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Compact black ABS box with LCD screen and wiring kit

VEVOR

VEVOR VSR002 Dual Battery Isolator Kit 12V 140A with LCD Screen

SKU CH-KB9Q-48WZD

A 12V dual-battery isolator with voltage-sensitive relay, LCD screen, 140A peak and 100A continuous current, plus 6m cables for RV, boat or off-road use

  • Product typeOther Appliances
  • Overall width8.5
  • Automatic voltage sensing protects both batteries at 12.3V cut-in and 12.6V cut-out
  • Handles 140A peak current for five minutes and 100A continuous charging
  • LCD screen shows real-time voltage status for instant monitoring
  • Includes 19.7 ft positive cable and full mounting hardware for quick install
  • Compact ABS housing measures 68 x 68 x 56 mm and weighs 1.5 kg

12 V 140 A Dual Battery Isolator

The VEVOR VSR002 is a voltage sensitive relay kit designed for 12 V storage batteries. It provides both manual and automatic switching modes and includes an LCD screen for real-time voltage monitoring. The kit comes with a 140 A peak relay, 6 m positive and 0.64 m negative cables, mounting screws, lug terminals, heat shrink tubing and cable ties.

Suited For Single 12 V Auxiliary Batteries

This isolator suits owners of ATVs, UTVs, RVs, campers, off-road vehicles, caravans, trucks, boats and yachts who need to charge a second 12 V battery from the alternator. Builders requiring a different system voltage, adjustable voltage thresholds or higher continuous current should look at a different controller.

Cut In 12.3 V Cut Out 12.6 V

The relay engages charging at 12.3 V and disconnects at 12.6 V, delivering up to 140 A for short bursts and 100 A continuously. These fixed thresholds decide whether the unit matches the battery chemistry and alternator behaviour of the intended installation.

How it compares

Measured against everything we stock in Specialty Kitchen Gadgets, at today’s prices. Recalculated every night.

Price $47.99
Cheaper than about 68% of the 3,885 comparable items (median $66.99).

Specifications

Product
Product typeOther Appliances

Questions about this item

How much space is needed to mount the 68 × 68 × 56 mm VSR unit?

The voltage sensitive relay measures 68 mm long, 68 mm wide and 56 mm high, so allow at least that footprint plus clearance for the 6 m positive and 0.64 m negative cables.

Which wiring step is most often missed when installing the VSR002 kit?

Fit the supplied 25-6 toroidal terminal block and the 25-8 and 16-8 lug ends onto the 6 m positive and 0.64 m negative cables, then slide the red heat-shrink tubing over each crimp before tightening the M4 screws.

What ongoing checks does the 140 A dual battery isolator require?

Inspect the cable lugs, heat-shrink seals and M4 mounting screws periodically for corrosion or loosening, and verify the LCD still shows cut-in at 12.3 V and cut-out at 12.6 V.

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