Top 9 Battery Isolator Switch Kit – Automotive Replacement Battery Switches

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1. Ampper

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Vehicle, Ampper Battery Switch, 12-48 V Battery Power Cut Master Switch Disconnect Isolator with Lugs for Car, RV and Boat On/Off Kit

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Ampper #ad - Purpose: eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely. Operation: on/off 2 positions, 455 a intermittent at DC 12V, 275 a continuous at dc 12v, 1250 A momentary at DC 12V.

Copper terminal stud size: 3/8" 10 mm x 2, very easy to install, Rv and boat, universal used for car, vehicle, also electrical equipment's switch. Compatible: used for dc 12 - 48 v systems to isolate and secure the electrical system, can stand alone or be locked together with other switch. Heavy duty: abs plastic housing, durable made for safety use, equiped with 4 sets of bolts, rear cover insulates terminals against any short of circuits, 4 pcs 2x3/8" copper lugs, a wrench and 4 pcs heat shrink tubing.
BrandAmpper #ad
ManufacturerAmpper #ad
Height2.95 Inches
Length2.76 Inches
Weight0.69 Pounds
Width3.74 Inches
Part NumberAm-CBS0101

2. NSTART

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Dual1-2-Both-Off Boat Battery Disconnect Switch,12V-60V Battery Cut/Shut Off Switch for Marine Car RV ATV UTV Vehicles,Waterproof Master Heavy Duty Battery Isolator Selector Switch Kit,200/1250Amps

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NSTART #ad - Great compatibilitythis dual marine battery switch is suitable for two batteries, It can stand alone, or be locked together with other switches to isolate and Can be used with 12V up to 60V DC systems to isolate and secure the electrical system, Offering a simple economic way of separating two batteries.

Heavy dutybattery shut off switch comes with 1-2-both-off 4 positions, 200 a continuous at DC 12V, 1250 A momentary at DC 12V, 455 A Intermittent at DC 12V, 3 mounting screw holes8mm diameterfor 8-10MM screw connection not included mounting hardware. Disconnects the battery safelythis battery cut off switch could eliminate any power draw from the battery when vehicle or boat is not in use. Compact size, sleek modern appearance, sturdy and durable.

Wide applicationthe ignition protection of battery power kill switch, which installed Safely on petrol-powered boats or vehicles, Widely Application in Ship Boat Small yacht RV Camper truck Car Vehicle Automobiles Campers ATV UTV battery banks and other 0-60V devices. Easy to installrefer to wiring diagram for installation, rear cover insulates terminals against any short of circuits, ABS plastic housing, making it ideal for marine applications, equiped with 4 sets of bolts.
BrandNSTART #ad
ManufacturerNSTART #ad
Part NumberN030
ModelN030

3. Blue Sea Systems

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Blue Sea Systems 7650 Add-A-Battery Kit

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Blue Sea Systems #ad - Simplifies switching. Combines batteries for emergency starting. 12/24 volt dc 120 amp automatic charging relay PN 7610 automatically combines batteries during charging. Isolates batteries during engine cranking and when not charging. Includes e-series dual circuit plus battery switch PN 5511E. Shares the charge between two batteries more efficiently than a battery isolator. Tin-plated copper studs for maximum conductivity and corrosion resistance. Isolates engine and house circuits.
BrandBlue Sea Systems #ad
ManufacturerBlue Sea Systems #ad
Height4 Inches
Length6 Inches
Weight2.36 Pounds
Width5 Inches
Part Number7650-BSS
Model7650

4. AA Ignition

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Power Cut-Off Switch, Battery Isolator Disconnect for Cars, RV, Boats, Master Battery Switch Kit with Screws 12-48V, Waterproof On Off Function Automotive, Marine Switch, Trucks, Campers

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AA Ignition #ad - Lifetime warranty - this battery cut off disconnect switch comes complete with a lifetime warranty. This battery cutoff disconnect switch safely disconnects your battery to isolate and secure the electrical system. On/off 2 position switch - made of durable abs plastic housing with terminal studs made of copper terminals that includes nuts and washers. Save time from being stranded and money from constantly replacing batteries by purchasing this battery disconnect switch from AA Ignition.

It is advisable to have the switch disconnect the negative side instead of the positive side as voltage can still run through the switch even if its off and still have the ability to short out when installed in the positive side. Battery power cutoff master on/off switch - batteries that are empty and not charged for a long time will shorten the life of the battery causing you to replace it sooner than necessary which can be expensive. 275 amps at 12v dc, 455 amps intermittent at 12V DC and 1250 Amps momentary at 12V DC. Great for cars, campers, truck, utv & boats - this battery master power disconnect switch can be a stand alone or used together with other switches and is great for almost disconnect purposes you can think of for Marine, RV, atv, Automotive and Campers.

