Car Batteries, Power Cells & Accessories at Sonic Electronix

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About 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.

Popular Brands in Car Batteries & Power


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NVX BIR500

500 Amp Relay Isolator (BIR500)

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500 Amp Relay Isolator (BIR500)

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

27
NVX BIR500

500 Amp Relay Isolator (BIR500)

In stock

$89.99 (27.78% off)
$64.99
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1 Special offer
  • Free NVX Black Reusable Cloth Face Mask with purchase!
NVX BIR200

200 Amp Relay Isolator (BIR200)

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200 Amp Relay Isolator (BIR200)

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

11
NVX BIR200

200 Amp Relay Isolator (BIR200)

In stock

$59.99 (25.00% off)
$44.99
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3 Special offers
  • Add an NVX Battery Isolator to your Battery Purchase.
  • 10% off an NVX Battery Isolator with your Battery Purchase.
  • 50% off an NVX Battery Isolator with your Battery Purchase.
Install Bay Firewall Grommet (IBFG4)

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

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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

6
Install Bay Firewall Grommet (IBFG4)

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

In stock

$2.98 (33.22% off)
$1.99
Belva BBG3KT

1/0 AWG Big 3 Upgrade Kit with CCA Wire for Audio Systems up to 250 Amps

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1/0 AWG Big 3 Upgrade Kit with CCA Wire for Audio Systems 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

32
Belva BBG3KT

1/0 AWG Big 3 Upgrade Kit with CCA Wire for Audio Systems up to 250 Amps

In stock

$79.99 (37.50% off)
$49.99
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1 Special offer
  • Add a pair of Large Gauge Cable Crimper and Save 15%
JL Audio XB-MGLU

Premium Series Bolt-on Master Ground Lug

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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

7
JL Audio XB-MGLU

Premium Series Bolt-on Master Ground Lug

In stock

 
Vip Icon $12.99
The Install Bay IB80

80 Amp Battery Isolator and Relay

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80 Amp Battery Isolator and Relay

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

4
The Install Bay IB80

80 Amp Battery Isolator and Relay

In stock

$29.99 (60.02% off)
$11.99
Install Bay IBFG8

8 Gauge (3/4" Mounting Hole) Waterproof Firewall Grommet

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8 Gauge (3/4" Mounting Hole) Waterproof Firewall Grommet

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

1
Install Bay IBFG8

8 Gauge (3/4" Mounting Hole) Waterproof Firewall Grommet

In stock

$2.98 (33.22% off)
$1.99
Stinger Firewall Grommet (PG12)

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

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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

8
Stinger Firewall Grommet (PG12)

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

In stock

$10.99 (36.40% off)
$6.99
NVX XBTPN04

Positive and Negative Battery Terminal Clamp with 3 Outputs

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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

19
NVX XBTPN04

Positive and Negative Battery Terminal Clamp with 3 Outputs

In stock

$24.99 (40.02% off)
$14.99
NVX XBTPN08

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

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Positive or 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

26
NVX XBTPN08

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

In stock

$24.99 (40.02% off)
$14.99
T-Spec V-BATT-TML

Battery Terminal 4 Position POS/NEG

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Battery Terminal 4 Position POS/NEG

• (2) 1/0 AWG - 10 AWG plus (2) 4 AWG - 10 AWG Out
• Compact design for simpler installation
• Solid brass construction for maximum conductivity
• Nickel finish for durability

T-Spec V-BATT-TML

Battery Terminal 4 Position POS/NEG

In stock

$29.00 (13.79% off)
$25.00
Stinger PG34 (Single)

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

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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

7
Stinger PG34 (Single)

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

In stock

$13.99 (21.44% off)
$10.99
Kinetik HC400-BLU

Kinetik BLU Series 400 Watt 12V High Current AGM Car Audio Power Cell - Battery

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Kinetik BLU Series 400 Watt 12V High Current AGM Car Audio Power Cell - Battery

• 12V High Current Car Audio Power Cell
• Sealed Absorbed Glass Mat (AGM) Design
• Perfect for 400W Car Audio Stereo Systems
• Ultra Low ESR
• Cranking Camps: 400
• 12 Amp Hours
• 100% Sealed and Maintenance Free

3
Kinetik HC400-BLU

Kinetik BLU Series 400 Watt 12V High Current AGM Car Audio Power Cell - Battery

In stock

$79.99 (37.50% off)
$49.99
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1 Special offer
  • 10% off an NVX Battery Isolator with your Battery Purchase.

