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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🔋 Power Up Your Performance!

HIGH SURGE CAPACITY - Handle peak demands with a staggering 500 amps surge capability for those critical moments.
LONGEVITY GUARANTEED - Built to last with a mechanical cycle life of 100,000, ensuring reliability in every use.
POWERFUL PERFORMANCE - Experience a robust 80 amps of continuous duty, ensuring your systems run smoothly.
VERSATILE COMPATIBILITY - Easily replaceable with White Rodgers models, making upgrades a breeze.
COMPLETE INSTALLATION KIT - Includes all necessary terminals and caps for a hassle-free setup.

The MaySpare 80-Amp Relay is a high-performance solenoid relay designed for continuous duty applications. With a robust 80 amps of continuous current and a surge capacity of 500 amps, it ensures reliable power management for dual battery systems. Its impressive 100,000 mechanical cycle life guarantees longevity, while the included installation kit simplifies setup. Compatible with various models, this relay is the perfect solution for enhancing your vehicle's electrical system.

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