Optima YellowTop D31T Dual Purpose AGM Automotive Battery (OPT-D31T-YT)

The Optima YellowTop D31T Dual Purpose AGM Automotive Battery (OPT-D31T-YT) is a high-performance, true dual-purpose battery built with Optima’s patented SpiralCell Technology — delivering exceptional starting power combined with deep-cycle reliability for demanding applications.

Perfect for trucks, RVs, marine use, off-road vehicles, commercial fleets, vehicles with heavy accessory loads (winches, lights, audio systems, inverters), start-stop systems, and high-electrical-demand setups, this AGM battery excels where both cranking and sustained power are essential.

Key features and benefits include:

• 900 Cold Cranking Amps (CCA) for powerful, reliable engine starts in extreme cold or under heavy loads, plus 1125 Cranking Amps (CA) for enhanced performance.
• 75 Ah (C20 capacity) and 155 minutes reserve capacity (at 25 amps) — providing extended runtime for deep-cycle demands when the alternator is not charging.
• True dual-purpose design — handles engine starting plus repeated deep discharges and recharges better than standard starting batteries.
• Up to 3X longer service life than conventional flooded batteries, with superior deep discharge recovery and cycling performance.
• 15 times more vibration-resistant than traditional batteries — ideal for rugged off-road, marine, commercial truck, or high-vibration environments.
• Virtually spill-proof and non-spillable AGM construction — mount in any position (including sideways or inverted) without risk of acid leaks.
• Maintenance-free — no water additions or electrolyte checks required.
• Faster recharge rates for quick recovery after heavy accessory use or deep cycling.
• Corrosion-resistant design and durable build for long-term reliability in harsh conditions.
• 12-Volt system with BCI Group Size 31 (Type T threaded stud terminals) for secure connections in trucks, commercial, and marine applications.

Dimensions: Length 12.81 inches, Width 6.56 inches, Height 9.38 inches. Weight: Approximately 59.8 lbs.

Trusted by professionals, enthusiasts, and fleet operators, the Optima YellowTop D31T stands out as a premium AGM dual-purpose battery that outperforms conventional options in starting reliability, deep-cycle endurance, vibration resistance, and overall longevity. Whether upgrading a heavy-duty truck, equipping an RV with power-hungry accessories, or powering marine electronics, this battery delivers unstoppable performance.

Search no further for a top-tier dual-purpose AGM battery, deep cycle starting battery, or high-capacity vibration-resistant battery — the Optima YellowTop D31T (OPT-D31T-YT) is the ultimate choice for demanding automotive, commercial, and recreational power needs.