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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.

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NVX XW0BL10

10 ft. Roll of Metallic Powder Blue EnvyFlex True Spec 1/0-Gauge Power/Ground Wire Cable

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10 ft. Roll of Metallic Powder Blue EnvyFlex True Spec 1/0-Gauge Power/Ground Wire Cable

• Metallic Powder Blue 1/0-Gauge Power/Ground Wire Cable
• Silver-Tinned 100% Virgin Copper
• EnvyFlex Outer Jacket
• Length: 10 Feet

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• Metallic Powder Blue 1/0-Gauge Power/Ground Wire Cable
• Silver-Tinned 100% Virgin Copper
• EnvyFlex Outer Jacket
• Length: 10 Feet

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Price: $49.99

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  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
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Essential add-ons
Stinger HPM Series Battery Terminal

Battery terminal with 2 ouputs (0/1 or 4 AWG)

$62.00

$26.99

Add to cart
Install Bay IBHDCRIMP

Hammer Style Large Cable Crimper for 0-8 Gauge Cables

$39.99

$24.99

Add to cart
Belva BRT038

0/1 Gauge Ring Terminals, 3/8" Opening with Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)

$9.99

$4.99

Add to cart
Belva BRT0516

0/1 Gauge Ring Terminals, 5/16" Opening with Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)

$9.99

$4.99

Add to cart
Stinger Pro Series 1/0 Gauge Ring Terminal (2-Pack)

Gold ring terminal with 1/0 gauge Input to 5/16" ring

$12.00

$12.99

Add to cart
Stinger 1/0 Gauge Ring Terminal (Priced Individually)

Gold set screw ring terminal with 1/0 Gauge input to 5/16" ring. Includes red and black indicator bands.

$15.00

$7.99

Add to cart
Stinger Gauge Reducer

1/0 AWG to 4 AWG Chrome gauge reducer for connecting 1/0 AWG cable to 4 AWG inputs.

$14.00

$7.99

Add to cart

NVX XVRC2

Universal Remote Level Controller/Bass Knob with Digital Voltmeter

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Universal Remote Level Controller/Bass Knob with Digital Voltmeter

• NVX Remote Level Controller with Digital Voltmeter
• Can adjust the amplifier gain even while driving
• In-dash or Under-dash mountable
• Compatible with most head units/amplifiers combinations
• Blue LED display (high voltage / low voltage)

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• NVX Remote Level Controller with Digital Voltmeter
• Can adjust the amplifier gain even while driving
• In-dash or Under-dash mountable
• Compatible with most head units/amplifiers combinations
• Blue LED display (high voltage / low voltage)

NVX XW0BL20

20 ft. of EnvyFlex Metallic Powder Blue True Spec 1/0-Gauge Power/Ground Wire Cable

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20 ft. of EnvyFlex Metallic Powder Blue True Spec 1/0-Gauge Power/Ground Wire Cable

• 20 Ft. 1/0 Gauge EnvyFlex Power or Ground Cable
• Superior Flexibility
• Excellent Insulation and Durability
• Silver-Tinned 100% Virgin Copper
• True to Gauge Measurement

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Price: $99.99

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  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
Install Bay IBHDCRIMP

Hammer Style Large Cable Crimper for 0-8 Gauge Cables

$39.99

$24.99

Add to cart
Belva BRT038

0/1 Gauge Ring Terminals, 3/8" Opening with Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)

$9.99

$4.99

Add to cart
Belva BRT0516

0/1 Gauge Ring Terminals, 5/16" Opening with Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)

$9.99

$4.99

Add to cart

Rockford Fosgate RFCB200

200 Amp Circuit Breaker

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200 Amp Circuit Breaker

• 1/0-AWG / 4-AWG inputs
• Platinum plated
• Low-resistance, high-current ability
• Set screw style connection - no need for ring terminals

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• 1/0-AWG / 4-AWG inputs
• Platinum plated
• Low-resistance, high-current ability
• Set screw style connection - no need for ring terminals

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Price: $61.99

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  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
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Massive Audio BP-PS100 (Blade BP)

Blade BP Series 10-16V / 100A AC/DC Linkable Power Supply

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Blade BP Series 10-16V / 100A AC/DC Linkable Power Supply

• 100 amp AC/DC Linkable Power Supply
• Multi-purpose unit for show room displays, car show events, demos and test benches
• Output current of up to 100 amps
• Adjustable regulated output voltage: 10-16 volts
• Thermal/current overload shut off protection
• Links up to 4 units for up to 400 amps of current

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• 100 amp AC/DC Linkable Power Supply
• Multi-purpose unit for show room displays, car show events, demos and test benches
• Output current of up to 100 amps
• Adjustable regulated output voltage: 10-16 volts
• Thermal/current overload shut off protection
• Links up to 4 units for up to 400 amps of current

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Price: $314.99

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  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
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Install Bay IBSSR

