, 650 CCA, 55Ah capacity, and a three-year warranty combine useful starting specifications with a stated coverage period.

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HQST AGM Group 47Cold-Weather Starts

HQST AGM Group 47

This Group 47 battery lists 680 CCA, a 60Ah capacity, and operation down to -40°F, with design claims aimed at start-stop vehicles.

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Daakmax Platinum AGM Group 47Longer Warranty

Daakmax Platinum AGM Group 47

Its Group 47 fit pairs 680 CCA and 60Ah capacity with a three-year warranty; the listing also describes increased vibration resistance.

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Compare the Batteries by Fit and Key Specifications

#ProductDimensionsWeightVoltageBuy
16.89"D x 9.06"W x 8.03"H37.7 lb12 VView on Amazon
2
HQST AGM Group 472. HQST AGM Group 47Cold-Weather Starts
7.6"D x 9.5"W x 6.9"H39 lb12 VView on Amazon
36.89"D x 9.52"W x 7.48"H38 lb12 VView on Amazon
46.89"D x 9.53"W x 7.48"H41 lb12 VView on Amazon
59"D x 7"W x 8.87"H38.1 lb12 VView on Amazon
6
Renogy AGM Group 486. Renogy AGM Group 48For Group 48 higher-capacity starts
—48 lb12 VView on Amazon
7
ACDelco Gold 48AGM7. ACDelco Gold 48AGMFor Group 48 start-stop vehicles
7.5"D x 11.9"W x 7.6"H45.5 lb12 VView on Amazon
8
ACDelco Gold 94RAGM8. ACDelco Gold 94RAGMFor Group 94R AGM vehicles
6.9"D x 12.4"W x 7.5"H51.6 lb12 VView on Amazon
9
Mighty Max MM-G359. Mighty Max MM-G35For Group 35 AGM replacement
9.06"D x 6.89"W x 8.82"H—12 VView on Amazon
10
OPTIMA RedTop 34/7810. OPTIMA RedTop 34/78For high-output starting and dual posts
6.88"D x 10"W x 7.81"H38.8 lb12 VView on Amazon

Detailed Reviews: Best Value Car Batteries

Weize Platinum AGM Group 35

#1 · Best Overall

1. Weize Platinum AGM Group 35

  • Dimensions: 6.89"D x 9.06"W x 8.03"H
  • Weight: 37.7 lb
  • Voltage: 12 V

Best for: For Group 35 passenger cars.

Why it ranks #1: Group 35 fit, 650 CCA, 55Ah capacity, and a three-year warranty combine useful starting specifications with a stated coverage period.

The WEIZE Group 35 pairs 650 cold cranking amps with a 55Ah capacity, giving passenger-car owners clearly stated starting and capacity figures in a 12-volt AGM battery. Its tapered terminals have a specified left-negative, right-positive arrangement, helping buyers assess both output and terminal layout against their existing installation.

The 650 CCA rating gives a concrete starting-power figure, while the 55Ah capacity identifies the battery’s stated energy capacity for a Group 35 replacement. WEIZE says it offers up to twice the cycle life of conventional batteries, a useful consideration for repeated charge-and-discharge use. Its dimensions are listed as 9.06 by 6.89 by 8.03 inches in the specifications; the feature text gives a different height, so check the battery’s stated fit details carefully before installation.

Pros
  • 12-volt Group 35 format for passenger cars.
  • 55Ah capacity is stated.
  • 650 CCA rating provides a clear starting-power specification.
  • Tapered terminals are identified as left negative and right positive.
Cons
  • The listed height differs: specifications say 8.03 inches, while feature text says 8.82 inches.

Skip it if you need an unambiguous height specification; the Mighty Max MM-G35 lists dimensions of 9.06 by 6.89 by 8.82 inches.

This WEIZE suits passenger-car owners seeking a Group 35 AGM with stated 55Ah capacity and 650 CCA. Its terminal orientation is spelled out, but the conflicting height figures mean careful fit checking matters before choosing it.

