The Best 12V Battery Isolator of 2022 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best 12V Battery Isolator of 2022. Check our ranking below.
2,919 Reviews Scanned
Rank No. #1
Ampper 12V 140Amp Dual Battery Isolator, Battery Voltage Sensitive Relay (VSR) Smart Battery Isolator for Car, Vehicle, RV, ATV, UTV and Boat
- Purpose: this voltage sensitive relay is design for two battery systems (SUITABLE for Acid-Lead batteries, NOT SUITABLE for Lithium batteries), allow to having two separate power sources while charging by one alternator, it's all need to charge and isolate two battery systems.
- Primary Battery Protected: cuts in at 13.3 volts and cuts out at 12.8 volts. Ensure your primary battery is always charged and ready to start your engine, the secondary will be charged after the primary battery's volts exceed 13.3 volts.
- Heavy Duty: this voltage sensitive relay is heavy built to suitable for almost anywhere even off-road, which is water resistant, shock resistant, dust proof and withstand unexpected extreme weather environments.
- Compatible: used for DC 12 V two battery systems isolate and charge, universal used for car, vehicle, RV, ATV, UTV and boat, also two battery electrical equipment.
- Easy to use: this VSR comes with mounting plate and 4 bolts for install. 100% SATISFACTION: no reason for return or change.
Rank No. #2
Stinger SGP32 200 AMP Battery Relay Isolator and Relay
- 200 AMP Battery Isolator and Relay
- Prevents primary battery discharge
- Maximum current transfer
- Extends battery life
- Universal 12V Applications
Rank No. #3
Mata1 Dual Battery Isolator Kit 12V 140Amp IP-67 Waterproof Rating VSR (Voltage Sensitive Relay) Smart Car Charger for All Automotive Land or Marine Vehicles
- RELIABLE POWER SOURCE - Get a reliable power source for all on-road travels and off-road expeditions with a smart dual battery isolator; Keep your main battery charged and engine running to ensure your automobile never run out of power in remote areas again
- UNIVERSAL COMPATIBILITY - Power up any ground or marine vehicle including ATVs, boats, cars, mini-vans, trucks, RVs, and yachts; Perfect versatile solution for all automotive power needs
- ALL-WEATHER RESILIENT - Explore any environment with confidence with the IP-67 waterproof rating dual battery isolator; Designed to perform well and stay resilient in even the toughest weather conditions and terrains
- HEAVY-DUTY - Manufactured using premium-grade polyamide 66 and copper PVC; Mata1 endeavours to provide you a robust device that can withstand the test of time and provide you lasting performance
- EASY INSTALLATION w/ COMPLETE KIT - Compact design (2.7” x 2.7” x 2”) that fits easily in your automobiles barely taking any space; Enjoy hassle-free installation w/ a complete isolator kit including cables, lugs, terminals, and instructions
SaleRank No. #4
500 Amp Battery Isolator for Mobile Audio Relay Continuous Battery Isolator, 12v Battery Disconnect Relay 500A Relay and Isolator
- 500 AMP BATTERY ISOLATOR - Perfect for any application with multiple batteries that need to be isolated including Marine, Mobile Audio, Off-Road, Power Sports, etc. | battery disconnect relay is used to isolate the second battery which powers audio, visual navigation, or other equipment.
- POWERFUL FUNCTION - 12v battery isolator can continuously power handling 500 amps at 12V and handling of 700 amps at surge power | Doesn't create a voltage drop to your second battery unlike common isolators do. battery isolator 500 amp with a maximum current transfer, power on demand.
- ELIMINATES BATTERY DRAIN - Normally, when two car batteries are connected in parallel, they are easy to charge and discharge each other | The relay battery isolator stops the battery bank from getting power from each one, eliminating that negative effect | Reducing the natural consumption of batteries after power off, lengthens the life of the primary battery.
- FEATURE- Battery isolator solenoid is made of high-quality materials, excellent performance, and durability. Easy to install and start up immediately.
- ONE YEAR SERVICE - The Mobile Audio Continuous Relay comes with 1 Year Warranty | Any problem please feel free to contact us for a replacement.
