Satisfy your power hungry audio system with high performance batteries and power cells. Find batteries and accessories including terminals, power supplies, isolators and relays.

Car Batteries & Power

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.
Car Batteries & Power Cells
Capacitors
Battery Accessories
Battery Isolators & Relays
Power Inverters
Amplifier Wiring Kits
Big 3 Upgrade Kits
Power & Ground Wire
High Output Alternators
12 Volt Power Supplies
Voltage Monitoring

Top Sellers in Car Batteries & Power

500 Amp Relay Isolator (BIR500)

• 500 Amp Battery Isolator
• 500 Amps at 12V Continuous
• 700 Amps Surge
• Switching Power: 10 - 16 VDC

$49.99

IN STOCK

2 Pack of Satin Chrome-Plated Positive/Negative Battery Terminals with one 0/1 Gauge Input and two 4 Gauge Outputs

2 Pack of Positive or Negative Battery Terminal Clamp • Connects to the positive or negative battery terminal • Splits the connection to 3 outputs • One 1/0 and Two 4 AWG or 8 AWG outputs

$34.98

IN STOCK

80 Amp Relay and Battery Isolator

• 80 Amp Battery Isolator
• 80 Amps at 12V Continuous
• 150 Amps Surge
• Switching Power: 10 - 16 VDC

$9.99

IN STOCK

1/0 AWG Big 3 Upgrade Kit with CCA Wire for Audio Sytems up to 250 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 250A or Less
• Includes All Necessary Wiring
• Ring Terminals are Pre-Connected to Power and Ground Wire
• 30% Copper CCA Wire

$34.99

IN STOCK

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

$65.99

IN STOCK

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

• Positive or Negative Competition Battery Terminal with Two 1/0-8 Gaquge and One 4-8 Gauge Output
• Brass Construction
• (2) 1/0-4 Gauge out
• (1) 4-8 Gauge out
• No Fail Battery Terminal Includes a Negative Post Adapter Collar That Locks Into Place for Tight Grip and Best Connection

$15.95

IN STOCK

200 Amp Relay Isolator (BIR200)

• 200 Amp Battery Isolator
• 200 Amps at 12V Continuous
• 300 Amps Surge
• Switching Power: 10 - 16 VDC

Add an NVX Battery Isolator to your Battery Purchase.

$39.99

IN STOCK

Stinger SVMB Blue LED Voltage Display

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

$19.99

IN STOCK

Only 3 Left!

PRO Series Classic Short GM Battery Post Shoc-Krome (Positive or Negative)

• Provide maximum current transfer
• Chrome finish
• Deep wire recesses
• Oversized set screws

$4.99

IN STOCK

Positive and Negative Battery Terminal Clamp with 4 Outputs (2 1/0 or 4 Gauge and 2 8 Gauge)

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

$19.99

IN STOCK

0 Gauge (1" Mounting Hole) Waterproof Firewall Grommet

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

$2.99

IN STOCK

Platinum Plated Universal +/- 0/4/8/8 Gauge Battery Terminal

• Platinum Plated Universal Battery Terminal
• Designed for high-current applications
• Superior performance for car audio wiring projects

$8.99

IN STOCK

1/0 AWG (1/0 Gauge) Firewall Bushing

• 1/0 Gauge Firewall Bushing
• Water tight seal when power wires pass through metal
• Locks securely as bushing is tightened

$8.99

IN STOCK

12V - 18V DC Car / Marine Voltmeter Voltage Meter Monitoring Gauge

• 12V - 18V Volt DC Car/Marine Voltage Meter Gauge
• LED Color: Red
• Input Voltage: 12 Volt - 24 Volt
• Measure Voltage: 6 - 33 Volts

$9.99

IN STOCK

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

$1.99

IN STOCK

Voltmeter (Voltage Meter) and USB Charger

• Ultra bright LED Voltage Meter Display
• USB Charger
• Charges most smart phones and other accessories
• Plug and Play
• Plugs into 12V power source/cigarette lighter

$14.99

IN STOCK

4 Gauge Positive/Negative Battery Terminal

• 4 Gauge Positive/Negative Battery Terminal
• Solid Brass Construction
• High Tolerance Compact Molded ABS
• Water Resistant

$11.97

IN STOCK

Only 1 Left!

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

$17.99

IN STOCK

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

$9.99

IN STOCK

PRO Series Classic Long GM Battery Post w/ Shoc-Krome Plating (Positive or Negative)

• Provide maximum current transfer
• Chrome finish
• Deep wire recesses
• Oversized set screws

$4.99

IN STOCK

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Car Batteries & Power Information

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.