Full product details
BrandWEIZE
Compatible with Vehicle TypePassenger Car
Included Componentsno
Dimensions6.89"D x 9.06"W x 8.03"H
Item Weight37.7 pounds
ManufacturerWEIZE
Part NumberQTF-35
Manufacturer Warranty Description3-year warranty
Model NumberQTF-35
SizeGroup Size 35
Voltage12 volts

Listed on Amazon as: 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

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HQST AGM Group 47

#2 · Cold-Weather Starts

2. HQST AGM Group 47

  • Dimensions: 7.6"D x 9.5"W x 6.9"H
  • Weight: 39 lb
  • Voltage: 12 V

Best for: For Group 47 start-stop SUVs.

Why it ranks #2: This Group 47 battery lists 680 CCA, a 60Ah capacity, and operation down to -40°F, with design claims aimed at start-stop vehicles.

HQST specifies operation from -40°F to 140°F for its Group 47 H5 AGM, giving drivers a broad stated temperature range for demanding conditions. Its 680 CCA and start-stop focus add concrete starting and vehicle-use details, while higher charge acceptance and faster energy recovery address repeated stop-and-start operation.

The 680 CCA rating supports the battery’s stated cold-start focus, including operation as low as 0°F; the broader listed range is -40°F to 140°F. HQST says the AGM is engineered for start-stop systems and offers higher charge acceptance and faster energy recovery than conventional flooded batteries. Those features address frequent engine restarts and charging cycles. Its 60Ah capacity and 7.6-by-9.5-by-6.9-inch dimensions help buyers assess output and installation footprint for a listed daily SUV or sedan application.

Pros
  • Group 47 H5 format for start-stop vehicles.
  • 680 CCA rating and stated starts down to 0°F.
  • Operating temperature range listed as -40°F to 140°F.
  • 60Ah capacity and faster energy recovery claim.
Cons
  • Its 680 CCA rating is below the 720 CCA listed for the Renogy Group 48.

Skip it if you need a higher listed CCA figure; the Renogy Group 48 specifies 720 CCA, but uses a different group size.

This HQST is suited to a Group 47 start-stop sedan or SUV used across a wide temperature range. Its 680 CCA and dimensions are key fit checks, particularly if the vehicle’s requirements call for a different battery group.

Full product details
BrandHQST
Battery Capacity60 amp_hours
Compatible with Vehicle TypeDaily SUVs, Sedan
Included ComponentsAGM Battery*1
Dimensions7.6"D x 9.5"W x 6.9"H
Item Weight39 pounds
ManufacturerHQST
Part NumberHBT1260AGM-US
Manufacturer Warranty Description3
Model NumberHBT1260AGM-US
Size47 H5
Voltage12 volts

Listed on Amazon as: HQST 12V 60Ah AGM Car Battery, Group 47 H5, 680CCA, 100RC, Start-Stop

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Daakmax Platinum AGM Group 47

#3 · Longer Warranty

3. Daakmax Platinum AGM Group 47

  • Dimensions: 6.89"D x 9.52"W x 7.48"H
  • Weight: 38 lb
  • Voltage: 12 V

Best for: For Group 47 car and SUV fitments.

Why it ranks #3: Its Group 47 fit pairs 680 CCA and 60Ah capacity with a three-year warranty; the listing also describes increased vibration resistance.

Daakmax specifies 680 cold cranking amps in a Group 47 H5 battery, giving car and SUV owners a clear starting-power figure alongside a 60Ah capacity. Its stated dimensions and tapered terminal orientation help narrow fit checks, while the product’s vibration-resistance claim addresses a practical durability consideration for vehicle use.

The 680 CCA rating and 60Ah capacity define the battery’s stated starting and capacity figures; its 12-volt output suits automotive applications. Daakmax also describes this Group 47 battery as significantly more vibration-resistant than standard batteries, a feature intended to support dependable use over time. At 9.52 by 6.89 by 7.48 inches, with negative terminal on the left and positive on the right, it gives buyers specific measurements and orientation to compare with the existing battery.

