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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 XBTPN08

Positive/Negative Battery Terminal Clamp with Two 1/0 or 4 Gauge and Two 8 Gauge Outputs

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Positive/Negative Battery Terminal Clamp with Two 1/0 or 4 Gauge and Two 8 Gauge Outputs

• Positive or Negative Battery Terminal Clamp
• Connects to the positive or negative battery terminal
• Splits the connection to 4 outputs
• Two 1/0 or 4 Gauge and two 8 Gauge outputs

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33
List price $24.99
-40% $14.99

In stock

• Positive or Negative Battery Terminal Clamp
• Connects to the positive or negative battery terminal
• Splits the connection to 4 outputs
• Two 1/0 or 4 Gauge and two 8 Gauge outputs

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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7
List price $47.99
-19% $38.99

In stock

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

JL Audio XB-BTU Battery Terminal

Universal (Positive or Negative) Battery Connector Terminal for 8 AWG to 1/0 AWG Power Wire Cable

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Universal (Positive or Negative) Battery Connector Terminal for 8 AWG to 1/0 AWG Power Wire Cable

• Works with power wire 8 gauge to 1/0 gauge
• Great for positive or negative connections to your battery
• Forged and machined 360 brass connection
• Elements and set screws have marine-grade, anti-corrosive Stannum plating

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11
$69.99

In stock

• Works with power wire 8 gauge to 1/0 gauge
• Great for positive or negative connections to your battery
• Forged and machined 360 brass connection
• Elements and set screws have marine-grade, anti-corrosive Stannum plating

JL Audio XD-BTS Battery Terminal

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

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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

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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

Stinger SPT53102

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

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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

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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

Stinger SPT55302 (Chrome)

Multi GM Battery Terminal, One 1/0 Gauge, One 4 Gauge and Two 8 Gauge Outputs

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Multi GM Battery Terminal, One 1/0 Gauge, One 4 Gauge and Two 8 Gauge Outputs

• Multi GM Battery Terminal
• One 1/0 Gauge, One 4 Gauge and Two 8 Gauge Outputs
• For Use with GM Side Posts or Stinger Batteries
• High Power Connection
• Works on Both Positive and Negative Terminals

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1
List price $69.00
-49% $34.99

In stock

• Multi GM Battery Terminal
• One 1/0 Gauge, One 4 Gauge and Two 8 Gauge Outputs
• For Use with GM Side Posts or Stinger Batteries
• High Power Connection
• Works on Both Positive and Negative Terminals

NVX XBTU

Positive/Negative Battery Terminal Clamp with One 1/0 or 4 Gauge and Two 4 or 8 Gauge Outputs

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Positive/Negative Battery Terminal Clamp with One 1/0 or 4 Gauge and Two 4 or 8 Gauge Outputs

• Positive or Negative Battery Terminal Clamp
• Connects to the positive or negative battery terminal
• Splits the connection to 3 outputs
• One 1/0 or 4 Gauge and two 4 or 8 Gauge outputs

shipping truck icon Free shipping in USA. Provide zip for delivery date.
19
List price $24.99
-40% $14.99

In stock

• Positive or Negative Battery Terminal Clamp
• Connects to the positive or negative battery terminal
• Splits the connection to 3 outputs
• One 1/0 or 4 Gauge and two 4 or 8 Gauge outputs

T-Spec V-BATT-TML

Battery Terminal 4 Position POS/NEG

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Battery Terminal 4 Position POS/NEG

• (2) 1/0 AWG - 10 AWG plus (2) 4 AWG - 10 AWG Out
• Compact design for simpler installation
• Solid brass construction for maximum conductivity
• Nickel finish for durability

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List price $44.99
-11% $39.99

In stock

• (2) 1/0 AWG - 10 AWG plus (2) 4 AWG - 10 AWG Out
• Compact design for simpler installation
• Solid brass construction for maximum conductivity
• Nickel finish for durability

XS Power 551

I-BAR Side and Top Terminal Adapter Kit

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I-BAR Side and Top Terminal Adapter Kit

• I-BAR Side and Top Terminal Adapter Kit
• Mounts to Any i-BAR Compatible Battery
• Provides GM Style Threaded Side Post Terminals
• Brass Coated Battery Post Material