It comes with rear cover to insulate terminals against any kind of circuit shorts. This battery shutoff switch allows you to eliminate any power being drawn from the battery when the RV, Boat, Camper, Car or Truck isn't being used after coming home from a trip. Oem fit, finish - this is a complete 12v-48v battery shut off switch kit manufactured by AA Ignition which includes 4 mounting screws for a hassle free installation, rear and side covers, Quality, and nuts and washers for the terminal studs.
BrandAA Ignition #ad
ManufacturerAA Ignition #ad
Part NumberGWA470
ModelGWA470
WarrantyLifetime Warranty

5. HORSMILE

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HORSMILE 12V 140Amp Voltage Sensitive Relay & Wiring Cable Kit, UTV, SUV, ATV, Fits Trucks, Complete VSR Double Battery Automatic Charger, ATV, Upgraded, Boats & More, Dual Battery Isolator Kit

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HORSMILE #ad - This dual battery isolator is also built to withstand extreme weather environments, vibration and is water resistant. Rugged durability -this dual battery isolator kit is all you need to charge a dual battery system. Voltage sensitive Relay VSR cuts in at 13. 3 volts and cuts out at 12.

8 volts to ensure your primary battery is always charged and ready to start your vehicle. Easy to install - no alternator or ignition connection needed, including leads, zip ties, screws, connectors, You don't need any additional components to complete installation as everything is included in the kit, and more. Voltage sensitive relay - the automatic 140 amp dual battery isolator is all you need to charge Two Battery Systems. It's like having two separate power sources for each battery while only having one alternator! Fits a wide variety of vehicles - this dual battery isolator kit with printed installation instruction manual gives You the Power for Your Recreation Without Needing to Worry About Getting Home After.

12v, 140a, truck, 13.3v cut-in voltage, suitable for 12V 4WD, Marine, 12.8v cut-out voltage, Caravan & Camping Applications. If you are not 100% satisfied with your purchase, Simply Take Advantage of the "No Questions Asked, 30-Day Money Back" Guarantee. Buy with confidence - every 140 amp dual battery isolator is backed by an industry leading 12-month Warranty.
BrandHORSMILE #ad
ManufacturerHorsmile #ad
Height2.09 Inches
Length2.64 Inches
Weight3.75 Pounds
Width2.64 Inches
Part NumberSR50669-12C

6. AA Ignition

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Safe, Dual Battery Isolator Kit, Complete VSR Double Battery Automatic Charger, SUV, Water and Vibration Resistant, ATV, UTV Boats and more, Fits Trucks, 12 Volt 140 Amp Voltage Sensitive Relay

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AA Ignition #ad - This dual battery isolator is also built to withstand extreme weather environments, vibration and is water resistant. Fits a wide variety of vehicles - being the computer age that it is today, a lot of accessories, tools and gadgets that runs on electricity are essential in our everyday living or hobbies. Dual battery isolator kit - enables your accessories to run from a separate battery while the engine is not running on your vehicle while keeping your main battery charged and your vehicle always ready to go and start when you want it to.

This dual battery isolator kit with printed installation instruction manual gives you the power for your recreation without needing to worry about getting home after. Avoid getting stucked after your recreation by purchasing this dual battery isolator kit from AA Ignition. Premium rugged construction - this dual battery isolator kit is all you need to charge a dual battery system. If the part ever fails on your truck, ATV, RV, SUV, UTV or Boat simply contact us for a replacement.

Complete kit with printed installation manual - this dual battery isolator kit manufactured by AA Ignition is a complete kit which includes the Isolator or Relay, copper lugs, battery terminals, battery Cables, heat shrinks, cable ties and a printed instruction manual. This dual battery isolator kit features 12 Volt 140 Amp Voltage Sensitive Relay Isolator and includes all the bits and pieces needed for a complete installation. Lifetime warranty - this 12v 140 amp dual battery isolator kit comes complete with a lifetime warranty.
BrandAA Ignition #ad
ManufacturerAA Ignition #ad
Part NumberGWA449
WarrantyLifetime Warranty

7. HORSMILE

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UTV, SUV, ATV, Complete VSR Double Battery Automatic Charger, ATV, Fits Trucks, Boats & More, Upgraded, Dual Battery Isolator Kit, HORSMILE 12V 140Amp Voltage Sensitive Relay & Wiring Cable Kit

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HORSMILE #ad - Voltage sensitive relay - the automatic 140 amp dual battery isolator is all you need to charge Two Battery Systems. This dual battery isolator is also built to withstand extreme weather environments, vibration and is water resistant. Buy with confidence - every 140 amp dual battery isolator is backed by an industry leading 12-month Warranty.

