Upgrade the starting power in your 1994-1997 Ford 7.3L Powerstroke with a new battery. There are several signs to indicate the battery in your truck is failing and needs to be replaced. Sluggish engine cranking or headlights that are dim or flickering are telltale signs of trouble. A battery's average lifespan is normally between three and six years. Chemical reactions cause batteries to steadily degrade even under perfect conditions. Dual batteries were available on many diesel trucks. If your truck has two batteries, both should be replaced at the same time. Shop the wide selection of batteries for your vehicle at XDP. XDP carries industry leading manufacturers such as Odyssey Battery, and more!