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  1. Home
  2. Discontinued Car Audio & Electronics
  3. Discontinued Car Audio Installation & Accessories
  4. Discontinued Car Batteries, Power & Battery Accessories
  5. Discontinued Battery Isolators & Relays

Discontinued 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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You are currently viewing discontinued products.

Tsunami PP2001-PT

High Amperage Battery Power Distribution System For Optima Batteries

PP2001-PT big DISCONTINUED
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Tsunami PP2001-PT

High Amperage Battery Power Distribution System For Optima Batteries

High Amperage Battery Power Distribution System For Optima Batteries • Solid Brass • Nickel-Plated • Digital Blue Voltage Display • 1/0 & 4 Gauge Positive Output • 4 Position Negative Outputs • LOK-NUT Compression

4

High Amperage Battery Power Distribution System For Optima Batteries • Solid Brass • Nickel-Plated • Digital Blue Voltage Display • 1/0 & 4 Gauge Positive Output • 4 Position Negative Outputs • LOK-NUT Compression

Stinger S2402 , Open Box (Very Good, Used)

240 AMP 3-Post Battery Isolator

S2402 big DISCONTINUED
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Stinger S2402 , Open Box (Very Good, Used)

240 AMP 3-Post Battery Isolator

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

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

NVX BIR500 (Open Box, Complete)

500 Amp Relay Isolator (BIR500)

BIR500 big DISCONTINUED
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NVX BIR500 (Open Box, Complete)

500 Amp Relay Isolator (BIR500)

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

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

Install Bay Battery Isolator Installation Kit (IB1882)

Includes All Necessary Components for a Complete Installation

IB1882 big DISCONTINUED
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Install Bay Battery Isolator Installation Kit (IB1882)

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

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

Stinger S2402 Open Box

240 AMP 3-Post Battery Isolator

S2402 big DISCONTINUED
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Stinger S2402 Open Box

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

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

NVX BIR200 LIKE NEW DAMAGED PACKAGE

200 Amp Relay Isolator (BIR200)

BIR200 big DISCONTINUED
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NVX BIR200 LIKE NEW DAMAGED PACKAGE

200 Amp Relay Isolator (BIR200)

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

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

NVX BIR500-OPEN BOX

500 Amp Relay Isolator (BIR500)

BIR500 big DISCONTINUED
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NVX BIR500-OPEN BOX

500 Amp Relay Isolator (BIR500)

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

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

Stinger S2402 R/B

240 AMP 3-Post Battery Isolator

S2402 big DISCONTINUED
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Stinger S2402 R/B

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

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

Stinger S12023 Open Box

120 Amp 4-Post Battery Isolator

S12023 big DISCONTINUED
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Stinger S12023 Open Box

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

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

Install Bay IBSP702

70 Amp 4-Post Cooper Bussman Battery Isolator

IBSP702 big DISCONTINUED
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Install Bay IBSP702

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

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

NVX XSBI80 (Like New (Open Box))

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

XSBI80 big DISCONTINUED
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NVX XSBI80 (Like New (Open Box))

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

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

NVX XSBI80 (Open Box, Good)

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

XSBI80 big DISCONTINUED
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NVX XSBI80 (Open Box, Good)

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

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

Install Bay IBSP12023

120 Amp 4-Post Cooper Bussman Battery Isolator

IBSP12023 big DISCONTINUED
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Install Bay IBSP12023

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

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

Install Bay IBSP13023

130 Amp 4-Post Cooper Bussman Battery Isolator

IBSP13023 big DISCONTINUED
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Install Bay IBSP13023

130 Amp 4-Post Cooper Bussman Battery Isolator

• 130A Four-Post Battery Isolator
• Works for Light Trucks, RVs and Marine Applications
• Solid State Design
• Simple Connection Setup

• 130A Four-Post Battery Isolator
• Works for Light Trucks, RVs and Marine Applications
• Solid State Design
• Simple Connection Setup

Install Bay IB144CD

GM Delco CS Series Alternator Connection Kit

IB144CD big DISCONTINUED
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Install Bay IB144CD

GM Delco CS Series Alternator Connection Kit

• Delco CS Series Alternator Kit
• Ensures Safe Installation of Multi-Battery Systems
• Includes Circuit Breaker
• Wire and Hardware Included

• Delco CS Series Alternator Kit
• Ensures Safe Installation of Multi-Battery Systems
• Includes Circuit Breaker
• Wire and Hardware Included

NVX XSBI200 (Like New (Open Box))

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

XSBI200 big DISCONTINUED
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NVX XSBI200 (Like New (Open Box))

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

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

NVX BIR80 (Open Box, Great)

80 Amp Relay and Battery Isolator

BIR80 big DISCONTINUED
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NVX BIR80 (Open Box, Great)

80 Amp Relay and Battery Isolator

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

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

NVX BIR500 (Like New (Open Box))

500 Amp Relay Isolator (BIR500)

BIR500 big DISCONTINUED
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NVX BIR500 (Like New (Open Box))

500 Amp Relay Isolator (BIR500)

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

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

NVX XSBI500 (Like New (Open Box))

