{"product_id":"joinfworld-battery-disconnect-switch-500a-12-36v-heavy-duty-lockable-kill-switch-with-fixed-handle","title":"Joinfworld Battery Disconnect Switch 500A 12–36V — Heavy-Duty Lockable Kill Switch with Fixed Handle","description":"\u003cstrong\u003eJoinfworld 500A Battery Disconnect Switch is a heavy-duty, manual battery isolator that safely cuts power for 12V–36V systems and prevents drain or unauthorized use.\u003c\/strong\u003e\n\n\u003cp\u003eThis rugged, die-cast metal battery kill switch is designed for high-current applications including trucks, RVs, boats, UTVs and industrial vehicles. With a 500A continuous rating and 5,000A instantaneous capacity, the unit gives a reliable, simple way to isolate batteries during storage, maintenance or theft prevention. The fixed handle and included lock plate let you secure the switch in the ON or OFF position for peace of mind.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Joinfworld 500A switch protect my battery when a vehicle is idle?\u003c\/h3\u003e\n\u003cp\u003eBy physically opening the battery circuit, the disconnect switch stops parasitic draws from accessories, onboard chargers or electronics that slowly deplete a battery. That keeps batteries at a healthier state of charge during long storage periods and reduces the chance of a dead battery.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStops parasitic loads for 12–36V systems\u003c\/li\u003e\n  \u003cli\u003eEliminates slow drains from alarms, radios and sensors\u003c\/li\u003e\n  \u003cli\u003eReduces deep discharge cycles that shorten battery life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this switch handle heavy-duty automotive and marine currents?\u003c\/h3\u003e\n\u003cp\u003eYes — the Joinfworld isolator is built for high-current service. It supports a continuous rating of 500 amps and can withstand surge currents up to 5,000 amps, making it suitable for starters, winches and other large loads found in commercial and recreational vehicles.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e500A continuous current rating\u003c\/li\u003e\n  \u003cli\u003e5,000A instantaneous surge capacity\u003c\/li\u003e\n  \u003cli\u003eTwo 3\/8\" (M10) threaded studs with nuts for secure battery cable connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is it to install and secure the disconnect switch?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: fasten the switch with the supplied studs and ring terminals, wire into the negative or positive battery cable as required, and mount the lockout plate for panel security. The spin-style handle turns to open or close the circuit, and the lock feature prevents accidental or unauthorized operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSimple spin-handle operation for quick on\/off control\u003c\/li\u003e\n  \u003cli\u003eIncludes lockout plate to secure the switch in position\u003c\/li\u003e\n  \u003cli\u003eDurable, waterproof die-cast handle for outdoor use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the Joinfworld battery isolator durable enough for outdoor or marine use?\u003c\/h3\u003e\n\u003cp\u003eThe switch uses robust metal and copper internals with a heavy-duty die-cast handle designed to resist harsh conditions. Its construction is intended for long-term service in engine bays, on deck or in exposed equipment bays where vibration and moisture are present.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePremium metal and copper components for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eWater-resistant, rugged fixed handle and housing\u003c\/li\u003e\n  \u003cli\u003eMade for commercial vehicles, boats, and off-road equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Joinfworld 500A Battery Disconnect Switch is aimed at professional mechanics, fleet managers, boater-owners, and DIY enthusiasts who need a reliable, high-current way to isolate batteries. If you work with 12V–36V electrical systems, operate heavy-duty equipment, or store vehicles for long stretches, this isolator provides a practical solution to prevent battery drain, simplify maintenance, and add a theft-resistant lockout option.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this switch on both 12V and 24V systems?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The Joinfworld 500A switch supports 12V, 24V and 36V DC systems for diverse vehicle types.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it come with mounting hardware and lock?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The switch includes two M10 studs and nuts plus a lockout plate; a padlock is typically sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Joinfworld","offers":[{"title":"Default Title","offer_id":55166378410327,"sku":"B0BGXBZN5T","price":39.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/joinfworld-front-panel-switch_d1bf825a-6643-4928-a861-08964209b8d3.jpg?v=1790367500","url":"https:\/\/britishgarage.co.uk\/products\/joinfworld-battery-disconnect-switch-500a-12-36v-heavy-duty-lockable-kill-switch-with-fixed-handle","provider":"British Garage","version":"1.0","type":"link"}