The 4 best isolation relay 12v rv 2022

Finding the best isolation relay 12v rv suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.

Product	Features	Editor's score	Go to site
	Blue Sea Systems Add-A-Battery Kit		Go to amazon.com
	Smart Dual Battery 140A Isolator (VSR Voltage Sensitive Relay) for Auto/Boat/RV		Go to amazon.com
	GS Power 150 amp Dual Auxiliary Battery Charge Isolator Complete Wiring Kit w/ 4 Gauge CCA Cable (20 FT), Isolation Relay, Ring Terminal, Fuse, Fuse Holder for Off Road Automotive ATU, UTV, RV, RZR		Go to amazon.com
	JayCorp Dual Battery Isolation Kit with 140A Smart Battery Isolator (VSR Voltage Sensitive Relay)		Go to amazon.com

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1. Blue Sea Systems Add-A-Battery Kit

Feature

Charge two batteries at or away from the dock
12V 10a - 2 Bank AC battery Charger. Integrated 65a automatic charging Relay allows charging off DC charging source (engine alternator). includes remote LED indicator
Includes M series dual circuit plus battery switch (pin 6011). simultaneously switches two battery banks while maintaining battery isolation. Has emergency Parallel for jump Starting
Compatible battery types: flooded lead acid, agm, tppl/agm+ (thin plate pure lead)
Universal AC input voltage: 90-265v AC. Battery link Charger: Ip67, battery switch: Ip66

Description

The Mini add-a-battery plus simplifies switching with a dual circuit plus battery switch and allows you to charge at or away from the dock with the battery link charger. The 10A, 2 bank, charger includes an integrated 65A acr for automatic charging of 2 battery banks off a single engine alternator. The battery link charger is ip-67 waterproof and includes battery temperature compensation, start isolation, and comes with an external indicator remote. Battery temperature compensation allows you to charge a battery based on its temperature to ensure it's always receiving safe and optimal charging voltages. Start isolation ensures that sensitive electronics are not subjected to the voltage sags from engine cranking. The external indicator remote allows a customer to understand the charge status of their system at or away from the dock. By integrating switching and AC/DC charging the Mini add-a-battery plus makes boating simpler and safer. Reducing the possibility of someone being stranded with a dead battery. For use in 12V applications only.

2. Smart Dual Battery 140A Isolator (VSR Voltage Sensitive Relay) for Auto/Boat/RV

Feature

12V 140A smart isolator with Cut-In:13.4V, Cut-Out:12.9V
Easy 3 wire connection at the battery. No need to bypass existing alternator wiring
The smart isolator has no voltage drop. Conventional diode isolators incur a minimum of 0.6 volt drop
Compact 2.5 inch by 2.5 inch by 2 inch size - No large heat sink
Easy to install anywhere - Water and dust resistant

Description

A smart isolator is the ultra-simple and most technologically advanced method of automatic battery isolation. These units can be installed between batteries with a common ground to automatically control the charging process to the batteries but continue to provide isolation when a charging source is unavailable. The small size and rugged construction of these units allow for quick simple installation for even the most novice DIYer. The smart isolator is also "Dual Sensing" which senses the charge of both batteries. If either battery is receiving a charge, e.g. a battery charger is connected to the auxiliary battery; the relay will engage and charge both batteries. The advanced technology always insures that the first battery is fully charged (13.4v) before connection is made to the second battery. This prevents problems that may result from your charging source being too low in amps to charge all batteries as once. If placed in linear sequence between each battery the isolator units can provide proper charging for several batteries in a multiple battery setup such as in larger boats that may have 2 or more house batteries. How it works: The smart isolator allows two batteries to be charged at the same time. When the engine is started and either battery reaches 13.4 volts, the relay engages, allowing two battery banks (start and accessory) to be charged simultaneously. When the voltage drops below 12.9 volts (eg the engine is stopped), the relay disengages, separating the batteries. This system eliminates the possibility of draining the start battery and protects sensitive electronic equipment powered from the house battery from harmful engine start up spikes.