Pros
  • Group 47 H5 size is specified.
  • 60Ah capacity and 680 CCA are stated.
  • Tapered terminals are specified as left negative and right positive.
  • Claimed vibration resistance is higher than standard batteries.
Cons
  • Its Group 47 format limits it to vehicles that accept that battery size and terminal layout.

Skip it if you need 720 CCA; the Renogy Group 48 battery lists that rating, though its group size differs.

Consider the Daakmax for a car or SUV calling for Group 47 H5, with 680 CCA and stated vibration resistance. The 9.52-inch length and left-negative, right-positive terminal arrangement remain important fit boundaries.

Full product details
BrandDaakmax
Compatible with Vehicle TypePassenger Car, SUV
Included ComponentsBattery Only
Dimensions6.89"D x 9.52"W x 7.48"H
Item Weight38 pounds
ManufacturerDaakmax
Part NumberBAB-0053DK
Manufacturer Warranty Description3 Years Warranty
Model NumberBAB-0053DK
SizeGroup 47
Voltage12 volts

Listed on Amazon as: Platinum AGM Car Battery Group Size 47 H5, 12V 60Ah, 680 CCA, 100 RC, Rechargeable Start-Stop Automotive Battery with 36-Month Warranty

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MARXON AGM Group 47

#4 · Fast Charging

4. MARXON AGM Group 47

  • Dimensions: 6.89"D x 9.53"W x 7.48"H
  • Weight: 41 lb
  • Voltage: 12 V

Best for: For Group 47 start-stop cars.

Why it ranks #4: The Group 47 AGM lists 660 CCA and 60Ah capacity, and its product description claims faster charging than an SLA battery.

MARXON’s Group 47 AGM specifies start-stop use and a claimed charging time 40% faster than an SLA battery, giving frequent-stop drivers a feature tied to charging workflow. The maintenance-free 12-volt design also lists 60Ah capacity and 660 CCA, making its core ratings easy to compare.

The stated 60Ah capacity and 660 CCA describe the battery’s capacity and starting output, while the Group 47 H5 dimensions of 9.53 by 6.89 by 7.48 inches help with fit assessment. MARXON says its start-stop battery charges 40% faster than an SLA battery, a claim relevant to vehicles that repeatedly restart and recharge. Its maintenance-free AGM construction avoids routine maintenance tasks described for other battery types; terminal type is listed as A1.

Pros
  • Group 47 H5 size for start-stop vehicles.
  • 60Ah capacity and 660 CCA are stated.
  • Maintenance-free AGM construction.
  • Claims 40% faster charging than an SLA battery.
Cons
  • Its 660 CCA rating is lower than the 680 CCA listed for the HQST Group 47.

Skip it if you need a higher CCA figure in Group 47; the HQST HBT1260AGM-US lists 680 CCA, though its terminal details differ.

Consider this MARXON for a Group 47 start-stop car where maintenance-free construction and its faster-charging claim are relevant. Its 660 CCA rating and A1 terminal specification are important comparison points.

Full product details
BrandMARXON
Compatible with Vehicle TypePassenger Car
Dimensions6.89"D x 9.53"W x 7.48"H
Item Weight41 pounds
ManufacturerLeoch battery
Part NumberM-47
SizeH5 / Group 47
Voltage12 volts

Listed on Amazon as: MARXON Group 47 H5 L2 Car Battery 12v 60AH 660CCA AGM Maintenance Free

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Goodyear Platinum AGM Group 35

#5 · Flexible Mounting

5. Goodyear Platinum AGM Group 35

  • Dimensions: 9"D x 7"W x 8.87"H
  • Weight: 38.1 lb
  • Voltage: 12 V

Best for: For Group 35 flexible mounting.

Why it ranks #5: This Group 35 battery lists 650 CCA, 55Ah, 100-minute reserve capacity, and a three-year manufacturer warranty.

