Top 8 Voltage Sensitive Relay 24V – Automotive Replacement Battery Switches

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1. MaySpare


Truck, 250 AMP Dual Battery Smart Isolator Universal 12V/24V Voltage Sensitive Relay Intelligent Dual Battery Isolator for Car, Battery Starter Controller Heavy Duty Power Switch Charge Relay, ATV

MaySpare #ad - Automatically connection voltage delay 5 seconds : 13. 5v-16v12v working voltage;27v-32v24v working voltage/ Automatically Disconnect Voltage Delay 5 seconds : 12. 5v, disconnect immediately if it is below 12.

5 v. Voltage: high current 250 amp/ continue current: 250A normally open/ Universal application 12V/24V, LCD display voltage of two batteries. No need to discharge your vehicle's original battery by trying your new equipment off-road. Easy to install, just power wire in, power wire out. Function: 250amp battery isolator is a primary battery saver, which used to combine two batteries when an alternator is charging engine running and isolate them when not charging engine off so you can still start your vehicle.

Designed with small size, rvs, utvs, off-road vehicle, atvs, boats, can fit anywhere!/ Wide Use on a variety of vehicles--12V/24V Trucks, Vans, Caravan & Camping Applications.
BrandMaySpare #ad
ManufacturerMaySpare #ad
Part NumberDual Battery Relay



RVs, Designed for Trucks, Split Charge Relay 24V, UTV, excavators, Campers 24V Isolators, Dual Battery Intelligent Isolator VSR 24V 100 Amp Voltage Sensitive Relay, Boats, ATV

DEWINNER #ad - Voltage sensitive relay: dewinner automatic 100 Amp Dual Battery Isolator is all you need to charge Two Battery Systems. If you are not 100% satisfied with your purchase, simply take advantage of the No Questions Asked, 30-Day Money Back Guarantee!! Voltage sensitive relay vsr cuts in at 27.

4 volts and cuts out at 25. 6 volts to ensure your primary battery is always charged and ready to start your vehicle. Suitable for 24v 4wd, marine, caravan & camping applications WHAT YOU GET: SingleIsolator: 100 Amp Smart Battery Isolator; Easy-to-follow directions for the novice DIYer. What you get: singleisolator: 100 Amp Smart Battery Isolator; Easy-to-follow directions for the novice DIYer. Buy with confidence: every 100 amp dual battery isolator is backed by an industry leading 12-month warranty.

Easy to install: No alternator or ignition connection needed. It's like having two separate power sources for each battery while only having one alternator! Fits a wide variety of vehicles -like having two separate power sources, truck, 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.
ManufacturerDEWINNER #ad
Part NumberDE-C



Voltage Sensitive Relay 125Amp 12V / 24V Automatic Switching Dual Battery Isolator Kit Automatic Charging Relay for Trolling Motor Truck UTV Boat RV Camper Van Trailer VSR

HIMOZEAN #ad - Dual battery isolator for solar system RV camping van trolling motor truck UTV boat trailer dual battery system. Highlights the battery isolator inputing power:dc 12v / 24v automatic switching, built-in LED indication ON when VSR engages, No voltage drops comparing to battery isolator diodes 06v, automatically combines two batteries when charging and isolates the two batteries when not charging, Easy to fix your battery charging issues.

Quality warranty this is dual battery isolator is ce ip67 certified, 4X black heat shrink tube, 4X red heat shrink tube, 2X connectors, 2x wire Lugs, Packge include:1X battery isolator 12v / 24v, 1X user manual. Current / open voltage : dc 13. 3v / voltage the voltage sensitive relay continuous current rating |125a, power consumption |13mA Standby, 270mA Engage, 0mA Storage Mode.

Combine / 12. 8v @ 12v, intermittent current Rating|140A, DC 26. 6v / 25. 6v @ 24v. Quality material&easy to install the battery automatic charging relay has robust glass fiber reinforced nylon enclosure, Terminal Studs M6 1/4", Connect Start Battery to the stud terminal with Red painting main sensing terminal, and connect the house battery to other stud terminal on the VSR. The d-vsr will sense voltage from either terminal. Connect the black cable to the DC Ground.
ManufacturerHIMOZEAN #ad

4. Ampper


RV, Battery Voltage Sensitive Relay VSR Smart Battery Isolator for Car, Vehicle, Ampper 24V 100Amp Dual Battery Isolator, ATV, UTV and Boat

Ampper #ad - 100% satisfaction: no reason for return or change. Compatible: used for dc 24 v two battery systems isolate and charge, universal used for car, RV, ATV, UTV and boat, vehicle, also two battery electrical equipment.

