Top 10 Best Solenoid Battery Isolator Relays (2020 reviews)

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If you are looking for collection of best relay battery isolators for your daily usage , this page is just for you.

We have collected the most suitable relay battery isolators for your daily usage after deep investigation and comparative studies between 100’s of products. Our final set has reliable products and we also worked hard to maintain variety within our picks to accommodate personal preferences.

The Cole Hersee Solenoid Battery Isolator Relay is long-lasting, rigid and fits well with your daily usage like a dream. In addition, the relay battery isolator is part of the solenoid & relays product line for cole hersee. Make sure this fits by entering your model number. Lastly, the cole hersee solenoid battery isolator relay has collaborated on many basic industry standards and is a preferred supplier of over 2, 000 dependable vehicle products and accessories.


In This Article:


Top 5 Best Solenoid Battery Isolator Relays

#BrandRating
1Cole Hersee Solenoid Battery Isolator Relay – Best Overall 4.6
2Keyline Chargers Solenoid Battery Isolator Relay – Best Runner Up 4.6
3Wirthco Solenoid Battery Isolator Relay – Best Value For Money 4.4
4Online Led Store Solenoid Battery Isolator Relay – Best Budget 4.6
5Blue Sea Systems Solenoid Battery Isolator Relay – Best Feature: Quality Of Material 4.6


1. Cole Hersee Solenoid Battery Isolator Relay – Best Pick

Compared with other relay battery isolator in this category, the Cole Hersee Solenoid Battery Isolator Relay has a design with broader appeal. Littelfuse acquired cole hersee in 2010 to offer their customers a more extensive portfolio of products in the commercial vehicle market. To sum up, with 4.6 rating and more than 2512 buyers, the cole hersee solenoid battery isolator relay stands as the best choice.

Almost all buyers found that the relay battery isolator is made with robust terminals. Also, a few strongly agree that the relay battery isolator could have supplied brass, or better yet, copper nuts. In addition, a few strongly agree that the relay battery isolator is rated at 85 amps continuous duty so can handle a lot of power. In addition, the electrical posts on this relay started to rust due to hawaii’s high humidity. In conclusion, at the price, they believe that they got a steal of a deal with it.

Top Customer Quotes:

  • Bracket:straight; bracket mounting:holes 5/16 x 19/32 2-13/64 on center
  • This is part of the solenoid & relays product line for cole hersee
  • Installed on a 2016 yamaha adventurer 1 utility cart
  • This is mounted with a couple 1/4″ hex head bolts

2. Keyline Chargers Solenoid Battery Isolator Relay – Best Runner Up

Keyline Chargers makes beautiful and great relay battery isolator with classic and higher-grade materials. The Keyline Chargers Solenoid Battery Isolator Relay include installation wires to add to that it is great for extreme vibration applications as well. Make sure this fits by entering your model number. The 140 amp dual battery smart isolator comes with mounting plate and hardware.

Most importantly, the keyline chargers solenoid battery isolator relay

Most customers opine that the relay battery isolator okay as a battery isolator in conjunction with a dc to dc charger. In addition, they strongly agree that the relay battery isolator is easy to install, good directions. Also, they also found that the relay battery isolator is great solution for battery isolation. To sum up, most customers found the relay battery isolator suits best, and no one question it.

Top Customer Quotes:

  • This is achieved from basic grounding of the separate batteries only
  • Every 140 amp dual battery isolator is backed by an industry leading 12-month warranty
  • Have not used it yet (will update if rating changes)
  • A perfect fit under the hood to get close to your dual batteries

3. Wirthco Solenoid Battery Isolator Relay – Best Value For Money

We would, of course, be remiss if we didn’t mention Wirthco Solenoid Battery Isolator Relay for regular usage. The wirthco solenoidbattery isolatorrelay includes a mounting bracket and over-current and surge protected for vehicles with electronic systems. High-performance electronic isolator allows you to charge two batteries from a single alternator, and keeps the starting battery isolated from the second battery. Moreover, it is suitable for marine use (ip62).

The relay battery isolator is suitable for any vehicle with an auxiliary battery. Further, it includes mounting bracket that houses the 4″x4″x2″ isolator. Above all, the wirthco solenoid battery isolator relay is no manual override for starting battery.

Almost all buyers found that the relay battery isolator come in handy a couple of times already. In addition, they strongly agree that the relay battery isolator provides great peace of mind for ensuring the proper charging of the house battery bank. Further, a few say that the relay battery isolator come with something to cover the positive terminal’s. Also, this compact device has 3 connection points, main battery, secondary battery, and pre-wired ground. In short, most customers call the relay batteryisolator suits best, and no one question it.

Top Customer Quotes:

  • Water resistant (ip62) – suitable for marine use
  • This is best product for the money
  • This one has the alternator connect at the main battery
  • Here is the installation diagram for everyone

4. Online Led Store Solenoid Battery Isolator Relay – Best Budget

We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a cost-effective relay battery isolator. The Online Led Store Solenoid Battery Isolator Relay is exactly that – it’s a simple relay battery isolator that hits all the right notes. The online led store solenoidbattery isolatorrelay comes with a 1 year manufacturer warranty. , please call us toll free 1-855-led-online (1-855-533-6654). This 4 pin relay has a high current carrying capacity of 200 amperage of load at 14 volts dc, making it the perfect component to be used in a split charging setup.