Item Added to Cart

HC400-BLU small

Kinetik BLU Series 400 Watt 12V High Current AGM Car Audio Power Cell - Battery

$49.99

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Belva BBG3KT

1/0 AWG Big 3 Upgrade Kit with CCA Wire for Audio Sytems up to 250 Amps

$49.99

Add
Steve Meade Designs VM-1 (SMD-VM1)

Steve Meade Designs SMD 12V Analog Voltage Meter

$79.99

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View all available accessories for the Kinetik HC400-BLU.
Stinger SSVLBTP

VL Series Stinger Select Positive Battery Terminal

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VL Series Stinger Select Positive Battery Terminal

• Positive Battery Terminal
• Satin Finish

1
Stinger SSVLBTP

VL Series Stinger Select Positive Battery Terminal

In stock

$19.99 (50.03% off)
$9.99
NVX BIR80

80 Amp Relay and Battery Isolator

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80 Amp Relay and Battery Isolator

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

9
NVX BIR80

80 Amp Relay and Battery Isolator

In stock

$19.99 (25.01% off)
$14.99
Kinetik HC2400-BLU

Kinetik BLU Series 2400 Watt 12V High Current AGM Car Audio Power Cell - Battery

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Kinetik BLU Series 2400 Watt 12V High Current AGM Car Audio Power Cell - Battery

• 12V High Current Car Audio Power Cell
• Sealed Absorbed Glass Mat (AGM) Design
• Perfect for 2400W Car Audio Stereo Systems
• Ultra Low ESR
• Cranking Amps: 1700
• 110 Amp Hours
• 100% Sealed and Maintenance Free

8
Kinetik HC2400-BLU

Kinetik BLU Series 2400 Watt 12V High Current AGM Car Audio Power Cell - Battery

In stock

$379.99 (25.00% off)
$284.99

Item Added to Cart

HC2400-BLU small

Kinetik BLU Series 2400 Watt 12V High Current AGM Car Audio Power Cell - Battery

$284.99

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Belva BBG3KT

1/0 AWG Big 3 Upgrade Kit with CCA Wire for Audio Sytems up to 250 Amps

$49.99

Add
Steve Meade Designs VM-1 (SMD-VM1)

Steve Meade Designs SMD 12V Analog Voltage Meter

$79.99

Add

Don't see the accessory you're looking for?
View all available accessories for the Kinetik HC2400-BLU.
Install Bay IBFG0

0 Gauge (1" Mounting Hole) Waterproof Firewall Grommet

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0 Gauge (1" Mounting Hole) Waterproof Firewall Grommet

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

1
Install Bay IBFG0

0 Gauge (1" Mounting Hole) Waterproof Firewall Grommet

In stock

$11.98 (33.31% off)
$7.99
JL Audio XD-BTS Battery Terminal

Ultra-Compact Universal Brass Battery Connector Terminal with Marine-Grade Stannum Plating - Positive or Negative

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Ultra-Compact Universal Brass Battery Connector Terminal with Marine-Grade Stannum Plating - Positive or Negative

Ultra-Compact Battery Connector, Positive or Negative • 10 - 4 Gauge • High-Temperature Polycarbonate Cover • Marine-Grade Stannum Plating

8
JL Audio XD-BTS Battery Terminal

Ultra-Compact Universal Brass Battery Connector Terminal with Marine-Grade Stannum Plating - Positive or Negative

In stock

 
Vip Icon $37.99
Stinger SGP90300

High Power 300 Amp Circuit Breaker w/ Built-In Distribution

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High Power 300 Amp Circuit Breaker w/ Built-In Distribution

• 300 AMP Circuit Breaker
• Accepts 0 to 4 Gauge

Stinger SGP90300

High Power 300 Amp Circuit Breaker w/ Built-In Distribution

In stock

$81.99 (47.57% off)
$42.99
Stinger SGP90200

200 Amp Circuit Breaker

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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

5
Stinger SGP90200

200 Amp Circuit Breaker

In stock

$74.99 (61.34% off)
$28.99

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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.

Useful Resources:

To find out more about car audio batteries, power cells, isolators, call our friendly support team at 1-877-289-7664.