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8
List price $39.99
-25% $29.99

In stock

• I-BAR Side and Top Terminal Adapter Kit
• Mounts to Any i-BAR Compatible Battery
• Provides GM Style Threaded Side Post Terminals
• Brass Coated Battery Post Material

Stinger SHT303

HPM Series Battery Terminal with Two 1/0 or 4ga Outputs

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HPM Series Battery Terminal with Two 1/0 or 4ga Outputs

• HPM Series Battery Terminal with Two 1/0 or 4ga Outputs
• (2) 1/0 Gauge or (2) 4 Gauge outputs
• Ultimate power protection
• Multiple output design
• Corrosion resistant satin chrome finish

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9
List price $59.00
-44% $32.99

In stock

• HPM Series Battery Terminal with Two 1/0 or 4ga Outputs
• (2) 1/0 Gauge or (2) 4 Gauge outputs
• Ultimate power protection
• Multiple output design
• Corrosion resistant satin chrome finish

Limitless Lithium 6SPOT-LUGAL

6-Spot Universal Aluminum Lug-Style Ring Battery Terminals (Sold as Pair)

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6-Spot Universal Aluminum Lug-Style Ring Battery Terminals (Sold as Pair)

• 6-Spot Universal Lug-Style Ring Battery Terminals
• Designed for large-gauge power and ground connections
• Aluminum-plated build that resists corrosion
• Compatible with car, motorcycle and powersports applications
• Sold as pair

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$35.00

Available

Ships in 10-14 days

• 6-Spot Universal Lug-Style Ring Battery Terminals
• Designed for large-gauge power and ground connections
• Aluminum-plated build that resists corrosion
• Compatible with car, motorcycle and powersports applications
• Sold as pair

Stinger SHT301

HPM Series Digital Battery Terminal with 1/0 or 4ga Outputs and Digital Volt Meter (Positive Only)

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HPM Series Digital Battery Terminal with 1/0 or 4ga Outputs and Digital Volt Meter (Positive Only)

• HPM Series 1/0 or 4ga Outputs with Digital Volt Meter
• Two (2) 1/0 Gauge or (2) 4 Gauge Output
• Monitor system voltage
• Ultimate power connection
• Multiple output design
• Positive terminals only

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3
List price $119.00
-52% $56.99

In stock

• HPM Series 1/0 or 4ga Outputs with Digital Volt Meter
• Two (2) 1/0 Gauge or (2) 4 Gauge Output
• Monitor system voltage
• Ultimate power connection
• Multiple output design
• Positive terminals only

Kicker BT4 (46BT4)

Positive or Negative Brass Battery Terminal with Two 1/0-8 Gauge and One 4-8 Gauge Output

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Positive or Negative Brass Battery Terminal with Two 1/0-8 Gauge and One 4-8 Gauge Output

• BT4 Pos/Neg Battery Terminal. (2) 1/0-8AWG, (1) 4-8AWG
• (2) 1/0-4 Gauge out
• 4-8 Gauge out
• Brass construction

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3
List price $39.99
-43% $22.95

In stock

• BT4 Pos/Neg Battery Terminal. (2) 1/0-8AWG, (1) 4-8AWG
• (2) 1/0-4 Gauge out
• 4-8 Gauge out
• Brass construction

Kicker Warhorse HPBT6 (50HPBT6)

6-Output Warhorse Series High-Power Battery Terminal Block

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6-Output Warhorse Series High-Power Battery Terminal Block

• 6-Position High-Power Battery Terminal
• Positive and negative polarity
• 5/16" stud connectors to accept most ring terminals
• Nickel-plated brass connection posts

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$59.99

In stock

Only 3 Left!

• 6-Position High-Power Battery Terminal
• Positive and negative polarity
• 5/16" stud connectors to accept most ring terminals
• Nickel-plated brass connection posts

Stinger SPT53502

Dual Positive Battery Terminal - 1/0 to 8 Gauge

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Dual Positive Battery Terminal - 1/0 to 8 Gauge

• Stinger Select Series
• Positive Battery Terminals

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List price $79.00
-51% $38.99

In stock

Only 1 Left!

