10 Unbelievable Dual Battery Isolator For 2024

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Introducing the ultimate guide for 2023 – "10 Unbelievable Dual Battery Isolators." If you're an avid traveler, off-roader, or an outdoor enthusiast, you understand the importance of reliable power sources. Dual battery isolators provide a seamless and efficient way to power up multiple devices or accessories without draining your vehicle's primary battery. In this comprehensive list, we've curated the top ten dual battery isolators that offer unmatched performance, durability, and convenience. Get ready to explore the world with peace of mind in 2023, knowing you have the best dual battery isolator to keep your power needs in check.

 

The Ampper 12V 140Amp Dual Battery Isolator is a voltage sensitive relay designed for two battery systems. It allows for two separate power sources while charging by one alternator, making it suitable for car, vehicle, RV, ATV, UTV, and boat applications. The isolator cuts in at 13.3 volts and cuts out at 12.8 volts, ensuring that the primary battery is always charged and ready to start the engine. It is heavy-duty, water-resistant, shock-resistant, dust-proof, and can withstand extreme weather conditions. The isolator is easy to install and comes with a mounting plate and bolts. It is not compatible with Lithium batteries but works well with Acid-Lead batteries. With a 4.2/5 customer rating, this product is worth considering for those in need of a reliable battery isolator.

Key Features

  • Allows for two separate power sources while charging
  • Cuts in at 13.3 volts and cuts out at 12.8 volts
  • Heavy-duty and resistant to water, shock, and dust
  • Compatible with car, vehicle, RV, ATV, UTV, and boat
  • Easy installation with included mounting plate
  • Specifications

  • Color: 12V 140Amp
  • Dimension: 2.76Lx3.74Wx2.60H
  • Size: Vsr
  • Pros

  • Reliable battery isolation for two battery systems
  • Heavy-duty construction suitable for off-road use
  • Easy installation with included mounting plate
  • Compatible with various vehicles and boats
  • Reasonable price for the features offered
  • Cons

  • Not compatible with Lithium batteries
  • Grounding cable could be more sturdy
  • Some reports of quality control issues
  •  

    The Ampper 12V 140Amp Dual Battery Isolator is a practical and reliable solution for those who require a voltage sensitive relay for their two battery systems. It is built to withstand harsh conditions and provides efficient charging and isolation. While it may have a few limitations and occasional quality control issues, the overall customer satisfaction is high. If you are in need of a budget-friendly battery isolator that gets the job done, the Ampper Dual Battery Isolator is worth considering.

     

    The Dual Battery Isolator 12V 140Amp is a voltage sensitive relay (VSR) that ensures your primary battery is always charged and ready to run your vehicle. It is compatible with a wide range of vehicles, including ATV, UTV, boats, RVs, marine vehicles, trucks, caravans, and more. With easy installation and clear instructions, this battery isolator works seamlessly to link and disengage the two batteries as needed. It also comes with a 12-month warranty for added peace of mind. While there are no reviews provided in the summary, the product has received a customer rating of 4.5/5. Overall, the Dual Battery Isolator offers a reliable solution for battery management and is a worthwhile investment.

    Key Features

  • Wide compatibility with various vehicles
  • Voltage Sensitive Relay (VSR) ensures primary battery is charged
  • Engages and disengages batteries based on voltage levels
  • Important Note: Connect accessories to second battery with proper fusing
  • Comes with a 12-month warranty for added peace of mind
  • Specifications

  • Color: 12V VSR
  • Size: 12V VSR
  • Pros

  • Works well with GM 1 wire alternator
  • Easy installation with clear instructions
  • Charges the secondary battery efficiently
  • Can also charge the start battery with solar or shore power
  • Provides positive engagement with an audible click
  • Cons

  • Terminals may be small for the load
  • Plastic may break when screwing in the device
  •  

    The Dual Battery Isolator 12V 140Amp is a reliable and easy-to-install solution for managing your vehicle’s batteries. With its wide compatibility, efficient charging capabilities, and the added benefit of being able to charge the start battery, it offers great functionality. The product has received a positive customer rating of 4.5/5, indicating its effectiveness and customer satisfaction. However, it’s important to note that some users have experienced issues with the terminals and plastic durability. Overall, if you’re looking for a battery isolator that is compatible with various vehicles and provides reliable battery management, this product is worth considering.

