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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 XBTPN04

Positive and Negative Battery Terminal Clamp with 3 Outputs

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Positive and Negative Battery Terminal Clamp with 3 Outputs

• Splits Connection to 3 Outputs
• Brass Construction
• 1/0 or 4-Gauge and 4 or 8-Gauge Outputs

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$16.99

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• Splits Connection to 3 Outputs
• Brass Construction
• 1/0 or 4-Gauge and 4 or 8-Gauge Outputs

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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$13.99

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• 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

SMD Heavy Duty Quad ANL Fuse Block

Heavy Duty Four ANL Fuse Block

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Heavy Duty Four ANL Fuse Block

• For use with aftermarket sound systems or accessories like wenches
• Industrial-strength quadruple fuse holder
• Stainless steel hardware
• Also works in marine applications

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$76.99

In stock

• For use with aftermarket sound systems or accessories like wenches
• Industrial-strength quadruple fuse holder
• Stainless steel hardware
• Also works in marine applications

SMD-QUAD-ANDL small

Item added to your cart.

Price: $76.99

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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 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

T-Spec VMANL1

1/0 Gauge V12 Series MANL Compact Fuse Holder

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1/0 Gauge V12 Series MANL Compact Fuse Holder

• COMPACT MANL FUSE HOLDER

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Ships in 10-14 days

• COMPACT MANL FUSE HOLDER

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Item added to your cart.

Price: $17.00

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
150 Amp, 4 Pack of Mini ANL (MANL/AFS) Fuses

Belva BMANL150 set of 4 fuses with an 150A size

$8.99

$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

Stinger SSCB100

Stinger Select 100Amp Circuit Breaker

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Stinger Select 100Amp Circuit Breaker

• Stinger Select 100Amp Circuit Breaker
• Manual trip reset
• High current protection
•Circuit Breaker Type: 100A
• Primary Color: Black

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$24.99

In stock

• Stinger Select 100Amp Circuit Breaker
• Manual trip reset
• High current protection
•Circuit Breaker Type: 100A
• Primary Color: Black

4 Pack of 80 Amp Nickel-Plated MANL Fuse (Belva BMANL80)

Four fuses per order. High quality 80 Amp MANL Fuses

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Four fuses per order. High quality 80 Amp MANL Fuses

• 80A MANL Fuse (4 Pack)
• Nickel Plated for Better Power Transfer
• Resealable Polybag
• Heavy Duty Construction

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In stock

• 80A MANL Fuse (4 Pack)
• Nickel Plated for Better Power Transfer
• Resealable Polybag
• Heavy Duty Construction

Mean Green Alternators MG8247

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

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

• Easy 5-minute installation
• Compatible with select 1996-2007 vehicles from GMC, Chevrolet, Hummer Vehicles
• Up to 300% more charging power
• Precision balanced for smooth operation
• Superior Design
• Will help make your ride perform at its best

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$519.99

In stock.

• Easy 5-minute installation
• Compatible with select 1996-2007 vehicles from GMC, Chevrolet, Hummer Vehicles
• Up to 300% more charging power
• Precision balanced for smooth operation
• Superior Design
• Will help make your ride perform at its best

MG8247 small

Item added to your cart.

Price: $519.99

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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)
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Essential add-ons
Perfect Match Big 3 Kit

Get the right Big 3 Kit to go with your High Output Alternator

$114.99

$99.99

Add to cart

NVX XW4WH5 5 ft. of Frosted White True Spec 4-Gauge Power/Ground Wire

5 ft. of Frosted White True Spec 4-Gauge EnvyFlex Power/Ground Wire Cable

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5 ft. of Frosted White True Spec 4-Gauge EnvyFlex Power/Ground Wire Cable

• NVX EnvyFlex 4 AWG Power/Ground Cable
• Flexible Insulation and Multi-Strand Construction
• Durable Translucent Jacket
• Silver-Tinned 100% Virgin Copper
• True to Gauge

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$14.99

In stock

• NVX EnvyFlex 4 AWG Power/Ground Cable
• Flexible Insulation and Multi-Strand Construction
• Durable Translucent Jacket
• Silver-Tinned 100% Virgin Copper
• True to Gauge

XW4WH5 small

Item added to your cart.

Price: $14.99

Essential add-ons
NVX XBTU Battery Terminal

Universal Positive/Negative Satin Chrome Battery Terminal with one 0/1 Gauge Input and two 4 Gauge Outputs

$24.99

$16.99

Add to cart
Belva BRT438

4 Gauge Ring Terminals, 3/8" Opening with Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)

$9.99

$2.99

Add to cart
Belva BST408

Pair of 4 Gauge Spade Terminals, #8 Opening with Nickel Plated Brass (1 Black & 1 Red)

$3.99

$1.99

Add to cart

Stinger SCBM150

150 Amp Rating Marine Circuit Breaker

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150 Amp Rating Marine Circuit Breaker

• 150 Amp Rating Marine Circuit Breaker
• Weatherproof Design

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$54.99

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• 150 Amp Rating Marine Circuit Breaker
• Weatherproof Design

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Item added to your cart.