Microprocessor-Controlled 500 Amp, Dual Sensing Smart Relay Battery Isolator

XSBI500 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

NVX XSBI500 (Like New (Open Box))

Microprocessor-Controlled 500 Amp, Dual Sensing Smart Relay Battery Isolator

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

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

NVX BIR80 (Open Box, Good)

80 Amp Relay and Battery Isolator

BIR80 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

NVX BIR80 (Open Box, Good)

80 Amp Relay and Battery Isolator

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

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

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    FAQ Frequently asked questions in Discontinued Battery Isolators & Relays

    Battery Isolators & Relays Frequently Asked Questions (FAQ)

    A battery isolator in car audio is a device that allows multiple batteries to be connected in a vehicle, ensuring that the starting battery remains charged while the secondary battery supplies power to the audio system. Here's how it works and its benefits:

    1. Separation of Batteries: A battery isolator separates the vehicle's starting battery from the secondary or auxiliary batteries. This ensures that the power used by the audio system doesn't drain the starting battery.

    2. Simultaneous Charging: When the vehicle's engine is running, the alternator charges the starting battery. Once the starting battery is fully charged, the isolator directs the charging current to the secondary batteries. This ensures all batteries are charged efficiently without overcharging.

    3. Prevents Drain on Starting Battery: High-powered audio systems can draw significant power, especially with amplifiers and subwoofers. By having a separate battery for the audio system, you prevent the main starting battery from being drained. This ensures that the vehicle can always start even after prolonged use of the audio system when the engine is off.

    4. Extended Battery Life: By ensuring that no single battery is overly discharged, battery isolators can help extend the lifespan of the batteries.

    5. Enhanced Audio Performance: Some car audio enthusiasts believe that by having a dedicated battery for the audio system, it can deliver cleaner power to the audio components, potentially improving sound quality.

    6. Safety: In the event of a short circuit or an issue with the audio system, the isolator ensures that the starting battery remains unaffected, allowing the vehicle to be started and moved if necessary.

    A battery isolator works as a one-way valve for electrical current, allowing power to flow from the vehicle's charging system to the auxiliary batteries but preventing it from flowing back to the primary battery. When the engine is running and the alternator is producing electricity, the battery isolator detects the voltage increase and engages the connection between the primary and auxiliary batteries, allowing them to charge simultaneously. Once the engine is turned off, the battery isolator disengages the connection between the batteries, ensuring that the primary battery remains isolated and retains its charge. This way, even if your auxiliary accessories draw power from the second battery, your vehicle's main battery remains fully charged and ready to start the engine when needed.
    While some experienced DIY enthusiasts may be able to install a battery isolator themselves, it's recommended to seek professional help, especially if you're not familiar with automotive electrical systems. Proper installation is crucial for the safe and efficient operation of your battery isolator and electrical components. Professional installation ensures that the battery isolator is correctly connected to the charging system, batteries, and accessories, preventing any electrical issues or safety hazards. Additionally, a professional installer can provide guidance on selecting the right type and capacity of battery isolator for your specific vehicle and power requirements. Remember that working with electrical systems can be dangerous if not done correctly. Professional installation gives you peace of mind that your battery isolator is installed properly, providing optimal performance and protection for your vehicle's electrical system.
    While both battery isolators and voltage-sensitive relays (VSRs) serve a similar purpose of charging multiple batteries from a single charging source, they differ in their operation and design. A battery isolator is a diode-based device that allows power to flow in one direction only. It maintains electrical isolation between the primary and auxiliary batteries, ensuring that they do not discharge power between each other. A diode-based isolator typically has a fixed voltage drop, meaning that a small amount of voltage is lost during the charging process. On the other hand, a voltage-sensitive relay (VSR) is an electronically controlled device that engages or disengages the connection between batteries based on their voltage levels. When the vehicle's charging system produces a sufficient voltage, the VSR connects the batteries, allowing them to charge together. When the engine is turned off, and the voltage drops, the VSR disconnects the batteries, preventing any drain from the auxiliary battery to the main battery. VSRs are generally more efficient in terms of voltage loss compared to diode-based isolators. The choice between the two depends on your specific needs and preferences.
    Using a battery isolator with lithium-ion (Li-ion) batteries requires careful consideration and compatibility. Unlike traditional lead-acid batteries, Li-ion batteries have different charging requirements and voltage characteristics. Many standard battery isolators are designed for lead-acid batteries and may not be suitable for Li-ion batteries due to their unique charging needs. Li-ion batteries require specific charging profiles to ensure their longevity and safety. If you plan to use Li-ion batteries in your vehicle's dual battery setup, it's essential to choose a battery isolator specifically designed and rated for use with Li-ion batteries. These isolators will provide the appropriate charging profile and protection for your Li-ion batteries, ensuring their optimal performance and safety. Always refer to the manufacturer's specifications and recommendations for both the battery isolator and Li-ion batteries to ensure compatibility and proper operation. If you have any doubts or questions, consult with a knowledgeable professional to select the right components for your setup.
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