Panel Mount LED Switch

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Panel Mount LED Switch

• For Ultra-luxury high-end vehicles
• 12-24V universal usage
• Environmentally friendly and flame retardant materials
• Suitable for refit control of all equipment in the car
• Output short-circuit protection, overload protection
• Suitable for installation and use of all 12/24v battery vehicles

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$10.99

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• For Ultra-luxury high-end vehicles
• 12-24V universal usage
• Environmentally friendly and flame retardant materials
• Suitable for refit control of all equipment in the car
• Output short-circuit protection, overload protection
• Suitable for installation and use of all 12/24v battery vehicles

Mean Green Alternators MG7771

200 Amp High Output Alternator for select 1994-1995 Ford Mustang

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200 Amp High Output Alternator for select 1994-1995 Ford Mustang

• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

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$519.99

In stock.

• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

MG7771 small

Item added to your cart.

Price: $519.99

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  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
Perfect Match Big 3 Kit

Get the right Big 3 Kit to go with your High Output Alternator

$114.99

$99.99

Add to cart

JL Audio XB-BTU Battery Terminal

Universal (Positive or Negative) Battery Connector Terminal for 8 AWG to 1/0 AWG Power Wire Cable

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Universal (Positive or Negative) Battery Connector Terminal for 8 AWG to 1/0 AWG Power Wire Cable

• Works with power wire 8 gauge to 1/0 gauge
• Great for positive or negative connections to your battery
• Forged and machined 360 brass connection
• Elements and set screws have marine-grade, anti-corrosive Stannum plating

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• Works with power wire 8 gauge to 1/0 gauge
• Great for positive or negative connections to your battery
• Forged and machined 360 brass connection
• Elements and set screws have marine-grade, anti-corrosive Stannum plating

XB-BTU small

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Price: $64.99

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  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
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The Install Bay IB200

200 Amp Battery Isolator and Relay

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200 Amp Battery Isolator and Relay

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

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Ships in 10-14 days

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

IB200 small

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Price: $46.99

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  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

Stinger SGP90250

High Power 250Amp Circuit Breaker w/ Built-In Distribution

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High Power 250Amp Circuit Breaker w/ Built-In Distribution

• Stinger Select Circuit Breaker
• Power Rating: 250 Amps
• Push Button Reset
• Water Resistant Housing
• Integrated Holes for Simple Mounting
• Compact and Lightweight Design

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• Stinger Select Circuit Breaker
• Power Rating: 250 Amps
• Push Button Reset
• Water Resistant Housing
• Integrated Holes for Simple Mounting
• Compact and Lightweight Design

Steve Meade Designs VM-1 (SMD VM1 Voltmeter)

12V Analog Voltage Meter (Volt-Meter)

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12V Analog Voltage Meter (Volt-Meter)

• Input Range: 6v-30v
• 100% Analog Circuitry Allows for Near Instantaneous Voltage Accuracy Vs. a Traditional Digital Voltage Meter
• Response Time from One End of Range to the Other is Less than 200 Milliseconds

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• Input Range: 6v-30v
• 100% Analog Circuitry Allows for Near Instantaneous Voltage Accuracy Vs. a Traditional Digital Voltage Meter
• Response Time from One End of Range to the Other is Less than 200 Milliseconds

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Price: $79.99

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  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
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Mean Green Alternators MG1584

200 Amp High Output Alternator for select 2012-2023 vehicles from Jeep

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200 Amp High Output Alternator for select 2012-2023 vehicles from Jeep

• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

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$579.99

In stock.

• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

MG1584 small

Item added to your cart.

Price: $579.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
Perfect Match Big 3 Kit

Get the right Big 3 Kit to go with your High Output Alternator

$114.99

$99.99

Add to cart

Mean Green Alternators MG1584HD

300 Amp High Output Alternator for select 2012-2023 vehicles from Jeep

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300 Amp High Output Alternator for select 2012-2023 vehicles from Jeep

• Easy 5-minute installation
• Compatible with select 2012-2023 vehicles from Jeep Vehicles
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

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$579.99

In stock.

• Easy 5-minute installation
• Compatible with select 2012-2023 vehicles from Jeep Vehicles
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

MG1584HD small

Item added to your cart.

Price: $579.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
Perfect Match Big 3 Kit

Get the right Big 3 Kit to go with your High Output Alternator

$114.99

$99.99

Add to cart

Stinger SPP1500DC

1500 Amp SPP Series Dry Cell Battery w/ Protective Steel Case

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1500 Amp SPP Series Dry Cell Battery w/ Protective Steel Case

• 12v Dry Cell Valve Regulated Lead Acid Battery (AGM)
• OEM Replacement for Group 34
• Good For Over 400 Full Discharge Cycles
• Internal Resistance: 3.0 mOhms
• CCA: 825A
• Peak Discharge: 3100A
• Dimensions: 6.99"W x 10.85"D x 7.82"H

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Only 3 Left!

