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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
Jumper & Booster Cables
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

$54.99

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

$15.99

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

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

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

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

200 Amp Relay Isolator (BIR200)

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

Get 10% off an NVX BIR200 when you Purchase a Battery.

$44.99

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

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

10 Pack of 8 Gauge Waterproof Grommets

• 10 Pack of 8 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

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

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

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

I-BAR Multi Top Post Terminal Adapter Kit

• I-BAR Multi Top Post Terminal Adapter Kit
• Mounts to Any i-BAR Compatible Battery
• Provides Two Sets of Positive and Negative Top-Post
• Copper Coated Battery Post Material

Get 20% Off XS Power 556 Top Terminal Adapter Kit

$22.99

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

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

Solid Brass Short Side Mount Battery Post Adapter

• Short Side Mount Battery Post Adapter
• Solid Brass Coated
• Features a Connection Terminal for your Vehicle's Electrical Components, as well as a Ring Terminal for your Audio Components

$7.95

IN STOCK

Terminal Posts For Kinetik Power Cells

• Power Top Post
• Silver Plated Brass

$9.99

IN STOCK

250 Amp Manual Reset Circuit Breaker

• Manual Reset Circuit Breaker
• Power Rating: 250 Amps
• Red Manual Reset Button
• Compact and Lightweight Design

$13.99

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