12v battery isolator relay comparison - September 2026

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Last updated on 06.09.2026

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Bolatus Battery Isolator Switch 12V 24V 48V Battery Switch 200A | Battery Kill Switch ON-OFF Battery Cut Off Switch for Car Truck Boat Yacht Caravan Motorcycle

Bolatus

free shipping

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9,9

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Hsthe Sea 12V 140A Voltage Sensitive Relay Battery Isolator Automatic Charging Relay Car Accessories for Car Battery Relay Yachting Dual Battery Isolator

Hsthe Sea

24% off

free shipping

To the product (1 offer)

9,8

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FEETER 12V 140A Voltage Sensitive Battery Isolator - Automatic Charging Relay for Car Accessories

Kemiuu

5% off

free shipping

To the product (1 offer)

9,8

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Heart Horse 12V 140A Split Charge Relay,VSR Dual Battery Isolator | 12V 140A VSR with LED voltage display, auto/manual modes and 13.3V cut-in/12.8V cut-out for campervans, boats and RVs.

Heart Horse

free shipping

To the product (1 offer)

9,6

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12V 140Amp Split Charge Relay, Smart Dual Battery Isolator with LED Display | Manual/Auto Modes, VSR-Voltage Sensitive Relay Kit for Campervan Van Truck SUV RV ATV UTV Boat Camper Vehicle

CHAMSUREUK

7% off

free shipping

To the product (1 offer)

9,6

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Tiardey Smart Dual Battery System isolator Car Voltage Sensitive Relay VSR 12V 140A C9E1

Tiardey

free shipping

To the product (1 offer)

9,6

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3m Split Charge Relay Kit 12v 140amp Leisure Battery Kit Voltage Sensitive Relay VSR Smart Dual Battery Isolator Kit for camper auto van

UCkasayfy

free shipping

To the product (1 offer)

9,5

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Split Charge Relay Kit 12V 140Amp with LED Screen Display | Smart Dual Battery Isolator Kit, Voltage Sensitive Relay kit, for Car, Caravan, Off-road, Truck, SUV, RV, ATV, UTV, Boat

JAOGAUS

7% off

free shipping

To the product (1 offer)

9,5

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Split Charge Relay Kit, Dual Battery Isolator Kit 12V 140Amp | Voltage Sensitive Relay, Ror Car, Caravan, Off-road, Truck, SUV, RV, ATV, UTV, Boat

CISSIYOG

3% off

free shipping

To the product (1 offer)

9,5

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Gebildet 4 Pin Heavy Duty High Current Relay Battery Isolator 12V DC 500 Amp Vehicle SPST Contactor Double Isolator Control On/Off Switch

Gebildet

free shipping

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9,4

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VEVOR Split Charge Relay Kit, 6mtr 12V, Automatic Dual Battery Isolator Kit with 140AMP Voltage Sense Relay VSR, Compatible with RV Marine Car Vehicle Truck Caravan Camper Yacht ATV UTV Boats Workshop

VEVOR

£ 56.84 free shipping

To the product (1 offer)

6% off

QWORK® 12V 140A Dual Battery Isolator, Split Charge Relay with Waterproof Housing, for Cars, Trucks, Motorhomes and Boats

QWORK

£ 15.45 free shipping

To the product (1 offer)

Kill Switch for Car With Remote - 12V 240A Battery Isolator Switch - Car Battery Isolator Anti Theft Switch Prevent Battery Drain With 2 Wireless Remote Controls for RV Truck Camper Boat

HuuppHip

£ 20.99 free shipping

To the product (1 offer)

500 Amp Battery Isolator for Mobile Audio Relay Continuous Battery Isolator, 12v Battery Disconnect Relay 500A Relay and Isolator

KanSmart

£ 40.31 free shipping

To the product (1 offer)

DollaTek High Current Starter Relay 500 AMP DC 12V 4 Pin SPST Car Auto Start Contactor Double Batteries Isolator Control On/Off Switch

DollaTek

£ 14.99 free shipping

To the product (1 offer)

5M 12V 140 Amp Split Charge Relay Kit,VSR Dual LED Display Isolator Battery | Smart Voltage Sensitive Relay Kit Automatic Disconnect Switch, for Campervan Truck SUV ATV RV Boat Vehicles

Yeqqzq

£ 43.66 free shipping

To the product (1 offer)

Bordhap 200 Amp Heavy Duty High Current Power Performance Dual Battery Isolator Relay Us 12V

Bordhap

£ 13.24 free shipping

To the product (1 offer)

AULESSE 12V 140 Amp Split Charge Relay with Led Voltmeter Manual/Auto Mode | Voltage Sensitive Relay, Waterproof, VSR, Smart Dual Battery Isolator, For Marine Truck ATV UTV RV Boat Vehicles

AULESSE

£ 20.99 free shipping

To the product (1 offer)

Kaloeou 500 Amp 12V Automatic Battery Isolator for Mobile Audio Relay, Black

Kaloeou

£ 34.39 free shipping

To the product (1 offer)

DieseRC Wireless Remote Control Disconnect Switch, DC 12V 200A Relay Receiver Car Battery Isolator with 2 Transmitters, Anti Theft Kill Switch Prevent Battery Drain

DieseRC

£ 21.99 free shipping

To the product (1 offer)

Nilight - 90015A Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty

Nilight

£ 12.74 free shipping

Only:

37hrs

14min

00sec

To the product (3 offers)

Proster 12V/32V Dual Battery Isolator Switch 4-Position Disconnect | Battery Selector Switch for Dual Battery Systems. 4-Position Disconnect Switch for 12V and 32V Vehicles

Proster

£ 26.99 free shipping

To the product (1 offer)

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