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Cuts off power to the battery to avoid unwanted battery consumption
Connects to negative battery terminal only
Cuts off power to the battery to avoid unwanted battery consumption
Warranty: One-Year Limited Warranty
Shipping Weight: 0.250 lbs
The CURT towed battery disconnect switch for RVibrake makes it easy to cut power to your vehicles battery, helping prevent battery drain and unauthorized use. Its especially useful for flat towing, as many vehicles require the battery to be disconnected to avoid electrical issues while being towed. Beyond towing, this switch is great for cars, boats, trucks, and RVs that sit unused for long periods, helping extend battery life and ensure a reliable start when needed. Built for durability, the switch connects directly to the negative battery terminal and is made from high-conductivity zinc alloy with a corrosion-resistant brass-plated finish. Its rated for a 500-amp surge and 125-amp continuous use at 12 volts, providing dependable performance in a variety of vehicles. Designed for versatility, this disconnect switch works with top-post-style lead-acid batteries in 6V, 12V, and 24V DC systems. Whether you're a frequent traveler, a seasonal vehicle owner, or just want added security, the CURT towed battery disconnect switch is an easy, reliable solution for keeping your battery charged and your vehicle protected.
CURT offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, and other towing accessories.
For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®.'
Experts available to answer your questions
Call 888-634-9494One-Year Limited
The CURT 52216 is a battery disconnect device that allows you to connect or disconnect the negative battery cable of your tow vehicle with a simple turn of a knob. This is useful when towing to prevent battery drain or electrical issues. It consists of a single assembly with a knob that controls the connection state.
You will need a box-end wrench set and a wire brush. The wrench is used to loosen and tighten the negative cable connector and battery terminal nut. The wire brush is used to clean the battery negative post or side terminal before installation. For a full tools reference guide, visit curtmfg.com/trailer-hitch-installation.
Yes. The engine must be completely off and the key must be removed from the tow vehicle before you begin installation. The manual explicitly states: 'Do not attempt to install the Towed Battery Disconnect with the engine running.' This is a critical safety requirement.
Yes. After removing the negative cable from the battery, clean the battery negative post or side terminal with a wire brush. This removes corrosion and ensures a good electrical connection when you reconnect the Battery Disconnect.
Follow these steps in order: (1) Ensure the engine is off and key is removed. (2) Loosen the negative cable connector on the battery using a wrench and remove it from the negative battery post. (3) Clean the battery negative post or side terminal with a wire brush. (4) Install the negative cable connector to the Battery Disconnect and tighten. (5) Connect the negative end of the Battery Disconnect to the negative battery terminal and tighten the nut.
Turn the knob on the Battery Disconnect to control the connection. One counterclockwise turn of the knob will disconnect battery power. Do not attempt to pull the two halves of the assembly apart; use only the knob to connect or disconnect.
Wear safety glasses at all times during installation. The engine must be completely off and the key removed before you begin. Do not attempt to install the Battery Disconnect with the engine running. Do not pull the two halves of the assembly apart; use only the knob to connect or disconnect. Failure to connect the Battery Disconnect correctly may result in damage to your battery or other electronics.
After installation, verify that all cable connectors and the battery terminal nut are tight. Periodic inspection of the Battery Disconnect should be performed to ensure all mounting hardware remains tight and structural components are secure. This helps prevent electrical issues and product failure.
The manual states that periodic inspection of the trailer hitch (and by extension, the Battery Disconnect) should be performed to ensure all mounting hardware remains tight and structural components are secure. However, the manual does not specify the exact interval for inspection. Contact CURT product support at 877.287.8634 for recommended inspection intervals.
The 52216 is designed for tow vehicles with standard negative battery terminals. Confirm compatibility with your specific battery terminal type (post or side terminal) by contacting CURT at 877.287.8634 before purchase.
Yes, the engine must be completely off and the key removed. Do not attempt installation with the engine running.
Wear safety glasses during installation. The engine must be off and key removed. Do not pull the assembly apart; use only the knob to connect or disconnect. Improper connection may damage your battery or electronics.
Turn the knob on the Battery Disconnect one counterclockwise turn to disconnect battery power. Do not pull the assembly apart.
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Shipping from Eau Claire, WIFREE SHIPPING
Estimated delivery Fri, Aug 28 - Sun, Aug 30
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