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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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Mean Green Alternators MG8516

High Output Alternator for select 2005-2008 Mustang

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High Output Alternator for select 2005-2008 Mustang

• Compatible with select 2005-2008 Mustang
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

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$519.99

In stock.

• Compatible with select 2005-2008 Mustang
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

Stinger SPW312RD

500 ft. 12 Gauge Pro Series OFC Power Wire (Red)

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500 ft. 12 Gauge Pro Series OFC Power Wire (Red)

• 500 ft. 12 Gauge Pro Series Power Wire
• Pure (OFC) Oxygen Free Copper
• High current transfer and strand count
• Chemical and Temperature Resistant
• Color: Red

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List price $469.00
-38% $291.00

Available

Ships in 10-14 days

• 500 ft. 12 Gauge Pro Series Power Wire
• Pure (OFC) Oxygen Free Copper
• High current transfer and strand count
• Chemical and Temperature Resistant
• Color: Red

Stinger SPXYADP

Y Adapter Harness for Stinger SPXDBTC or COLORTRAIL RSCBTC Bluetooth Controller

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Y Adapter Harness for Stinger SPXDBTC or COLORTRAIL RSCBTC Bluetooth Controller

• Y Adapter for Stinger SPXDBTC or COLORTRAIL RSCBTC
• Adds additional lights to your SPXDBTC or RSCBTC
• Watertight and waterproof connectors

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List price $39.00
-26% $29.00

Available

Ships in 10-14 days

• Y Adapter for Stinger SPXDBTC or COLORTRAIL RSCBTC
• Adds additional lights to your SPXDBTC or RSCBTC
• Watertight and waterproof connectors

Kicker KMWPR8200 (47KMWPR8200)

200Ft. Red 8 Gauge Marine Power Wire

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200Ft. Red 8 Gauge Marine Power Wire

• Marine Rated Power Wire
• 8 AWG

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$329.99

Available

Ships in 10-14 days

• Marine Rated Power Wire
• 8 AWG

Kicker KMWPY8200 (47KMWPY8200)

200Ft. Yellow 8 Gauge Marine Power Wire

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200Ft. Yellow 8 Gauge Marine Power Wire

• Marine Rated Power Wire
• 8 AWG

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$329.99

Available

Ships in 10-14 days

• Marine Rated Power Wire
• 8 AWG

Shuriken SK-BT120 (Open Box, Good)

12V 120Ah Absorbed Glass Mat (AGM) Rechargeable Battery

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12V 120Ah Absorbed Glass Mat (AGM) Rechargeable Battery

• 12-volt Automotive Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat (AGM) design
• Perfect for 2400 watts car audio stereo systems
• Can be mounted in any position
• Can be fully discharged and re-charged

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List price $714.99
-46% $385.79

In stock

Only 2 Left!

• 12-volt Automotive Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat (AGM) design
• Perfect for 2400 watts car audio stereo systems
• Can be mounted in any position
• Can be fully discharged and re-charged

Stinger SPF5650

50 Amp MAXI Fuses - 3 Pack

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50 Amp MAXI Fuses - 3 Pack

• Reliable Circuit Protection
• High Conductivity Shoc-Krome Plating
• 3 Pack

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$9.95

Available

Ships in 10-14 days

• Reliable Circuit Protection
• High Conductivity Shoc-Krome Plating
• 3 Pack

Cerwin-Vega RPMATC

8-Gauge Input 8-Gauge Output Waterproof ATC Fuse Holder

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8-Gauge Input 8-Gauge Output Waterproof ATC Fuse Holder

• Waterproof ATC Fuse Holder
• Maximum Input Gauge Size: 8 AWG
• Maximum Ouput Gauge Size: 8 AWG
• Nickel Plated Material

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List price $35.99
-17% $29.99

Available

Ships in 10-14 days

• Waterproof ATC Fuse Holder
• Maximum Input Gauge Size: 8 AWG
• Maximum Ouput Gauge Size: 8 AWG
• Nickel Plated Material

Rockford Fosgate 51 Foot Spool of 1/0 AWG Pure Crystal-Oxygen Free Copper Wire

51 ft Spool of Frosted Black 1/0 AWG Wire (RFW1B-51)

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51 ft Spool of Frosted Black 1/0 AWG Wire (RFW1B-51)

• Meets or Exceed AWG specifications
• Conform to the CEA-2015 industry standard
• BC-5W2 spec for use on boats and non-commercial marine vessels
• Pure Crystal-Oxygen Free Copper (PC-OFC)
• 1/0AWG (53.5mm²) 4,704 strands

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1
$659.99

Available

Ships in 10-14 days

• Meets or Exceed AWG specifications
• Conform to the CEA-2015 industry standard
• BC-5W2 spec for use on boats and non-commercial marine vessels
• Pure Crystal-Oxygen Free Copper (PC-OFC)
• 1/0AWG (53.5mm²) 4,704 strands

Install Bay PMX-3000

3000W Pure Sine Wave 12VDC to 120V AC Inverter

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3000W Pure Sine Wave 12VDC to 120V AC Inverter

