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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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Stinger SPD5101

AGU Fuse Holder with 4/8 Gauge Inputs and ShocKrome Finish

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AGU Fuse Holder with 4/8 Gauge Inputs and ShocKrome Finish

• AGU Fuse Holder
• One 4AWG Or 8AWG Input
• One 4AWG Or 8AWG Output
• ShocKrome Finish
• Set-Screw Terminals

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List price $19.00
-47% $9.99

In stock

• AGU Fuse Holder
• One 4AWG Or 8AWG Input
• One 4AWG Or 8AWG Output
• ShocKrome Finish
• Set-Screw Terminals

Mean Green Alternators MG8478

220 Amp High Output Alternator for select 2006-2008 vehicles from Ford

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220 Amp High Output Alternator for select 2006-2008 vehicles from Ford

• 220 Amp high output alternator
• Compatible with select 2006-2008 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.

• 220 Amp high output alternator
• Compatible with select 2006-2008 vehicles from Ford
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

Energie PR3600

12V 75Ah Power Cell Battery

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12V 75Ah Power Cell Battery

• Nominal Voltage: 12 Volts
• Amplifier Wattage: 3600 Watts
• Capacity: 75 Ah
• Positive Terminal: Left

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List price $403.06
-20% $322.45

In stock

• Nominal Voltage: 12 Volts
• Amplifier Wattage: 3600 Watts
• Capacity: 75 Ah
• Positive Terminal: Left

Stinger SGP90501

50 Amp Circuit Breaker

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50 Amp Circuit Breaker

• 50 Amp Circuit Breaker
• Dust and splash proof
• Accepts 4 or 8 gauge wire
• Push button reset can also be used as a kill switch
• Easily mount on firewall or other panels

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List price $139.00
-68% $43.99

In stock

• 50 Amp Circuit Breaker
• Dust and splash proof
• Accepts 4 or 8 gauge wire
• Push button reset can also be used as a kill switch
• Easily mount on firewall or other panels

Install Bay ATMDT-1

Add-a-Fuse Dual Mini ATM Fuse Tap Kit - 1 PC

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Add-a-Fuse Dual Mini ATM Fuse Tap Kit - 1 PC

• Dual Mini ATM Fuse Tap Kit
• Add a Fuse

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List price $12.99
-15% $10.99

In stock

• Dual Mini ATM Fuse Tap Kit
• Add a Fuse

Energie PR2800

12V 55Ah Power Cell Battery

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12V 55Ah Power Cell Battery

• Nominal Voltage: 12 Volts
• Amplifier Wattage: 2800 Watts
• Capacity: 55 Ah
• Positive Terminal: Left

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List price $316.94
-20% $253.55

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Only 1 Left!

• Nominal Voltage: 12 Volts
• Amplifier Wattage: 2800 Watts
• Capacity: 55 Ah
• Positive Terminal: Left

Stinger SPW318BK

PRO Series 18 Gauge Black Primary Wire 500ft Roll

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PRO Series 18 Gauge Black Primary Wire 500ft Roll

• Single conductor wire
• Length: 500ft
• Flexible jacket
• Gauge: 18 Gauge

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1
List price $129.00
-47% $67.99

In stock

• Single conductor wire
• Length: 500ft
• Flexible jacket
• Gauge: 18 Gauge

JL Audio XD-MFBW-MAXI

Water-Resistant 4 To 8 Gauge Master MAXI Fuse Block

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Water-Resistant 4 To 8 Gauge Master MAXI Fuse Block

• Water-Resistant Master MAXI Fuse Block
• 4 AWG to 8 AWG Power Wire
• Used In Under-Hood Applications For Amp Installation

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$49.99

Available

Ships in 10-14 days

• Water-Resistant Master MAXI Fuse Block
• 4 AWG to 8 AWG Power Wire
• Used In Under-Hood Applications For Amp Installation

Stinger SPW110TB500

500 Ft. 10 Gauge Pro Series 100% Oxygen Free Copper Power Wire (Black)

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500 Ft. 10 Gauge Pro Series 100% Oxygen Free Copper Power Wire (Black)

• 500 feet 10 gauge Power Wire
• OFC (100% Oxygen-Free Copper) material
• Color: Black
• Ultra flexible matte jacket

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List price $799.00
-32% $543.00

Available

Ships in 10-14 days

• 500 feet 10 gauge Power Wire
• OFC (100% Oxygen-Free Copper) material
• Color: Black
• Ultra flexible matte jacket

Sundown SA150-975 (SA150)

1200W Peak 12V Ultracapacitor Battery (BT-SA150-975)

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1200W Peak 12V Ultracapacitor Battery (BT-SA150-975)

• Non-digital 150 farads capacitor
• Made for systems up to 1200 watts
• Includes mounting hardware for a secure installation

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List price $359.99
-17% $299.99

In stock

Only 3 Left!

• Non-digital 150 farads capacitor
• Made for systems up to 1200 watts
• Includes mounting hardware for a secure installation

Install Bay Dual ATC Fuse Tap Kit (ATCDT-1)

Add-a-Circuit Dual ATC Fuse Tap Kit

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Add-a-Circuit Dual ATC Fuse Tap Kit

• ATC Dual Add A Fuse
• Add-a-Circuit

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List price $13.99
-14% $11.99

In stock

• ATC Dual Add A Fuse
• Add-a-Circuit

Mean Green Alternators MG8247SHD

375 Amp High Output Alternator for select 1996-2007 vehicles from GMC, Chevrolet, Hummer

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375 Amp High Output Alternator for select 1996-2007 vehicles from GMC, Chevrolet, Hummer

• Precision Balanced for Smooth Operation
• Compatible with select 1996-2007 vehicles from GMC, Chevrolet, Hummer Vehicles
• Easy 5-minute installation
• Up to 300% more power
• Tool-grade steel rotor shaft
• Heavy duty double sealed bearings
• Heat resistant multifunction integrated regulator

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$879.99

In stock.

