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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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XS Power A3400

2500W 80 Ah Absorbent Glass Mat (AGM) Battery

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2500W 80 Ah Absorbent Glass Mat (AGM) Battery

• 12-volt Absorbent Glass Mat (AGM) Battery
• Sealed Absorbent Glass Mat (AGM) design
• Perfect for 2500W car audio stereo systems
• Compatible with most vehicle applications

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List price $459.99
-9% $419.99

In stock

Only 3 Left!

• 12-volt Absorbent Glass Mat (AGM) Battery
• Sealed Absorbent Glass Mat (AGM) design
• Perfect for 2500W car audio stereo systems
• Compatible with most vehicle applications

Mean Green Alternators MG11378

High Output Alternator for select 1998-2009 Frontier and Xterra and Pathfinder

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High Output Alternator for select 1998-2009 Frontier and Xterra and Pathfinder

• High output alternator
• Compatible with select 1998-2009 Frontier and Xterra and Pathfinder
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

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$519.99

In stock.

• High output alternator
• Compatible with select 1998-2009 Frontier and Xterra and Pathfinder
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

Mean Green Alternators MG8292

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

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

• 200 Amp high output alternator
• Compatible with select 2005-2014 vehicles from GMC, Chevrolet, Cadillac
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

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$519.99

In stock.

• 200 Amp high output alternator
• Compatible with select 2005-2014 vehicles from GMC, Chevrolet, Cadillac
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

Cobra PURE SINE 400W (CPI400PSW)

800W Peak (400W RMS) DC to AC Power Inverter with USB Fast Charging

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800W Peak (400W RMS) DC to AC Power Inverter with USB Fast Charging

• Pure Sine Portable Power Inverter
• 400 watts RMS, 800 watts Peak
• Includes heavy-duty direct-to-battery cable
• Input and output LED indicator
• Rugged industrial design

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$129.95

In stock

Only 1 Left!

• Pure Sine Portable Power Inverter
• 400 watts RMS, 800 watts Peak
• Includes heavy-duty direct-to-battery cable
• Input and output LED indicator
• Rugged industrial design

Shuriken SK-BT60

12V 60Ah Absorbed Glass Mat (AGM) Rechargeable Battery

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12V 60Ah Absorbed Glass Mat (AGM) Rechargeable Battery

• 12-volt Automotive Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat (AGM) design
• Perfect for 1500 watts car audio stereo systems
• Can be mounted in any position
• Can be fully discharged and re-charged

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List price $417.99
-10% $375.99

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Only 3 Left!

Used from: $225.59

XS Power D1600

56 Ah Absorbent Glass Mat (AGM) High-Compression Battery

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56 Ah Absorbent Glass Mat (AGM) High-Compression Battery

• 16-volt Absorbent Glass Mat (AGM) High-Compression Battery
• Sealed Absorbent Glass Mat (AGM) design
• Compatible with most vehicle applications

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List price $469.99
-11% $419.99

In stock

Only 2 Left!

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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List price $126.99
-10% $113.99

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Only 2 Left!

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

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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List price $39.99
-10% $35.99

In stock

Only 2 Left!

Stinger SPD5212

Dual ANL Fuse Holder 0 Ga Input 0 Ga Output

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Dual ANL Fuse Holder 0 Ga Input 0 Ga Output

• Dual ANL Fuse Holder
• O GA In/Out
• Stinger Logo on Case
• Protective Cover Included

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1
List price $79.00
-49% $39.99

In stock

• Dual ANL Fuse Holder
• O GA In/Out
• Stinger Logo on Case
• Protective Cover Included

SHURiKEN SK-SAE20

Pair of SAE Posts with M5

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Pair of SAE Posts with M5

• One Pair of Long and One Pair of Short SAE Posts for SK-BT20*
• Posts with M5 that has 12mm and 24.5mm Posts
• Two Sets

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List price $39.99
-10% $35.99

In stock

Only 2 Left!

