Built in a strong spring that won't lose its elasticity easily after multiple uses. The red clamp is positive and the black is negative. Current up to 1000A.
Versatile 2PCS Heavy Duty Crocodile Clamps for 12V/24V Battery Charger Projects
4 Set Heavy Duty Crocodile Clamp Copper 500A Battery Charger Alligator Clip
Heavy Duty Crocodile Clamp Copper 500A Battery Charger Alligator Clip 4PCS
4PCS Heavy Duty Crocodile Clamp Copper 500A Battery Charger Alligator Clip
4 PCS Jumper Cable Clamps Heavy Duty, Battery Clamps 1100A Jumper Cable Ends,
1000A Battery Jumper Cable Clamps, Heavy Duty Car Clamps Pure...
