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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

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

BAVTM 12V - 18V DC Car / Marine Voltage Meter Monitoring Gauge + BASQM Front Load Flush Mount Flange + BAMTNT Mounting Nut

• 12V - 18V Volt DC Car/Marine Voltage Meter Gauge
• Front Load Flush Mount Flange
• Mounting Nut

$10.99

IN STOCK

List price $286.94: XS Power XP750 Special Edition 12-Volt Deep Cycle AGM Battery Power Cell + CCA 4 AWG Wiring, Fuse and Fuse Holder

• 12-Volt Deep Cycle AGM Power Cell
• Sealed Absorbed Glass Mat (AGM) Design
• Cranking Amps: 600
• Amp Hours: 20
• Cable Length: 20 Ft.
• Exceeds Industry CEA-2015 Cabling Standards
• True AWG Cable
• ANL/Mini-ANL Fuse Holder
• One 1/0 - 4 Gauge Input
• One 1/0 - 4 Gauge Output

$108.40

IN STOCK

500 Amp Relay Isolator (BIR500)

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

$59.99

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

Pair of 12 Volt Short Brass Battery Terminal Post Adapters M6

• Pair of 12-Volt Short Brass Terminal Post Adapters
• For Vehicles that Use "Short Style" Battery Posts
• High Quality M6 Threading
• Stainless Steel Hex-Head Bolts Included
• Compatible with All i-BAR Rails

Get 20% Off XS Power 580 M6 Brass Terminal Post Adapter Kit

$13.97

IN STOCK

12-Volt Deep Cycle AGM Battery Power Cell with 600 Max Amps for Car Audio Stereo Systems of Up to ~1500W Peak/Max

• 12-Volt Deep Cycle AGM Power Cell
• Sealed Absorbed Glass Mat (AGM) Design
• Cranking Amps: 600
• Amp Hours: 20

Save 10% on a Portable Car Battery Jumpstarter with Purchase

$69.99

IN STOCK

List price $379.94: XS Power Special Edition 12-Volt Deep Cycle AGM Battery Power Cell + NVX 4 AWG OFC Second Battery Install Kit w/ Wire, Fuses & Holder

• 12-Volt Deep Cycle AGM Power Cell
• Sealed Absorbed Glass Mat (AGM) Design
• Cranking Amps: 600
• Amp Hours: 20
• Metallic Powder Blue 4-Gauge Power/Ground Wire Cable
• Silver-Tinned 100% Virgin Copper
• ANL/Mini-ANL Fuse Holder
• One 1/0 - 4 Gauge Input
• One 1/0 - 4 Gauge Output

$139.16

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

Add a pair of Large Gauge Cable Crimper and Save 25%

$39.99

IN STOCK

XP FLEX 1/0 AWG Big Three Electrical System Wiring Upgrade Kit for Audio Sytems up to 250 Amps

• Use to Upgrade Your Factory Power and Ground Wire
• More Effective Than Capacitors When Experiencing Dimming Lights
• Vehicle's Electrical System Will Run More Efficiently
• Use for Systems 250A or Less
• Comes With All Needed Wiring
• Ring Terminals are Pre-Connected to Power and Ground Wire

Add a pair of Large Gauge Cable Crimper and Save 25%

$49.99

IN STOCK

4 Gauge (7/8" Mounting Hole) Firewall Waterproof Grommet

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

$5.99

IN STOCK

12-Volt Deep Cycle Sealed Non-Spillable Lead Acid AGM Battery Power Cell with 3300 Max Amps (BCI Group 34)

• 12-Volt Deep Cycle AGM Power Cell
• Perfect for 2500W - 3500W Car Audio Stereo Systems
• Leak-Proof, Non-Hazardous Design
• Resists Extreme Vibrations
• 100% Sealed and Maintenance Free
• Sealed Absorbed Glass Mat

Save 10% on a Portable Car Battery Jumpstarter with Purchase

$259.99

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

Quick Comfort Connect 12 Volt Plug Adapter

• Quick Comfort Connect Cigarette Lighter Plug Adapter
• For Truly Trouble-Free & Convenient Charging
• Battery is Charged Through the Vehicle’s 12-Volt Socket
• Universal Model that Fits Both 12mm and 21mm Sockets

$7.99

IN STOCK

Only 1 Left!

4 AWG / 4 Gauge Firewall Bushing

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

$6.95

IN STOCK

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

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

$6.99

IN STOCK

Only 2 Left!

Stinger SVMB Blue LED Voltage Display

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

$26.99

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

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

Add a pair of Large Gauge Cable Crimper and Save 25%

$79.99

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.