Garage
Shop

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.

Top sellers

Loading...
filter-icon Filters & Sort

4 Pack of 100 Amp Nickel-Plated MANL Fuse (Belva BMANL100)

Four fuses per order. High quality 100 Amp MANL Fuses

BMANL100 big
Go to item page Right Arrow Icon of Right Arrow

Four fuses per order. High quality 100 Amp MANL Fuses

• 100A MANL Fuse (4 Pack)
• Nickel Plated for Better Power Transfer
• Resealable Polybag
• Heavy Duty Construction

shipping truck icon Free shipping in USA. Provide zip for delivery date.
17
List price $8.99
-56% $3.99

In stock

• 100A MANL Fuse (4 Pack)
• Nickel Plated for Better Power Transfer
• Resealable Polybag
• Heavy Duty Construction

NVX XW4BK5

5 ft 4-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (Black)

XW4BK5 big
Go to item page Right Arrow Icon of Right Arrow

5 ft 4-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (Black)

• 5 feet 4 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Black

shipping truck icon Free shipping in USA. Provide zip for delivery date.
5
List price $29.99
-33% $19.99

In stock

• 5 feet 4 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Black

Lowest price in 30 days

Energie PR4800

12V 110Ah Absorbent Glass Mat (AGM) Car Battery

PR4800 big
Go to item page Right Arrow Icon of Right Arrow

12V 110Ah Absorbent Glass Mat (AGM) Car Battery

• 12-volt Absorbent Glass Mat Car Audio Battery
• Sealed Absorbent Glass Mat (AGM) design
• Perfect for 4800W car audio stereo systems
• Left positive terminal

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $30.00 in rewards to spend later

6
List price $514.77
-42% $299.99

In stock

• 12-volt Absorbent Glass Mat Car Audio Battery
• Sealed Absorbent Glass Mat (AGM) design
• Perfect for 4800W car audio stereo systems
• Left positive terminal

Belva 1.0 Farad Capacitor

1.0 Farad Capacitor with Digital Red Display

BB1D big
Go to item page Right Arrow Icon of Right Arrow

1.0 Farad Capacitor with Digital Red Display

• 1.0 Farad Power Capacitor
• Perfect for Systems up to 1000 Watts
• Audible Warning
• Red Voltage Display
• Mounting Brackets Included

shipping truck icon Free shipping in USA. Provide zip for delivery date.
80
List price $79.99
-51% $38.99

In stock

Used from: $29.99

• 1.0 Farad Power Capacitor
• Perfect for Systems up to 1000 Watts
• Audible Warning
• Red Voltage Display
• Mounting Brackets Included

Cobra PRO 2500W (CPI2500W)

5000W Peak (2500W RMS) DC to AC Professional Grade Power Inverter with USB Fast Charging

CPI2500W big
Go to item page Right Arrow Icon of Right Arrow

5000W Peak (2500W RMS) DC to AC Professional Grade Power Inverter with USB Fast Charging

• Modified Sine Professional Grade Power Inverter
• 2500 watts RMS, 5000 watts Peak
• Includes direct to battery cables
• LED digital display indicator
• Rugged industrial design

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $33.00 in rewards to spend later

$329.95

In stock

Only 2 Left!

• Modified Sine Professional Grade Power Inverter
• 2500 watts RMS, 5000 watts Peak
• Includes direct to battery cables
• LED digital display indicator
• Rugged industrial design

Stinger SGP90801

80 Amp Circuit Breaker

SGP90801 big
Go to item page Right Arrow Icon of Right Arrow

80 Amp Circuit Breaker

• 80 Amp Circuit Breaker
• Dust and splash proof
• Accepts 1/0 or 4 gauge wire
• Push button reset can also be used as a kill switch
• Easily mount on firewall or other panel

shipping truck icon Free shipping in USA. Provide zip for delivery date.
3
List price $139.00
-53% $65.99

In stock

Only 3 Left!

• 80 Amp Circuit Breaker
• Dust and splash proof
• Accepts 1/0 or 4 gauge wire
• Push button reset can also be used as a kill switch
• Easily mount on firewall or other panel

Mean Green Alternators MG1584HD

300 Amp High Output Alternator for select 2012-2026 vehicles from Jeep

MG1584HD big
Go to item page Right Arrow Icon of Right Arrow

300 Amp High Output Alternator for select 2012-2026 vehicles from Jeep

• Easy 5-minute installation
• Compatible with select 2012-2026 vehicles from Jeep 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.
$579.99

In stock.

