Brush away any dirt or gunk from the posts, because you'll need to create as clean and solid connection as you can. First, ...

High Quality: Jumper cable battery clamps made of copper core clip body, all-inclusive material, the widest clip body is more stable. The anti-slip pattern design of the handle is made of soft ...

Deep clean the posts with a battery terminal cleaning tool or 120-grit ... Worse, the clamp plate (usually made of steel, which corrodes easily) squashes the cable flat, so you only get partial ...