OPTIMA D31T | YELLOWTOP Group 31 AGM Battery 900 CCA – Heavy Duty OTR

OPTIMA D31T YELLOWTOP Group 31 AGM Battery – 900 CCA Heavy Duty OTR

OPTIMA D31T YELLOWTOP is a premium 12-volt, Group 31 AGM battery engineered to deliver dependable engine starting power and deep-cycle performance in demanding heavy-duty truck and commercial vehicle applications. Featuring 900 cold cranking amps, 1,125 cranking amps, and OPTIMA's patented SPIRALCELL TECHNOLOGY, the D31T provides a powerful combination of starting performance, cycling capability, and vibration resistance.

Designed for vehicles with demanding electrical requirements, the OPTIMA YELLOWTOP D31T is an excellent battery option for compatible semi trucks, Class 8 commercial vehicles, over-the-road tractors, construction equipment, agricultural machinery, and other heavy-duty applications requiring a Group 31 battery with threaded stud terminals.

OPTIMA D31T Features & Benefits

• 900 Cold Cranking Amps (CCA) for dependable diesel engine starting power
• 1,125 Cranking Amps (CA) at 32°F
• 75 Amp-Hour Capacity at the 20-hour rate
• 155-Minute Reserve Capacity at a 25-amp discharge rate
• Dual-purpose starting and deep-cycle battery design
• Absorbent Glass Mat (AGM) battery technology
• Patented OPTIMA SPIRALCELL TECHNOLOGY
• Up to 15 times more vibration resistance than conventional flooded batteries
• Designed for repeated discharge and recharge cycles
• Maintenance-free, sealed battery construction
• Spill-resistant design for demanding operating environments
• Low internal resistance supports efficient power delivery and recharging
• Group 31T configuration with 3/8-inch threaded stud terminals
• Suitable for compatible heavy-duty diesel and commercial equipment applications

Heavy-Duty AGM Battery for Semi Trucks & OTR Applications

Over-the-road semi trucks operate in demanding conditions involving continuous vibration, repeated engine starts, changing temperatures, and significant electrical loads. The OPTIMA D31T Group 31 battery is designed to withstand demanding service conditions while delivering strong starting power and dependable electrical performance.

Its AGM construction and SPIRALCELL design provide excellent vibration resistance, making it an attractive choice for compatible commercial trucks operating over long distances and rough road surfaces.

The D31T is suitable for properly specified battery systems in trucks manufactured by Freightliner, Peterbilt, Kenworth, Volvo, Mack, International, Western Star, and other commercial vehicle manufacturers.

900 CCA Diesel Engine Starting Power

Heavy-duty diesel engines require substantial electrical power during starting, particularly in colder operating conditions. The OPTIMA D31T delivers 900 cold cranking amps at 0°F and 1,125 cranking amps at 32°F to support dependable engine starting.

For vehicles equipped with multiple starting batteries, always verify the required battery quantity, total cranking capacity, battery specifications, and manufacturer-approved electrical system configuration.

Deep-Cycle Performance for High Electrical Demands

Unlike conventional starting batteries designed primarily for short bursts of power, the OPTIMA YELLOWTOP D31T combines starting capability with deep-cycle performance.

This dual-purpose design is especially valuable in compatible trucks and equipment with additional electrical loads, including lighting, communication equipment, electronic accessories, and other onboard electrical systems.

The battery's 75 Ah capacity and 155-minute reserve capacity provide a balance of engine starting performance and electrical energy storage.

OPTIMA SPIRALCELL TECHNOLOGY

OPTIMA's patented SPIRALCELL TECHNOLOGY uses tightly wound cells and high-purity lead materials to provide reliable electrical performance and exceptional vibration resistance.

Compared with conventional flooded batteries, the SPIRALCELL construction is designed to better withstand demanding environments involving vibration, shock, and repeated cycling.

For commercial truck operators, this technology offers a premium alternative to traditional flooded Group 31 batteries when the vehicle's electrical system and battery specifications are compatible.

Maintenance-Free AGM Battery Construction

The OPTIMA D31T uses sealed Absorbent Glass Mat (AGM) technology, eliminating the need for routine electrolyte watering associated with conventional flooded lead-acid batteries.

Its low-maintenance construction makes it a convenient option for commercial fleets, owner-operators, diesel repair shops, and equipment operators looking to reduce routine battery maintenance.

OPTIMA D31T Heavy-Duty Applications

• Over-the-road semi trucks
• Class 8 commercial trucks
• Heavy-duty diesel trucks
• Commercial fleet vehicles
• Day cab and sleeper cab tractors
• Construction equipment
• Agricultural machinery
• Industrial equipment
• Vehicles with high electrical accessory demands
• Compatible Group 31T battery installations

OPTIMA D31T Battery Specifications

• Brand: OPTIMA Batteries
• Model: D31T YELLOWTOP
• Manufacturer Part Number: 8050-160
• Battery Type: Dual-Purpose Starting / Deep-Cycle
• Battery Technology: AGM (Absorbent Glass Mat)
• BCI Group Size: 31T
• Voltage: 12 Volts
• Cold Cranking Amps: 900 CCA
• Cranking Amps: 1,125 CA
• Amp-Hour Capacity: 75 Ah (C20)
• Reserve Capacity: 155 Minutes at 25 Amps
• Terminal Type: 3/8"-16 Threaded Stud
• Length: 12.81 Inches
• Width: 6.56 Inches
• Height: 9.38 Inches
• Weight: Approximately 59.8 lbs
• Case Color: Gray
• Top Color: Yellow
• Technology: OPTIMA SPIRALCELL

Group 31T Battery Fitment & Compatibility

The OPTIMA D31T is designed for applications requiring a 12V Group 31 battery with 3/8-inch threaded stud terminals. It is not automatically interchangeable with every Group 31 battery or every heavy-duty commercial truck battery.

Before ordering, verify the battery's physical dimensions, terminal configuration, cold cranking requirements, reserve capacity, hold-down compatibility, charging system, and vehicle manufacturer's battery specifications.

Important: For trucks using multiple batteries connected in parallel or series, follow the vehicle manufacturer's requirements for matching battery type, age, capacity, and condition. Use an AGM-compatible charging system and observe all manufacturer installation and safety instructions.