• 12v Dry Cell Valve Regulated Lead Acid Battery (AGM)
• OEM Replacement for Group 34
• Good For Over 400 Full Discharge Cycles
• Internal Resistance: 3.0 mOhms
• CCA: 825A
• Peak Discharge: 3100A
• Dimensions: 6.99"W x 10.85"D x 7.82"H

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Price: $439.95

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  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
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Essential add-ons
Belva BBG3KT

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

$79.99

$59.99

Add to cart
NVX XBG3PK

1/0 AWG Big 3 Upgrade Kit with 100% OFC Wire for Audio Sytems up to 350 Amps

$114.99

$99.99

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

Steve Meade Designs SMD 12V Analog Voltage Meter

$99.99

$79.99

Add to cart
Stinger SVMR

Red LED Voltage Display

$51.00

$22.99

Add to cart
Stinger SVMB

Stinger SVMB Blue LED Voltage Display

$51.00

$23.99

Add to cart

Stinger SCBM100

100 Amp Marine Circuit Breaker

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100 Amp Marine Circuit Breaker

• 100 Amp Marine Circuit Breaker
• Weatherproof
• Marine-certified ignition protection
• Ideal for harsh marine environment

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• 100 Amp Marine Circuit Breaker
• Weatherproof
• Marine-certified ignition protection
• Ideal for harsh marine environment

SCBM100 small

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Price: $49.99

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  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

Stinger SPI300

300 Watt RMS 600 Watt Peak Dual Outlet Power Inverter

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300 Watt RMS 600 Watt Peak Dual Outlet Power Inverter

• 600W MAX
• 300W RMS
• 2 AC Outlets

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• 600W MAX
• 300W RMS
• 2 AC Outlets

SPI300 small

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Price: $43.99

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  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
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2 Pack of 200 Amp Nickel-Plated ANL Fuse (Belva BANL200)

Two fuses per order. High quality 200 Amp ANL Fuses

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Two fuses per order. High quality 200 Amp ANL Fuses

• 200A ANL Fuse
• 2 Pack
• Nickel Plated
• Resealable Polybag
• Heavy Duty Construction

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• 200A ANL Fuse
• 2 Pack
• Nickel Plated
• Resealable Polybag
• Heavy Duty Construction

Mean Green Alternators MG8206

All Engines High Output Alternator for select 1996-2002 vehicles from GMC, Chevrolet, Pontiac

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All Engines High Output Alternator for select 1996-2002 vehicles from GMC, Chevrolet, Pontiac

• Easy 5-minute installation
• Compatible with select 1996-2002 vehicles from GMC, Chevrolet, Pontiac Vehicles
• Up to 300% more charging power
• Precision balanced for smooth operation
• Superior Design
• Will help make your ride perform at its best

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• Easy 5-minute installation
• Compatible with select 1996-2002 vehicles from GMC, Chevrolet, Pontiac Vehicles
• Up to 300% more charging power
• Precision balanced for smooth operation
• Superior Design
• Will help make your ride perform at its best

MG8206 small

Item added to your cart.

Price: $519.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
Perfect Match Big 3 Kit

Get the right Big 3 Kit to go with your High Output Alternator

$114.99

$99.99

Add to cart

NVX XBTU

Universal Positive/Negative Satin Chrome Battery Terminal w/ 0/1 Gauge Input & 2 4 Gauge Outputs

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Universal Positive/Negative Satin Chrome Battery Terminal w/ 0/1 Gauge Input & 2 4 Gauge Outputs

• 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 4/8 Gauge outputs

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• 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 4/8 Gauge outputs

NVX XAGU48

4/8 Gauge AWG AGU In-ine Fuse Holder for Car Audio and Marine Audio

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4/8 Gauge AWG AGU In-ine Fuse Holder for Car Audio and Marine Audio

• 4/8 Gauge In-line Fuse Holder
• Satin Chrome Plated For Excellent Power Transfer And Great Design
• Screw Terminals Hold Cables Securely In Place
• Smoked Heat Resistant Housing

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$6.99

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• 4/8 Gauge In-line Fuse Holder
• Satin Chrome Plated For Excellent Power Transfer And Great Design
• Screw Terminals Hold Cables Securely In Place
• Smoked Heat Resistant Housing

XAGU48 small

Item added to your cart.

Price: $6.99

Essential add-ons
Belva BAGU60

4 Pack of 60 Amp Nickel-Plated AGU Fuses

$8.99

$3.99

Add to cart
Belva BAGU80

4 Pack of 80 Amp Nickel-Plated AGU Fuses

$6.99

$3.99

Add to cart
Belva BAGU100

4 Pack of 100 Amp Nickel-Plated AGU Fuses

$6.99

$3.99

Add to cart
NVX XW4BL5

5 ft of Blue 4 Gauge 100% OFC Wire/Cable

$19.99

$14.99

Add to cart

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


    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.

    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.
    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.
    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.
    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. 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.

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