     

    The Stinger SGP32 200 AMP Battery Relay Isolator and Relay is a high-quality battery isolator designed to prevent primary battery discharge and extend battery life. It offers maximum current transfer and is suitable for various 12V applications. With its universal compatibility, this isolator is a reliable choice for anyone needing a quality part. The Stinger SGP32 is easy to install and has received positive reviews for its performance and durability. However, some users found the provided instructions lacking in technical explanations. Additionally, the size of the relay is larger than expected. Overall, the Stinger SGP32 is a reliable solution for battery isolation and comes highly recommended.

    Key Features

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

  • Color: Black
  • Dimension: 7.90Lx2.70Wx5.90H
  • Pros

  • Prevents primary battery discharge
  • Extends battery life
  • Maximum current transfer
  • Easy to install
  • Cons

  • Instructions could be more detailed
  • Relay is larger than expected
  •  

    The Stinger SGP32 200 AMP Battery Relay Isolator and Relay is a top choice for preventing battery discharge and extending battery life. With its maximum current transfer and universal compatibility, it offers reliable performance for various 12V applications. While the instructions could be more detailed and the relay is larger than expected, these minor drawbacks do not outweigh the benefits and effectiveness of the product. If you’re in need of a quality battery isolator, the Stinger SGP32 is a great option to consider. It has received positive feedback from users and is known for its durability and ease of installation. Take advantage of this reliable solution to keep your batteries in optimal condition.

     

    Ensure a reliable power source for your vehicle with the Mata1 Dual Battery Isolator Kit. This smart car charger is designed to keep your main battery charged and your engine running, so you never have to worry about running out of power during your travels. With its universal compatibility, it can power up any ground or marine vehicle, making it a versatile solution for all your automotive power needs. The dual battery isolator has an IP-67 waterproof rating, allowing it to withstand even the toughest weather conditions. Made with premium-grade materials, it is built to last. The compact design of the isolator kit ensures easy installation and includes all the necessary components for a hassle-free setup.

    Key Features

  • Reliable power source for on-road travels and off-road expeditions
  • Universal compatibility for any ground or marine vehicle
  • IP-67 waterproof rating for all-weather resilience
  • Heavy-duty construction for lasting performance
  • Easy installation with complete kit and instructions
  • Specifications

    Pros

  • Reliable and efficient power source
  • Versatile compatibility with various vehicles
  • Resilient in all weather conditions and terrains
  • Durable construction for long-lasting performance
  • Hassle-free installation with complete kit and instructions
  • Cons

  • Lack of specifications provided
  • Occasional issues with shipping damages
  •  

    The Mata1 Dual Battery Isolator Kit is a reliable and efficient solution for maintaining power in your vehicle. With its universal compatibility and all-weather resilience, it ensures you never run out of power during your adventures. The heavy-duty construction guarantees long-lasting performance, while the compact design and complete kit make installation a breeze. Although the lack of specifications may be a drawback for some, the overall positive customer reviews prove its effectiveness. If you’re in need of a dependable power source for your automotive land or marine vehicle, the Mata1 Dual Battery Isolator Kit is worth considering.