Goodyear’s 35-AGM allows multiple mounting positions except upside down, giving installers flexibility when a vehicle’s battery location constrains orientation. Its 650 CCA and 100-minute reserve capacity provide clear starting and reserve figures, while the 55Ah, 12-volt specification identifies its core electrical ratings.

The 650 CCA rating is listed for starting in both freezing and hot weather, and the 100-minute reserve capacity provides a stated duration for extended power. Goodyear says the AGM can be mounted in multiple positions, except upside down, which can help when the installation location limits orientation. Its 55Ah capacity and Group 35 designation help buyers compare output and size, while the listed dimensions are 9 by 7 by 8.87 inches.

Pros
  • 650 CCA starting rating.
  • 100-minute reserve capacity.
  • Multiple mounting positions permitted, except upside down.
  • 55Ah capacity and Group 35 designation are stated.
Cons
  • Upside-down mounting is expressly excluded.

Skip it if you need upside-down mounting; the Goodyear 35-AGM excludes that orientation, so this installation requirement rules it out.

This Goodyear suits a Group 35 application where 650 CCA, reserve capacity, and flexible orientation are useful. Its mounting flexibility has a clear boundary: it cannot be installed upside down, and dimensions still need to suit the space.

Full product details
BrandGoodyear
Battery Capacity55 amp_hours
Compatible with Vehicle TypeATV
Included ComponentsBattery
Dimensions9"D x 7"W x 8.87"H
Item Weight38.1 pounds
ManufacturerGoodyear
Part Number35-AGM
Manufacturer Warranty Description3 Year Manufacturers Warranty
Model Number35-AGM
SizeStandard
Voltage12 volts

Listed on Amazon as: Goodyear 35-AGM BCI Group Size 35 12V 55 AH, 100RC, 650 CCA Platinum series Rechargeable AGM Maintenance Free Automotive Battery

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Renogy AGM Group 48

#6

6. Renogy AGM Group 48

  • Weight: 48 lb
  • Voltage: 12 V

Best for: For Group 48 higher-capacity starts.

Why it ranks #6: The Group 48 model lists 720 CCA and 70Ah capacity, the highest stated starting output and capacity in this selection.

Renogy’s Group 48 AGM lists 70Ah and 720 cold cranking amps, providing higher stated capacity and starting output than many batteries in this lineup. Its specified operating range of -22°F to 158°F supports use across hot and cold conditions, while the sealed lead-acid design minimizes the risk of acid leaks and corrosion.

The 70Ah capacity and 720 CCA rating give buyers clear figures for capacity and starting output in a 12-volt Group 48 battery. Renogy lists operation from -22°F to 158°F, tying its temperature claim to both winter and summer conditions. Its sealed construction is described as minimizing acid leaks and corrosion, which can help keep routine use cleaner. The included vent tubes, valve caps, handles, and terminal covers are relevant to handling and installation workflow.

Pros
  • 70Ah capacity and 720 CCA are stated.
  • Group 48 size is specified.
  • Operating range listed as -22°F to 158°F.
  • Sealed design minimizes risk of acid leaks and corrosion.
Cons
  • At 48 pounds, it is heavier than the 38-pound Daakmax Group 47.

Skip it if you need a lighter battery; the Daakmax Group 47 weighs 38 pounds, though its capacity and group size differ.

The Renogy suits drivers needing a Group 48 battery with 70Ah, 720 CCA, and a broad stated temperature range. Its 48-pound weight and included vent hardware make handling and installation details worth considering.

Full product details
BrandRenogy
Included ComponentsBattery Valve Cap *6, Battery Vent Tube*4, Handel * 1 Pair, Terminal Covers * 1 Pair, Warranty Card *1
Item Weight48 pounds
ManufacturerRenogy
ModelGroup 48 Start and Stop Automotive Battery with 720 CCA
Model Number12V 70Ah AGM Car Battery H6
Recommended UsesRV
Voltage12 volts
Warranty DescriptionMaterial and Workmanship Warranty: 2 Year

Listed on Amazon as: Renogy 12V 70Ah AGM Car Battery H6, Group 48 Start and Stop Automotive Battery with 720 CCA, 120RC, Reliable Power for Cars, SUVs, Trucks, and Marine Starting

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ACDelco Gold 48AGM

#7

7. ACDelco Gold 48AGM

  • Dimensions: 7.5"D x 11.9"W x 7.6"H
  • Weight: 45.5 lb
  • Voltage: 12 V

Best for: For Group 48 start-stop vehicles.