• One Pair of Long and One Pair of Short SAE Posts for SK-BT20*
• Posts with M5 that has 12mm and 24.5mm Posts
• Two Sets

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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List price $59.00
-39% $35.99

In stock

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

XS Power Titan8 (PWR-S6-30Q)

6000W 10Ah Lithium Titanate Oxide (LTO) Battery

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6000W 10Ah Lithium Titanate Oxide (LTO) Battery

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

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$799.99

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

Stinger SHD201

HPM Series Inline ANL Fuse Holder with One 1/0 or 4 AWG Input & One 1/0 or 4 AWG Output

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HPM Series Inline ANL Fuse Holder with One 1/0 or 4 AWG Input & One 1/0 or 4 AWG Output

• HPM Series Inline ANL Fuse Holder
• One 1/0 Gauge or 4 Gauge Input
• One 1/0 Gauge or 4 Gauge Output
• Ultimate Power ANL Fuse Protection
• High Temperature Housing
• Water Resistant Design

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3
List price $59.00
-20% $46.99

In stock

Only 1 Left!

• HPM Series Inline ANL Fuse Holder
• One 1/0 Gauge or 4 Gauge Input
• One 1/0 Gauge or 4 Gauge Output
• Ultimate Power ANL Fuse Protection
• High Temperature Housing
• Water Resistant Design

Cobra PRO 1500W (CPI1500W)

3000W Peak (1500W RMS) DC to AC Professional Grade Power Inverter with USB Fast Charging

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3000W Peak (1500W RMS) DC to AC Professional Grade Power Inverter with USB Fast Charging

• Modified Sine Professional Grade Power Inverter
• 1500 watts RMS, 3000 watts Peak
• Includes direct to battery cables
• LED digital display indicator
• Rugged industrial design

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$199.95

In stock

Only 1 Left!

• Modified Sine Professional Grade Power Inverter
• 1500 watts RMS, 3000 watts Peak
• Includes direct to battery cables
• LED digital display indicator
• Rugged industrial design

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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$28.99

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• COMPACT MANL FUSE HOLDER

Stinger SPF5260

60 Amp ANL Fuse

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60 Amp ANL Fuse

• Reliable Circuit Protection
• High Conductivity Shoc-Krome Plating
• 1 Pack

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$9.99

In stock

• Reliable Circuit Protection
• High Conductivity Shoc-Krome Plating
• 1 Pack

Shuriken LI-CHARGER-3A

3-Amp Lithium-Ion Battery Charger

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3-Amp Lithium-Ion Battery Charger

• 3-Amp Lithium-Ion Battery Charger
• Reliable and vibration-resistant design
• Divided into independent cells that ensure safety and prevents shorting out
• Built-in Battery Management System (BMS)
• Power Rating: 14.6V @ 3A

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List price $82.99
-11% $73.99

In stock

Only 2 Left!

• 3-Amp Lithium-Ion Battery Charger
• Reliable and vibration-resistant design
• Divided into independent cells that ensure safety and prevents shorting out
• Built-in Battery Management System (BMS)
• Power Rating: 14.6V @ 3A

Install Bay 12 Gauge Primary Wire (IBR38)

Red 20' Power Wire & Black 10' Ground Wire

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Red 20' Power Wire & Black 10' Ground Wire

• 12 Gauge Primary Wire
• 1 Bag of 2 pieces
• Red 20' Power Wire
• Black 10' Ground Wire

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List price $28.99
-10% $25.99

In stock

Only 2 Left!

• 12 Gauge Primary Wire
• 1 Bag of 2 pieces
• Red 20' Power Wire
• Black 10' Ground Wire

T-Spec VGMS

GM Standard Battery Terminal Post For GM Side Post Style Batteries

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GM Standard Battery Terminal Post For GM Side Post Style Batteries

• GM Standard Battery Terminal Post For GM Side Post Style Batteries
• Solid Brass Construction
• High Tolerance Compact Molded ABS
• Water Resistant

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List price $14.99
-13% $12.99

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Only 3 Left!

• GM Standard Battery Terminal Post For GM Side Post Style Batteries
• Solid Brass Construction
• High Tolerance Compact Molded ABS
• Water Resistant

Shuriken SK-BT35

12V 35Ah Rechargeable Absorbed Glass Mat (AGM) Battery

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12V 35Ah Rechargeable Absorbed Glass Mat (AGM) Battery

• 12-volt Automotive Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat (AGM) design
• Perfect for 800 watts car audio stereo systems
• Can be mounted in any position
• Can be fully discharged and re-charged

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List price $242.99
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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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    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.