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Deal.ai › VEVOR
Vevor
Vevor Battery Isolator Kit 12V 140A Dual Battery Isolator with Manual and Automatic VSR

Vevor Battery Isolator Kit 12V 140A Dual Battery Isolator with Manual and Automatic VSR

Best price now

$68.90at FactoryPureChecked Nov 10

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Price facts

  • Last seen at $68.90 at FactoryPure on Nov 10.

Our take on the Vevor Battery Isolator Kit 12V 140A Dual Battery Isolator with Manual and Automatic VSR

The Vevor dual battery isolator is a 140A voltage-sensitive relay for 12V systems that charges a main and an auxiliary battery from one alternator. It runs in automatic mode, linking the batteries when charging voltage rises and separating them when it drops, or in manual mode where you control the link yourself. A built-in LCD shows both battery voltages, and an adjustable delay cuts relay chatter from short voltage dips. It works with lithium and lead-acid batteries and is sold as a kit with cables, connectors and mounting hardware. Compared with bare VSR relays, it adds the display and manual override; it is a relay-based isolator, not a DC-DC charger, so it suits vehicles with standard charging systems rather than smart alternators that need a boost charger.

Best forRV and camper dual-battery setupsUTV, truck and boat auxiliary battery chargingOff-grid 12V systems with a second batteryOwners who want to see both battery voltages at a glance
Pros
  • Automatic and manual modes in one unit
  • LCD shows main and auxiliary battery voltage
  • Adjustable delay reduces relay switching
  • Handles up to 140A on 12V systems
  • Works with lithium and lead-acid batteries
  • Kit includes cables, connectors and install hardware
Cons
  • Relay-type isolator, not a DC-DC charger for smart alternators
  • Voltage readout accuracy is not specified
  • Wiring and setup take some electrical know-how
  • No Bluetooth or app monitoring

Vevor Battery Isolator Kit 12V 140A Dual Battery Isolator with Manual and Automatic VSR prices at every store

  • FactoryPureNew

    In stockReturn policy

    $68.90Checked Nov 10
    Visit FactoryPure

About the Vevor Battery Isolator Kit 12V 140A Dual Battery Isolator with Manual and Automatic VSR

The Vevor dual battery isolator kit is made for 12V systems. It manages charging between a main battery and an auxiliary battery. It works with lithium and lead-acid batteries.

It has manual and automatic (VSR) operating modes. A built-in LCD screen shows the real-time voltage of both batteries. Adjustable delay timing helps reduce frequent switching.

The housing is shockproof and dustproof. The kit is intended for UTVs, RVs, trucks, boats and off-grid systems. It includes cables, connectors and installation accessories.

Brand
Vevor
Voltage
12V
Current rating
140A
Modes
Manual and automatic VSR
Compatibility
Lithium and lead-acid batteries
Display
Built-in LCD showing real-time voltage of both batteries
Delay
Adjustable delay timing
Construction
Shockproof and dustproof
Applications
UTVs, RVs, trucks, boats, off-grid systems
In the box
Isolator, cables, connectors, installation accessories

Questions and answers

How does the automatic mode work?
It senses charging voltage and closes the relay to link the batteries once the main battery is charging, then opens it when voltage falls after shutdown. That keeps the auxiliary load from draining the starting battery.
Will it work with a smart alternator?
It is a voltage-sensing relay, so it depends on the alternator raising system voltage while running. Vehicles with variable smart charging may need a DC-DC charger instead.
Can I use it with a lithium auxiliary battery?
Yes, it is listed as compatible with lithium and lead-acid batteries. Check that your lithium battery's charging profile matches what your alternator supplies.
What is the manual mode for?
Manual mode lets you force the batteries to link or separate yourself, useful for winching or running heavy loads from both batteries at once.
What is in the kit?
The kit includes the isolator unit plus cables, connectors and installation accessories for setup.
What does the LCD show?
It displays the real-time voltage of both the main and auxiliary batteries.
Where is the Vevor Battery Isolator Kit 12V 140A Dual Battery Isolator with Manual and Automatic VSR cheapest?
At FactoryPure, for $68.90, as of our latest check.

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