Voltage sensitive Relay VSR cuts in at 13. 3 volts and cuts out at 12. 8 volts to ensure your primary battery is always charged and ready to start your vehicle. If you are not 100% satisfied with your purchase, Simply Take Advantage of the "No Questions Asked, 30-Day Money Back" Guarantee. It features a voltage sensitive chip ensuring your primary battery is always ready for your vehicle to run. Rugged durability -this dual battery isolator kit is all you need to charge a dual battery system. Easy to install - no alternator or ignition connection needed, connectors, including leads, zip ties, screws, You don't need any additional components to complete installation as everything is included in the kit, and more.

It's like having two separate power sources for each battery while only having one alternator! Fits a wide variety of vehicles - this dual battery isolator kit with printed installation instruction manual gives You the Power for Your Recreation Without Needing to Worry About Getting Home After. 12v, suitable for 12v 4wd, marine, 140A, Truck, 12.8v cut-out Voltage, 13.
BrandHORSMILE #ad
ManufacturerHorsmile #ad
Height2.09 Inches
Length2.64 Inches
Width2.64 Inches
Part NumberSR50669-12CM

8. MiKaFex

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MiKaFex Dual Battery Isolator Kit Led Digital Panel Voltage Monitor,Voltage Sensitive Relay VSR,Fused Relay Switch Relay HarnessFor ATV UTV, HY034

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MiKaFex #ad - The voltage sensitive relay VSR cuts in at 13. 3 volts and cuts out at 12. 8 volts. It meets or exceeds oem standards and has been factory tested. Buy direct: our dual battery isolator kit. Ensures your main battery is always charged and ready to start your vehicle.

Lifetime warranty:once there is a problem with the product, contact us here to solve it perfectly for you, without worrying about quality problems. Applicable: this battery isolator works almost anywhere for ATV, UTV, Boats, truck, RV's,marine vehicle, caravan. Premium products: our battery isolator has a waterproof rating of ip65, round panel voltage to monitor your vehicle's 2 battery packs in real time to remind you to charge or replace them in time to better avoid battery depletion when starting your car engine, LED digital dual voltmeter, and even to meet your off-road needs in dusty, coils made of thickened heat resistant copper wire, wet and unexpected extreme weather conditions.

It's like having two separate power sources for each battery and only one alternator. Product content: 1*smart battery isolator with screws 1*blue digital double voltmeter 丨 1*relay 12v 40a 丨 2* red cable l300mm丨1*Black Groud Cable L600mm 丨1* Greed and Grey Cable L2350MM 丨3*Marine Battery Terminal 丨3* Female Spade Connector 丨 10* Cable Tie.
BrandMiKaFex #ad
ManufacturerHangZhan #ad
Part NumberHY034
ModelHY034

9. Xscorpion

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200 AMP Heavy Duty Dual Auxiliary Battery Isolator Copper Cables Complete Kit

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Xscorpion #ad - One 4 foot high quality 4 gauge 100% OFC copper cable to connect main/starting battery to the other post of the battery isolation relay. It does not create voltage drop to the second battery like conventional isolators. Two gold plated agu fuse holders with two 100 amp gold fuses to fully protect both batteries and all vehicles electrical components.

One 10 foot superior quality, heavy duty cable assembly utilizing 4 gauge 100% ofc copper. Relay 'closes' with key or switch engine 'on' connecting both batteries to charging system, and 'opens' with key or switch 'off' to isolate main / start battery from any load that can discharge main battery. One 20 foot red & black 16 gauge OFC copper cable. Two #10 spade/lugs to connect to the battery isolation relay and two quick splice connectors to connect switched key/ignition 12 volt positive and ground from vehicle to small posts on battery isolation relay.

Switching power: 10-16VDC. Engine start/ run loads also attach to this post. Great for isolation a second battery making it dedicated to the stereo system, starter, or additional electronics. Four 4 gauge gold ring terminals 3/8” opening with matching red rubber protective boots. Draws less than 1 amp when on.
BrandXscorpion #ad
ManufacturerXscorpion #ad
Part NumberRL-KIT2