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Car Batteries, Power & Battery Accessories

Sometimes your high powered audio systems are going to require too much power than what your normal battery is able to produce. Lucky for you, you will find your ideal high-performance power cells right here as we offer the best car battery prices online. We also carry a large variety of auto accessories and battery chargers to help you with the installation of your high performance 12 volt battery or power cell.

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Kicker KMWPY820 (47KMWPY820)

20 ft. 8 Gauge Full-Spec Hyper-Flex Marine Power Wire (Yellow)

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20 ft. 8 Gauge Full-Spec Hyper-Flex Marine Power Wire (Yellow)

• 8 gauge Power Cable
• OFC (100% Oxygen-Free Copper) material
• Full-spec hyper-flex cable design
• Plated in anti-corrosive 99.9% tin
• Length: 20 feet (6 meter)

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$29.99

In stock

Only 1 Left!

• 8 gauge Power Cable
• OFC (100% Oxygen-Free Copper) material
• Full-spec hyper-flex cable design
• Plated in anti-corrosive 99.9% tin
• Length: 20 feet (6 meter)

Mean Green Alternators MG1572

High Output Alternator for select 2011-2018 Grand Cherokee

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High Output Alternator for select 2011-2018 Grand Cherokee

• High output alternator
• Compatible with select 2011-2018 Grand Cherokee
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

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$519.99

In stock.

• High output alternator
• Compatible with select 2011-2018 Grand Cherokee
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

Mean Green Alternators MG1575

High Output Alternator for select 2011-2018 Grand Cherokee

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High Output Alternator for select 2011-2018 Grand Cherokee

• High output alternator
• Compatible with select 2011-2018 Grand Cherokee
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

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$519.99

In stock.

• High output alternator
• Compatible with select 2011-2018 Grand Cherokee
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

Mean Green Alternators MG7128

200 Amp High Output Alternator for select 1981-1990 vehicles from Chevrolet, GMC, Pontiac

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200 Amp High Output Alternator for select 1981-1990 vehicles from Chevrolet, GMC, Pontiac

• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

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$519.99

In stock.

• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

Mean Green Alternators MG7769

High Output Alternator for select 1993-1998 vehicles from Ford

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High Output Alternator for select 1993-1998 vehicles from Ford

• High output alternator
• Compatible with select 1993-1998 vehicles from Ford
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

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$519.99

In stock.

• High output alternator
• Compatible with select 1993-1998 vehicles from Ford
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

Stinger SPW18TR

600watts Red 8GA Power Cable Roll

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600watts Red 8GA Power Cable Roll

• 8GA Power Cable Roll
• 100% True Spec Copper Wire
• 76 Meter Roll
• Hyper twist construction

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List price $619.00
-67% $205.99

Available

Ships in 10-14 days

• 8GA Power Cable Roll
• 100% True Spec Copper Wire
• 76 Meter Roll
• Hyper twist construction

Stinger SSPW18WH

500 ft. 18 Gauge Primary Wire (White)

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500 ft. 18 Gauge Primary Wire (White)

• 500 feet 18 Gauge Primary Wire
• Made from copper material
• Fine multi-strand copper conductors
• Color: White

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List price $129.00
-64% $47.00

Available

Ships in 10-14 days

• 500 feet 18 Gauge Primary Wire
• Made from copper material
• Fine multi-strand copper conductors
• Color: White

Stinger SSPW18YL

500 ft. 18 Gauge Primary Wire (Yellow)

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500 ft. 18 Gauge Primary Wire (Yellow)

• 500 feet 18 Gauge Primary Wire
• Made from copper material
• Fine multi-strand copper conductors
• Color: Yellow

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List price $129.00
-64% $47.00

Available

Ships in 10-14 days

• 500 feet 18 Gauge Primary Wire
• Made from copper material
• Fine multi-strand copper conductors
• Color: Yellow

JL Audio XMD-MCB-30

Waterproof, Ignition Protected Circuit Breaker: 30 Amp

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Waterproof, Ignition Protected Circuit Breaker: 30 Amp

• Manual Reset Design with High-Visibility Switch
• Suitable for use in marine engine compartments and fuel tank spaces
• Withstands immersion in water up to 1 meter deep
• Stainless Steel Connection Points

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$99.99

In stock

Only 1 Left!