• Stinger Select Series
• Positive Battery Terminals

Kicker Warhorse BT4S (50BT4S)

4-Output Warhorse Series Battery Terminal Block

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4-Output Warhorse Series Battery Terminal Block

• 4-Output Battery Terminal Block
• Positive and negative polarity
• Versa-Gauge connection points with oversized connection screws
• Nickel-plated brass connection posts

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$49.99

Available

Ships in 10-14 days

• 4-Output Battery Terminal Block
• Positive and negative polarity
• Versa-Gauge connection points with oversized connection screws
• Nickel-plated brass connection posts

Stinger SPT55301 (Chrome)

PRO Series Battery Terminal, Works w/ Both Positive and Negative Terminals

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PRO Series Battery Terminal, Works w/ Both Positive and Negative Terminals

• PRO Series Battery Terminal
• Accepts Any 5/16” Ring Terminal
• One 4 Gauge and One 8 Gauge Output
• Works with Both Positive and Negative Terminals
• High power Connection
• Multiple Output Design

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3
List price $49.00
-49% $24.99

In stock

Only 2 Left!

• PRO Series Battery Terminal
• Accepts Any 5/16” Ring Terminal
• One 4 Gauge and One 8 Gauge Output
• Works with Both Positive and Negative Terminals
• High power Connection
• Multiple Output Design

Rockford Fosgate RFDB4 Platinum Battery Terminal

Positive/Negative Battery Terminal with 4 AWG/8 AWG Iinputs/Outputs

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Positive/Negative Battery Terminal with 4 AWG/8 AWG Iinputs/Outputs

• Positive or Negative Battery Terminal
• 8 AWG or 4 AWG Inputs
• Custom Tooled Brass
• HPP Plating
• Strong Plastic Casing

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$29.99

Available

Ships in 10-14 days

• Positive or Negative Battery Terminal
• 8 AWG or 4 AWG Inputs
• Custom Tooled Brass
• HPP Plating
• Strong Plastic Casing

Stinger SPT53501

Positive/Negative Battery Terminal (2 4 Gauge and (1) 8 Gauge Output

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Positive/Negative Battery Terminal (2 4 Gauge and (1) 8 Gauge Output

• Pos/Nev Battery Terminal
• Shoc Krome Plating
•Snap On Hardcover

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List price $49.00
-53% $22.99

In stock

Only 2 Left!

• Pos/Nev Battery Terminal
• Shoc Krome Plating
•Snap On Hardcover

Stinger SPT53103

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

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

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

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List price $69.00
-51% $33.99

In stock

Only 1 Left!

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

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    FAQ Frequently asked questions in Car Batteries, Power & Battery Accessories


    Car batteries, power, and battery accessories are crucial components for any vehicle.

    Car Batteries: These are rechargeable devices that store electrical energy in a chemical form, converting it into electrical power to start your vehicle's engine and power various electrical systems. They are essential because they provide the initial jolt of electricity needed to start the engine and continue to supply power when the alternator isn't running, such as when the engine is off.

    Power Accessories: These include alternators and generators, which recharge the battery and supply power to the vehicle's electrical systems while the engine is running. Voltage regulators ensure a stable supply of electrical power, preventing overcharging. Without these components, your vehicle's battery would eventually run out of power, leaving you stranded.

    Battery Accessories: These encompass components like battery terminals, cables, and connectors. Properly maintained connections are essential for the efficient flow of electrical power within your vehicle. Corroded or loose terminals can lead to poor electrical performance and starting issues.

    In summary, car batteries, power, and battery accessories are essential because they provide the electrical energy needed to start your vehicle, keep it running, and operate various electrical systems, ensuring your vehicle functions properly and reliably.

