Best Group 27 Battery 1000 Cca for Starting and Marine Use

#1 · Best Overall

1. TPE Group 27 Lithium

• Dimensions: 6.77"D x 12.01"W x 7.99"H
• Voltage: 12 V

Best for: High-CCA passenger-car lithium.

Why it ranks #1: Its title specifies Group 27 and 1300 CCA, the highest listed CCA here; its 80Ah capacity and passenger-car fit make it best for automotive starting.

A listed 1300 CCA rating is the TPE Group 27 battery’s clearest distinction, giving passenger-car buyers a starting-focused option that exceeds a 1000-CCA threshold on paper. Its 12V, 80Ah lithium specification and start-stop positioning make it a different fit from marine deep-cycle batteries intended for extended onboard loads.

The 1300 CCA figure directly addresses buyers prioritizing engine cranking, while the 80Ah capacity gives a stated measure of stored energy. TPE lists this battery for passenger cars and identifies it as a start-stop model, making vehicle application central to the choice. Dimensions are 12.01 by 6.77 by 7.99 inches for planning installation space. The supplied maintenance guidance says not to charge it at home or unattended, so charging requires attention to that safety instruction.

Skip it if you need a marine battery with stated deep-cycle capacity; the TPE listing identifies passenger-car use instead.

Consider the TPE if your passenger car’s requirements call for a Group 27 start-stop battery and the stated 1300 CCA is relevant. Its listing is automotive-focused, and charging must follow the supplied safety precautions.

Listed on Amazon as: GROUP 27 Car Start-Stop Lithium Battery 12V 80AH Car Battery with 1300CCA – High-Performance Automotive Battery with 60 Months Warranty

#2 · Marine Dual-Purpose

2. MARXON Group 27M

Best for: Dual-purpose marine RV battery.

Why it ranks #2: This marine/RV Group 27M lists 800 CCA and 1040 MCA, plus 92Ah capacity and a two-year warranty; note MCA is not CCA.

The MARXON Group 27M combines an 800-CCA starting rating with 92Ah capacity, enabling one battery to crank an engine and support continuing electrical loads. Its listed 1040 MCA and 175-minute reserve capacity add useful reference points for marine or RV buyers balancing starting needs with time between charges.

The dual-purpose description connects rapid starting bursts with steady power delivery, so this model can serve both roles in a marine or RV setup. Its 92Ah capacity and 175-minute reserve capacity offer context for sustained use, while the 800 CCA figure identifies its cold-start rating. The 12.05-by-6.61-by-8.19-inch dimensions assist with space planning. Different-size terminals and included screws and nuts can simplify connection options, but 800 CCA does not meet a strict 1000-CCA target.

Skip it if you need a listed rating of 1000 CCA or higher; the MARXON is rated at 800 CCA.

This MARXON suits marine and RV owners seeking a Group 27M battery that handles starting and ongoing loads, with terminal options and hardware included. Its 800 CCA rating remains the important limit for buyers targeting 1000 CCA.

Listed on Amazon as: Group 27M Marine Battery Dual Purpose 12V 92Ah 1040MCA 800CCA 175RC

#3 · Highest Reserve

3. Odyssey ODP-AGM27

• Voltage: 12 V

Best for: High-reserve AGM vehicle power.

Why it ranks #3: The AGM model lists 850 CCA and 182 minutes of reserve capacity, with a three-year manufacturer warranty and SAE posts.

Odyssey lists 850 CCA alongside a 182-minute reserve capacity, giving the ODP-AGM27 both a clear starting figure and substantial stated reserve for vehicle accessories. Its 79Ah AGM format and SAE posts suit buyers seeking a conventional 12V battery, but its CCA rating remains below 1000.

The 850 CCA rating supplies a concrete reference for engine-starting needs, while the 182-minute reserve capacity supports extended accessory use when the engine is not providing power. Odyssey describes the Performance Series as offering deep-cycle capability and handling increased onboard accessory use, linking those figures to mixed vehicle demands. The battery has 79Ah capacity, a right-side negative terminal, and SAE posts, details that inform space and cable planning. Its stated 850 CCA is the limit for strict 1000-CCA shoppers.

