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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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Install Bay Firewall Grommet (IBFG4)

4 Gauge (7/8" Mounting Hole) Waterproof Firewall Grommet

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4 Gauge (7/8" Mounting Hole) Waterproof Firewall Grommet

• 4 Gauge Firewall Grommet
• IP68 Waterproof Rating
• Protects Cables When Installing Through a FIrewall
• Sold Individually

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Fast 2-day shipping to OH. Get it Thu, Nov. 20

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10
$2.99

In stock

• 4 Gauge Firewall Grommet
• IP68 Waterproof Rating
• Protects Cables When Installing Through a FIrewall
• Sold Individually

Install Bay IBFG0

0 Gauge (1" Mounting Hole) Waterproof Firewall Grommet

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0 Gauge (1" Mounting Hole) Waterproof Firewall Grommet

• 0 Gauge Firewall Grommet
• IP68 Waterproof Rating
• Protects Cables When Installing Through a FIrewall
• Sold Individually

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Fast 2-day shipping to OH. Get it Thu, Nov. 20

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7
Was $11.98 Details
$8.99

In stock

• 0 Gauge Firewall Grommet
• IP68 Waterproof Rating
• Protects Cables When Installing Through a FIrewall
• Sold Individually

NVX XBG3PK Big 3 Kit with True 0 Gauge 100% Oxygen-Free Copper

1/0 AWG Big 3 Upgrade Kit with 100% OFC Wire for Audio Sytems up to 350 Amps

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1/0 AWG Big 3 Upgrade Kit with 100% OFC Wire for Audio Sytems up to 350 Amps

• Upgrade Your Factory Power and Ground Wire
• Perfect for Dealing with Dimming Lights
• Improve the Efficiency of Your Vehicle's Electrical System
• Use for Systems 350A or Less
• Includes All Necessary Wiring
• Ring Terminals are Pre-Connected to Power and Ground Wire

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FREE 1-day shipping to OH. Get it Wed, Nov. 19
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Was $114.99 Details
$99.99

In stock

Used from: $69.99

• Upgrade Your Factory Power and Ground Wire
• Perfect for Dealing with Dimming Lights
• Improve the Efficiency of Your Vehicle's Electrical System
• Use for Systems 350A or Less
• Includes All Necessary Wiring
• Ring Terminals are Pre-Connected to Power and Ground Wire

Install Bay IBPS75

75 AMP 12V Power Supply

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75 AMP 12V Power Supply

• 75 Amp Power Supply
• Built-In 4 Stage Smart Charger
• Overtemp Protection
• Deck Mounted Converter
• Max Output: 1065 Watts

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FREE 1-day shipping to OH. Get it Wed, Nov. 19
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Was $704.99 Details
$633.99

In stock

Only 2 Left!

• 75 Amp Power Supply
• Built-In 4 Stage Smart Charger
• Overtemp Protection
• Deck Mounted Converter
• Max Output: 1065 Watts

NVX XMANL04

1/0 or 4 Gauge AWG ANL/Mini-ANL In-ine Fuse Holder for Car Audio and Marine Audio

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1/0 or 4 Gauge AWG ANL/Mini-ANL In-ine Fuse Holder for Car Audio and Marine Audio

• ANL/Mini-ANL Fuse Holder
• One 1/0 - 4 Gauge Input
• One 1/0 - 4 Gauge Output
• Solid Brass And Satin Chrome Plated
• High-Temperature Polycarbonate Base And Cover

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Fast 2-day shipping to OH. Get it Thu, Nov. 20

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50
Was $24.99 Details
$12.99

In stock

Used from: $15.99

• ANL/Mini-ANL Fuse Holder
• One 1/0 - 4 Gauge Input
• One 1/0 - 4 Gauge Output
• Solid Brass And Satin Chrome Plated
• High-Temperature Polycarbonate Base And Cover

Install Bay IBPS55

55 AMP 12V Power Supply

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55 AMP 12V Power Supply

• 55 Amp Power Supply
• Built-In 4 Stage Smart Charger
• Overtemp Protection
• Deck Mounted Converter
• Max Output: 780 Watts

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FREE 1-day shipping to OH. Get it Wed, Nov. 19
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Was $525.99 Details
$472.99

In stock

Only 3 Left!