    Selecting the correct battery terminal involves considering the type of battery and the cable connection you have. First, determine if you have a top-post or side-post battery, as different terminals are designed to fit each type. Next, identify the cable size (usually stated in gauge) to ensure the terminal can accommodate the cable diameter properly. Look for high-quality materials such as copper or brass terminals, as they provide excellent conductivity and resist corrosion. Some terminals also come with additional features, like multiple connection points for additional accessories. It's crucial to choose a terminal that matches your battery and cable specifications to ensure a secure and reliable electrical connection.
    Yes, a battery disconnect switch is an effective way to prevent battery drain when your vehicle is not in use for an extended period. When the switch is in the ""off"" position, it completely cuts off power flow from the battery to the vehicle's electrical system. This prevents any parasitic draws or power-consuming devices from draining the battery during storage or inactivity. Battery disconnect switches are particularly useful for seasonal or seldom-used vehicles, such as boats, RVs, or classic cars. By using a disconnect switch, you can preserve the battery's charge and extend its lifespan, ensuring it remains ready to start your vehicle when needed.
    A battery charger or maintainer helps prolong the life of your car battery by ensuring it remains adequately charged, especially during periods of inactivity. When a vehicle is not driven regularly, the battery can gradually lose charge due to natural self-discharge and parasitic draws. Battery chargers and maintainers are designed to provide a steady and controlled flow of current to the battery, replenishing any lost charge. This prevents the battery from fully discharging, which can lead to sulfation and reduced battery capacity. Additionally, some smart chargers have maintenance modes that automatically adjust the charging rate to keep the battery at an optimal charge level without overcharging it. By keeping the battery in good condition and fully charged, a battery charger or maintainer helps extend its overall lifespan and ensures reliable performance.
    Yes, safety is essential when working with car battery accessories. Before attempting any installation or maintenance, always disconnect the vehicle's negative battery terminal to avoid accidental electrical shocks or short circuits. When working with battery terminals, wear appropriate safety gear, such as gloves and eye protection, to protect against battery acid and corrosion. Ensure all connections are tight and secure to prevent power loss or electrical hazards. When using battery chargers or maintainers, follow the manufacturer's instructions carefully and avoid overcharging the battery. Overcharging can lead to hydrogen gas buildup, which is flammable and poses a safety risk. It's also crucial to work in a well-ventilated area to dissipate any battery gases safely. If you are unsure or uncomfortable with any aspect of the installation or maintenance, it's best to seek professional assistance to ensure proper and safe operation of your car battery accessories.

    All About

    Car Batteries, Power & Battery Accessories
    Car Batteries & Power Cells: For those that are looking to install some moderate to high powered aftermarket audio equipment in their car, it is smart to supplement the vehicles electrical system with a secondary car battery or power cell. It is important to make sure that the new car audio system will not place too much stress on the electrical system. Many times, dimming lights can be a great indicator that the electrical system needs to be upgraded. A great place to start is by replacing the starting battery with a more powerful auto battery. If more power is still needed, then it is recommended that a secondary battery be installed in the car. Here you will find our selection of high performance car batteries, power cells, battery isolators, and more. To find out more about car audio batteries, power cells, isolators, call our friendly support team at 1-877-289-7664.

    Looking to enhance your car's battery performance and optimize your car audio system? Look no further! Sonic Electronix offers a wide range of top-quality car battery accessories that ensure reliable power supply and improved audio performance. Discover the best car battery accessories on this page and take your car audio experience to new heights!

    Car Battery Accessories - Empowering Your Vehicle's Electrical System

    Car battery accessories play a crucial role in supporting your car's electrical system and ensuring a smooth and efficient power flow. These accessories are designed to optimize your car battery's performance and enhance the overall functionality of your vehicle's electrical components.

    One of the primary car battery accessories is the battery terminal. High-quality battery terminals provide a secure connection between your car's battery and the power cables, reducing the risk of power loss and voltage drops. Upgrading to heavy-duty battery terminals improves conductivity, reduces resistance, and maximizes the efficiency of your car's electrical system.

    Another essential car battery accessory is the battery isolator. This device allows you to connect multiple batteries to your car's electrical system while preventing power drain from one battery to another. A battery isolator ensures that each battery serves its intended purpose and remains fully charged, making it ideal for vehicles with multiple batteries, such as RVs and marine applications.

    Expert Assistance - Your Trusted Car Audio Advisors

    At Sonic Electronix, we are dedicated to providing our customers with the best car battery accessories tailored to their unique needs. Our team of car audio experts is readily available to assist you in finding the perfect battery accessories to complement your car audio setup. Whether you need help choosing the right battery terminal or battery isolator, we have the knowledge and expertise to guide you through the selection process.

    Feel free to call us at 1-502-200-8010, and our friendly and experienced staff will be delighted to answer your questions, offer recommendations, and ensure you have a seamless shopping experience.

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    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.