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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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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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Price: $99.99

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Stinger SVMB

Stinger SVMB Blue LED Voltage Display

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Stinger SVMB Blue LED Voltage Display

• LED Voltage Gauge
• Accurate Reading
• Easy to Read LED Display
• 3 Wire Installation
• Flush or Mountable

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35
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$23.99

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• LED Voltage Gauge
• Accurate Reading
• Easy to Read LED Display
• 3 Wire Installation
• Flush or Mountable

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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$7.99

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

Stinger SGP90300

High Power 300 Amp Circuit Breaker w/ Built-In Distribution

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High Power 300 Amp Circuit Breaker w/ Built-In Distribution

• 300 AMP Circuit Breaker
• Input Gauge Size: 0 to 4 AWG
• Maximum Output Gauge: 4 AWG

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$37.99

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• 300 AMP Circuit Breaker
• Input Gauge Size: 0 to 4 AWG
• Maximum Output Gauge: 4 AWG

Stinger SGP90200

200 Amp Circuit Breaker

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200 Amp Circuit Breaker

• 200 Amp Circuit Breaker
• Dust and splash proof
• Accepts 1/0 or 4 gauge wire
• Easy reset/disconnect
• Can act as a master disconnect for circuits

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• 200 Amp Circuit Breaker
• Dust and splash proof
• Accepts 1/0 or 4 gauge wire
• Easy reset/disconnect
• Can act as a master disconnect for circuits

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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Price: $65.99

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T-Spec VBTPN

(4) 0 Gauge or (4) 4/8/10 Gauge outputs with bolt-on post for factory harness retention

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(4) 0 Gauge or (4) 4/8/10 Gauge outputs with bolt-on post for factory harness retention

• For positive or negative battery post use
• Add a Post System
• >Solid brass construction

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• For positive or negative battery post use
• Add a Post System
• >Solid brass construction

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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$13.99

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• 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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Price: $13.99

Essential add-ons
80 Amp, 4 Pack of Mini ANL (MANL/AFS) Fuses

Belva BMANL80 set of 4 fuses with an 80A size

$8.99

$3.99

Add to cart
100 Amp, 4 Pack of Mini ANL (MANL/AFS) Fuses

Belva BMANL100 set of 4 fuses with an 100A size

$8.99

$3.99

Add to cart
125 Amp, 4 Pack of Mini ANL (MANL/AFS) Fuses

Belva BMANL125 set of 4 fuses with an 125A size

$8.99

$3.99

Add to cart
Belva BANL100

2 Pack of 100 Amp Nickel-Plated ANL Fuses

$7.99

$3.99

Add to cart
Belva BANL300

2 Pack of 300 Amp Nickel-Plated ANL Fuses

$7.99

$3.99

Add to cart
Belva BANL150

2 Pack of 150 Amp Nickel-Plated ANL Fuses

$7.99

$3.99

Add to cart
Belva BANL200

2 Pack of 200 Amp Nickel-Plated ANL Fuses

$7.99

$3.99

Add to cart
NVX XW0BL5

5 ft of Blue 1/0 Gauge 100% OFC Wire/Cable

$49.99

$29.99

Add to cart
NVX XW0GR5

5 ft of Gray 1/0 Gauge 100% OFC Wire/Cable

$39.99

$29.99

Add to cart

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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$299.95

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

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Price: $299.95

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  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
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Stinger SGP901501

150 AMP Circuit Breaker with Manual Reset

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150 AMP Circuit Breaker with Manual Reset

• Manual Reset Circuit Breaker
• Power Rating: 150 Amps
• Push Button Reset
• Water Resistant Housing
• Integrated Holes for Simple Mounting
• Compact and Lightweight Design

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• Manual Reset Circuit Breaker
• Power Rating: 150 Amps
• Push Button Reset
• Water Resistant Housing
• Integrated Holes for Simple Mounting
• Compact and Lightweight Design

JL Audio XB-MGLU

Premium Series Bolt-on Master Ground Lug

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Premium Series Bolt-on Master Ground Lug

• Master Ground Lug accepts multiple ground wires
• Stainless Steel lug with plated brass contact
• Aggressive star washers provide secure connection

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• Master Ground Lug accepts multiple ground wires
• Stainless Steel lug with plated brass contact
• Aggressive star washers provide secure connection

Stinger SPI300

300 Watt RMS 600 Watt Peak Dual Outlet Power Inverter

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300 Watt RMS 600 Watt Peak Dual Outlet Power Inverter

• 600W MAX
• 300W RMS
• 2 AC Outlets

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Only 1 Left!

• 600W MAX
• 300W RMS
• 2 AC Outlets

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Price: $43.99

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  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
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SHURiKEN SK-SAE35-100

2 Pair of SAE Posts with M6 for Select Shuriken Batteries

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2 Pair of SAE Posts with M6 for Select Shuriken Batteries

• One Pair of Long and One Pair of Short SAE Posts for SK-BT35 thru SKBT100
• Posts with M6 that has 15mm and 27.5mm Posts
• Two Sets

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Only 3 Left!

