VEVOR
An electric tongue jack raises and lowers the trailer tongue with a switch instead of a hand crank. If your manual jack works for you, this is a convenience upgrade, not a necessity.
Trailer owners who hitch and unhitch often or find cranking hard.
VEVOR Electric Trailer Jack, 5000 lbs, Heavy Duty RV Electric Power Tongue Jack with 2 Way Connector, Manual Crank Handle & Weatherproof Jack Cover, 10"-28.3" Lift, for RVs, Trailers & Campers, Black (ASIN B0DTHDML14). Amazon's page has the current price, specs and reviews.
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Check current Amazon listing (ASIN B0DTHDML14).
Fine print: The Dude has not personally tested this product. The details on this page come from the Amazon listing and can change; check the listing for the current specs, price and availability.