Group 78 Batteries

Understanding Group Size 78 Battery Specifications

The Group 78 battery (often referred to as a 78 series or 78-DL battery) is primarily characterized by its side-mounted terminals and specific physical footprint. It is widely used in Buick, Cadillac, Chevrolet, and GMC vehicles from the 1980s through the early 2000s.

Group 78 Battery Dimensions

Standard Group 78 dimensions are approximately:

• Length: 10.25 inches (260 mm)
• Width: 7.06 inches (179 mm)
• Height: 7.31 inches (186 mm)

Because these batteries are typically side-post only, they are ideal for vehicles with low-clearance hoods where top posts might interfere with the chassis or engine components.

Should You Choose AGM or Lithium (LiFePO4)?

For high-performance applications, we offer two superior technologies that outperform traditional lead-acid options:

• Group 78 AGM Batteries: These offer higher CCA ratings (often reaching 800 to 1000 CCA), excellent vibration resistance for trucks and SUVs, and are completely maintenance-free and spill-proof.
• Group 78 Lithium Batteries: LiFePO4 technology provides a massive weight reduction, faster charging speeds, and a significantly longer cycle life compared to lead-acid counterparts.

Cross-Compatibility & Dual Terminal Options

In some applications, you may see a Group 34/78 dual terminal battery. These units feature both side posts and top posts, allowing them to work in a wider variety of vehicles. However, if your vehicle’s battery tray and cables are specifically designed for a side-post "Type 78" battery, sticking with a dedicated Group 78 unit often provides the cleanest installation and most secure cable connection.

High CCA for Cold Climates

For those searching for a "group 78 battery 1000 CCA," high-output options are available for vehicles with aftermarket electronics or for drivers in northern climates who need maximum starting power at zero degrees. Upgrading to AGM or Lithium ensures your vehicle has the cranking power necessary to handle extreme demands and maintain maximum longevity.