• Manual Reset Design with High-Visibility Switch
• Suitable for use in marine engine compartments and fuel tank spaces
• Withstands immersion in water up to 1 meter deep
• Stainless Steel Connection Points

DS18 MDSA10/4.30FT

30 Ft. 10-Channel Medusa Snake RCA Harness with 12 Gauge Power Wire

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30 Ft. 10-Channel Medusa Snake RCA Harness with 12 Gauge Power Wire

• 30-feet Medusa 10-channel RCA with (4) 12 gauge power wire
• Tiffany style 10-channel RCA
• 12 gauge oxygen-free copper power wire
• Water resistant, able to withstand harsh environments

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List price $215.99
-17% $179.95

In stock.

• 30-feet Medusa 10-channel RCA with (4) 12 gauge power wire
• Tiffany style 10-channel RCA
• 12 gauge oxygen-free copper power wire
• Water resistant, able to withstand harsh environments

XS Power Titan8 (RSV-S5)

2500W 20Ah Lithium Titanate Oxide Battery

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2500W 20Ah Lithium Titanate Oxide Battery

• 12-volt Lithium Battery
• Sealed Lithium Titanate Oxide (LTO) design
• High-power lithium cell for high-burst output and higher-reserve capacity
• Fits in a factory under hood location

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List price $789.99
-5% $749.99

In stock

Only 1 Left!

• 12-volt Lithium Battery
• Sealed Lithium Titanate Oxide (LTO) design
• High-power lithium cell for high-burst output and higher-reserve capacity
• Fits in a factory under hood location

JL Audio XD-BPW2-50

2 AWG 50 ft (15.2 m) Spool of Translucent Blue Power Wire

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2 AWG 50 ft (15.2 m) Spool of Translucent Blue Power Wire

• True 2 AWG specification wire
• 2,940 strands of pure OFC Copper
• Tinned for corrosion resistance (marine-ready)
• Soft, flexible PVC Jacket

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$579.99

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Ships in 10-14 days

• True 2 AWG specification wire
• 2,940 strands of pure OFC Copper
• Tinned for corrosion resistance (marine-ready)
• Soft, flexible PVC Jacket

The Install Bay IB80

80 Amp Battery Isolator and Relay

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80 Amp Battery Isolator and Relay

• Battery Isolator and Relay
• 80 Amp
• Prevents Primary Battery Discharge
• Maximizes the Current Transfer
• Extends Battery Life
• Universal 12V Applications

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List price $32.99
-12% $28.99

Available

Ships in 10-14 days

• Battery Isolator and Relay
• 80 Amp
• Prevents Primary Battery Discharge
• Maximizes the Current Transfer
• Extends Battery Life
• Universal 12V Applications

Shuriken SK-BT75

12V 75Ah Absorbed Glass Mat (AGM) Rechargeable Battery

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12V 75Ah Absorbed Glass Mat (AGM) Rechargeable Battery

• 12-volt Automotive Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat (AGM) design
• Perfect for 1750 watts car audio stereo systems
• Can be mounted in any position
• Can be fully discharged and re-charged

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List price $319.99
-6% $299.99

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XS Power Li-PSX14Q

1000W 5.2Ah Lithium Iron Phosphate Powersports Battery

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1000W 5.2Ah Lithium Iron Phosphate Powersports Battery

• 12-Volt Powersports Battery
• Sealed Lithium Iron Phosphate (LFP) design
• BCI Group 14/14L
• Includes M6 terminal hardware
• Extremely lightweight design

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List price $279.99
-11% $249.99

Available

Ships in 10-14 days

• 12-Volt Powersports Battery
• Sealed Lithium Iron Phosphate (LFP) design
• BCI Group 14/14L
• Includes M6 terminal hardware
• Extremely lightweight design

Mean Green Alternators MG1390HD

300 Amp High Output Alternator for select 2009-2025 vehicles from Ram, Dodge

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300 Amp High Output Alternator for select 2009-2025 vehicles from Ram, Dodge

• Easy 5-minute installation
• Compatible with select 2009-2025 vehicles from Ram, Dodge Vehicles
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

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$719.99

In stock.