     

    The Dual Battery Isolator Kit 12 Volt 140 Amp Voltage Sensitive Relay Complete VSR Double Battery Automatic Charger is a versatile product that can be installed in various vehicles. It allows your accessories to run from a separate battery while keeping your main battery charged and your vehicle ready to work. Designed to withstand dusty, wet, and extreme weather conditions, this kit includes a 12 Volt 140 Amp Voltage Sensitive Relay Isolator, instructions, and all the necessary accessories. It comes with a 6-month warranty and responsive customer support. With a rating of 4.4/5, customers praise its effectiveness, ease of installation, and value for money. However, some users found the instructions confusing and experienced issues with the device's durability.

    Key Features

  • Can be installed in various vehicles
  • Allows accessories to run from a separate battery
  • Keeps main battery charged and vehicle ready to work
  • Works in dusty, wet, and extreme weather conditions
  • 6-month warranty and responsive customer support
  • Specifications

  • Color: Iso-Pro140 Pro Dual Battery Kit
  • Dimension: 12.40Lx8.66Wx3.15H
  • Pros

  • Effective in keeping backup battery charged
  • Easy installation with clear instructions
  • Good quality components
  • Reasonably priced kit
  • Comes with all necessary accessories
  • Cons

  • Confusing instructions
  • Durability issues reported
  •  

    The Dual Battery Isolator Kit 12 Volt 140 Amp Voltage Sensitive Relay Complete VSR Double Battery Automatic Charger is a solid choice for those looking to separate power sources in their vehicles. It offers solid performance, easy installation, and a reasonable price. While the instructions may require some additional clarity, the overall satisfaction of customers speaks highly of its effectiveness. However, a small number of users mentioned issues with durability, so it’s important to take proper care and maintenance of the device. Overall, it’s a reliable kit that provides peace of mind for those who rely on accessory power while keeping their main battery charged and ready to go.

     

    The Dual Battery Isolator Kit Heavy Duty 300 AMP is the ultimate charging solution for heavy duty dual battery systems. With its cutting-edge programming, it delivers optimum performance while preserving output power. This Voltage Sensitive Relay (VSR) ensures that your start battery is always charged by cutting in at 13.3 volts and cutting out at 12.8 volts. It is IP65 Certified, making it safe for use in various weather conditions. The compact design allows for easy installation under the hood or in any convenient location near your batteries. The kit includes all the necessary components for a successful installation, saving you the hassle of shopping for individual parts. With an industry-leading 3-year warranty and a 30-day money back guarantee, the Dual Battery Isolator Kit offers peace of mind and reliable performance.

    Key Features

  • 300-amp Dual Battery Isolator
  • Optimum performance with zero power loss
  • IP65 Certified for off-road use
  • Complete kit with all necessary components
  • Backed by a 3-year warranty
  • Specifications

  • Size: 300 AMP Kit
  • Pros

  • Designed for heavy duty dual battery systems
  • Preserves output power with advanced programming
  • Safe for use in extreme weather conditions
  • Includes all necessary components for installation
  • Backed by a generous warranty
  • Cons

  • Poorly designed cabling
  • Instructions could be clearer
  • Not suitable for smart alternator systems
  •  

    The Dual Battery Isolator Kit Heavy Duty 300 AMP is an excellent choice for those with heavy duty dual battery systems. Its advanced programming and voltage sensitive relay ensure optimal performance and a constantly charged start battery. The IP65 certification makes it suitable for off-road use in any weather condition. The kit includes everything you need for a successful installation, and the industry-leading warranty provides peace of mind. However, be aware of the issues with the included cables and the compatibility with smart alternator systems. Overall, this kit offers reliable and efficient charging for your dual battery setup.

     

    The Spartan Power Smart Dual Battery Isolator is a versatile and reliable device that allows you to run two batteries simultaneously, keeping them fully charged and protected. It is easy to install and operate, ensuring a smooth and hassle-free experience. With its smart design, this battery isolator eliminates the risk of overcharging or shorting out your vehicle's electrical system. Whether you're using it for vans, trucks, RVs, motorhomes, ATV, UTV, boats, or off-road vehicles, the Spartan Power Dual Battery Isolator is the perfect tool to stay prepared. Trusted by professionals and DIYers, Spartan Power manufactures high-quality battery cables in the USA. With a customer rating of 4.6/5, this dual battery isolator has received positive reviews for its performance and functionality.