Why it ranks #7: This Group 48 AGM includes a 36-month free-replacement limited warranty and features designed for cycling and charge acceptance.

ACDelco’s AGM design holds electrolyte in a glass mat, making this Group 48 battery leak- and spill-proof while supporting the high cycling associated with start-stop use. Its charge receptivity and construction focus on repeated starting demands, making it a practical option for drivers whose vehicles call for this battery size.

High-density negative paste and a silver-calcium alloy are intended to improve performance and cycle life, which suits vehicles that place repeated demands on the battery. A calcium-lead positive grid maximizes conductivity and allows low resistance. The robust envelope separator has a puncture-resistant back; its design supports acid circulation and helps prevent shorts. The battery measures 11.9 by 7.5 by 7.6 inches and weighs 45.5 pounds, so installation calls for a Group 48-sized space and a way to handle its weight.

Pros
  • AGM design holds electrolyte in a leak- and spill-proof glass mat.
  • High-density negative paste supports performance and battery life.
  • Silver-calcium alloy is intended to increase cycle life.
  • Envelope separator promotes acid circulation and helps prevent shorts.
Cons
  • At 45.5 pounds, it is a substantial battery to lift during installation.

Skip it if you need a lighter replacement; the WEIZE Group 35 battery weighs 37.7 pounds, though it uses a different group size.

Choose this ACDelco for a Group 48 vehicle with repeated starting demands, especially one using start-stop technology. Its spill-proof AGM construction is useful, but its 45.5-pound weight and 11.9-inch length make handling and available space relevant.

Full product details
BrandACDelco
Compatible with Vehicle TypeTruck
Dimensions7.5"D x 11.9"W x 7.6"H
Item Weight45.5 pounds
ManufacturerACDelco
Part Number88864541
Manufacturer Warranty Description36 Month Free Replacement / Limited Warranty
Model Number48AGM
SizeStandard
Voltage12 volts
Additional InformationImportant Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov Proposition 65 Warning for California Consumers WARNING: Cancer – www.P65Warnings.ca.gov

Listed on Amazon as: ACDelco Gold 48AGM (88864541) 36 Month Warranty AGM BCI Group 48 Battery

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ACDelco Gold 94RAGM

#8

8. ACDelco Gold 94RAGM

  • Dimensions: 6.9"D x 12.4"W x 7.5"H
  • Weight: 51.6 lb
  • Voltage: 12 V

Best for: For Group 94R AGM vehicles.

Why it ranks #8: The Group 94R AGM has a 36-month free-replacement limited warranty and high-density plate features, though the listing gives no CCA rating.

ACDelco’s Group 94R AGM combines high-density plate oxide with a calcium-lead positive grid, targeting high cycling service and low electrical resistance. The 12-volt battery also uses a puncture-resistant envelope separator, with a design that promotes acid circulation and helps prevent shorts for vehicles that require this specific size.

The high-density plate oxide is intended to provide maximum power per pound, while high-density negative paste supports performance and battery life. A silver-calcium stamped alloy is specified to increase cycle life, making the construction relevant for repeated battery demands. The calcium-lead positive grid maximizes conductivity and allows low resistance. At 12.4 by 6.9 by 7.5 inches and 51.6 pounds, this Group 94R AGM calls for adequate installation space and careful handling.

Pros
  • High-density plate oxide targets power per pound.
  • Silver-calcium alloy is intended to increase cycle life.
  • Calcium-lead grid maximizes conductivity and allows low resistance.
  • Envelope separator promotes acid circulation and helps prevent shorts.
Cons
  • At 51.6 pounds, it is the heaviest listed battery in this roundup.