• Easy 5-minute installation
• Compatible with select 2009-2025 vehicles from Ram, Dodge Vehicles
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

Mean Green Alternators MG1572HD

300 Amp High Output Alternator for select 2011-2018 Grand Cherokee

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300 Amp High Output Alternator for select 2011-2018 Grand Cherokee

• Easy 5-minute installation
• Compatible with select 2011-2018 Grand Cherokee Vehicles
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

shipping truck icon Free shipping in USA. Provide zip for delivery date.
$719.99

In stock.

• Easy 5-minute installation
• Compatible with select 2011-2018 Grand Cherokee Vehicles
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

XS Power Li-S1600

5000W 23.4 Ah Lithium Iron Phosphate Racing Battery

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5000W 23.4 Ah Lithium Iron Phosphate Racing Battery

• 16-volt Lithium Racing Battery
• Sealed Lithium Iron Phosphate (LFP) design
• High-power lithium cell for high-burst output and higher-reserve capacity
• Includes XS Power LI1615 IntelliCharger

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List price $979.99
-18% $799.99

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Ships in 10-14 days

• 16-volt Lithium Racing Battery
• Sealed Lithium Iron Phosphate (LFP) design
• High-power lithium cell for high-burst output and higher-reserve capacity
• Includes XS Power LI1615 IntelliCharger

Mean Green Alternators MG1391SHD

375 Amp High Output Alternator for select 2007-2025 vehicles from Ram, Dodge

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375 Amp High Output Alternator for select 2007-2025 vehicles from Ram, Dodge

• 375 Amp at 2000 RPMs high output alternator
• Compatible with select 2007-2025 vehicles from Ram, Dodge
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

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$879.99

In stock.

• 375 Amp at 2000 RPMs high output alternator
• Compatible with select 2007-2025 vehicles from Ram, Dodge
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

DS18 INF-35AH

12V 35Ah Absorbent Glass Mat (AGM) Motorcycle and ATV Power Cell Battery

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12V 35Ah Absorbent Glass Mat (AGM) Motorcycle and ATV Power Cell Battery

• 12.8-volt Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat design
• Perfect for 1250W motorcycle and ATV audio systems
• Thread Lead Alloy Recessed / M6 Bolt
• Mounts upside down or in multiple configurations

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Ships in 10-14 days

• 12.8-volt Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat design
• Perfect for 1250W motorcycle and ATV audio systems
• Thread Lead Alloy Recessed / M6 Bolt
• Mounts upside down or in multiple configurations

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    FAQ Frequently asked questions in Car Batteries, Power & Battery Accessories


    Car batteries, power, and battery accessories are crucial components for any vehicle.

    Car Batteries: These are rechargeable devices that store electrical energy in a chemical form, converting it into electrical power to start your vehicle's engine and power various electrical systems. They are essential because they provide the initial jolt of electricity needed to start the engine and continue to supply power when the alternator isn't running, such as when the engine is off.

    Power Accessories: These include alternators and generators, which recharge the battery and supply power to the vehicle's electrical systems while the engine is running. Voltage regulators ensure a stable supply of electrical power, preventing overcharging. Without these components, your vehicle's battery would eventually run out of power, leaving you stranded.

    Battery Accessories: These encompass components like battery terminals, cables, and connectors. Properly maintained connections are essential for the efficient flow of electrical power within your vehicle. Corroded or loose terminals can lead to poor electrical performance and starting issues.

    In summary, car batteries, power, and battery accessories are essential because they provide the electrical energy needed to start your vehicle, keep it running, and operate various electrical systems, ensuring your vehicle functions properly and reliably.