• Precision Balanced for Smooth Operation
• Compatible with select 1996-2007 vehicles from GMC, Chevrolet, Hummer Vehicles
• Easy 5-minute installation
• Up to 300% more power
• Tool-grade steel rotor shaft
• Heavy duty double sealed bearings
• Heat resistant multifunction integrated regulator

Stinger SPT53103

Positive Battery Terminal Accepts (2) 5/16" Ring Terminals

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Positive Battery Terminal Accepts (2) 5/16" Ring Terminals

• Clear Translucent Design
• Accepts Two 5/16" Ring Terminals
• Multiple Output Design

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List price $69.00
-51% $33.99

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Only 1 Left!

• Clear Translucent Design
• Accepts Two 5/16" Ring Terminals
• Multiple Output Design

XS Power Titan8 (PWR-S5-1200)

5000W 20Ah Lithium Titanate Oxide Car Battery for Domestic and Japanese Cars

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5000W 20Ah Lithium Titanate Oxide Car Battery for Domestic and Japanese Cars

• 12-volt Lithium Car Battery
• Sealed Lithium Titanate Oxide (LTO) design
• Perfect for Domestic or Japanese vehicle models
• Great for stock or aftermarket alternators

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$699.99

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• 12-volt Lithium Car Battery
• Sealed Lithium Titanate Oxide (LTO) design
• Perfect for Domestic or Japanese vehicle models
• Great for stock or aftermarket alternators

Sundown Audio WPBF1/0 (WPBF-1/0)

1/0 Gauge Waterproof ANL Fuse Holder with 300A Fuse

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1/0 Gauge Waterproof ANL Fuse Holder with 300A Fuse

• ANL Fuse Holder with 300-amp ANL Fuse
• Maximum Input Gauge Size: 1/0 AWG
• Maximum Ouput Gauge Size: 1/0 AWG
• Total Number of Inputs: 1
• Total Number of Outputs: 1
• Corrosion-resistant Shoc-Krome plating

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1
List price $31.19
-17% $25.99

In stock

• ANL Fuse Holder with 300-amp ANL Fuse
• Maximum Input Gauge Size: 1/0 AWG
• Maximum Ouput Gauge Size: 1/0 AWG
• Total Number of Inputs: 1
• Total Number of Outputs: 1
• Corrosion-resistant Shoc-Krome plating

JL Audio XMD-MCB-40

Waterproof, Ignition Protected Circuit Breaker: 40 Amp

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Waterproof, Ignition Protected Circuit Breaker: 40 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

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• 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

SPL-LAB SMART Voltmeter

12V SMART Digital Voltmeter

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12V SMART Digital Voltmeter

• Multifunctional digital car voltmeter
• Three working modes, including sag, swell, indication and protection
• 4 control buttons and 3 colored LEDs
• Power: 12V

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$69.00

Available

Ships in 10-14 days

• Multifunctional digital car voltmeter
• Three working modes, including sag, swell, indication and protection
• 4 control buttons and 3 colored LEDs
• Power: 12V

JL Audio XD-BPW60A-100 (Black)

100 Ft. of 60A Oxygen Free Copper Power Wire (Black)

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100 Ft. of 60A Oxygen Free Copper Power Wire (Black)

• 60 Amp capacity
• Pure OFC Copper
• Compact strand orientation and high strand count
• Soft, flexible PVC Jacket

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$429.99

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Ships in 10-14 days

• 60 Amp capacity
• Pure OFC Copper
• Compact strand orientation and high strand count
• Soft, flexible PVC Jacket

Limitless Lithium NoLi-50AH

12V 50Ah Sodium-Ion (SIB) Car Power Cell Battery

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12V 50Ah Sodium-Ion (SIB) Car Power Cell Battery

• 12-volt Sodium Car Audio Power Cell
• Sealed SIB (Sodium Ion Battery) design
• Perfect for 6500 - 8000 watt car audio stereo systems
• 4000 Cell Life Cycles at 80% DOD
• Superior voltage stability under heavy load

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$1,199.00

In stock

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• 12-volt Sodium Car Audio Power Cell
• Sealed SIB (Sodium Ion Battery) design
• Perfect for 6500 - 8000 watt car audio stereo systems
• 4000 Cell Life Cycles at 80% DOD
• Superior voltage stability under heavy load

Stinger SPW10TR

50 Ft. 1/0 Gauge Pro Series 100% Oxygen Free Copper Power Wire (Red)

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50 Ft. 1/0 Gauge Pro Series 100% Oxygen Free Copper Power Wire (Red)

• 50 feet 1/0 gauge Power Wire
• OFC (100% Oxygen-Free Copper) material
• Color: Red
• Ultra flexible matte jacket and 4214 strand count

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List price $819.00
-32% $557.00

In stock

Only 2 Left!

• 50 feet 1/0 gauge Power Wire
• OFC (100% Oxygen-Free Copper) material
• Color: Red
• Ultra flexible matte jacket and 4214 strand count

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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.