• Easy 5-minute installation
• Compatible with select 2012-2026 vehicles from Jeep 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

JL Audio XD-BTS Battery Terminal

Ultra-Compact Universal Brass Battery Connector Terminal with Marine-Grade Stannum Plating - Positive or Negative

XD-BTS big
Go to item page Right Arrow Icon of Right Arrow

Ultra-Compact Universal Brass Battery Connector Terminal with Marine-Grade Stannum Plating - Positive or Negative

• Ultra-Compact Battery Connector, Positive or Negative
• 10 - 4 Gauge
• High-Temperature Polycarbonate Cover
• Marine-Grade Stannum Plating

shipping truck icon Free shipping in USA. Provide zip for delivery date.
8
$44.99

In stock

Only 3 Left!

• Ultra-Compact Battery Connector, Positive or Negative
• 10 - 4 Gauge
• High-Temperature Polycarbonate Cover
• Marine-Grade Stannum Plating

Mean Green Alternators MG13490

High Output Alternator for select 2004-2008 Land Cruiser

MG13490 big
Go to item page Right Arrow Icon of Right Arrow

High Output Alternator for select 2004-2008 Land Cruiser

• High output alternator
• Compatible with select 2004-2008 Land Cruiser
• 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.
$519.99

In stock.

• High output alternator
• Compatible with select 2004-2008 Land Cruiser
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

Install Bay IBSSR

Panel Mount LED Switch

IBSSR big
Go to item page Right Arrow Icon of Right Arrow

Panel Mount LED Switch

• For Ultra-luxury high-end vehicles
• 12-24V universal usage
• Environmentally friendly and flame retardant materials
• Suitable for refit control of all equipment in the car
• Output short-circuit protection, overload protection
• Suitable for installation and use of all 12/24v battery vehicles

shipping truck icon Free shipping in USA. Provide zip for delivery date.
List price $16.99
-12% $14.99

In stock

• For Ultra-luxury high-end vehicles
• 12-24V universal usage
• Environmentally friendly and flame retardant materials
• Suitable for refit control of all equipment in the car
• Output short-circuit protection, overload protection
• Suitable for installation and use of all 12/24v battery vehicles

Stinger SSVLP0BL

50 ft. 1/0 Gauge Power Wire (Matte Blue)

SSVLP0BL big
Go to item page Right Arrow Icon of Right Arrow

50 ft. 1/0 Gauge Power Wire (Matte Blue)

• 50 feet 1/0 gauge Power Wire
• CCA (Copper-Clad Aluminum) material
• Ultra flexible CCA cable construction
• Color: Matte Blue

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $16.90 in rewards to spend later

List price $269.00
-37% $169.00

In stock

• 50 feet 1/0 gauge Power Wire
• CCA (Copper-Clad Aluminum) material
• Ultra flexible CCA cable construction
• Color: Matte Blue

Limitless Lithium LL-IR500A

500A Battery Isolator and Relay

LL-IR500A big
Go to item page Right Arrow Icon of Right Arrow

500A Battery Isolator and Relay

• 500-amp Relay and Battery Isolator
• High current isolation relay designed for adding a secondary battery
• Prevents primary battery discharge when the vehicle engine is off
• Maximum Contact Rating: 500 amps
• Mechanical Life Cycle: 100000

shipping truck icon Free shipping in USA. Provide zip for delivery date.
$79.00

In stock

Only 1 Left!

• 500-amp Relay and Battery Isolator
• High current isolation relay designed for adding a secondary battery
• Prevents primary battery discharge when the vehicle engine is off
• Maximum Contact Rating: 500 amps
• Mechanical Life Cycle: 100000

Limitless Lithium LL3.5A-MTN-SV

3.5A 12V Portable Automatic Smart Lithium Battery Maintainer

LL3.5A-MTN-SV big
Go to item page Right Arrow Icon of Right Arrow

3.5A 12V Portable Automatic Smart Lithium Battery Maintainer

• Portable Automatic Smart Lithium Standard Voltage Maintainer
• Lithium Lifepo4 Battery Maintainer 3.5 Amp
• Designed for charging 12 volts batteries
• Shuts off when the battery is charged
• Can be used as a "Maintainer" for all lifepo4 batteries

shipping truck icon Free shipping in USA. Provide zip for delivery date.
$89.00

Available

Ships in 10-14 days

• Portable Automatic Smart Lithium Standard Voltage Maintainer
• Lithium Lifepo4 Battery Maintainer 3.5 Amp
• Designed for charging 12 volts batteries
• Shuts off when the battery is charged
• Can be used as a "Maintainer" for all lifepo4 batteries

XS Power Titan8 (PWR-S6-3400)

6000W 10Ah Lithium Titanate Oxide (LTO) Battery

PWR-S6-3400 big
Go to item page Right Arrow Icon of Right Arrow

6000W 10Ah Lithium Titanate Oxide (LTO) Battery

• 14-volt Lithium Battery
• Sealed Lithium Titanate Oxide (LTO) design
• Perfect for up to 6000-watt audio systems

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $70.00 in rewards to spend later

1
$699.99

In stock

Only 2 Left!