    Key Features

  • Stay Prepared: Allows you to run two batteries simultaneously
  • Versatile: Compatible with any 12 Volt battery
  • Simple to Use: Easy installation and operation
  • Safe: Designed to prevent overcharging and shorting out
  • Giving Power to The People: Manufactured in the USA by Spartan Power
  • Specifications

  • Dimension: 2.75Lx2.75Wx2.00H
  • Pros

  • Efficiently transfers charge between batteries
  • Reliable and durable construction
  • Helps optimize the charge of the two-battery system
  • Includes wire lugs and mounting bolts for easy installation
  • Compatible with various vehicles and applications
  • Cons

  • Instructions could be more detailed
  • Terminals could be larger
  •  

    The Spartan Power Dual Battery Isolator is a must-have for anyone in need of a reliable and efficient solution to manage their dual battery system. With its easy installation and operation, it ensures that your batteries stay charged and protected, without the risk of overcharging or shorting out. The versatile compatibility makes it suitable for a wide range of applications, from vans and trucks to RVs and boats. The positive customer reviews further attest to the quality and performance of this product. With Spartan Power’s commitment to manufacturing high-quality accessories, you can trust in the durability and reliability of this dual battery isolator.

     

    The DEWINNER 12V 140Amp Dual Battery Isolator Kit is designed to provide a reliable and convenient solution for charging two battery systems. With its easy installation process and voltage sensitive relay, this kit ensures that your primary battery is always charged and ready to start your vehicle. It fits a wide variety of vehicles and is suitable for 12V 4WD, marine, truck, caravan, and camping applications. The kit includes all the necessary components for installation and comes with a 12-month warranty. Please note that there have been some reported issues with missing screws for the fuse block and an incorrect length of the red power cable in some cases.

    Key Features

  • Easy to Install: No alternator or ignition connection needed
  • Voltage Sensitive Relay: DEWINNER Automatic 140 Amp Dual Battery Isolator
  • Fits a Wide Variety of Vehicles: Like Having Two Separate Power Sources
  • What You Get: 140 Amp Voltage Display Battery Isolator
  • Buy With Confidence: Every 140 Amp Dual Battery Isolator is backed by an industry leading 12-month warranty
  • Specifications

  • N/A
  • Pros

  • Easy installation with everything included
  • Voltage sensitive relay ensures primary battery is always charged
  • Suitable for a variety of vehicles
  • Comes with a 12-month warranty
  • Cons

  • Missing screws for fuse block in some cases
  • Incorrect length of red power cable reported by a customer
  • Some customers experienced issues with battery isolator not working
  •  

    The DEWINNER 12V 140Amp Dual Battery Isolator Kit offers a convenient and reliable solution for charging two battery systems. With its easy installation process and voltage sensitive relay, you can ensure that your primary battery is always ready to start your vehicle. The kit is suitable for a wide range of vehicles and comes with a 12-month warranty for added peace of mind. However, some customers have reported issues with missing screws and incorrect cable length. Despite these drawbacks, this kit provides good value for its price and performs its job effectively.

     

    The REINDEER Dual Battery Smart Isolator 12V 140Amp Double Battery Automatic Charger ATV UTV Wiring Kit is a reliable solution to manage power distribution in your vehicle. With its voltage sensitive chip, it ensures that your primary battery is always ready to run while allowing your accessories to run from a separate battery when the engine is not running. This dual battery isolator kit keeps your main battery charged and your vehicle always ready to go and start when you want it. It is compatible with a wide range of vehicles and comes with a lifetime warranty for added peace of mind. Install this kit and enjoy the convenience of multiple power sources in your vehicle.

