





ACDelco 25PS Vehicle Battery – Group 25 Power
The ACDelco 25PS vehicle battery is engineered for dependable starting power in passenger cars and light-duty vehicles. Built to BCI Group 25 specifications, this battery features high-density negative paste for improved performance and calcium-lead positive grids that resist corrosion. We designed the 25PS with Absorbed Glass Mat (AGM) technology to deliver exceptional vibration resistance and leak-proof operation.
Our ACDelco 25PS is factory-tested to ensure consistent cold cranking amps across extreme temperature ranges. The advanced vent cap design prevents acid leakage while allowing controlled gas escape. Whether you’re replacing an aging factory battery or upgrading for improved reliability, the 25PS delivers the proven power ACDelco customers expect.
- BCI Group 25 dimensions: 9.0625″ L × 6.875″ W × 8.875″ H for precise fitment in compatible vehicles
- High cold cranking amp rating for reliable starting in temperatures down to -18°C (0°F)
- Calcium-lead positive grids resist corrosion and extend service life
- Absorbed Glass Mat (AGM) design eliminates acid spill risk and enhances vibration resistance
- Sealed maintenance-free construction requires no water additions during service life
Advanced AGM Construction for Superior Durability

The ACDelco 25PS vehicle battery utilizes Absorbed Glass Mat technology to immobilize the electrolyte within fiberglass separators. This design eliminates the free-flowing acid found in conventional flooded batteries, creating a spill-proof power source that’s safe to install in any orientation.
Our AGM construction delivers significant advantages for modern vehicles. The glass mat separators maintain tight contact between plates and electrolyte, reducing internal resistance for faster current delivery during engine cranking. This same construction absorbs vibration energy that would otherwise crack plates or loosen active material in traditional batteries.
Group 25 Specifications and Vehicle Compatibility

The ACDelco 25PS conforms to Battery Council International Group 25 dimensions, measuring 9.0625 inches long, 6.875 inches wide, and 8.875 inches tall. These standardized measurements ensure proper fitment in battery trays designed for Group 25 applications across multiple vehicle manufacturers.
This battery size commonly powers compact sedans, midsize cars, and select crossover vehicles from Asian and domestic automakers. Before purchasing, we recommend verifying your vehicle’s battery group size in the owner’s manual or on the existing battery label. Our car battery selection guide helps match the correct group size to your specific make and model.
Cold Cranking Performance and Climate Suitability

We rate the ACDelco 25PS for consistent cold cranking amps (CCA) to ensure reliable starting performance in cold weather conditions. The battery’s AGM design maintains higher voltage during high-current draws compared to flooded batteries of similar physical size.
Cold cranking performance becomes critical when temperatures drop below freezing. Engine oil thickens in cold conditions, requiring more power to rotate the starter motor. Simultaneously, the chemical reactions within batteries slow at low temperatures, reducing available current. Our acdelco 25ps vehicle battery compensates for both challenges through optimized plate surface area and low-resistance AGM separator material.
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Questions About the ACDelco 25PS Battery
The 25PS fits compact and midsize passenger cars that specify BCI Group 25 battery dimensions. Common applications include Honda Civic and Accord models, Toyota Corolla and Camry vehicles, Mazda3 and Mazda6 sedans, and select Subaru Impreza years.
Always verify your vehicle’s battery group size in the owner’s manual or on the existing battery label before purchasing. Some model years within the same vehicle line may use different group sizes depending on engine configuration and electrical demands.
Under normal operating conditions, the acdelco 25ps vehicle battery delivers four to seven years of service life. Actual longevity depends on climate, driving patterns, and electrical system health.
Vehicles in extreme heat environments or those with frequent short trips may experience shorter battery life. Regular maintenance of the charging system and minimizing parasitic electrical draws help maximize battery service life. The AGM construction in the 25PS provides better durability than conventional flooded batteries in demanding applications.
Most vehicle owners with basic hand tools can install the ACDelco 25PS without professional assistance. The process requires removing the negative cable first, then the positive cable, extracting the old battery, placing the new battery, connecting positive first, then negative.
Ensure terminal connections are tight and apply anti-corrosion spray to posts. Some vehicles require memory savers to retain radio presets and computer settings during battery replacement. Consult your vehicle manual for any model-specific procedures such as idle relearn or window calibration after battery installation.
Yes, the ACDelco 25PS works with conventional alternator charging systems found in passenger vehicles. The battery accepts charging voltages between 13.8 and 14.4 volts during engine operation.
While the 25PS uses AGM technology, it doesn’t require special charging equipment for normal in-vehicle use. If you need to charge the battery externally, we recommend using a smart charger with an AGM-specific setting to optimize charge acceptance and prevent overcharging that can damage AGM cells.
The acdelco 25ps vehicle battery uses Absorbed Glass Mat (AGM) technology that immobilizes electrolyte in fiberglass separators, while flooded batteries contain free-flowing liquid acid. AGM construction provides spill-proof operation, superior vibration resistance, and better performance during deep discharge cycles.
AGM batteries like the 25PS also deliver higher cold cranking amps in the same physical size compared to flooded designs. The sealed maintenance-free design eliminates water additions, and AGM batteries typically last longer in demanding applications with frequent cycling or extreme temperatures.
The ACDelco 25PS is sealed and maintenance-free, requiring no water additions or electrolyte level checks. We recommend periodic visual inspection of cable connections for tightness and corrosion buildup.
Clean battery posts and cable terminals with a wire brush if white or green deposits appear, as corrosion increases resistance and reduces starting performance. Verify that the battery hold-down bracket remains secure to prevent vibration damage. Beyond these simple checks, the 25PS operates without regular maintenance intervention.
Lead-acid batteries must be recycled at automotive retailers, service centers, or designated recycling facilities—never disposed of in regular household trash. Most battery retailers accept old batteries for recycling and may offer a core charge refund.
The lead, plastic, and sulfuric acid in automotive batteries are fully recyclable and used to manufacture new batteries. Many jurisdictions impose core charges at purchase that are refunded when you return the old battery, making proper recycling both environmentally responsible and economically beneficial.