    Selecting the correct battery terminal involves considering the type of battery and the cable connection you have. First, determine if you have a top-post or side-post battery, as different terminals are designed to fit each type. Next, identify the cable size (usually stated in gauge) to ensure the terminal can accommodate the cable diameter properly. Look for high-quality materials such as copper or brass terminals, as they provide excellent conductivity and resist corrosion. Some terminals also come with additional features, like multiple connection points for additional accessories. It's crucial to choose a terminal that matches your battery and cable specifications to ensure a secure and reliable electrical connection.
    Yes, a battery disconnect switch is an effective way to prevent battery drain when your vehicle is not in use for an extended period. When the switch is in the ""off"" position, it completely cuts off power flow from the battery to the vehicle's electrical system. This prevents any parasitic draws or power-consuming devices from draining the battery during storage or inactivity. Battery disconnect switches are particularly useful for seasonal or seldom-used vehicles, such as boats, RVs, or classic cars. By using a disconnect switch, you can preserve the battery's charge and extend its lifespan, ensuring it remains ready to start your vehicle when needed.
    A battery charger or maintainer helps prolong the life of your car battery by ensuring it remains adequately charged, especially during periods of inactivity. When a vehicle is not driven regularly, the battery can gradually lose charge due to natural self-discharge and parasitic draws. Battery chargers and maintainers are designed to provide a steady and controlled flow of current to the battery, replenishing any lost charge. This prevents the battery from fully discharging, which can lead to sulfation and reduced battery capacity. Additionally, some smart chargers have maintenance modes that automatically adjust the charging rate to keep the battery at an optimal charge level without overcharging it. By keeping the battery in good condition and fully charged, a battery charger or maintainer helps extend its overall lifespan and ensures reliable performance.
    Yes, safety is essential when working with car battery accessories. Before attempting any installation or maintenance, always disconnect the vehicle's negative battery terminal to avoid accidental electrical shocks or short circuits. When working with battery terminals, wear appropriate safety gear, such as gloves and eye protection, to protect against battery acid and corrosion. Ensure all connections are tight and secure to prevent power loss or electrical hazards. When using battery chargers or maintainers, follow the manufacturer's instructions carefully and avoid overcharging the battery. Overcharging can lead to hydrogen gas buildup, which is flammable and poses a safety risk. It's also crucial to work in a well-ventilated area to dissipate any battery gases safely. If you are unsure or uncomfortable with any aspect of the installation or maintenance, it's best to seek professional assistance to ensure proper and safe operation of your car battery accessories.

    All About

    Car Batteries, Power & Battery Accessories
    Car Batteries & Power Cells: For those that are looking to install some moderate to high powered aftermarket audio equipment in their car, it is smart to supplement the vehicles electrical system with a secondary car battery or power cell. It is important to make sure that the new car audio system will not place too much stress on the electrical system. Many times, dimming lights can be a great indicator that the electrical system needs to be upgraded. A great place to start is by replacing the starting battery with a more powerful auto battery. If more power is still needed, then it is recommended that a secondary battery be installed in the car. Here you will find our selection of high performance car batteries, power cells, battery isolators, and more. To find out more about car audio batteries, power cells, isolators, call our friendly support team at 1-877-289-7664.

    Looking to enhance your car's battery performance and optimize your car audio system? Look no further! Sonic Electronix offers a wide range of top-quality car battery accessories that ensure reliable power supply and improved audio performance. Discover the best car battery accessories on this page and take your car audio experience to new heights!

    Car Battery Accessories - Empowering Your Vehicle's Electrical System

    Car battery accessories play a crucial role in supporting your car's electrical system and ensuring a smooth and efficient power flow. These accessories are designed to optimize your car battery's performance and enhance the overall functionality of your vehicle's electrical components.

    One of the primary car battery accessories is the battery terminal. High-quality battery terminals provide a secure connection between your car's battery and the power cables, reducing the risk of power loss and voltage drops. Upgrading to heavy-duty battery terminals improves conductivity, reduces resistance, and maximizes the efficiency of your car's electrical system.

    Another essential car battery accessory is the battery isolator. This device allows you to connect multiple batteries to your car's electrical system while preventing power drain from one battery to another. A battery isolator ensures that each battery serves its intended purpose and remains fully charged, making it ideal for vehicles with multiple batteries, such as RVs and marine applications.

    Expert Assistance - Your Trusted Car Audio Advisors

    At Sonic Electronix, we are dedicated to providing our customers with the best car battery accessories tailored to their unique needs. Our team of car audio experts is readily available to assist you in finding the perfect battery accessories to complement your car audio setup. Whether you need help choosing the right battery terminal or battery isolator, we have the knowledge and expertise to guide you through the selection process.

    Feel free to call us at 1-502-200-8010, and our friendly and experienced staff will be delighted to answer your questions, offer recommendations, and ensure you have a seamless shopping experience.

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    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.