    Key Features

  • 12V, 140A, 13.3V cut-in voltage, 12.8V cut-out voltage
  • Package Include All the Bits and Pieces Needed for a Complete Installation
  • Working Voltage: Having Voltage Sensitive Chip
  • Rely Cuts in at 13.3 Volts and Cuts out at 12.8 Volts to Ensuring Primary Battery is Always Ready for Vehicle to Run
  • Fuction: Like Having Two Separate Power Sources
  • The Dual Battery Isolator Kit Enables Your Accessories to Run From a Separate Battery While the engine is not running on your vehicle
  • While keeping your Main Battery Charged and Your Vehicle Always Ready to Go and Start When You Want It
  • Compatibility: This battery isolators are small and suitable for almost anywhere
  • For ATV, UTV, Boats, RV's,marine vehicle, truck, caravan
  • LIFETIME WARRANTY: 100% High Quality and Enjoy Full Life Warranty, Free Exchange
  • Specifications

  • N/A
  • Pros

  • Easy installation with all necessary components included
  • Ensures primary battery is always ready for vehicle to run
  • Allows accessories to run from a separate battery
  • Keeps main battery charged and vehicle ready to go
  • Small and suitable for various vehicles
  • Comes with a lifetime warranty
  • Cons

     

    The REINDEER Dual Battery Smart Isolator 12V 140Amp Double Battery Automatic Charger ATV UTV Wiring Kit is a reliable and convenient solution for managing power distribution in your vehicle. Its voltage sensitive chip ensures that your primary battery is always ready to go, and the kit allows your accessories to run from a separate battery when the engine is not running. It is small, suitable for various vehicles, and comes with all the necessary components for easy installation. The lifetime warranty adds value and assurance to the product. Upgrade your vehicle’s power management system with this dual battery isolator kit and enjoy worry-free journeys.

     

    The Dual Battery Isolator Kit 250 Amp Universal 12V/24V Voltage Sensitive Relay VSR Smart Battery Isolator for Marine Car Truck RV ATV ensures that the main battery is always charged and ready to start the vehicle. It features automatic voltage connection, making it compatible with both 12V and 24V systems. The kit includes a lithium battery connection cable, allowing it to be used with vehicles equipped with lithium batteries. With a maximum current of 250 Amps and universal voltage compatibility, the isolator kit is suitable for a wide range of applications such as trucks, ATVs, boats, and RVs. The LCD display provides real-time monitoring of battery voltage for improved control. The kit is easy to install with its compact design and 4 fixing holes. It also includes an emergency button for quick start in case of a dead battery. Overall, the Dual Battery Isolator Kit offers a reliable and efficient solution for maintaining battery performance and ensuring a reliable start.

    Key Features

  • Smart Battery Isolator with dual power sources
  • Automatic voltage connection for 12V and 24V systems
  • Compatible with vehicles equipped with lithium batteries
  • Real-time monitoring of battery voltage with LCD display
  • Compact design with easy installation
  • Specifications

  • Color: 250 Amp Dual Battery Isolator
  • Pros

  • Ensures main battery is always charged
  • Compatible with lithium batteries
  • Real-time monitoring of battery voltage
  • Compact design with easy installation
  • Cons

  • Confusing and contradicting instructions
  • Size may make installation difficult
  •  

    The Dual Battery Isolator Kit 250 Amp is a reliable and efficient solution for maintaining battery performance and ensuring a reliable start. With its dual power sources and automatic voltage connection, it guarantees that the main battery is always charged and ready to go. The addition of a lithium battery connection cable allows for compatibility with vehicles equipped with lithium batteries, enhancing the kit’s versatility. The real-time monitoring of battery voltage through the LCD display provides improved control. Installation is made easy with the compact design and included fixing holes. However, the confusing and contradicting instructions may pose a challenge. Overall, this kit offers great value for the money and is a must-have for marine, car, truck, RV, and ATV owners.

