12V 140A Dual Battery Isolator Kit Smart Voltage Relay Split Charge Wiring Set - 1
12V 140A Dual Battery Isolator Kit Smart Voltage Relay Split Charge Wiring Set - 2
12V 140A Dual Battery Isolator Kit Smart Voltage Relay Split Charge Wiring Set - 3
12V 140A Dual Battery Isolator Kit Smart Voltage Relay Split Charge Wiring Set - 4
12V 140A Dual Battery Isolator Kit Smart Voltage Relay Split Charge Wiring Set - 5
12V 140A Dual Battery Isolator Kit Smart Voltage Relay Split Charge Wiring Set - 6
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12V 140A Dual Battery Isolator Kit Smart Voltage Relay Split Charge Wiring Set
94
Price: $53.99
Product Description
✨Smart Automatic Charging & Battery Protection. This kit allows your secondary battery to power accessories—such as lights, radios, and mini fridges—while preserving the main battery for starting the engine.
Brand: Unbranded
Current Type: DC
Type: voltage-sensitive relay
Maximum Amperage: 140 A
Coil Voltage: 12 V
Features: Heavy Duty
Application: Automotive
Smart Home Compatibility: Universal
Gimmu Editor's Notes

Our research indicates that this product is $24.57 (-31.27%) less than the average price.

More Gimmu Product Intelligence

Gimmu Price Intelligence for 19 similar items

Price Distribution

Price histogram chart:

  • Price Range: 30.41 - 53.24, Count: 4 items
  • Price Range: 53.24 - 76.07, Count: 4 items
  • Price Range: 76.07 - 98.89, Count: 7 items
  • Price Range: 98.89 - 121.72, Count: 3 items
  • Price Range: 121.72 - 144.55, Count: 1 items

Item Comparison

Price ($)
This Item: $53.99
Lowest Price: 30.41 (Smart Dual Battery Isolator 12V 140A Split Charge Relay Kit w/ Digital Voltmeter)
Condition Score
This Item: 100
Best Condition: 100 (Split Charge Relay Kit, 6Mtr 12V, Automatic Dual Battery Isolator Kit with 140AM)
Seller Feedback (%)
This Item: 99
Best Feedback: 100 (Split Charge Relay Kit, 6Mtr 12V, Automatic Dual Battery Isolator Kit with 140AM)

AI Suggested Searches

Split Charge Relay Kit 6mtr 12v Automatic Dual Battery Isolator Kit 140amSmart Dual Battery Isolator 12v 140aDual Battery Isolator Kit 12v Vehicles Waterproof Split Charge Relay

Top 3 12V 140A Dual Battery Isolator Kit Smart Voltage Relay Split Charge Wiring Set (July 2026) in the United States

Top Pick
80
MICTUNING 140A Dual Battery Isolator, Voltage Sense Relay Split Charge Relay Kit
$31.31
MICTUNING 140A Dual Battery Isolator, Voltage Sense Relay Split Charge Relay Kit
MICTUNING 12V 140 AMP Dual Battery Isolator Voltage Sensitive Relay with Digital Voltmeter Smart VSR Manual/Automatic Charger Disconnect Lead-Acid Battery for Truck RV UTV Boat Marine Specification For 12V Working Voltage: Cut in at 13.3V/1s, Cut out at 12.8V/7s Over-voltage Protection at ≥16V Max Current 140A For 24V Working Voltage: Cut in at 26.6V/1s, Cut out at 25.6V/7s Over-voltage Protection at ≥32V Max Current 100A NOTE: Work for Lead-Acid Batteries, NOT for Lithium Batteries.
View Product Analysis
Product Analysis
Editor's Note:

This product is $48.54 (-60.79%) less than the average price.

92%
100%
100%
Runner-up
79
Dual Battery Smart Isolator 12V 140A Voltage Sensitive Split Charge Relay VSR Ca
$39.79
Dual Battery Smart Isolator 12V 140A Voltage Sensitive Split Charge Relay VSR Ca
Built-in LED indication (ON when VSR engages). 1 x Car Smart Battery Isolator. Surface or panel mount options provides flexibility when installing. Robust Glass Fiber reinforced Nylon enclosure. Waterproof Level: IP67.
View Product Analysis
Product Analysis
Editor's Note:

This product is $40.06 (-50.17%) less than the average price.