Used from: $489.99

• 14-volt Lithium Battery
• Sealed Lithium Titanate Oxide (LTO) design
• Perfect for up to 6000-watt audio systems

T-Spec V8-3DDC

Digital Capacitor 3.0 Farad Distribution Top

V8-3DDC big
Go to item page Right Arrow Icon of Right Arrow

Digital Capacitor 3.0 Farad Distribution Top

• 3.0 Farad Digital Capacitor
• Voltage Meter
• Impact Resistant Polycarbonate Cover
• Simple Mounting System

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $15.90 in rewards to spend later

28
List price $176.99
-10% $158.99

In stock

Only 3 Left!

• 3.0 Farad Digital Capacitor
• Voltage Meter
• Impact Resistant Polycarbonate Cover
• Simple Mounting System

The Install Bay IB500

500 Amp Battery Isolator and Relay

IB500 big
Go to item page Right Arrow Icon of Right Arrow

500 Amp Battery Isolator and Relay

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $13.40 in rewards to spend later

39
List price $148.99
-10% $133.99

In stock

Only 3 Left!

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

Stinger SPT53102

PRO Classic Battery Terminal (1) 1/0ga + (1) 4ga + (2) 8ga Outputs Shoc-Krome (Positive)

SPT53102 big
Go to item page Right Arrow Icon of Right Arrow

PRO Classic Battery Terminal (1) 1/0ga + (1) 4ga + (2) 8ga Outputs Shoc-Krome (Positive)

• Positive Battery Terminal
• Shoc-Krome-plated Output
• Impact resistant covers
• One 4 Gauge Output
• One 1/0 Gauge Output
• Two 8 Gauge Outputs

shipping truck icon Free shipping in USA. Provide zip for delivery date.
4
List price $89.00
-61% $34.99

In stock

• Positive Battery Terminal
• Shoc-Krome-plated Output
• Impact resistant covers
• One 4 Gauge Output
• One 1/0 Gauge Output
• Two 8 Gauge Outputs

NVX XW0WH20

20 ft 1/0-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (White)

XW0WH20 big
Go to item page Right Arrow Icon of Right Arrow

20 ft 1/0-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (White)

• 20 feet 1/0 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: White

shipping truck icon Free shipping in USA. Provide zip for delivery date.
9
List price $199.99
-35% $129.99

In stock

Only 2 Left!

• 20 feet 1/0 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: White

Mean Green Alternators MG8292SHD

375 Amp High Output Alternator for select 2005-2014 vehicles from GMC, Chevrolet, Cadillac

MG8292SHD big
Go to item page Right Arrow Icon of Right Arrow

375 Amp High Output Alternator for select 2005-2014 vehicles from GMC, Chevrolet, Cadillac

• Precision Balanced for Smooth Operation
• Compatible with select 2005-2014 vehicles from GMC, Chevrolet, Cadillac 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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
$879.99

In stock.

• Precision Balanced for Smooth Operation
• Compatible with select 2005-2014 vehicles from GMC, Chevrolet, Cadillac 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

Mean Green Alternators MG1584

200 Amp High Output Alternator for select 2012-2026 vehicles from Jeep

MG1584 big
Go to item page Right Arrow Icon of Right Arrow

200 Amp High Output Alternator for select 2012-2026 vehicles from Jeep

• 200 Amp high output alternator
• Compatible with select 2012-2026 vehicles from Jeep
• 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.
$579.99

In stock.

• 200 Amp high output alternator
• Compatible with select 2012-2026 vehicles from Jeep
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

Items per page: 20

    Clear all

    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.

    why-shoping-with-sonic

    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!
    Why Shop With Us?
    Save up to 10 different vehicles in your garage
    Vehicle
    Store
    Delete

    2004 Lincoln Navigator

    Vehicle
    Store
    Delete

    2007 Harley Davidson FLHTCSE Screamin Eagle Electra Glide

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm
    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue
    Loading...
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon

    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.