Expert Service 1-877-289-7664 [Hours]

Satisfy your power hungry audio system with high performance batteries and power cells. Find batteries and accessories including terminals, power supplies, isolators and relays.
GREAT
DEAL
XS POWER SPECIAL EDITION 600W BatteryOnly $69.99Shop Now » Sealed absorbed glass mat (AGM) design2-Year Warranty

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

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

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

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

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
• Leak-Proof, non-hazardous design
• Amp Hours: 20

Save 10% on a Portable Car Battery Jumpstarter with Purchase

$69.99

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

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

$99.99

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

$19.95

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

10 Pack of 0 Gauge Waterproof Grommets

• 10 Pack of 1/0 Gauge Waterproof Grommets
• Water Tight Seal
• Locks Securely as Bushing is Tightened
• Heavy Duty Construction
• Corrosion Resistant Material
• Provides a Safe Route for Running Power Cables Through the Firewall

$5.99

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

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

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

$13.99

IN STOCK

Only 1 Left!

200 Amp Circuit Breaker

• 200 Amp Circuit Breaker
• Dust and splash proof
• Accepts 1/0 or 4 gauge wire
• Easy reset/disconnect
• Can act as a master disconnect for circuits

$29.90

IN STOCK

Only 2 Left!

12V - 18V DC Car / Marine 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

Pair of Tall Brass 12-Volt Terminal Post M6 Adapters for XS Power D925 & D1200 Power Cells

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

Get 20% Off XS Power 586 M6 Brass Terminal Post Adapter Kit

$10.99

IN STOCK

10 Pack of 4 Gauge Waterproof Grommets

• 10 Pack of 4 Gauge Waterproof Grommets
• Water Tight Seal
• Locks Securely as Bushing is Tightened
• Heavy Duty Construction
• Corrosion Resistant Material
• Provides a Safe Route for Running Power Cables Through the Firewall

$3.99

IN STOCK

Only 2 Left!

XP750 AGM Battery Power Cell + Installation Kit for 1000-1500 Watt Audio Systems

• Includes a Secondary Battery and All Necessary Wiring
• Thick but Flexible CCA Wiring • Complies with American Wire Gauge Standards

40% Off an XS Power 12-Volt Deep Cycle Battery with Purchase

$149.99

IN STOCK

Stinger SVMB Blue LED Voltage Display

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

$26.99

IN STOCK

Load More

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.