• 55 Amp Power Supply
• Built-In 4 Stage Smart Charger
• Overtemp Protection
• Deck Mounted Converter
• Max Output: 780 Watts

NVX XW1850BL

50 ft of 18 Gauge Blue Remote Wire/Cable

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50 ft of 18 Gauge Blue Remote Wire/Cable

• Single Conductor Primary Wire
• Length: 50ft
• Flexible Jacket
• Color: Blue

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Fast 2-day shipping to OH. Get it Thu, Nov. 20

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17
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$9.99

In stock

Like New from: $8.49

• Single Conductor Primary Wire
• Length: 50ft
• Flexible Jacket
• Color: Blue

Install Bay IBSSWB

Panel Switch - 6-Pin Winch

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Panel Switch - 6-Pin Winch

• 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

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Fast 3-day shipping to OH. Delivers Dec. 1 - Dec. 8

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$13.99

Available

Ships in 10-14 days

• 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

NVX XBG3PK Big 3 Kit with True 0 Gauge 100% Oxygen-Free Copper (Open Box, Great)

1/0 AWG Big 3 Upgrade Kit with 100% OFC Wire for Audio Sytems up to 350 Amps

XBG3PK big
Go to item page Right Arrow Icon of Right Arrow

1/0 AWG Big 3 Upgrade Kit with 100% OFC Wire for Audio Sytems up to 350 Amps

• Upgrade Your Factory Power and Ground Wire
• Perfect for Dealing with Dimming Lights
• Improve the Efficiency of Your Vehicle's Electrical System
• Use for Systems 350A or Less
• Includes All Necessary Wiring
• Ring Terminals are Pre-Connected to Power and Ground Wire

shipping truck icon
FREE 1-day shipping to OH. Get it Wed, Nov. 19

empty

Was $114.99 Details
$69.99

In stock

Only 3 Left!

• Upgrade Your Factory Power and Ground Wire
• Perfect for Dealing with Dimming Lights
• Improve the Efficiency of Your Vehicle's Electrical System
• Use for Systems 350A or Less
• Includes All Necessary Wiring
• Ring Terminals are Pre-Connected to Power and Ground Wire

The Install Bay IB500

500 Amp Battery Isolator and Relay

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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

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FREE 1-day shipping to OH. Get it Wed, Nov. 19

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39
Was $148.99 Details
$133.99

In stock

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

NVX BIR500

500 Amp Relay Isolator (BIR500)

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500 Amp Relay Isolator (BIR500)

• 500 Amp Battery Isolator
• 500 Amps at 12V Continuous
• 700 Amps Surge
• Switching Power: 10 - 16 VDC

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FREE 1-day shipping to OH. Get it Wed, Nov. 19
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36
Was $89.99 Details
$84.99

In stock

Used from: $47.99

• 500 Amp Battery Isolator
• 500 Amps at 12V Continuous
• 700 Amps Surge
• Switching Power: 10 - 16 VDC

The Install Bay MANL40

40 Amp Mini ANL Fuse (2 Pack)

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40 Amp Mini ANL Fuse (2 Pack)

• Mini ANL Fuse
• 40 Amp Rating
• Designed for Optimal Signal Transfer
• Package Includes 2 Fuses

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Fast 2-day shipping to OH. Get it Thu, Nov. 20

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5
Was $4.99 Details
$3.99

In stock

• Mini ANL Fuse
• 40 Amp Rating
• Designed for Optimal Signal Transfer
• Package Includes 2 Fuses

Install Bay IBR95

12V Digital Voltage Meter

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12V Digital Voltage Meter

• 12V Voltage Meter
• Digital Display
• Mounts in Dash

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FREE 2-day shipping to OH. Get it Thu, Nov. 20