• PMX series inverts 12VDC to AC
• 3000w
• Meets 120V AC electronic appliance safety operating standard
• Can be used to power most electronic appliances or equipment
• High-efficiency output

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List price $1338.99
-10% $1,204.99

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Ships in 10-14 days

• PMX series inverts 12VDC to AC
• 3000w
• Meets 120V AC electronic appliance safety operating standard
• Can be used to power most electronic appliances or equipment
• High-efficiency output

Metra ATRDT-R

Right-Facing ATR Fuse Taps (Pack of 10)

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Right-Facing ATR Fuse Taps (Pack of 10)

• Right-facing fuse taps (Pack of 10)
• Ideal for adding 12-volt accessories to vehicles with a standard fuse slot
• Supports two fuse holders
• Allows for installation of additional circuits without splicing or cutting
• High-quality construction

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List price $66.99
-10% $59.99

Available

Ships in 10-14 days

• Right-facing fuse taps (Pack of 10)
• Ideal for adding 12-volt accessories to vehicles with a standard fuse slot
• Supports two fuse holders
• Allows for installation of additional circuits without splicing or cutting
• High-quality construction

Install Bay ATC5-25

5A ATC Fuses - Package of 25

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5A ATC Fuses - Package of 25

• Pack of 25 ATC Fuses
• Power Rating: 5A
• See-Through Windows
• High-Temperature Plastic Casings
• Circuit Protection
• High Conductivity

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List price $7.99
-13% $6.99

Available

Ships in 10-14 days

• Pack of 25 ATC Fuses
• Power Rating: 5A
• See-Through Windows
• High-Temperature Plastic Casings
• Circuit Protection
• High Conductivity

Install Bay E-ATR30

30A 2 Leg Micro ATR Fuses - Pack of 5

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30A 2 Leg Micro ATR Fuses - Pack of 5

• Pack of 5 Micro-ATR Fuses
• Power Rating: 30A
• See-Through Windows
• High-Temperature Plastic Casings
• Circuit Protection
• High Conductivity

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List price $6.99
-14% $5.99

Available

Ships in 10-14 days

• Pack of 5 Micro-ATR Fuses
• Power Rating: 30A
• See-Through Windows
• High-Temperature Plastic Casings
• Circuit Protection
• High Conductivity

Install Bay E-ATR25

25A 2 Leg Micro ATR Fuses - Pack of 5

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25A 2 Leg Micro ATR Fuses - Pack of 5

• Pack of 5 Micro-ATR Fuses
• Power Rating: 30A
• See-Through Windows
• High-Temperature Plastic Casings
• Circuit Protection
• High Conductivity

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List price $6.99
-14% $5.99

Available

Ships in 10-14 days

• Pack of 5 Micro-ATR Fuses
• Power Rating: 30A
• See-Through Windows
• High-Temperature Plastic Casings
• Circuit Protection
• High Conductivity

Install Bay E-ATR20

20A 2 Leg Micro ATR Fuses - Pack of 5

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20A 2 Leg Micro ATR Fuses - Pack of 5

• Pack of 5 Micro-ATR Fuses
• Power Rating: 20A
• See-Through Windows
• High-Temperature Plastic Casings
• Circuit Protection
• High Conductivity

shipping truck icon Free shipping in USA. Provide zip for delivery date.
List price $6.99
-14% $5.99

Available

Ships in 10-14 days

• Pack of 5 Micro-ATR Fuses
• Power Rating: 20A
• See-Through Windows
• High-Temperature Plastic Casings
• Circuit Protection
• High Conductivity

Mean Green Alternators MG1290

High Output Alternator for select 2008-2010 vehicles from Ford

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High Output Alternator for select 2008-2010 vehicles from Ford

• High output alternator
• Compatible with select 2008-2010 vehicles from Ford
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

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

In stock.

• High output alternator
• Compatible with select 2008-2010 vehicles from Ford
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

Mean Green Alternators MG1293

High Output Alternator for select 2009-2010 vehicles from Ford

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High Output Alternator for select 2009-2010 vehicles from Ford

• High output alternator
• Compatible with select 2009-2010 vehicles from Ford
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

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

In stock.

• High output alternator
• Compatible with select 2009-2010 vehicles from Ford
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

Mean Green Alternators MG11350HD

300 Amp High Output Alternator for select 2007-2025 vehicles from Toyota

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300 Amp High Output Alternator for select 2007-2025 vehicles from Toyota

• Easy 5-minute installation
• Compatible with select 2007-2025 vehicles from Toyota 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 2007-2025 vehicles from Toyota 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 MG1391HD

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

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

• Easy 5-minute installation
• Compatible with select 2007-2025 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

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

In stock.

• Easy 5-minute installation
• Compatible with select 2007-2025 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 MG1392HD

300 Amp High Output Alternator for select 2007-2009 Ram 2500 / 1500 / 3500 and Durango

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300 Amp High Output Alternator for select 2007-2009 Ram 2500 / 1500 / 3500 and Durango

• Easy 5-minute installation
• Compatible with select 2007-2009 Ram 2500 / 1500 / 3500 and Durango 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 2007-2009 Ram 2500 / 1500 / 3500 and Durango 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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    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.