{"product_id":"projecta-bc300b-battery-clamp-300a-black","title":"Projecta BC300B 300A Battery Clamp, Black","description":"\u003ch3\u003eQuick answer\u003c\/h3\u003e\u003cp\u003eThe black 300A clamp, for the negative side of a lighter jump or charger lead.\u003c\/p\u003e\u003cp\u003eThe black 300A clamp, for the negative side of a lighter jump or charger lead. Pair it with the red BC300R.\u003c\/p\u003e\u003cp\u003eFor heavier work, the BC1000B is the 1000A solid brass option.\u003c\/p\u003e\u003cp\u003eJaws and shunt are heavy duty brass plated steel.\u003c\/p\u003e\u003cp\u003eMatch the lug to both the cable and the stud; a loose fit on either costs voltage. Keep lugs in a sealed tub so they stay bright until used. A tug test after crimping tells you straight away if the joint is sound. Use red and black heat shrink to mark polarity at each end. Strip only enough insulation for the barrel, so no bare copper shows past the joint. Remove rings and watches before working on battery connections. Keep the battery top clean and dry; grime can let current track across between the posts. Disconnect the negative terminal first and reconnect it last whenever you work near the battery. White or green crust on a terminal is corrosion, and it adds resistance to the circuit. See the rest of the \u0026lt;a href=\"https:\/\/frankiesautoelectrics.com.au\/collections\/projecta\"\u0026gt;Projecta range\u0026lt;\/a\u0026gt; for matching parts.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRating: 300A\u003c\/li\u003e\n\u003cli\u003eColour: black\u003c\/li\u003e\n\u003cli\u003eJaws: brass plated steel, with shunt\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWarranty\u003c\/h2\u003e\u003cp\u003eThis comes with the manufacturer's warranty through the Australian distributor. See the manufacturer's terms for details, plus our guarantees under the Australian Consumer Law.\u003c\/p\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eIs the BC300B for the negative lead?\u003c\/h3\u003e\u003cp\u003eYes, black marks negative. Pair it with the red BC300R.\u003c\/p\u003e\u003ch3\u003eHow is the BC300B different from the BC1000B?\u003c\/h3\u003e\u003cp\u003eThe BC300B is a 300A brass plated steel clamp; the BC1000B is a 1000A solid brass clamp for heavy duty leads.\u003c\/p\u003e\u003ch3\u003eWhat rating is the BC300B?\u003c\/h3\u003e\u003cp\u003e300A.\u003c\/p\u003e","brand":"Projecta","offers":[{"title":"Default Title","offer_id":67914465804381,"sku":"BC300B","price":34.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/9528\/9437\/files\/b799a471-4d67-4cee-8197-3d735c88300c1A5684909.jpg?v=1793780606","url":"https:\/\/frankiesautoelectrics.com.au\/products\/projecta-bc300b-battery-clamp-300a-black","provider":"Frankies Auto Electrics","version":"1.0","type":"link"}