Price: $54.99

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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

Rockford Fosgate RFDGM

GM Battery Post Extender

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GM Battery Post Extender

• HPP plating for superior corrosion resistance
•Custom tooled solid brass
• Allows additional power or ground connections
• Contains One (1) Terminal Bolt

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• HPP plating for superior corrosion resistance
•Custom tooled solid brass
• Allows additional power or ground connections
• Contains One (1) Terminal Bolt

Stinger SPT55310

Side Post Adapter for Select Stinger Batteries

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Side Post Adapter for Select Stinger Batteries

• Side Post Terminal Adapter
• Brass Construction and Finish
• Plastic Insulated Conductors
• Compatible with Most Stinger Batteries

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• Side Post Terminal Adapter
• Brass Construction and Finish
• Plastic Insulated Conductors
• Compatible with Most Stinger Batteries

Stinger SPP2150

2150 Amp SPP Series Dry Cell Battery w/ Protective Steel Case

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2150 Amp SPP Series Dry Cell Battery w/ Protective Steel Case

• 12V SPP Series Dry Cell Battery
• Sealed Absorbed Glass Mat (AGM) Design
• Cranking Amps: 2150
• Peak Discharge: 5000 Amps
• Amp Hours: 105

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Was $899.00 Details
$570.99

In stock

Only 1 Left!

• 12V SPP Series Dry Cell Battery
• Sealed Absorbed Glass Mat (AGM) Design
• Cranking Amps: 2150
• Peak Discharge: 5000 Amps
• Amp Hours: 105

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Item added to your cart.

Price: $570.99

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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

NVX XMFH48

4/8 Gauge AWG Mini-ANL/MANL/AFS In-ine Fuse Holder for Car Audio and Marine Audio (World's Smallest)

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4/8 Gauge AWG Mini-ANL/MANL/AFS In-ine Fuse Holder for Car Audio and Marine Audio (World's Smallest)

• Works with Mini ANL (MANL) or AFS Fuses
• Accepts 4 or 8 Gauge Wire
• All Brass Construction
• Polycarbonate Base and Cover

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In stock

• Works with Mini ANL (MANL) or AFS Fuses
• Accepts 4 or 8 Gauge Wire
• All Brass Construction
• Polycarbonate Base and Cover

XMFH48 small

Item added to your cart.

Price: $10.99

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
150 Amp, 4 Pack of Mini ANL (MANL/AFS) Fuses

Belva BMANL150 set of 4 fuses with an 150A size

$8.99

$3.99

Add to cart
NVX XW4BL5

5 ft of Blue 4 Gauge 100% OFC Wire/Cable

$19.99

$14.99

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 Battery Terminal (SPT53303)

PRO Series Negative Battery Terminal with Dual 5/16" Ring Terminal Outputs

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PRO Series Negative Battery Terminal with Dual 5/16" Ring Terminal Outputs

• PRO Series Negative Battery Terminal
• Able to Accept Dual 5/16" Ring Terminals
• ShocKrome finish
• Deep Wire Recesses
• Oversized Set Screws
• High Power Connection

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$23.95

In stock

• PRO Series Negative Battery Terminal
• Able to Accept Dual 5/16" Ring Terminals
• ShocKrome finish
• Deep Wire Recesses
• Oversized Set Screws
• High Power Connection

Rockford Fosgate RFCB140 Circuit Breaker

140A Platinum Plated Circuit Breaker with 1/0-AWG / 4-AWG Inputs/Outputs

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140A Platinum Plated Circuit Breaker with 1/0-AWG / 4-AWG Inputs/Outputs

• 1/0-AWG / 4-AWG inputs
• Platinum plated
• Low-resistance, high-current ability
• Set screw style connection - no need for ring terminals

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$61.99

In stock

Only 2 Left!

• 1/0-AWG / 4-AWG inputs
• Platinum plated
• Low-resistance, high-current ability
• Set screw style connection - no need for ring terminals

RFCB140 small

Item added to your cart.

Price: $61.99

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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

T-Spec VANL1

V12 Series 1/0- or 4-Gauge ANL fuse holder

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V12 Series 1/0- or 4-Gauge ANL fuse holder

• Accepts 1/0 or 4-Gauge Power Wire
• ANL Fuse Holder
• Anodized Finish

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• Accepts 1/0 or 4-Gauge Power Wire
• ANL Fuse Holder
• Anodized Finish

VANL1 small

Item added to your cart.

Price: $16.99

Essential add-ons
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

The Install Bay IB200

200 Amp Battery Isolator and Relay

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200 Amp Battery Isolator and Relay

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

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Ships in 10-14 days

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

IB200 small

Item added to your cart.

Price: $46.99

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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

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

Four fuses per order. High quality 100 Amp MANL Fuses

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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

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$3.99

In stock

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

Install Bay IBR93

In-Dash Voltage and Amperage Meter w/ LED Display

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In-Dash Voltage and Amperage Meter w/ LED Display

• 12V Voltage Meter
• Monitors Amperage As Well
• Digital Display
• Mounts in Dash

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Only 1 Left!

• 12V Voltage Meter
• Monitors Amperage As Well
• Digital Display
• Mounts in Dash

Items per page: 20

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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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