3. GS Power 150 amp Dual Auxiliary Battery Charge Isolator Complete Wiring Kit w/ 4 Gauge CCA Cable (20 FT), Isolation Relay, Ring Terminal, Fuse, Fuse Holder for Off Road Automotive ATU, UTV, RV, RZR

Feature

150 A (surge) / 80 A (constant) Battery Isolation Relay Kit is all you need for isloating a second battery in your vehicle to dedicate to stereo system, amplifier and starter
20 FT 4 Gauge Power Wire + 25 FT 16 Gauge Red / Black Copper Clad Aluminum (CCA)
See product description for additional parts included in the kit
Easy to installl. Prevents discharge of your main battery by drawing all 12 volt DC load from your auxiliary battery with engine off
Recharges both battery when your engine is running

Description

Battery Isolator Kit includes:
(1x) 150 amp (surge) / 80 amp (constant) battery isolation relay 10-16 VDC
Perfect for isolating a second battery dedicated to auxiliary electronics
Does not create voltage drop to the second battery
Draws Less Than 1 Amp When On
(1x) 20 Feet Red 4 Gauge cable CCA Copper Clad Aluminum
(1x) 25 Feet Red 16 Gauge cable CCA Copper Clad Aluminum
(1x) 25 Feet Black 16 Gauge cable CCA Copper Clad Aluminum
(2x) GOLD plated ANL 4 Gauge fuse holders
(2x) GOLD plated Battery Terminal (1x Positive, 1x Negative)
(4x) 4 Gauge GOLD Ring terminals (3/8" opening) with matching RED Rubber Protective Boots
(5x) 100 Amp Mini ANL Fuses to fully protect both batteries and all vehicle electrical components
(2x) Blue Wire Splice for 16 Gauge
(2x) Spade Terminal for 16 Guage

4. JayCorp Dual Battery Isolation Kit with 140A Smart Battery Isolator (VSR Voltage Sensitive Relay)

Feature

Suitable for 12V Marine, Off-Road Vehicles, RV, 12V Auto & Solar Systems
140 Amp Voltage Sensitive Smart Relay for Battery Isolation.
Priority Charging for Starting Battery.
Safe for Alternator Outputs up to 120 Amps.
Fully Automatic and can be installed anywhere with its 2.5" x 2.5" x 2" size. Water and dust resistant.

Description

This is a great kit for adding that 2nd or 3rd battery to your system in your car, boat, RV or whatever you wish. It utilizes the simplest and most advanced technology to keep all your batteries charged using the engine's electrical system but isolating the starting battery so you never get stranded. The great thing about these is that you don't have to reroute any alternator wires and they are fully automatic. Everything you need to do the job yourself. How it works: The dual battery kit allows for safe charging and separation of starting and auxiliary batteries in all 12V marine, auto, RV and solar applications. When the engine is started, the starting and auxiliary batteries are separated allowing only the starting battery to be charged. When the charge voltage reaches 13.4 volts on the voltage sensitive relay engages allowing both the starting and auxiliary batteries to be charged. This is indicated by the light in the top LH corner being illuminated. When the engine is stopped and the battery voltage falls below 12.9 volts the relay disengages separating the start and auxiliary batteries, at this point the indicator light will be out and the auxiliary battery continues to power any accessories without risk of draining the starting battery. The smart isolator also has Dual Sensing which senses the charge of both batteries. If either battery is receiving a charge, e.g. a battery charger is connected to the aux battery; the relay will engage and charge both batteries. The dual battery kit is easy to install and comes with all components and instructions required to complete the install. There is no need to cut into any factory wiring that may void manufacturer's warranty. Kit Includes: Includes: 1 - 140 Amp Voltage Sensitive Relay 1 - 19ft 6ga length of battery cable 1 - 3ft 6ga Ground cable 2 - Positive brass marine type battery terminals 1 - Negative brass marine type battery terminal Tinned copper lugs & heat shrink Cable ties Easy to follow instructions

Conclusion

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