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Wztepeng 500 Amp Battery Isolator 12V Relay 12Volt Battery Disconnect Relay and Isolator Compatible with Mobile Audio

  • Based on 41 reviews
Condition: New
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Features

  • Battery Isolator:Battery isolators are suitable for applications that need to isolate multiple batteries, such as mobile audio, marine, powered sports, etc. It is used to isolate batteries that power AV, navigation, etc. It allows the second battery to be fully dedicated to the sound system and does not create a voltage drop like common isolators tend to do. The isolator will draw less than 1 amp when your vehicle is powered on.
  • Extends battery life:its a must for daily driver systems,This 500 amp continuous duty relay does not have the voltage drop that a solid state battery isolator has and does a much better job of charging auxiliary batteries through.
  • Feature:Made of high-quality materials, excellent performance and durable.Easy to install and start up immediately.
  • Package Include:1 * 500 Amp 12V Mobile Audio Relay Battery Isolator
  • Warranty: For any reason, if you are not satisfied with your purchase, please contact us directly. We offer Half a year warranty, 100% satisfaction guarantee.

Contact Type: Normally Open


Current Rating: 500 Amps


Brand: Wztepeng


Operation Mode: Battery


Coil Voltage: 12 Volts


Package Dimensions ‏ : ‎ 5.31 x 4.17 x 3.46 inches; 9.88 Ounces


Item model number ‏ : ‎ HH073


Date First Available ‏ : ‎ January 17, 2022


Manufacturer ‏ : ‎ Wztepeng


Best Sellers Rank: #442,952 in Automotive (See Top 100 in Automotive) #457 in Automotive Replacement Accessory Power Relays


#457 in Automotive Replacement Accessory Power Relays:


Customer Reviews: 3.6 3.6 out of 5 stars 41 ratings


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • custom instal in harley davidson electra glide as a battery kill switch for the ground cable
super duty 500amp its a over kill for aplication
Reviewed in the United States on March 24, 2023 by mitchiel

  • One of the smaller terminal post snapped
I was installing it and barely tightened the 12v turn on wire and the post snapped right off, pretty upsetting because now I have to go return this and buy a good one like I wanted to. don’t waste your time with crap like this. Get a good brand
Reviewed in the United States on June 17, 2023 by SUSAN ROBERTS

  • Emergency disconnect relay
I use it for a quick disconnect for my solar inverter and is still working everyday . 400 amps is no problem but relay is very hot and do not touch it when on .
Reviewed in the United States on August 10, 2022 by dickson

  • 6 months?
Worked for 6 months..all of a sudden I'm having bass issies..I tested the unit..has 14.3 going to 1st terminal..so car starting battery is good....second terminal reads 10v and goes down from there..with the car running...means second battery is not getting charged.. solenoid is not working dammit...sent this to the seller..am awaiting a reply....none yet... bought this for large car stereo (second battery)..took quite a while to finally install..batteries (needed two) got quite expensive and had to budget for them..finally got it together and installed...been 6 months and started having sound issues..traced the problem to..guess what...your isolator switch.now before i buy a second one because they are cheap,id like some assurance that this isnt a piece of crap and it was a fluke that it failed.because if this fails again i will CRUCIFY you in a review..i wont hold back..tell the truth..should i buy elsewhere or is this a good product? too harsh? ... show more
Reviewed in the United States on June 25, 2023 by Cheffdave

  • Nice
Grate product,good quality and affordable. Product arrive safe and on time.
Reviewed in the United States on February 19, 2023 by Gautier

  • Purchased for a winch
I needed a relay to cut power to a winch and this works. Easy to setup.
Reviewed in the United States on August 10, 2022 by Len Len

  • Malfunction Relay
Purchased this product 4months ago and it barely works now sometimes chargers both batteries sometimes chargers one battery and sometimes chargers neither battery so buy this at your own risk
Reviewed in the United States on August 16, 2023 by djai

  • Relay is mechanicaly faulty.
Contacts doesnt always "clap" together as it should and consequently dont give contact. If you lightly tap on casing, relay claps like it should. Sumarum: chinese garbage! Voltage on coil is correct and matches 12V coil rating. I also tested reverse polarity, the result was the same.
Reviewed in the United States on September 20, 2022 by Electrical enginer

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