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Deal.ai › VEVOR
Vevor
Vevor Battery Isolator 12V 300A Dual Battery Isolator with LCD Display

Vevor Battery Isolator 12V 300A Dual Battery Isolator with LCD Display

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$54.90at FactoryPureChecked Nov 10

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Price facts

  • Last seen at $54.90 at FactoryPure on Nov 10.

Our take on the Vevor Battery Isolator 12V 300A Dual Battery Isolator with LCD Display

The Vevor is a 12V, 300A voltage-sensitive relay that links a main and an auxiliary battery so both charge from the alternator while keeping the starter battery from draining. It works with lithium and lead-acid batteries, has an LCD showing both battery voltages, and offers automatic and manual modes plus an adjustable 3-60 second switching delay. Built-in overvoltage and undervoltage protection and a sealed housing suit cars, trucks, RVs, UTVs, ATVs and boats. Against basic solenoid isolators it adds a display and adjustable delay; against smart DC-DC chargers it is simpler and does not boost or condition the charge, so it suits owners who want a straightforward relay with visible voltages.

Best forRV and camper dual-battery setupsTrucks and off-road vehicles with a winch or accessory batteryBoat owners adding a house batteryDIYers who want to watch both battery voltages
Pros
  • 300A rating handles heavy loads and larger alternators
  • LCD shows both battery voltages at a glance
  • Works with lithium and lead-acid batteries
  • Adjustable 3-60 second delay limits relay chatter
  • Manual mode lets you link or separate the batteries yourself
  • Overvoltage and undervoltage protection built in
Cons
  • Voltage-sensitive relay, not a smart charger: no DC-DC boosting or charge profiling
  • LCD and electronics add failure points a plain solenoid does not have
  • Wiring and setup take more care than a simple switch
  • No Bluetooth or app monitoring

Vevor Battery Isolator 12V 300A Dual Battery Isolator with LCD Display prices at every store

  • FactoryPureNew

    In stockReturn policy

    $54.90Checked Nov 10
    Visit FactoryPure

About the Vevor Battery Isolator 12V 300A Dual Battery Isolator with LCD Display

The Vevor Battery Isolator is a 12V, 300A voltage-sensitive relay for dual-battery systems in vehicles and off-grid setups. It works with both lithium and lead-acid batteries and adjusts charging behavior automatically.

It has manual and automatic modes. An LCD screen shows the voltage of both batteries in real time. The switching delay is adjustable from 3 to 60 seconds, which helps reduce frequent switching.

The unit has built-in overvoltage and undervoltage protection and a durable housing. It is intended for cars, trucks, RVs, UTVs, ATVs, and boats.

Type
Voltage-sensitive relay, dual battery isolator
Voltage
12V
Current
300A
Battery types
Lithium and lead-acid
Modes
Manual and automatic
Display
LCD with real-time dual voltage monitoring
Delay
Adjustable, 3-60 seconds
Protection
Overvoltage and undervoltage
Compatibility
Cars, trucks, RVs, UTVs, ATVs, boats

Questions and answers

How is this different from a plain battery isolator solenoid?
It adds an LCD that shows both battery voltages, an adjustable 3-60 second delay and overvoltage and undervoltage protection. A plain solenoid just opens and closes on a trigger.
Does it charge a lithium auxiliary battery properly?
It connects the batteries so the alternator charges both, and it supports lithium and lead-acid. It does not boost or profile the charge the way a DC-DC charger does, so check your lithium battery's charging requirements.
What does the 3-60 second delay do?
It sets how long the relay waits before linking or separating the batteries, which reduces rapid switching when voltages hover near the threshold.
Can I link or separate the batteries manually?
Yes. Manual mode lets you connect or isolate the auxiliary battery yourself, useful for winching or running accessories with the engine off.
What is the 300A rating for?
It is the current the relay is rated to carry, so it suits high-draw loads such as a winch or a large inverter, and bigger alternators.
What do I need to install it?
Heavy-gauge cable rated for your current, fuses on both battery connections, and a mounting spot away from heat and water. Plan the wiring before you start.
Where is the Vevor Battery Isolator 12V 300A Dual Battery Isolator with LCD Display cheapest?
At FactoryPure, for $54.90, as of our latest check.

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