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.

Shop by Category

Car Batteries

Capacitors

High Output Alternators

Power & Ground Wire

Big 3 Upgrade Kits

Battery Isolators & Relays

Jump Starters & Battery Chargers

Battery Terminals

Battery Terminal Posts

Voltage Monitoring

Fuses & Holders

Circuit Breakers

Grommets & Firewall Bushings

12 Volt Power Supplies

Power Inverters

Thumbnail icon for Motorcycle Performance Batteries

Motorcycle Batteries

Marine Batteries & Power Cells

Other Battery Accessories

Powersports Batteries

Top sellers

Clear all

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

What are car batteries, power & battery accessories, and why are they essential for my vehicle?

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.

How do I choose the right battery terminal for my car?

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.

Can a battery disconnect switch help prevent battery drain when my vehicle is not in use?

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.

How can a battery charger or maintainer prolong the life of my car battery?

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.

Are there any safety precautions I should take when working with car battery accessories?

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.

Useful Resources:

Car Audio Capacitors vs. Power Cells

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.

Popular Brands in Car Batteries, Power & Battery Accessories

Shop all brands

Hide all brands

Related Categories in Car Batteries, Power & Battery Accessories

Car Stereo Installation & Accessories

Car Amplifier Installation & Accessories

Car Speaker Installation & Accessories

Car Subwoofer Installation & Accessories

Sound Deadening & Damping

Audio Connectors & Terminals

Power & Ground Wire

Tools & Custom Fabrication

Other Installation & Accessories

Apple CarPlay, Android Auto & Phone Connectivity

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

Free perks, no Prime^TM fees

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.

Free install gear for stereos

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.

Authentic & Authorized

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.

View best sellers, deals, and 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!

Learn about All Car Audio

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!

Call or email our experts

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!

Why Shop With Us?

Subscribe

Welcome to the Team!

Car Batteries, Power & Battery Accessories

Shop by Category

Top sellers

NVX XW4BK20

NVX XW4BK20

NVX XW4BL5

NVX XW4BL5

NVX XW4BK5

NVX XW4BK5

NVX XW0BL5

NVX XW0BL5

NVX XW8BL20

NVX XW8BL20

Stinger SSVLP0BL

Stinger SSVLP0BL

NVX XW0GR10

NVX XW0GR10

NVX XW4WH20

NVX XW4WH20

T-Spec V12PW-8500

T-Spec V12PW-8500

NVX XW0BL25

NVX XW0BL25

NVX XW0WH20

NVX XW0WH20

NVX XW0BL10

NVX XW0BL10

NVX XW0BK5

NVX XW0BK5

NVX XW4WH5

NVX XW4WH5

Kicker KMWPR820 (47KMWPR820)

Kicker KMWPR820 (47KMWPR820)

Stinger SSVLP0BK

Stinger SSVLP0BK

Stinger SPW110TB500

Stinger SPW110TB500

Stinger SPW110TR500

Stinger SPW110TR500

Wet Sounds WW-1/0-RED-50

Wet Sounds WW-1/0-RED-50

Stinger SSVLP0R

Stinger SSVLP0R

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

All About

Popular Brands in Car Batteries, Power & Battery Accessories

Related Categories in Car Batteries, Power & Battery Accessories

Are you sure you want to clear your garage?

This category was not designed for products.

Didn't find your car?

Account

Shopping help

Company

Everyday heroes

Brand stores

Useful links