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Adding a secondary car battery for your audio system? Use battery isolators and Relays to prevent voltage drop and keep your audio system running efficiently. Shop now
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Battery Isolators & Relays

500 Amp Relay Isolator (BIR500)

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

$59.99

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

200 Amp Relay Isolator (BIR200)

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

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$44.99

IN STOCK

500 Amp Battery Isolator and Relay

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

$49.99

IN STOCK

200 Amp Battery Isolator (PAC200)

• 200 Amp Battery Isolator
• 200 Amps at 12V Continuous
• 300 Amps Surge
• Draws Less Than 1 Amp When On
• Switching Power: 10 - 16 VDC

$54.99

IN STOCK

200 amp Battery Isolator and Relay

• 200 amp Battery Isolator and Relay
• Prevents primary battery discharge
• Maximum current transfer
• Extends battery life
• Universal 12V Applications

$64.99

IN STOCK

Only 2 Left!

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

$16.99

IN STOCK

Only 3 Left!

Battery Guard Indicator and Load Shut Down

• Battery Monitor
• Microprocessor That Constantly Monitors The Voltage Available
• Led Changes Color With State Of Battery
• Connects To The Dash Lamps To Dim The LED At Night

$29.95

IN STOCK

80 amp Battery Isolator and Relay

• 80 amp Battery Isolator and Relay
• Prevents Primary Battery Discharge
• Maximum Current Transfer
• Universal 12V Applications
• Extends Battery Life
• Water Resistant Black Phenolic Plastic
• 100,000 Mechanical Cycle Life

$24.99

IN STOCK

Only 3 Left!

240 AMP 3-Post Battery Isolator

• 240 amp Battery Isolator and Relay
• Prevents Primary Battery Discharge
• Maximum Current Transfer
• Extends Battery Life
• Heat Sink To Dissipate Unwanted Heat

$149.99

IN STOCK

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

$44.99

IN STOCK

80 Amp High Current Relay Car Battery Isolator

• High Current Relay Car Battery Isolator
• Reliant & Efficient Way to Add a Secondary Battery to Any System
• Connect Relays to Operate
• Amperage: 80 Amps

$15.99

IN STOCK

Only 1 Left!

200 Amp High Current Relay Car Battery Isolator

• High Current Relay Car Battery Isolator
• Reliant & Efficient Way to Add a Secondary Battery to Any System
• Connect Relays to Operate
• Amperage: 200 Amps

$39.99

IN STOCK

Only 1 Left!

120 Amp 4-Post Battery Isolator

• 120 amp Battery Isolator and Relay
• Prevents Primary Battery Discharge
• Maximum Current Transfer
• Extends Battery Life
• Universal 12V Applications

$79.99

IN STOCK

Battery Isolator / Monitor

• Battery Isolator And Monitor Kit
• BG12 Battery Monitor And PAC-200 Relay Isolates The Primary Battery From The Secondary Battery
• Maintains Charge On Both Batteries
• Requires No Alteration Of The Vehicle's Wiring

$79.95

IN STOCK

Only 3 Left!

500 Amp Relay / Battery Isolator

• 500 Amp Relay / Battery Isolator
• Used To Isolate A Second Battery Electrical Equipment
• Prevents The Equipment From Discharging The Main Battery
• Handles 500 Amps Continuous
• 700 Amp Surges

$89.95

IN STOCK

200 Amp Car Battery Isolator & Relay w/ Control Box

• Car Battery Isolator & Relay w/ Control Box Prevents Loads on Auxiliary Battery from draining the Main Battery Works with all Alternator Types Amperage: 200 Amps

$109.99

IN STOCK