There is a duty cycle rating for winches. Like was stated, will tell you how long you can run the winch and how long to let it cool. Usually expressed as a percentage. Electric winches are not 100% duty cycle, like hydraulic winches. They must be allowed to cool, but can still operate without the motor running. But, just for an emergency extraction. No running motor means no stator charging the battery to replenish the charge you are using.
Warn truck winches I've seen have duty cycles that vary from high 50's to high 70's and Harbor Freight may only be 5%.
The higher the load on the motor, the worse stuck you are, the quicker the motor gets hot.
A good basic rule is...... If the motor is too hot to hold you hand against it, it needs to be allowed to cool down.
Many Warn truck winches have thermometric hand held remotes, even wireless, that indicate motor temps and will even automatically shut down the winch to prevent operator error.
Snatch blocks will essentially double your pulling capacity, assuming you're battery system has the available current, amps.
It slows your line speed to half. But, decreases the strain on your line by half, and decreases the strain on your motor.
You have to pull out more line, but the closer you get down to the wraps on the drum, itself, the more pulling power and efficiency you gain.
These newer snatch blocks using synthetic ropes are stronger than steel and easy to use. I carry both. Many sources sell them. Factor 55 tests all products to failure. They show this on their YouTube site. 100% American designed and manufactured and material sourced company.
Just a PS... You want to see crazy winch mods, go to YouTube, search for Gigglepin, dual winch motors, Red Hornet winch. Based on the Warn 8274 which which is an 8000 pound, 2 direction in/out, and came out in 1974...... They run two motors and compete in winch competitions.
I have an original Warn 8274 from 1976, cost $599, the 50th anniversary 8274-50 is over $2000, and the 70th anniversary 8274-70 is over $2500. I could not sell mine, it never failed me.
Sorry for the long post.
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