Replace the failed or corroded Battery Cables in your 1982-2000 Chevy/GMC 6.2L/6.5L Diesel. Shop XDP for high-quality battery and alternator cables for your vehicle today! While battery cables serve a very simple purpose, they are a very important component of your vehicle�s electrical system. The battery cables transfer power from the battery to the entire electrical system. Starting a truck takes a considerable amount of cranking power. Any damage or wear to the battery cables can reduce their ability to conduct full power. It is a good practice to inspect your cables occasionally for any signs of damage or excessive corrosion. As the metal ages and after numerous battery replacements, the terminals can also soften up over time and begin to develop cracks. A common indicator of damaged or deteriorating battery cables is no power when you turn the key. The vehicle may not get any electrical power if the wires become damaged or do not make a good connection with the battery.