Skip it if you need a lighter battery; the OPTIMA 34/78 RedTop weighs 38.8 pounds, but has a different size and terminal setup.

Choose this ACDelco when a vehicle calls for Group 94R and its high-cycling AGM construction suits the application. Its 51.6-pound weight and 12.4-inch length make lifting and available space important considerations.

Full product details
BrandACDelco
Compatible with Vehicle Typeattribute not appiicable to product
Included ComponentsBattery
Dimensions6.9"D x 12.4"W x 7.5"H
Item Weight51.6 pounds
ManufacturerACDelco
Part Number88864542
Manufacturer Warranty Description36 Month Free Replacement / Limited Warranty
Model Number94RAGM
SizePack of 1
Voltage12 volts
Additional InformationImportant Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov Proposition 65 Warning for California Consumers WARNING: Cancer – www.P65Warnings.ca.gov

Listed on Amazon as: ACDelco Gold 94RAGM (88864542) 36 Month Warranty AGM BCI Group 94R Battery

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Mighty Max MM-G35

#9

9. Mighty Max MM-G35

  • Dimensions: 9.06"D x 6.89"W x 8.82"H
  • Voltage: 12 V

Best for: For Group 35 AGM replacement.

Why it ranks #9: Its Group 35 fit, 650 CCA, 55Ah capacity, and 100-minute reserve capacity are useful, but the stated warranty is only one year.

Mighty Max lists 650 cold cranking amps and a 100-minute reserve capacity for its Group 35 AGM, giving buyers both a starting-power figure and a stated reserve duration. The sealed, spill-proof design and deep-discharge recovery speak to practical handling and power recovery considerations in a passenger-car battery.

Its 12-volt, 55Ah specification and 650 CCA rating describe the battery’s capacity and starting output, while the 100-minute reserve capacity indicates a stated run-time measure. Mighty Max says the AGM construction is sealed and spill-proof, which can simplify handling compared with a design that permits spills. Deep-discharge recovery is another stated feature, intended to help restore steady power. The 9.06-by-6.89-by-8.82-inch Group 35 dimensions give buyers a concrete installation footprint to compare.

Pros
  • Group 35 size for passenger-car use.
  • 650 CCA starting-power rating.
  • 100-minute reserve capacity is stated.
  • Sealed, spill-proof AGM design with deep-discharge recovery.
Cons
  • The manufacturer warranty is one year, shorter than the three-year terms listed for some alternatives.

Skip it if you want a listed three-year warranty; the Goodyear 35-AGM specifies one, with the same Group 35 size.

This Mighty Max fits a Group 35 replacement search where 650 CCA, 100-minute reserve capacity, and spill-proof AGM construction matter. Its one-year manufacturer warranty is a relevant boundary for buyers weighing stated coverage.

Full product details
BrandMighty Max Battery
Battery Capacity55 amp_hours
Compatible with Vehicle TypePassenger Car
Included ComponentsBattery
Dimensions9.06"D x 6.89"W x 8.82"H
ManufacturerMighty Max Battery
Part NumberMM-G35
Manufacturer Warranty Description1 Year Manufacturers Warranty
Model NumberMM-G35
SizeGroup 35
Voltage12 volts

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

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OPTIMA RedTop 34/78

#10

10. OPTIMA RedTop 34/78

  • Dimensions: 6.88"D x 10"W x 7.81"H
  • Weight: 38.8 lb
  • Voltage: 12 V

Best for: For high-output starting and dual posts.

Why it ranks #10: It offers 800 CCA, a 100-minute reserve, and dual SAE and GM posts, but its listed specifications provide no defined BCI group size or warranty term.

The OPTIMA RedTop pairs 800 cold cranking amps with dual SAE and GM terminals, offering a high starting-power rating and two specified post types in one 12-volt battery. Its SpiralCell design uses 99.99% pure lead, while a 100-minute reserve capacity adds a stated measure of sustained power.

