ACDelco Group 35S Battery – Size 35 Silver AGM
Our ACDelco Group 35S Battery is engineered for drivers who demand reliable starting power and long-term durability. This premium AGM (Absorbed Glass Mat) battery features advanced lead-calcium technology that resists vibration and delivers consistent performance in extreme temperatures.
Designed specifically for modern vehicles with high electrical demands, the Group 35S provides excellent cycling capability and faster recharge times than conventional flooded batteries. The silver calcium alloy construction ensures low self-discharge rates, making this battery ideal for vehicles with frequent short trips or extended storage periods.
We’ve built this battery with dual terminal posts to accommodate side and top connections, giving you flexible installation options across a wide range of vehicle makes and models. The sealed, spill-proof design means you’ll never need to add water or perform maintenance throughout the battery’s service life.
- Group Size 35 dimensions: 9.06″ L × 6.88″ W × 8.94″ H for precise OEM fitment
- Premium AGM construction with absorbed glass mat technology for superior vibration resistance
- Dual terminal design accommodates both side-mount and top-post connections
- High cold cranking amps (CCA) for reliable starts in freezing conditions
- Calcium-lead alloy grids minimize water loss and extend service life
AGM Technology & Construction
The acdelco group size 35s battery uses Absorbed Glass Mat technology that suspends electrolyte within fine glass fiber separators rather than allowing it to flow freely like conventional batteries. This design dramatically improves vibration resistance—critical for modern vehicles with engine start-stop systems and rough road conditions.
Our calcium-lead alloy grid structure provides exceptional corrosion resistance compared to traditional antimony alloys. The reduced grid corrosion translates directly to longer battery life and more reliable performance over the years. The sealed valve-regulated design prevents acid leakage even when the battery is mounted at an angle, making installation safer and more flexible.
Vehicle Compatibility & Fitment
This Group 35 battery fits a wide range of Japanese and domestic vehicles from manufacturers including Toyota, Nissan, Subaru, and select Chevrolet models. The 9.06-inch length and 6.88-inch width match OEM specifications for battery trays designed for Group 35 dimensions.
Before installation, verify your vehicle’s original battery group size in the owner’s manual or on the existing battery label. The dual terminal configuration on the acdelco group size 35s battery accepts both top-post and side-mount cable connections, accommodating different factory cable designs without adapters.
Installation & Safety Guidelines
Always disconnect the negative (ground) cable first before removing your old battery to prevent electrical shorts. Clean the battery tray and cable terminals with a wire brush and baking soda solution to remove corrosion before installing the acdelco group size 35s battery.
Position the battery with terminals oriented to match your cable layout—the dual terminal design gives you flexibility for both side and top connections. Tighten the hold-down bracket securely to prevent vibration damage during driving, but avoid over-tightening which can crack the battery case.
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ACDelco Group 35S Battery Questions
The Group 35 battery fits many Toyota models including 4Runner, Tacoma, Tundra, and Camry, plus Nissan Frontier, Pathfinder, and Xterra vehicles. Subaru Outback, Legacy, and Forester models also commonly use this group size.
You’ll also find Group 35 specifications in select Chevrolet, Infiniti, and Lexus vehicles. Always verify your vehicle’s original battery group size by checking the label on your current battery or consulting your owner’s manual before purchasing.
Yes, you can upgrade from a conventional flooded battery to this AGM design in most vehicles. The acdelco group size 35s battery provides superior performance compared to standard batteries, with better vibration resistance and longer service life.
Most modern vehicle charging systems automatically accommodate AGM batteries without modification. However, some newer vehicles with battery management systems may require a dealer reset to optimize charging parameters for AGM chemistry. Check your vehicle’s service information if you have a battery sensor or energy management system.
Under normal driving conditions with a healthy charging system, this AGM battery typically delivers 4-6 years of reliable service. Actual lifespan varies based on climate, driving patterns, and electrical system health.
Vehicles in extreme temperature climates (very hot or very cold) may experience shorter battery life. Frequent short trips that don’t allow full recharging will also reduce longevity. Regular longer drives and maintaining your vehicle’s charging system help maximize battery life.
The Silver line represents our premium AGM batteries with advanced features for demanding applications, while Gold batteries are professional-grade flooded designs. Silver batteries like this Group 35S model offer superior vibration resistance, faster recharge rates, and maintenance-free operation.
Gold batteries provide reliable performance at a lower price point but require occasional water level checks and don’t handle deep cycling as well. For vehicles with start-stop systems or high electrical demands, the Silver AGM design is the recommended choice.
While standard battery chargers will work, we recommend using a charger with an AGM-specific mode for optimal results. AGM batteries require slightly different charging voltage profiles compared to flooded batteries to achieve full charge without overcharging.
Many modern smart chargers automatically detect battery type and adjust accordingly. If you use a basic charger, avoid high amp settings that can damage the AGM separator material. For long-term storage maintenance, a low-amp trickle charger or battery maintainer designed for AGM chemistry works best.
Yes, the sealed valve-regulated design of the acdelco group size 35s battery allows safe mounting at angles, though we don’t recommend fully inverted (upside-down) installation. The absorbed electrolyte won’t spill even if the case is tilted during installation or from vehicle movement.
However, for optimal performance and longevity, install the battery in the standard upright position whenever possible. The internal valve system is designed to vent properly when the battery is level. Always ensure proper ventilation around the battery regardless of mounting angle.
Automotive batteries contain lead and sulfuric acid that require proper recycling—never dispose of them in household trash. Most auto parts retailers and service centers accept used batteries for recycling, often offering a core charge credit toward your new battery purchase.
Many locations provide free battery recycling even if you didn’t purchase from them. The lead and plastic components are highly recyclable, with over 95% of battery materials recovered for reuse. Contact your local waste management authority if you need assistance finding a battery recycling location near you.