What do I need to be able to use as a switch between batteries and a 2000 watt inverter?

If all you want to do is disconnect/connect the batteries from the inverter remotely, you need a 12v switched source to the coil and a ground. It is just a single pole single throw switch.

The note "The working time could be around continuous four or five hours , stop it and then use it." What if I have a 8 hour road trip?

I took a road trip 24hrs one way drove 18 hrs the first day 6 hrs the second day then turn around 4 days later repeated in the middle of summer with no problem the relay i replaced was the same make and model butI probably not the original in my 1995 Chevy conversion van relay is for charging my back battery also left it running for 8hrs plus in 90- 100 degrees so my pets saying cool inside hope this helps

Can us you be used for a plow

I believe this should work for a plow setup. Just double check the amp draw from the plow’s specs.

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500 AMP Battery Isolator Relay

Product ID: 123043634

Details

Connector Type
Screw
Contact Material
Copper Silver
Contact Type
Normally Open
Current Rating
80 A
Mounting Type
Screw Mount

⚡80A continuous current

🔋12V continuous duty

🔥150A surge max amps

438 kr

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Description

⚡ Power your adventure with unstoppable 80A relay precision!

BUILT TO LAST - Engineered for 100,000 mechanical cycles, delivering unmatched durability for long-term reliability.
SURGE READY STRENGTH - Withstands surges up to 150 amps, ensuring your vehicle or boat powers through peak demands effortlessly.
POWERHOUSE PERFORMANCE - Handles a robust 80 amps continuous current to keep your systems running smoothly without a hitch.
PLUG PLAY INSTALLATION - Includes heavy-duty terminals and insulated caps for quick, secure setup—perfect for trucks, RVs, and boats.
SEAMLESS BATTERY ISOLATION - Automatically isolates dual batteries to protect your starting charge and optimize power management.

The MaySpare 80-Amp 12V Continuous Duty Solenoid Relay is a high-performance battery isolator designed for trucks, boats, and RVs. Featuring copper contacts with silver pins, it supports continuous 80A current and surges up to 150A, with a lifespan of 100,000 mechanical cycles. This relay ensures automatic switching and protects your starting battery charge, making it an essential upgrade for reliable power management in demanding environments.

Specifications

ASIN	B07MV4WJ7K
Best Sellers Rank	#23,511 in Automotive ( See Top 100 in Automotive ) #5 in Automotive Replacement Starter Solenoids
Brand Name	MaySpare
Coil Resistance	18 ohm
Coil Voltage	12 volts
Connector Type	Screw
Contact Current Rating	80 A
Contact Material	Copper Silver
Contact Type	Normally Open
Current Rating	80 A
Customer Reviews	4.5 4.5 out of 5 stars (471)
Item Highlight	High Current Starter Relay Sliver Pins,Protect Starting Charge While Running Car Audio, Automatic Switching For Truck,Boat,Rv
Manufacturer	May Spare Parts
Maximum Switching Current	1 A
Minimum Switching Voltage	13 volts_of_direct_current
Model	US-4t500A
Mounting Type	Screw Mount
Number of Items	1
Operation Mode	Continuous Duty
Part Interchange Info	SGP38,6C017,120-901,120-105751,120-105751-6,120-901S1
Part Number	US-4t500A
Specification Met	OEM
UPC	754111153130
Upper Temperature Rating	80 °C
Wattage	2000 watts

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438 kr

Duties & taxes included

In stock

Sold byAmazon DenmarkDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Denmark.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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