Skip it if you need at least 1000 CCA; Odyssey lists this battery at 850 CCA.

The Odyssey suits vehicle owners who want an AGM battery with a stated 182-minute reserve and deep-cycle capability for accessories. Check that its 850 CCA rating and right-side negative terminal fit your requirements.

Listed on Amazon as: Odyssey Battery ODP-AGM27 Performance Series AGM Battery

#4 · Dual-Purpose AGM

4. Mighty Max MM-G27M

• Dimensions: 12.06"D x 6.62"W x 9.25"H
• Weight: 70.5 lb
• Voltage: 12 V

Best for: Marine dual-purpose AGM.

Why it ranks #4: A marine dual-purpose AGM with 800 CCA, 100Ah capacity, 170 minutes reserve, and maintenance-free construction; it suits mixed starting and accessory loads.

A 100Ah deep-cycle capacity paired with 800 CCA gives the Mighty Max MM-G27M a useful two-job role: it can crank a boat engine while supplying sustained power to onboard electronics and gear. Its Group 27M format and maintenance-free, spill-proof AGM construction suit marine buyers seeking one battery for starting and routine loads.

The 100Ah capacity supports extended electronics use between charging opportunities, while 800 CCA and 850 MCA provide the listed engine-starting figures. A 170-minute reserve capacity adds another measure of available run time for connected equipment. The 12.06-by-6.62-by-9.25-inch dimensions help with installation planning, and the 70.5-pound weight matters when handling it. Spill-proof, maintenance-free construction avoids routine water checks; however, the listed cranking rating is below a 1000-CCA target.

Skip it if you require at least 1000 CCA; this battery is rated at 800 CCA, despite its 100Ah capacity.

Choose this Mighty Max for a boat owner who wants one AGM battery for engine starting and electronics, with maintenance-free handling. Its 800 CCA rating is the key boundary if your application specifically requires 1000 CCA.

Listed on Amazon as: Mighty Max Battery MM-G27M, 12V 100Ah, Group Size 27M Deep-Cycle Marine AGM, Dual-Purpose Starting & Deep Discharge, 800 CCA, 850 MCA, 170 RC, Spill-Proof Maintenance-Free Battery

#5

5. Banshee Group 27M

• Voltage: 12 V

Best for: Marine replacement dual-purpose pair.

Why it ranks #5: This marine dual-purpose Group 27M lists 800 CCA and is described as a direct replacement for Optima D27M and Trojan 27TMX batteries.

Banshee’s two-battery package combines Group 27 marine dual-purpose batteries with 800 CCA per battery, providing engine cranking alongside deep-cycle use. The listing identifies direct replacement fit for Optima D27M and Trojan 27TMX batteries, making it especially relevant to owners replacing those models without modifications.

Each battery is described as handling engine cranking and deep-cycle loads, so the pair can support marine starting and onboard equipment. The 800 CCA rating gives a specific starting reference, while the listed 105Ah capacity supports sustained use. Banshee also cites rigorous deep charges and long, slow recharges, a relevant operating detail for marine charging routines. Direct replacement compatibility with Optima D27M and Trojan 27TMX can simplify replacement planning; the 800 CCA figure is below a 1000-CCA target.

Skip it if you require 1000 CCA or more per battery; Banshee lists 800 CCA for this marine model.

This Banshee pair suits boat owners replacing Optima D27M or Trojan 27TMX batteries who want combined cranking and deep-cycle use. The listed 800 CCA and marine application define its limits for higher-starting-demand setups.

Listed on Amazon as: 2pc Banshee replacement for Trojan 27TMX 12V 105Ah Marine RV Dual Purpose Battery Group 27

#6

6. LIPOWER Group 27/27F

• Dimensions: 12.05"D x 8.58"W x 6.81"H
• Weight: 26 lb
• Voltage: 12 V DC

Best for: Long-cycle start-stop car battery.

