ACDelco Truck Battery – Heavy Duty Power for Commercial & Fleet Vehicles
Our ACDelco Gold 78PG delivers exceptional starting power for heavy-duty trucks, work vans, and commercial fleets operating in extreme conditions. Engineered with Absorbed Glass Mat (AGM) technology, this professional-grade battery provides superior vibration resistance and up to three times the cycle life of conventional flooded batteries.
With 800 cold cranking amps and a 120-minute reserve capacity, the 78PG ensures reliable starts in temperatures down to -40°F. We built this battery for fleet managers and operators who demand consistent performance across thousands of ignition cycles. The calcium positive grid design minimizes water loss and extends service intervals, reducing downtime and maintenance costs for your operation.
- 800 cold cranking amps (CCA) for dependable starts in extreme cold
- AGM technology with absorbed electrolyte for leak-proof operation
- Vibration-resistant construction for rough terrain and commercial use
- 120-minute reserve capacity to power accessories during engine-off periods
- Calcium positive grid design reduces self-discharge and water loss
AGM Technology & Vibration Resistance
The ACDelco truck battery lineup features Absorbed Glass Mat technology that suspends electrolyte within fiberglass mat separators between the plates. This construction eliminates free-flowing acid, making our batteries completely spill-proof even when mounted at extreme angles in specialty vehicle applications.
AGM design delivers three critical advantages for commercial truck operators: exceptional vibration resistance for unpaved routes and construction sites, faster recharge rates after deep discharge cycles, and the ability to handle high electrical loads from inverters, lift gates, and auxiliary equipment. The tightly compressed cell pack withstands the constant jarring of fleet service that destroys conventional flooded batteries within months.
Cold Cranking Performance & Reserve Capacity
Starting Power in Extreme Temperatures
The 78PG model delivers 800 cold cranking amps, providing the instantaneous surge needed to turn over diesel engines and high-compression gas motors in subzero conditions. We rate our batteries at 0°F following SAE J537 standards, ensuring you get truthful performance data rather than inflated marketing numbers.
Cold cranking amps represent the discharge current a battery can deliver for 30 seconds at 0°F while maintaining at least 7.2 volts across the terminals. Our heavy-duty truck batteries exceed this baseline by significant margins, with several models offering 850+ CCA for extreme-duty applications.
Fitment & Group Size Compatibility
ACDelco uses industry-standard BCI (Battery Council International) group size designations to ensure proper fitment in your vehicle’s battery tray. The Group 78 configuration measures 10.94″ length × 7.5″ width × 7.56″ height and fits most GM full-size pickups from 2000-present, including Chevrolet Silverado 1500/2500/3500, GMC Sierra, and Cadillac Escalade models.
Our product literature includes complete dimensional drawings and terminal layout diagrams to verify compatibility before purchase. Side-post terminals on the 78PG match OE specifications, eliminating the need for adapter cables or modified hold-down brackets. The battery drops directly into the factory tray with existing hardware.
More Heavy-Duty Power Solutions
What people are saying
Common Questions About ACDelco Truck Batteries
Most 2000-present Silverado 1500, 2500, and 3500 models use Group 78 side-post batteries like our 78PG model. The 78 designation indicates specific dimensions (10.94″ × 7.5″ × 7.56″) and terminal configuration that match GM factory specifications.
Some earlier model years and specific trim packages may require Group 75 batteries instead. Check your owner’s manual or measure your existing battery’s length, width, and height to verify the correct group size before ordering.
Our AGM batteries average 4-6 years of service life in typical driving conditions, compared to 3-4 years for conventional flooded batteries. Actual longevity depends on climate, electrical load, and charging system health.
Fleet data shows our professional-grade AGM batteries maintain 95% of rated capacity after three years of daily commercial use. Extreme heat, frequent deep discharges, and undercharging from faulty alternators reduce service life for any battery chemistry regardless of brand.
AGM batteries require chargers with AGM-specific profiles or adjustable voltage settings. Standard flooded battery chargers often apply excessive voltage that damages AGM cells and voids the warranty.
Use chargers labeled for AGM or absorbed glass mat chemistry, which limit voltage to 14.4-14.7V during bulk charging. Many modern smart chargers automatically detect battery type and adjust charge parameters accordingly. Never use a manual charger above 10 amps for AGM batteries without monitoring voltage constantly.
Our Gold line represents professional-grade batteries with maximum cycle life and reserve capacity for fleet and commercial applications. Gold series batteries include enhanced vibration resistance and longer free replacement warranty periods.
Silver batteries offer premium AGM technology for enthusiast and high-performance applications, with emphasis on cold cranking amps and deep-cycle capability. Both lines use absorbed glass mat construction—the difference lies in warranty coverage and specific performance tuning for intended use cases.
Our batteries ship fully charged and ready for immediate installation. You may notice a date code sticker indicating manufacturing date—batteries lose approximately 5% charge capacity per month during storage.
If the manufacturing date exceeds six months before your installation date, we recommend topping off the charge using an AGM-compatible charger before first use. This ensures you get maximum cold cranking amps during that critical first start.
Yes, our AGM batteries are specifically engineered for enhanced flooded batteries (EFB) and start-stop technology found in modern trucks. The absorbed electrolyte design handles the frequent discharge-recharge cycles that destroy conventional flooded batteries in start-stop applications within months.
Vehicles equipped with factory start-stop systems require AGM batteries to maintain warranty coverage and proper system operation. Installing a standard flooded battery in a start-stop vehicle causes premature battery failure and may trigger check-engine lights or disable the start-stop function entirely.
Our professional Gold series like the 78PG includes three years of free replacement coverage for defects in materials and workmanship. If the battery fails to meet rated specifications during this period, we replace it at no charge—no prorated reimbursement or partial credit.
Warranty claims require the original purchase receipt and battery date code verification. Coverage excludes damage from accidents, improper charging, physical abuse, or installation in applications exceeding rated specifications. Commercial fleet customers can access extended warranty programs through authorized distributors.