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Was $64.99 Details
$57.99

In stock

• 12V Voltage Meter
• Digital Display
• Mounts in Dash

NVX XSBI200

Microprocessor-Controlled 200 Amp, Dual Sensing Smart Relay Battery Isolator

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Microprocessor-Controlled 200 Amp, Dual Sensing Smart Relay Battery Isolator

• 200 Amp Battery Isolator
• 200 Amps at 12V Continuous
• 300 Amps Surge
• Switching Power: 10 - 16 VDC

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FREE 1-day shipping to OH. Get it Wed, Nov. 19
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5
Was $79.99 Details
$49.99

In stock

Used from: $29.99

• 200 Amp Battery Isolator
• 200 Amps at 12V Continuous
• 300 Amps Surge
• Switching Power: 10 - 16 VDC

NVX XW0BL20

20 ft. of EnvyFlex Metallic Powder Blue True Spec 1/0-Gauge Power/Ground Wire Cable

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20 ft. of EnvyFlex Metallic Powder Blue True Spec 1/0-Gauge Power/Ground Wire Cable

• 20 Ft. 1/0 Gauge EnvyFlex Power or Ground Cable
• Superior Flexibility
• Excellent Insulation and Durability
• Silver-Tinned 100% Virgin Copper
• True to Gauge Measurement

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FREE 1-day shipping to OH. Get it Wed, Nov. 19
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33
Was $109.99 Details
$99.99

In stock

Used from: $99.99

NVX XCAP10H (TRUE 10 FARAD CAPACITANCE) (Open Box, Great)

True 10 Farad Stiffening Hybrid Capacitor with Digital Display and Built-in Distribution Block

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True 10 Farad Stiffening Hybrid Capacitor with Digital Display and Built-in Distribution Block

• For High-Powered systems
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

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FREE 1-day shipping to OH. Get it Wed, Nov. 19

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Was $371.99 Details
$209.99

In stock

Only 2 Left!

• For High-Powered systems
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

Install Bay IBR81

Waterproof ATC or Mini Anl Dual Fuse Holder

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Waterproof ATC or Mini Anl Dual Fuse Holder

• Waterproof Connector
• For Marine, Motorsports, ATV and Motorcycle Applications
• Brass Connector for Maximum Power Transfer
• Stainless Steel Wrench Included

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Fast 2-day shipping to OH. Get it Thu, Nov. 20

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Was $35.99 Details
$31.99

In stock

• Waterproof Connector
• For Marine, Motorsports, ATV and Motorcycle Applications
• Brass Connector for Maximum Power Transfer
• Stainless Steel Wrench Included

Install Bay IBSSR

Panel Mount LED Switch

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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
Fast 2-day shipping to OH. Get it Thu, Nov. 20

empty

Was $16.99 Details
$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

Install Bay EL-CB100MR

100 AMP Circuit Breaker with Manual Reset and Red LED Indicator

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100 AMP Circuit Breaker with Manual Reset and Red LED Indicator

• Red LED lights when tripped
• Flush mount with push-to-trip button, 42 Vdc
• Waterproof, sealed housing

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FREE 3-day shipping to OH. Delivers Dec. 1 - Dec. 8

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Was $67.99 Details
$60.99

Available

Ships in 10-14 days

• Red LED lights when tripped
• Flush mount with push-to-trip button, 42 Vdc
• Waterproof, sealed housing

Install Bay IBHPLUG34

3/4in Hole Plug Flush Black 1in Head Diameter - 100PK

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3/4in Hole Plug Flush Black 1in Head Diameter - 100PK

• 3/4 Inch Hole Plug
• 100 Pack
• 1" Head Diameter

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Fast 3-day shipping to OH. Delivers Dec. 1 - Dec. 8

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Was $13.99 Details
$11.99

Available

Ships in 10-14 days

• 3/4 Inch Hole Plug
• 100 Pack
• 1" Head Diameter

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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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    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.
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    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!
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