90%
100%
100%
Budget Pick
80
Smart Dual Battery Isolator 12V 140A Split Charge Relay Kit w/ Digital Voltmeter
$30.41
Smart Dual Battery Isolator 12V 140A Split Charge Relay Kit w/ Digital Voltmeter
MICTUNING 12V 140 AMP Dual Battery Isolator Voltage Sensitive Relay with Digital Voltmeter Smart VSR Manual/Automatic Charger Disconnect Lead-Acid Battery for Truck RV UTV Boat Marine Specification For 12V Working Voltage: Cut in at 13.3V/1s, Cut out at 12.8V/7s Over-voltage Protection at ≥16V Max Current 140A For 24V Working Voltage: Cut in at 26.6V/1s, Cut out at 25.6V/7s Over-voltage Protection at ≥32V Max Current 100A NOTE: Work for Lead-Acid Batteries, NOT for Lithium Batteries.
View Product Analysis
Product Analysis
Editor's Note:

This product is $49.44 (-61.92%) less than the average price.

92%
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100%

Best of the Rest
We also considered these 19 items, but they didn't rank quite as highly. But they are still well worth considering.

80
MICTUNING 140A Dual Battery Isolator, Voltage Sense Relay Split Charge Relay Kit
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Dual Battery Smart Isolator 12V 140A Voltage Sensitive Split Charge Relay VSR Ca
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Smart Dual Battery Isolator 12V 140A Split Charge Relay Kit w/ Digital Voltmeter
$30.41
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This product is $49.44 (-61.92%) less than the average price.

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3M Split Charge Relay Kit,12V 140 Amp Smart Dual Battery Isolator Kit with Led V
$77.03
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This product is $2.82 (-3.53%) less than the average price.

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Dual Battery Isolator Kit for 12V Vehicles Waterproof Split Charge Relay System
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This product is $6.18 (-7.74%) less than the average price.

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Dual Battery Isolator Kit for 12V Vehicles Waterproof Split Charge Relay System
$76.59
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Editor's Note:

This product is $3.26 (-4.08%) less than the average price.

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73
Split Charge Relay Kit, 6mtr 12V Automatic Dual Battery Isolator Kit with 140AMP
$75.49
Split Charge Relay Kit, 6mtr 12V Automatic Dual Battery Isolator Kit with 140AMP
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Editor's Note:

This product is $4.36 (-5.46%) less than the average price.

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73
Dual Battery Isolator Kit 12V 140A Voltage Sensitive Relay Smart VSR for Car RV
$75.97
Dual Battery Isolator Kit 12V 140A Voltage Sensitive Relay Smart VSR for Car RV
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Editor's Note:

This product is $3.88 (-4.86%) less than the average price.

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73
Smart Dual Battery Isolator 12V 140A Voltage Sensitive Relay for RVs, Trucks, Bo
$45.89
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Editor's Note:

This product is $33.96 (-42.53%) less than the average price.

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71
Dual Battery Isolation Kit, 6m 12V, Auto Split Charge Relay System with 140AMP V
$64.65
Dual Battery Isolation Kit, 6m 12V, Auto Split Charge Relay System with 140AMP V
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Editor's Note:

This product is $15.2 (-19.04%) less than the average price.

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67
3M Dual Battery Isolator Kit 140Amp Battery Isolator 12V Kit Split Charge Relay
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3M Dual Battery Isolator Kit 140Amp Battery Isolator 12V Kit Split Charge Relay
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Editor's Note:

This product is $14.26 (17.86%) more than the average price.

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67
Split Charge Relay Kit, 6Mtr 12V, Automatic Dual Battery Isolator Kit with 140AM
$93.93
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Editor's Note:

This product is $14.08 (17.63%) more than the average price.

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67
12V 140A Intelligent Battery Isolator Kit 6m Cable Split Charge
$76.99
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This product is $2.86 (-3.58%) less than the average price.

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67
Split Charge Relay Kit, 6Mtr 12V, Automatic Dual Battery Isolator Kit with 140AM
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This product is $14.04 (17.58%) more than the average price.

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66
Split Charge Relay Kit, 6Mtr 12V, Automatic Dual Battery Isolator Kit with 140AM
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This product is $16 (20.04%) more than the average price.

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63
Split Charge Relay Kit, 6Mtr 12V, Automatic Dual Battery Isolator Kit with 140AM
$101.97
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This product is $22.12 (27.7%) more than the average price.

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62
Split Charge Relay Kit, 6Mtr 12V, Automatic Dual Battery Isolator Kit with 140AM
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Split Charge Relay Kit, 6Mtr 12V, Automatic Dual Battery Isolator Kit with 140AM
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This product is $26.14 (32.73%) more than the average price.

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57
Split Charge Relay Kit, 6Mtr 12V, Automatic Dual Battery Isolator Kit with 140A
$119.10
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This product is $39.25 (49.15%) more than the average price.

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46
12V Dual Battery Isolator Kit - Waterproof Split Charge Relay System
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Editor's Note:

This product is $64.7 (81.02%) more than the average price.

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