SaleRank No. #5
Dual Battery Isolator 12V 140Amp, Voltage Sensitive Relay VSR, Compatible with RV Marine Car Vehicles Truck Caravan Off-Road Camper Yacht，Not Fit for Lithium Batteries
- 【Wide Compatibility】——This battery isolators are small and suitable for almost anywhere, for ATV, UTV, Boats, RV's，marine vehicle, truck, caravan
- 【Working Voltage】——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 run your vehicle
- 【Function】——With the engine running the VSR will engage when the starting battery reaches 13.3 Volts and the LED light will illuminate. This means that both batteries are now linked and the system is working.Once you turn off your vehicle the system will disengage the two batteries as it reaches 12.8 Volts,leaving your main battery safe to start again
- 【Important Note】——When connecting accessories to your second battery ensure they are fused within 0.98FT
- 【12-MONTH Warranty】——We have exquisite craft, strict quality control along with excellent after-sales service. That is why our products are worthy of your purchase
SaleRank No. #6
Spartan Power Smart Dual Battery Isolator 12V 140A Voltage Sensitive Relay VSR for Vans, Trucks, RVs, Motorhomes, ATV, UTV, Boats, Off Road Vehicles
- Stay Prepared: The Spartan Power Dual Battery Isolator is a smart battery isolator that helps you stay prepared for any situation; It allows you to run two batteries simultaneously, protecting and maintaining the two-battery system while optimizing the charge
- Versatile: Our VSR Battery Isolator can be used to protect any 12 Volt battery; It eliminates the possibility of running the battery out and keeps it fully charged for when you need it most
- Simple to Use: This Dual Battery Isolator is easy to install and operate; Simply connect the two batteries to the isolator and it will efficiently transfer the charge from one battery to another, saving you time and trouble
- Safe: With the Dual Battery Isolator, you never have to worry about overcharging or shorting out your car’s electrical system; It is designed to be safe and reliable, keeping your car running smoothly
- Giving Power to The People: Helping people arm themselves with the right tools and accessories, Spartan Power manufactures ultra-high quality, Made in the USA battery cables every day in Reno, Nevada; Trusted by professionals, enthusiasts, and DIYers everywhere
SaleRank No. #7
Dual Battery Smart Isolator DEWINNER - VSR - Voltage Sensitive Relay, 12V 140 Amp Specially Designed for ATV, UTV, Boats, RVs, Campers 5th Wheels Off Road Vehicles Rhino (12V Isolator)
- Easy to Install: No alternator or ignition connection needed. If you want additional components to complete installation, please click "DEWINNER dual battery isolator kit".
- VOLTAGE SENSITIVE RELAY: DEWINNER Automatic 140 Amp Dual Battery Isolator is all you need to charge Two Battery Systems. 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. It's like having two separate power sources for each battery while only having one alternator! (Only suitable for lead-acid batteries versus lead-acid batteries)
- FITS A WIDE VARIETY OF VEHICLES -Like Having Two Separate Power Sources,The 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. Suitable for 12V 4WD, marine, truck, caravan & camping applications
- WHAT YOU GET: SingleIsolator: 140 Amp Smart Battery Isolator; Easy-to-follow directions for the novice DIYer.
- BUY WITH CONFIDENCE: Every 140 Amp Dual Battery Isolator is backed by an industry leading 12-month warranty. If you are not 100% satisfied with your purchase, simply take advantage of the No Questions Asked, 30-Day Money Back Guarantee!!
Rank No. #8
Stinger SGP35 500-AMP Relay and Isolator , Black
- 500 AMP High Current Relay/Isolator
- Prevents primary battery discharge
- Power on demand
- Extends battery life
- Universal 12 volt applications
Rank No. #9
Stinger SGP38 80-AMP Battery Isolator and Relay,BLACK
- 80 AMP Battery Isolator and Relay
- Prevents primary battery discharge.80A constant 150A peak
- Maximum current transfer
- Extends battery life
- Universal 12V Applications
SaleRank No. #10
MaySpare 12V 140Amp Voltage Sensitive Relay VSR Double Battery Automatic Charging Relay Dual Smart Battery Isolator
- 12V, 140A, 13.3V cut-in voltage, 12.8V cut-out voltage,; Package Include All the Bits and Pieces Needed for a Complete Installation
- Working Voltage: Having Voltage Sensitive Chip,Rely Cuts in at 13.3 Volts and Cuts out at 12.8 Volts to Ensuring Primary Battery is Always Ready for Vehicle to Run.
- Fuction:Like Having Two Separate Power Sources,The 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.
- Compatibility: This battery isolators are small and suitable for almost anywhere, for ATV, UTV, Boats, RV's，marine vehicle, truck, caravan
- LIFETIME WARRANTY :100% High Quality and Enjoy Full Life Warranty, Free Exchange
Last update on 2023-11-07 / Affiliate links / Images from Amazon Product Advertising API
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