Primary battery protected: cuts in at 27. 4 volts and cuts out at 25. 6 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. Easy to use: this vsr comes with mounting plate and 4 bolts for install. 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.

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 27. 4 volts.
BrandAmpper #ad
ManufacturerAmpper #ad
Height2.5 Inches
Length3 Inches
Weight8 ounces
Width3 Inches
Part NumberAm-VSR2101

5. UCkasayfy


Voltage Sensitive Relay VSR,Compatible with RV Marine Car Vehicles Truck Caravan Off-road Camper Yacht,Not Fit for lithium batteries, Dual Battery Isolator 12V 140Amp

UCkasayfy #ad - 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.

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. 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. Wide compatibility——this battery isolators are small and suitable for almost anywhere, truck, RV's,marine vehicle, Boats, for ATV, UTV, caravan.

Important note——when connecting accessories to your second battery ensure they are fused within 098ft. Function——with the engine running the vsr will engage when the starting battery reaches 13. 3 volts and the LED light will illuminate.
BrandUCkasayfy #ad
ManufacturerUCkasayfy #ad
Part NumberBR001-12V

6. MaySpare


MaySpare 12V 140Amp Voltage Sensitive Relay VSR Double Battery Automatic Charging Relay Dual Smart Battery Isolator

MaySpare #ad - 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, truck, Boats, RV's,marine vehicle, UTV, caravan. Lifetime warranty :100% high Quality and Enjoy Full Life Warranty, Free Exchange. 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. 12v, 12. 8v cut-out voltage, 13. 3v cut-in voltage, 140a, ; package Include All the Bits and Pieces Needed for a Complete Installation.
BrandMaySpare #ad
ManufacturerMaySpare #ad
Part NumberUS-140 Isolator

7. iRhapsody


5 Pack 40/30 AMP 12V DC Waterproof Relay and Harness, Heavy Duty 12 AWG Tinned Copper Wires, 5-PIN SPDT Automotive Relay

iRhapsody #ad - Excellent waterproof and dustproof ability, high quality in any weather conditions. 16 awg tinned copper wires for Pin 85, Pin 86. 12v dc waterproof 5 wire relay max 14v. 40 amp / 30 amp High switching capability. Length: 5. 1in. Length: 5. 1in. 12 awg tinned copper wires for pin 30, Pin 87, Pin 87a. Nominal coil voltage: 12 v dc; coil power: 1. 8 w; coil resistance: 80 Ω; must operate voltage: 6~8 V DC; Must Release Voltage: 06~3. 6 v dc; maximum applied Voltage: 15. 6 v dc.
BrandiRhapsody #ad
ManufacturerIRHAPSODY #ad
Height1.7 Inches
Length7.85 Inches
Weight1.1 Pounds
Width1.6 Inches
Part NumberIY-5PinRelay-5

8. Victron Energy


Victron Energy SmartShunt 500 amp Battery Monitor Bluetooth

Victron Energy #ad - Incorrect installation can be hazardous, Please consult a licensed professional and follow all applicable electrical codes during installation. Your phone can be connected and acts as a display.

The smartshunt is equipped with bluetooth, a VE. Direct port and a connection that can be used for: monitoring a second battery, midpoint monitoring or a temperature sensor. The smartshunt connects via bluetooth to the VictronConnect App on your phone/tablet and you can read out all monitored battery parameters - like state of charge, time to go, historical info and more. The smartshunt is a good alternative for a BMV battery monitor, especially for systems where battery monitoring is needed but less wiring and clutter is wanted. The smartshunt is an all in one 500 amp battery monitor.
BrandVictron Energy #ad
ManufacturerVictron Energy #ad
Weight0.88 Pounds
Part NumberSHU050150050