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Battery Accessories

Get all the accessories you need when installing a car battery. We've got terminals, isolators and relays so you can get your system thumpin'!
Battery Isolators & Relays
Battery Terminals
Battery Terminal Posts
Battery Chargers
Battery Wiring & Install Kits
Fuses & Fuse Holders
Circuit Breakers
Distribution Blocks
Grommets & Firewall Bushings

Top 20 in Battery Accessories

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

$15.99

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

$10.99

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

Gold Battery Terminal Accepts Any Size Gauge Cable w/ Ring Terminal & Pos/Neg Adapter

Gold Digital Battery Terminal • Accepts Any Gauge Cable w/ Ring Terminal • Includes Positive & Negative Adapter • Fast and Easy Installation • High Power Connection • Screw Terminals Hold Cables Securely

$8.99

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

Platinum-Plated Short Extender GM Battery Terminal Posts

• Short Extender GM Battery Terminal Posts
• Platinum-Plated for Maximum Conductivity
• Works with Both Positive and Negative Terminals
• Retains Factory Connections
• Unique 2 Piece Design

$2.99

IN STOCK

Gold-Plated Short Extender GM Battery Terminal Posts

• Short Extender GM Battery Terminal Posts
• Gold-Plated for Maximum Conductivity
• Works with Both Positive and Negative Terminals
• Retains Factory Connections
• Unique 2 Piece Design

$4.99

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

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

$5.99

IN STOCK

Only 2 Left!

Platinum Battery Terminal w/ One 0/2 Ga, One 2/4 Ga, and Two 8 Ga Connections

• Platinum-Plated Battery Terminal
• One 0/2 Gauge Output
• One 2/4 Gauge Output
• Two 8 Gauge Inputs
• Fast and Easy Installation
• Includes Positive to Negative Adapter

$10.99

IN STOCK

Only 2 Left!

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

$17.99

IN STOCK

Platinum Digital Battery Terminal w/ One 1/0 AWG, Two 4 AWG & Two Screw Terminals for any AWG Wire

• Platinum Digital Battery Terminal
• Two 4 Gauge Outputs
• One 1/0 Gauge Output
• Two any gauge cable inputs w/ Ring Terminal
• Protective Cover Included
• 3-Digit Digital Voltmeter Display
• Screw Terminals Hold Cables Securely

$13.99

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

$6.95

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

300 Amp Circuit Breaker with Manual Reset & LED Status Indicator

• Manual Reset Circuit Breaker
• Power Rating: 300 Amps
• LED Status Indicator
• Push Button Reset
• Water Resistant Housing
• Integrated Holes for Simple Mounting
• Compact and Lightweight Design

$13.99

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

Positive or Negative Competition Battery Terminal with Two 1/0-8 Gaquge 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

$26.95

IN STOCK

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