Odyssey Battery ODX-AGM78 Vehicle Battery - Primary

Odyssey AGM2 Automotive Battery for Heavy-Duty Starting Power

The Odyssey Battery ODX-AGM78 is a Group 78 automotive battery built with Thin Plate Pure Lead (TPPL) AGM technology for strong starting performance and fast recharge acceptance. With 880 cold cranking amps and 68 amp hours, it is a direct-fit option for a wide range of Chevrolet Express, GMC Savana, Silverado, Sierra, Tahoe, Yukon, and other Group 78 applications.

Key Features

• 12V automotive battery with 68 amp hours
• 880 CCA and 1050 cranking amps for dependable engine starts
• Group 78 case size for confirmed fitment in many GM applications
• TPPL AGM construction for high power density and durability
• Fast-charge acceptance for vehicles with frequent start-stop or accessory demand
• Dimensions: 10.850 in. long, 6.990 in. wide, 7.120 in. high

Odyssey AGM2 Product Line Details

Odyssey AGM2 batteries use Thin Plate Pure Lead construction, which allows more plates inside the case than a conventional battery design. That added plate count supports higher power output and longer service life than standard AGM or flooded SLI batteries, while also improving charge acceptance and reserve performance in demanding automotive use.

Detailed Description

The ODX-AGM78 is engineered for drivers who need a Group 78 vehicle battery with strong cranking output and stable electrical performance. It is a practical replacement for many 1996-2017 Chevrolet Express 2500 and Express 3500 vans, 2019-2024 GMC Savana 2500 and Savana 3500 vans, and numerous GM trucks and SUVs including Silverado 1500, Sierra 1500, Tahoe, Yukon, Trailblazer, Envoy, and Escalade applications. This part number, ODX-AGM78, also appears in fitments for select Cadillac, Buick, Pontiac, Saturn, Hummer, and Dodge Viper applications where Group 78 sizing is specified.

This part cross-references Anchor 9878 and OSC 78 for the same application.

What This Battery Helps Address

• Slow cranking or weak starts in cold weather
• Voltage drop during accessory-heavy operation
• Frequent battery replacement from conventional flooded designs
• Recharge lag after short-trip driving
• Fitment issues when a Group 78 battery is required

Installation Notes and Tips

• Verify Group 78 dimensions before installation: 10.850 in. x 6.990 in. x 7.120 in.
• Confirm the vehicle’s positive-side orientation and tray clearance, especially on applications noting left-side positive placement.
• Some listed vehicles note that battery restraints may require modification or that the battery is taller than the original unit.
• Use the vehicle’s specified mounting and terminal configuration for a secure installation.
• Check the charging system after replacement to confirm proper alternator output and battery voltage.

Quality Assurance

Odyssey Battery positions the AGM2 line as a TPPL-based automotive battery platform focused on power density, fast-charge acceptance, durability, and service life. The ODX-AGM78 is built to meet the demands of confirmed Group 78 fitments across GM vans, trucks, and SUVs, including Chevrolet Express, GMC Savana, Silverado, Sierra, and Yukon applications.