The 800 CCA rating is aimed at starting power, and the product description specifically highlights starting in harsh weather. SpiralCell technology and 99.99% pure lead distinguish its construction from conventional flat-plate designs, while the stated 100-minute reserve capacity provides a concrete reserve figure. Dual SAE and GM posts can suit installations using either terminal type. At 10.06 by 6.94 by 7.88 inches and 38.8 pounds, it still requires a matching space and mounting arrangement.

Pros
  • 800 CCA starting rating.
  • Dual SAE and GM terminals.
  • 100-minute reserve capacity.
  • SpiralCell design uses 99.99% pure lead.
Cons
  • Its 50Ah capacity is lower than the 55Ah and 60Ah figures listed for several alternatives.

Skip it if you need a stated 60Ah capacity; the Daakmax Group 47 lists that figure, but its size and terminals differ.

The RedTop suits drivers prioritizing 800 CCA, harsh-weather starting, and the choice of SAE or GM posts. Check that its dimensions, terminal arrangement, and 50Ah capacity meet the vehicle’s requirements.

Full product details
BrandOPTIMA
Compatible with Vehicle TypePassenger Car, Truck
Included Componentsbattery
Dimensions6.88"D x 10"W x 7.81"H
Item Weight38.8 pounds
ManufacturerOPTIMA
Part Number8004-003
Manufacturer Warranty Descriptionparts
Model Number8004-003
Size10 x 6-7/8 x 7-13/16 inch
Voltage12 volts

Listed on Amazon as: OPTIMA Batteries High Performance 34/78 RedTop Sealed AGM Car, Truck, and SUV Starting Battery, 800 CCA, Dual SAE and GM Terminals, Maintenance Free, Versitile Mounting

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Avoid the group-size and terminal-orientation trap

The most common fitment trap is choosing a battery by CCA alone instead of matching the vehicle’s required group size, dimensions, and terminal positions. These products span several groups: Group 35, Group 47/H5, Group 48, and Group 94R, while the OPTIMA listing specifies dual SAE and GM posts without a BCI group number. Even batteries with similar ratings can have different footprints: the listed Group 35 models are about 9 inches long, while Group 47 models are about 9.5 inches long.

Terminal orientation matters too; the Weize and Daakmax listings specify left-negative, right-positive tapered terminals. Before buying, check the existing battery label and your vehicle manual, then compare the listed dimensions and post layout.

A strong CCA figure cannot make an incorrectly sized battery fit or its terminals connect safely.

AGM replacement is not a one-size-fits-all upgrade

An AGM battery is a suitable replacement only when its group, electrical requirements, and vehicle charging system are compatible. The listings describe several AGM batteries for start-stop use, including ACDelco’s group 48 and 94R models and Group 47 options from HQST, Daakmax, and MARXON. That does not establish that every vehicle can switch to AGM without checking manufacturer guidance.

A wrong battery type or an unregistered replacement on vehicles that require battery monitoring procedures can create charging or system issues; confirm the required type and replacement process in the owner’s manual or with a qualified installer. The trade-off within this roundup is that higher ratings do not guarantee broader compatibility: Renogy lists 720 CCA in Group 48, while the Group 35 options list 650 CCA.

Choose the specification that matches your car, not simply the largest number.

How to Choose a Car Battery

Group size, dimensions, and terminals

Start by matching the battery group, dimensions, and terminal layout specified for your vehicle. The products here cover Group 35 models around 9 inches long, Group 47/H5 models around 9.5 inches long, and Group 48 and 94R options with different listed footprints. Weize and Daakmax specify tapered terminals with left-negative and right-positive orientation; MARXON identifies terminal type A1.

Drivers replacing an existing battery should compare its label and measurements, while buyers without that information should check the owner’s manual or ask a qualified installer. A higher CCA rating is no advantage if the battery will not fit the tray or the cables cannot reach the correct posts.