Lastly, the online led store solenoid battery isolator relay is perfect for split charging or various automotive applications.

Most buyers found that the relay battery isolator is great value for a 200 amp 12vdc relay. And, they strongly agree that the relay battery isolator is great value for the price, and works as advertised. Moreover, they also found that the relay battery isolator has higher amp rated ones too. Moreover, the good is this relay is very quiet for a heavy duty unit, maybe it’s the thick housing but it is a lot quieter than the one i’m replacing.

Top Customer Quotes:

  • This can be used in both automotive and marine settings
  • All automobiles and devices equipped with a 12 volt dc power source
  • These relays are top of the line
  • This is a big version of a bosch type relay

5. Blue Sea Systems Solenoid Battery Isolator Relay – Best Feature: Quality Of Material

Blue Sea Systems line of relay battery isolator come in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. Further, the relay battery isolator allows temporary isolation of house loads from engine circuit during engine cranking to protect sensitive electronics from sags and spikes. Automatically combines batteries during charging, isolates batteries when discharging and when starting engines. Lastly, the Blue Sea Systems Solenoid Battery Isolator Relay is designed for 12 or 24 volt systems.

Most customers quickly discovered that the relay battery isolator maintains charge in both banks as necessary and disconnects bank connection to prevent total discharge of both banks. Moreover, a few strongly agree that the relay battery isolator features that allow for a few different types of wiring and set ups. Also, they strongly agree that the relay batteryisolator is great unit for multiple batteries. And, the sun goes down, the relay opens separating the batteries again.

Top Customer Quotes:

  • This system is going strong over a year later
  • This is bullet proof and works automatically or manually, just hit the switch
  • Supports high-output alternators up to 120 amperes
  • Installed recently, so far so good, super-solid build quality

Other Solenoid Battery Isolator Relays We Reviewed

We looked at 5 other Solenoid Battery Isolator Relays. Even though they didn’t make our 5 best Solenoid Battery Isolator Relays list, they’re the best of the best and each is still a great option. The information you’ll need to compare each one is included with the listing.

Products You May Be Interested In

Rareelectrical Solenoid Battery Isolator Relay

Rareelectrical Solenoid Battery Isolator Relay

Almost all customers found that the relay battery isolator is made with the highest quality components available. A few also found that the relay battery isolator comes with a full one year warranty.

Why We Like This:

  • This comes with a full one year warranty
  • This is made with the highest quality components available
  • Computer tested for consistent quality and unsurpassed reliability

Cost: $13.49

Mayspare Solenoid Battery Isolator Relay

Mayspare Solenoid Battery Isolator Relay

Almost all customers quickly discovered that the relay battery isolator include all the bits and pieces needed for a complete installation. A few say that this dual battery isolator is the only unit designed with cutting edge programming to deliver optimum performance.

Why We Like This:

  • This include all the bits and pieces needed for a complete installation
  • 100% high quality and enjoy full life warranty, free exchange
  • Lifetime warranty :100% high quality and enjoy full life warranty, free exchange

Cost: $75.99

Visit The Tutor Auto Store Solenoid Battery Isolator Relay

Visit The Tutor Auto Store Solenoid Battery Isolator Relay

Most customers quickly discovered that the relay battery isolator is made of 180°c copper wire, and the cover plate is nickel-plated to avoid rust. They strongly agree that the relay battery isolator is 14ω, capacity is 10.2w, max transient current can be 300a, but continuous working current recommend under 150a.

Why We Like This:

  • 【Item type】- 12 volt starter solenoid relay. Oem: 1114208, 1114218, 3635820, 1114223, 1114534, 1114547
  • Manufacturer says: our battery solenoid relay comes with 24 months warranty
  • You can return it to us if you don’t satisfy with the starter solenoid

Cost: $18.99

Pac Solenoid Battery Isolator Relay

Pac Solenoid Battery Isolator Relay

Almost all buyers quickly discovered that the relay battery isolator looks really good quality to add to that it is built to be ‘exactly that’. A few strongly agree that the relay battery isolator is great for isolating a second battery making it dedicated to the stereo system.

Top Customer Quotes:

  • Does not create a voltage drop to the second battery like conventional isolators
  • These are skinny and have very little thread and will strip somewhat easily
  • 200-amps at 12-volt continuous power handling

Cost: $47.96

Install Bay Solenoid Battery Isolator Relay

Install Bay Solenoid Battery Isolator Relay

Most customers agree that the relay battery isolator allows for longer battery life and control over which battery is being used. A few strongly agree that the relay battery isolator is made for 500 a plus.

Top Customer Quotes:

  • This is made for 500 a plus
  • To be a must for multi battery systems
  • Using them with 300a fuse for 12v winch on/off

Cost: $48.55

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