Battery Isolators and Relays at Sonic Electronix

Battery Isolators & Relays

The perfect accessory for installing multiple car batteries in a vehicle. We offer a variety of different battery isolators designed for different battery amp ratings.
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This is the total number of amps that the battery isolator is designed to continually receive.
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NVX BIR500

500 Amp Relay Isolator (BIR500)

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500 Amp Relay Isolator (BIR500)

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

27
NVX BIR500

500 Amp Relay Isolator (BIR500)

In stock

$89.99 (27.78% off)
$64.99
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1 Special offer
  • Free NVX Black Reusable Cloth Face Mask with purchase!
NVX BIR200

200 Amp Relay Isolator (BIR200)

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200 Amp Relay Isolator (BIR200)

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

11
NVX BIR200

200 Amp Relay Isolator (BIR200)

In stock

$59.99 (25.00% off)
$44.99
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3 Special offers
  • Add an NVX Battery Isolator to your Battery Purchase.
  • 10% off an NVX Battery Isolator with your Battery Purchase.
  • 50% off an NVX Battery Isolator with your Battery Purchase.
The Install Bay IB80

80 Amp Battery Isolator and Relay

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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

4
The Install Bay IB80

80 Amp Battery Isolator and Relay

In stock

$29.99 (60.02% off)
$11.99
NVX XSBI200

Microprocessor-Controlled 200 Amp, Dual Sensing Smart Relay Battery Isolator

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Microprocessor-Controlled 200 Amp, Dual Sensing Smart Relay Battery Isolator

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

4
NVX XSBI200

Microprocessor-Controlled 200 Amp, Dual Sensing Smart Relay Battery Isolator

In stock

Only 1 Left!

$79.99 (18.75% off)
$64.99
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1 Special offer
  • Free NVX Black Reusable Cloth Face Mask with purchase!
NVX BIR80

80 Amp Relay and Battery Isolator

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80 Amp Relay and Battery Isolator

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

9
NVX BIR80

80 Amp Relay and Battery Isolator

In stock

$19.99 (25.01% off)
$14.99
Stinger SGP35

500 Amp Relay and Isolator

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500 Amp Relay and Isolator

• Prevents Primary Battery Discharge
• Maximum Current Transfer
• Ideal for 2nd Audio Battery Isolation from Vehicle Systems
• 500A Constant/ 900A Peak

Stinger SGP35

500 Amp Relay and Isolator

In stock

Only 1 Left!

$175.99 (54.55% off)
$79.99
NVX XSBI80

Microprocessor-Controlled 80 Amp, Dual Sensing Smart Relay Battery Isolator

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Microprocessor-Controlled 80 Amp, Dual Sensing Smart Relay Battery Isolator

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

NVX XSBI80

Microprocessor-Controlled 80 Amp, Dual Sensing Smart Relay Battery Isolator

In stock

$49.99 (20.00% off)
$39.99
Crux REL-SOC

Relay Socket with Leads

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Relay Socket with Leads

• Relay Socket with Leads

Crux REL-SOC

Relay Socket with Leads

In stock

$2.95 (33.90% off)
$1.95
The Install Bay IB500

500 Amp Battery Isolator and Relay

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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

33
The Install Bay IB500

500 Amp Battery Isolator and Relay

In stock

$69.99 (21.43% off)
$54.99
Stinger SGP38

80 amp Battery Isolator and Relay

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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

5
Stinger SGP38

80 amp Battery Isolator and Relay

In stock

Only 3 Left!

$39.99 (62.52% off)
$14.99
Crux REL-30

30 Amps Automotive Relay

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30 Amps Automotive Relay

• Automotive Relay
• 30 amps
• Universal

Crux REL-30

30 Amps Automotive Relay

In stock

Only 1 Left!

$3.95 (50.63% off)
$1.95
NVX BIR500 (Open Box, Good Condition Used)

500 Amp Relay Isolator (BIR500)

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500 Amp Relay Isolator (BIR500)

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

NVX BIR500 (Open Box, Good Condition Used)

500 Amp Relay Isolator (BIR500)

In stock

Only 3 Left!

$89.99 (53.34% off)
$41.99
Stinger S2402

240 AMP 3-Post Battery Isolator

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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

Stinger S2402

240 AMP 3-Post Battery Isolator

Special order

Ships at Later Date

$269.99 (55.19% off)
$120.99
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

13
The Install Bay IB200

200 Amp Battery Isolator and Relay

In stock

$79.99 (46.26% off)
$42.99
Install Bay Battery Isolator Installation Kit (IB1882)

Includes All Necessary Components for a Complete Installation

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Includes All Necessary Components for a Complete Installation

• Complete Battery Isolator Installation Kit
• All Necessary Wiring and Hardware
• 8 AWG Cable
• 50A Light Duty Automotive Reset Breaker

Install Bay Battery Isolator Installation Kit (IB1882)

Includes All Necessary Components for a Complete Installation

In stock

Only 3 Left!

$79.09 (33.33% off)
$52.73
Stinger S12023

120 Amp 4-Post Battery Isolator (Blue)

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120 Amp 4-Post Battery Isolator (Blue)

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

Stinger S12023

120 Amp 4-Post Battery Isolator (Blue)

Special order

Ships at Later Date

$125.99 (50.00% off)
$62.99
Install Bay IBSP702

70 Amp 4-Post Cooper Bussman Battery Isolator

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70 Amp 4-Post Cooper Bussman Battery Isolator

• 70A Four-Post Battery Isolator
• Works for Light Trucks, RVs and Marine Applications
• Solid State Design
• Simple Connection Setup

Install Bay IBSP702

70 Amp 4-Post Cooper Bussman Battery Isolator

In stock

Only 3 Left!

$93.46 (33.33% off)
$62.31
Install Bay IBSP9523

95 Amp 4-Post Cooper Bussman Battery Isolator

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95 Amp 4-Post Cooper Bussman Battery Isolator

• 95A Four-Post Battery Isolator
• Works for Light Trucks, RVs and Marine Applications
• Solid State Design
• Simple Connection Setup

Install Bay IBSP9523

95 Amp 4-Post Cooper Bussman Battery Isolator

In stock

Only 3 Left!

$98.67 (33.33% off)
$65.78
Install Bay IBSP12023

120 Amp 4-Post Cooper Bussman Battery Isolator

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120 Amp 4-Post Cooper Bussman Battery Isolator

• 120A Four-Post Battery Isolator
• Works for Light Trucks, RVs and Marine Applications
• Solid State Design
• Simple Connection Setup

Install Bay IBSP12023

120 Amp 4-Post Cooper Bussman Battery Isolator

In stock

Only 2 Left!

$157.87 (28.57% off)
$112.77
Crux STPWR-01

Retrofit Performance Solution for Vehicles with "Stop-Start" feature

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Retrofit Performance Solution for Vehicles with "Stop-Start" feature

• 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
• Dimensions: 3.5"L x 2.5"W x 7"H

Crux STPWR-01

Retrofit Performance Solution for Vehicles with "Stop-Start" feature

In stock

Only 2 Left!

$199.95 (38.01% off)
$123.95

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