• One Pair of Long and One Pair of Short SAE Posts for SK-BT35 thru SKBT100
• Posts with M6 that has 15mm and 27.5mm Posts
• Two Sets

Install Bay IBSP4

Four (4) Position Rocker Switch Panel - Pre-wired - Weatherproof

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Four (4) Position Rocker Switch Panel - Pre-wired - Weatherproof

• Pre-wired Rocker Switch Panel with Four (4) Switches
• 12V 20A DC / 24V 10A DC
• Pre-wired for easy install
• Rubber panel plus waterproof rubber seals
• Overload protection design
• Splash water, anti-corrosion, waterproof function
• Environmentally friendly and flame retardant material

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$34.99

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Ships in 10-14 days

• Pre-wired Rocker Switch Panel with Four (4) Switches
• 12V 20A DC / 24V 10A DC
• Pre-wired for easy install
• Rubber panel plus waterproof rubber seals
• Overload protection design
• Splash water, anti-corrosion, waterproof function
• Environmentally friendly and flame retardant material

Stinger SPP1700

1700 Amp SPP Series Dry Cell Battery w/ Protective Steel Case

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1700 Amp SPP Series Dry Cell Battery w/ Protective Steel Case

• 12V SPP Series Dry Cell Battery
• Sealed Absorbed Glass Mat (AGM) Design
• Cranking Amps: 1700
• Peak Discharge: 3300 Amps
• Amp Hours: 105

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$442.99

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• 12V SPP Series Dry Cell Battery
• Sealed Absorbed Glass Mat (AGM) Design
• Cranking Amps: 1700
• Peak Discharge: 3300 Amps
• Amp Hours: 105

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Price: $442.99

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Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
Belva BBG3KT

1/0 AWG Big 3 Upgrade Kit with CCA Wire for Audio Sytems up to 250 Amps

$79.99

$59.99

Add to cart
NVX XBG3PK

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

$114.99

$99.99

Add to cart
Steve Meade Designs VM-1 (SMD-VM1)

Steve Meade Designs SMD 12V Analog Voltage Meter

$99.99

$79.99

Add to cart
Stinger SVMR

Red LED Voltage Display

$51.00

$22.99

Add to cart
Stinger SVMB

Stinger SVMB Blue LED Voltage Display

$51.00

$23.99

Add to cart

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

Stinger SGP35

500 Amp Relay and Isolator

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500 Amp Relay and Isolator

• Prevents Primary Battery Discharge
• Maximum Current Transfer
• Ideal for 2nd Audio Battery Isolation from Vehicle Systems
• 500A Constant/ 900A Peak

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• Prevents Primary Battery Discharge
• Maximum Current Transfer
• Ideal for 2nd Audio Battery Isolation from Vehicle Systems
• 500A Constant/ 900A Peak

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Price: $85.00

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Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
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NVX XFMANL

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

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

• Pack of ANL Fuses
• See-through windows allow for easy inspection
• High-temperature, impact-resistant plastic casings
• Ultimate circuit protection
• High conductivity plating
• Maximum current transfer

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• Pack of ANL Fuses
• See-through windows allow for easy inspection
• High-temperature, impact-resistant plastic casings
• Ultimate circuit protection
• High conductivity plating
• Maximum current transfer

XFMANL small

Item added to your cart.

Price: $16.99

Essential add-ons
80 Amp, 4 Pack of Mini ANL (MANL/AFS) Fuses

Belva BMANL80 set of 4 fuses with an 80A size

$8.99

$3.99

Add to cart
100 Amp, 4 Pack of Mini ANL (MANL/AFS) Fuses

Belva BMANL100 set of 4 fuses with an 100A size

$8.99

$3.99

Add to cart
125 Amp, 4 Pack of Mini ANL (MANL/AFS) Fuses

Belva BMANL125 set of 4 fuses with an 125A size

$8.99

$3.99

Add to cart
Belva BANL100

2 Pack of 100 Amp Nickel-Plated ANL Fuses

$7.99

$3.99

Add to cart
Belva BANL300

2 Pack of 300 Amp Nickel-Plated ANL Fuses

$7.99

$3.99

Add to cart
Belva BANL150

2 Pack of 150 Amp Nickel-Plated ANL Fuses

$7.99

$3.99

Add to cart
Belva BANL200

2 Pack of 200 Amp Nickel-Plated ANL Fuses

$7.99

$3.99

Add to cart
NVX XW0BL5

5 ft of Blue 1/0 Gauge 100% OFC Wire/Cable

$49.99

$29.99

Add to cart
NVX XW0GR5

5 ft of Gray 1/0 Gauge 100% OFC Wire/Cable

$39.99

$29.99

Add to cart

NVX XW1850CL

50 ft of 18 Gauge Clear Remote Wire/Cable

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50 ft of 18 Gauge Clear Remote Wire/Cable

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

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

Stinger SGW991

9 Conductor Speedwire 100ft Roll

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9 Conductor Speedwire 100ft Roll

• 9 Conductor 18 Gauge Speaker Wire
• Nine Cables In One
• Flexible Jacketing • Ideal For 4-Channel Amplifiers
• Easy Installation

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• 9 Conductor 18 Gauge Speaker Wire
• Nine Cables In One
• Flexible Jacketing • Ideal For 4-Channel Amplifiers
• Easy Installation

SGW991 small

Item added to your cart.

Price: $88.00

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Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

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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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