Why it ranks #6: The 80Ah solid-state battery is listed for passenger cars, trucks, and start-stop systems, but the supplied specifications do not state CCA.

LIPOWER’s stated 3,000-plus deep cycles and 10-year lifespan claim set this Group 27/27F solid-state battery apart for start-stop vehicle owners focused on long service intervals. Its 80Ah capacity, 26-pound weight, and five-year warranty offer additional decision points, though the supplied information does not state a CCA figure.

The listed 3,000-plus deep cycles and 10-year lifespan claim address longevity, while the 80Ah capacity indicates its stated energy storage. At 26 pounds, it is lighter to handle than many conventional battery listings, and its Group 27/27F designation serves multiple polarity layouts. The supplied guidance distinguishes standard Group 27 from 27F by positive-terminal position, which matters because factory cable lengths are fixed. No CCA rating is provided, so buyers requiring 1000 CCA cannot verify that requirement here.

Skip it if you require a verified 1000-CCA figure; no CCA rating is supplied for this LIPOWER battery.

This LIPOWER fits start-stop car or truck buyers prioritizing its stated lifespan and cycle claims, provided the Group 27/27F polarity matches the vehicle cables. It is not a documented choice for a 1000-CCA requirement.

Listed on Amazon as: Group 27/27F Car Battery, Solid State Start-Stop Battery

#7 · Lightest Listed

7. Interstate Li27M

• Dimensions: 6.61"D x 12.05"W x 8.19"H
• Weight: 23.1 lb
• Voltage: 12 V

Best for: Lightweight lithium marine storage.

Why it ranks #7: At 23.1 pounds, this marine deep-cycle lithium battery is the lightest listed; its 100Ah capacity and 10-year limited warranty are useful, but CCA is absent.

At 23.1 pounds, Interstate’s 100Ah LiFePO4 Group 27M battery weighs less than half the weight of regular batteries according to its listing, easing handling aboard boats or RVs. Its maintenance-free design and claim of up to ten times AGM cycle life make it a storage-focused alternative, though no CCA figure is supplied.

The 100Ah capacity supports marine or RV deep-cycle use, while the 23.1-pound weight can make installation and battery handling easier than heavier options. Interstate states that the lithium battery lasts up to ten times longer than AGM batteries and describes it as maintenance-free, addressing cycle life and routine upkeep. Its 12.05-by-6.61-by-8.19-inch dimensions support space planning. The listing gives no CCA rating, so buyers seeking 1000-CCA starting performance lack a figure to verify.

Skip it if you require a verified 1000-CCA rating; this Interstate listing does not provide a CCA figure.

Choose this Interstate for boat or RV owners seeking lightweight, maintenance-free 100Ah lithium deep-cycle storage. Its cycle-life claim may appeal for repeated use, but the supplied specifications do not confirm 1000-CCA starting performance.

Listed on Amazon as: Interstate Batteries 12V 100Ah LiFePO4 Marine Deep Cycle Battery, Group 27M

#8

8. VMAX XTR27-110

• Dimensions: 6.6"D x 12"W x 9.2"H
• Weight: 70 lb
• Voltage: 12 V

Best for: Maintenance-free marine AGM.

Why it ranks #8: The sealed marine AGM offers 110Ah and 220 minutes reserve capacity, but its listed details do not provide CCA for a starting-focused comparison.

A 220-minute reserve capacity is the VMAX XTR27-110’s defining practical figure, giving marine users a stated measure of sustained power between charging periods. Its 110Ah sealed AGM design resists shocks and vibration, and can be mounted in any position according to the listing, while no CCA rating is supplied.