Cold-cranking amps and capacity

Look for CCA and amp-hour ratings that meet or exceed the requirements for your vehicle and climate. Stated CCA values range from 650 on the Group 35 Weize, Mighty Max, and Goodyear models to 720 on Renogy’s Group 48; OPTIMA lists 800 CCA. Capacity ranges from 55Ah on the Group 35 Weize and Goodyear to 70Ah on Renogy, while several Group 47 options list 60Ah.

Drivers in colder conditions may favor adequate CCA, while frequent electrical demand may make capacity worth comparing. These ratings do not override fitment or the vehicle maker’s specifications, so use the correct group and minimum requirements as your baseline.

Warranty and reserve capacity

Compare the stated warranty term and reserve capacity, but do not treat either as a guarantee of real-world lifespan. ACDelco’s two listings specify a 36-month free-replacement limited warranty; Weize, Daakmax, and Goodyear list three years, while Mighty Max lists one year. Reserve capacity is stated as 100 minutes on several models, including Weize, HQST, Daakmax, Mighty Max, and Goodyear; Renogy lists 120 minutes.

Buyers who prioritize a longer stated coverage period can focus on the three-year and 36-month entries, while those who want more listed reserve can compare Renogy’s figure. Read the applicable warranty terms before purchase, since the listing summaries alone do not establish exclusions or claim procedures.

Which car battery should you choose?

Choose Weize Platinum AGM Group 35 if your vehicle requires Group 35 and you want a 650 CCA battery with 55Ah capacity and a three-year warranty. For a Group 47/H5 fit, HQST AGM Group 47 offers 680 CCA and a stated wide operating-temperature range; Daakmax Platinum AGM Group 47 also lists 680 CCA and a three-year warranty. If your vehicle calls for Group 48, compare Renogy AGM Group 48’s 720 CCA and 70Ah with ACDelco Gold 48AGM’s 36-month limited warranty.

Goodyear Platinum AGM Group 35 is another Group 35 option with 100-minute reserve capacity and a three-year warranty. Confirm the group, dimensions, terminal positions, and required battery type against your vehicle before deciding; do not choose by rating alone.

Frequently Asked Questions

How do I confirm which battery group size and terminal layout my car needs?

Check your vehicle’s owner’s manual or the label on the installed battery for the required group size and terminal arrangement. Before ordering, compare the replacement’s dimensions and terminal positions with the space and cable layout in your vehicle. The battery must match the vehicle’s requirements; group size alone is not enough.

Can I replace a flooded battery with an AGM battery in my vehicle?

Use an AGM replacement only if your vehicle’s requirements and charging system support that battery type. Check the owner’s manual or consult a qualified technician before switching, and confirm the replacement’s group size, dimensions, terminal positions, and required specifications. The battery titles alone do not establish compatibility with your vehicle.

What should I do with my old car battery after replacing it?

Take the old battery to a battery retailer or local recycling or hazardous-waste collection program that accepts car batteries. Do not put it in household trash. Keep it upright during transport, and avoid handling it if the case is damaged or leaking; ask the collection site how to manage it safely.

Should I choose a replacement by CCA rating alone?

No. First confirm the required battery group, dimensions, terminal orientation, and battery type. Then compare the specifications that matter for your vehicle, such as CCA and capacity.

A higher starting-output rating does not make a battery a suitable replacement if it does not fit or meet the vehicle’s requirements.

What should I compare between batteries that fit the same group?

Compare the listed CCA, capacity, reserve capacity, battery type, and warranty, while verifying the dimensions and terminal positions. For example, Group 47 options here list 680 CCA for HQST and Daakmax, while the Group 48 options include different listed capacities and warranty details. Match the specifications to your vehicle’s requirements.

Final Words

Start by confirming your vehicle’s required group, dimensions, terminal orientation, and battery type. For a Group 35 fit, Weize is the leading all-around choice here, with 650 CCA, 55Ah, and a three-year warranty. If you need Group 47 or 48, compare the matching options’ listed output, capacity, and warranty instead.

Do not select by rating alone; verify compatibility before ordering.

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