45mm Metal Alligator Clip G99 Crocodile Electrical Clamp

The G99 Metal Alligator Clip is a heavy-duty electrical test clip designed for temporary, secure electrical connections. With a 45mm jaw opening , it can accommodate large-gauge wires, battery terminals, bus bars, and other electrical connection points that standard small alligator clips cannot handle. The jaws are constructed from sturdy metal (typically nickel-plated steel or copper alloy) to ensure low electrical resistance and excellent conductivity. The clip features insulated handles (usually red and black color-coded) which provide protection against accidental short circuits and make handling safe when working with live circuits. The serrated jaw design provides a firm grip on both flat and round surfaces, preventing accidental disconnection. The G99 is commonly used in electronics testing , automotive battery charging , jump-starting , laboratory experiments , and DIY power distribution projects . The spring-loaded hinge maintains constant clamping pressure. This clip is often sold individually or in pairs (one red, one black) for positive and negative connections. Specifications Parameter Value Type Metal alligator clip / crocodile clip Model G99 Jaw opening 45mm Material Metal (typically nickel-plated steel or copper alloy) Handle insulation Yes – insulated handles (plastic or rubber coating) Color coding Typically red and black (for polarity identification) Connection terminal Solder lug or crimp terminal (for wire attachment) Maximum current Depends on wire used; clip itself handles high current due to large contact area Temperature range -10°C to +60°C (typical for insulated handles) Applications Electronics testing – Temporary connections to test points, components, and circuit boards Battery charging – Connecting charger clamps to battery terminals (automotive, marine, or industrial batteries) DIY projects – Quick disconnect connections for power supplies, inverters, or homemade equipment Automotive diagnostics – Connecting multimeter or test light to battery posts or engine grounds Laboratory experiments – Secure connections to power supplies, resistors, or breadboard substitutes Educational demonstrations – Safe, easy-to-use clips for student electronics labs Jump-starting small engines – For motorcycles, lawn tractors, or power sport batteries (with appropriate wire gauge) Power distribution – Temporary connection of multiple wires to a common bus bar or terminal