The 110Ah capacity and 220-minute reserve capacity make this model relevant to marine buyers running equipment over extended intervals. Sealed AGM construction means there is no need to check electrolyte specific gravity or add water, reducing routine maintenance. The listing also says it resists shocks and vibration and can be mounted in any position, offering flexibility for installation in a boat. SAE and 5/16-inch stud terminals are included; no CCA figure is given for a 1000-CCA comparison.

Skip it if you require a stated 1000-CCA starting figure; VMAX provides capacity and reserve data but no CCA rating.

The VMAX suits boat owners prioritizing sealed, low-maintenance deep-cycle power, long stated reserve, and flexible mounting. Its supplied specifications do not establish whether it meets a 1000-CCA engine-starting requirement.

Listed on Amazon as: VMAX XTR27-110 AGM Marine Battery 12V 110Ah Group 27 Sealed Deep Cycle High Performance

#9

9. Power Queen 125Ah

• Dimensions: 6.69"D x 12.13"W x 8.31"H
• Weight: 25.1 lb
• Voltage: 12.8 V

Best for: Bluetooth RV energy storage.

Why it ranks #9: This 12.8V, 125Ah LiFePO4 battery is suited to RV, boat, and off-grid storage, but no CCA figure is supplied for starting comparisons.

Power Queen’s 125Ah LiFePO4 capacity gives this Group 27 battery a higher stated storage figure than many 100Ah-class options, supporting RV, boat, and off-grid energy use. Bluetooth and low-temperature features are included in the product description, while no CCA rating appears in the supplied specifications.

The 125Ah capacity supports extended energy storage for listed applications such as RVs, boats, trolling motors, and solar systems. Bluetooth is part of the included battery description, adding a connected feature to this storage-focused package; the supplied facts do not specify its monitoring functions, so expectations should stay limited. At 25.1 pounds and 12.13 by 6.69 by 8.31 inches, it is comparatively easy to handle and plan around. No cranking rating is supplied for buyers focused on 1000 CCA.

Skip it if you need a documented 1000-CCA engine-starting rating; this listing provides capacity but no CCA figure.

Choose Power Queen for RV, boat, or off-grid storage buyers who value 125Ah capacity, Bluetooth, and the listed low-temperature feature. Its supplied details do not establish suitability for a 1000-CCA starting target.

Listed on Amazon as: Power Queen 12V 125Ah LiFePO4 Lithium Battery Group 27 Bluetooth for RV

#10

10. U.S. Battery US 27DC

• Dimensions: 6.75"D x 12.75"W x 9.75"H
• Weight: 59 lb
• Voltage: 12 V

Best for: Two-battery deep-cycle setups.

Why it ranks #10: This two-battery flooded deep-cycle pack provides 105Ah per listed battery for RV, solar, or backup power, but no CCA is stated.

This U.S. Battery listing supplies two Group 27 flooded deep-cycle batteries, each specified at 105Ah, giving marine, RV, solar, or backup setups a paired storage option. The SAE/bolt terminals support installation flexibility, but the supplied information does not list CCA for engine-starting comparisons.

With two 12V batteries included and 105Ah specified for each, this package is oriented toward deep-cycle energy storage rather than a stated high-CCA starting role. Its flooded lead-acid chemistry and commercial-grade description suit applications needing dependable 12V deep-cycle power. Dimensions of 12.75 by 6.75 by 9.75 inches and 59-pound listed weight inform handling and installation planning. SAE/bolt terminals provide connection choices, while no CCA figure is supplied to assess a 1000-CCA starting requirement.

Skip it if you need a documented 1000-CCA starting battery; this two-pack is specified for deep-cycle use without a CCA figure.

This two-pack fits buyers setting up marine, RV, solar, or backup deep-cycle storage who can accommodate flooded batteries and their listed dimensions. It is not a verified pick for a 1000-CCA starting requirement.

Listed on Amazon as: US Battery US 27DC XC2 12V Flooded Lead Acid Deep Cycle Battery – Group 27 – 105Ah @ 20Hr – SAE/Bolt Terminals – Marine, RV, Solar & Backup Power – 2 Pack