Then, you'll join the charger's optimistic clamp into the battery's good terminal plus the charger's destructive clamp for the battery's detrimental terminal. Ordinarily, the charger's positive clamp will probably be red and also the unfavorable clamp will likely be black. How can I Link a Battery Charger-Maintainer to My Vehicle? https://hukums.com/products/stanley-1-93-601-essential-toolroll