     

    Buyer's Guide: Dual Battery Isolator

    A dual battery isolator is a crucial component for those who require two separate battery systems in their vehicles or boats. Whether you need to power additional accessories, equipments, or simply want a backup power source, a dual battery isolator ensures efficient and independent operation of both batteries. Here's a comprehensive buyer's guide to help you make an informed decision:

    Benefits of a Dual Battery Isolator:
    • Efficiency: A dual battery isolator allows both batteries to charge simultaneously while preventing any reverse power flow, ensuring optimal performance.
    • Convenience: Maintain a dedicated battery for starting the engine while utilizing the secondary battery for auxiliary features, reducing the risk of draining the primary battery.
    • Reliability: Ensure uninterrupted power supply to critical systems such as emergency communication devices and essential electronics.
    • Versatility: Dual battery isolators are suitable for a wide range of applications, from recreational vehicles to marine vessels and off-road vehicles.
    Factors to Consider before Purchasing a Dual Battery Isolator:
    1. Battery Compatibility: Ensure that the isolator is compatible with the battery types you intend to use. Common types include lead-acid, AGM, gel, and lithium-ion batteries.
    2. Amperage and Voltage: Check the maximum amperage and voltage ratings of the isolator to ensure compatibility with your vehicle or boat's electrical system.
    3. Number of Batteries: Determine if the isolator supports two batteries or if it can accommodate more, depending on your specific needs.
    4. Installation Process: Consider the complexity of installation. Some isolators require professional installation, while others are designed for easier DIY setups.
    5. Size and Mounting: Assess the dimensions of the isolator and ensure it can be easily mounted in your vehicle or boat without interfering with other components.
    6. Safety Features: Look for additional safety features such as over-temperature protection, short-circuit protection, and reverse polarity protection to safeguard your batteries and electrical system.
    Tips for Using a Dual Battery Isolator:
    • Ensure that the isolator is properly grounded and all connections are secure.
    • Regularly inspect the isolator for any signs of damage or wear and promptly address any issues.
    • Follow the manufacturer's instructions for installation, maintenance, and recommended usage.
    • It is advisable to include a battery monitor system to easily monitor the status of both batteries.
    • Prioritize the use of a deep cycle battery as your secondary battery for better performance and durability.

     

    FAQ:

    Q: How does a dual battery isolator work?
    A: A dual battery isolator allows charging and discharging of two separate batteries in a vehicle or boat. It ensures that power flows from the alternator or charger to both batteries simultaneously but prevents any reverse power flow between them.

    Q: Can I install a dual battery isolator myself, or do I need professional help?
    A: The complexity of installation varies depending on the isolator and your vehicle or boat’s electrical system. Some isolators can be installed as DIY projects with basic electrical knowledge, while others may require professional assistance.

    Q: Can I use different battery types with a dual battery isolator?
    A: Many dual battery isolators are compatible with various battery types, including lead-acid, AGM, gel, and lithium-ion batteries. However, it’s important to check the product specifications to ensure compatibility.

    Q: Do I need a special alternator for a dual battery isolator?
    A: In most cases, a standard alternator is sufficient for dual battery isolator operation. However, if you plan on charging batteries with higher capacities, you may need to consider upgrading to a higher-output alternator.

    Q: Can a dual battery isolator drain the primary battery?
    A: No, a properly installed and functioning dual battery isolator prevents the secondary battery from draining the primary battery. It ensures automatic separation when the voltage drops below a certain threshold to preserve the primary battery’s charge.

    Q: Can a dual battery isolator be used for solar power systems?
    A: Yes, dual battery isolators can be used with solar power systems, allowing you to charge your batteries efficiently and independently using solar energy.

    Q: Is it necessary to disconnect the secondary battery when not in use?
    A: It is not necessary to disconnect the secondary battery when not in use if you have a dual battery isolator installed. The isolator will handle the automatic separation and ensure that both batteries are properly maintained.