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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

80 Amp Relay and Battery Isolator

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

$9.99

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.

$39.99

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

$46.64

IN STOCK

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

$9.19

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

$37.83

IN STOCK

80 Amp Battery Isolator (PAC80)

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

$15.29

IN STOCK

Only 1 Left!

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

$62.97

IN STOCK

Only 2 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

$124.60

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

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

$69.97

SPECIAL ORDER

Ships at Later Date

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

$82.34

IN STOCK

Stabilizes Voltage to a Constant 12 Volts for Vehicles with "Stop & Restart" Feature (Late Model Vehicles with Fuel-Saving Features)

• Digitally stabilizes voltage to a constant +12V
• For late model vehicles equipped with fuel-saving features
• Engages during the "Stop & Restart" process
• Filters out unwanted fluctuations and voltage interference waves
• Maximum Amperage: 4A

$189.99

AVAILABLE

Ships at Later Date

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

$59.20

IN STOCK

Only 1 Left!

500 Amp Relay Isolator (BIR500)

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

$49.99

OUT OF 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

OUT OF STOCK

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

$29.99

OUT OF 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

OUT OF STOCK