This is a used power cable (for Daiwa). It is clean for a used item, but I checked its continuity with a tester just in case. I measured it while moving each part, and it showed stable and good continuity values. *Please be aware of products that claim to be compatible with both Daiwa and Shimano! In some cases, the thickness may not fit perfectly and cannot be inserted, and furthermore, the polarity is reversed between Shimano and Daiwa, so you need to understand how to connect the alligator clips to the battery.