




ACDelco Silver Battery Group 35SA – 550 CCA
Our ACDelco Silver Battery Group 35SA combines absorbed glass mat technology with robust power output to deliver 550 cold cranking amps when you need them most. Engineered for modern vehicles with demanding electrical systems, this maintenance-free battery features spill-proof construction and exceptional vibration resistance.
The Group 35SA dimensions fit a wide range of Asian and domestic vehicle applications, while the calcium-lead positive grid design ensures consistent performance across temperature extremes. Whether you’re starting your engine in freezing winter conditions or powering accessories during summer road trips, this AGM battery provides the dependable energy your vehicle requires.
- 550 cold cranking amps (CCA) for reliable cold-weather starting power
- Absorbed glass mat (AGM) technology eliminates water maintenance
- Group 35SA dimensions: 9.06″ L × 6.89″ W × 8.86″ H
- Spill-proof, valve-regulated design safe for passenger compartments
- Enhanced vibration resistance protects internal components
AGM Construction & Maintenance-Free Design

The acdelco silver battery group size 35sa uses absorbed glass mat separator material that suspends electrolyte between lead plates, eliminating the need for periodic water additions. Unlike conventional flooded batteries, the AGM design immobilizes acid within glass fiber mats, preventing spills even if the case cracks during installation or an accident.
This valve-regulated lead-acid (VRLA) construction allows safe mounting in various orientations without leaking. Internal pressure relief valves release excess gas during charging while maintaining a sealed environment that protects against corrosion. The calcium-lead alloy grid resists sulfation and reduces self-discharge, so your battery holds its charge longer during storage or infrequent use.
Cold Cranking Performance & Reserve Capacity

The 550 CCA rating indicates this battery can deliver 550 amps at 0°F for 30 seconds while maintaining at least 7.2 volts—the threshold needed to reliably crank most engines in freezing conditions. Cold temperatures thicken engine oil and slow chemical reactions inside batteries, making cold cranking amps the critical specification for winter reliability.
Beyond starting power, the 35SA offers 80 minutes of reserve capacity, which measures how long the battery can run essential electrical systems if your alternator fails. This reserve keeps headlights, hazard flashers, and climate controls operating long enough to reach help safely. The AGM chemistry delivers stable voltage throughout the discharge curve, preventing the sudden voltage drops that can disable electronic modules.
Group 35SA Fitment & Compatibility

Group 35SA dimensions follow Battery Council International (BCI) standardization, ensuring precise fit in vehicles originally equipped with this size. The 9.06-inch length, 6.89-inch width, and 8.86-inch height match original equipment specifications for numerous Honda, Nissan, Toyota, Subaru, Mazda, and Mitsubishi models from the 1990s through current production years.
Terminal configuration features top posts with reverse polarity—negative terminal on the driver’s side, positive on the passenger’s side when viewing the battery from the front. Always verify your vehicle’s polarity before installation to avoid electrical damage. The posts accept standard lead battery cable clamps and corrosion-resistant terminal protectors.
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Your Questions About the ACDelco Silver 35SA Battery
The Group 35SA fits many Honda, Nissan, Toyota, Subaru, Mazda, and Mitsubishi vehicles from the 1990s onward. Verify your current battery’s BCI group size by checking the label on top or measuring dimensions (9.06″ L × 6.89″ W × 8.86″ H).
Note the reverse terminal polarity with the negative post on the driver’s side. Consult your owner’s manual or a fitment guide to confirm compatibility before ordering.
The 550 CCA rating indicates this battery delivers 550 amps for 30 seconds at 0°F while maintaining 7.2 volts minimum. This specification measures starting power in freezing conditions when engine oil thickens and batteries lose chemical efficiency.
For most four-cylinder and smaller six-cylinder engines, 550 CCA provides reliable cold-weather starting. Larger engines or diesel applications may require higher CCA ratings for consistent winter performance.
No, the acdelco silver battery group size 35sa is completely maintenance-free with sealed construction. The absorbed glass mat technology suspends electrolyte within glass fiber mats, eliminating water loss through evaporation.
The valve-regulated design releases excess gas during charging but prevents water vapor escape. Never attempt to open or add water to an AGM battery, as this will damage the sealed system and void the warranty.
AGM batteries typically deliver 4-7 years of service depending on climate, driving habits, and electrical system condition. Hot climates accelerate chemical aging, while frequent short trips prevent full recharging and reduce lifespan.
The 40-month warranty provides baseline coverage, but proper maintenance extends actual service life significantly. Regular voltage checks, clean terminals, and a maintenance charger for infrequently driven vehicles maximize longevity.
Most DIYers can replace the battery with basic hand tools in 15-30 minutes. Disconnect the negative cable first, then positive, remove the hold-down bracket, lift out the old battery, and reverse the process with the new one.
Always verify terminal polarity before connecting cables to avoid electrical damage. Some vehicles require computer memory retention during replacement; consult your owner’s manual for specific procedures and any necessary memory-saver devices.
The Silver series offers excellent value with solid AGM construction and reliable performance for standard driving conditions. Gold series batteries feature enhanced calcium alloy grids and additional reserve capacity for demanding applications.
For most daily drivers, the Silver 35SA provides all the performance needed at a lower price point. Choose Gold series if you operate in extreme temperatures, run extensive accessories, or want maximum longevity from a premium battery.
Yes, the valve-regulated AGM construction contains all electrolyte within absorbed glass mat separators with no free liquid acid. This sealed design meets transportation safety standards for passenger compartment installation.
Even if the case cracks during installation or an accident, the immobilized electrolyte cannot spill like conventional flooded batteries. Pressure relief valves release gases safely while maintaining the sealed environment that protects against acid leaks.
