Duralast Platinum AGM Battery Review

The Duralast Platinum AGM battery stands out as one of the top choices for high-performance vehicles with greater electrical demands. This absorbent glass mat (AGM) battery brings premium power, durability, and versatility for various applications. Let’s take a closer look at what sets the Duralast Platinum apart.

Duralast Platinum AGM

Specification Details
Battery Technology Absorbent glass mat (AGM) sealed construction
Warranty 3 Year Warranty
Vehicle Type Modern vehicles with high electrical demands
Starting Power Superior
Original Equipment Recommended replacement for vehicles with advanced electronics
Group Size 34, 47, 24F, 35, 48, 49, 51R, 65, 94R, 124R, 24, 27F, 400, 401, 51, 78, 95R, 96R
Cold Cranking Amperage 340A to 950A
Cranking Amperage 425A to 1060A
Reserve Capacity 45min to 170min
Price $249.99
Additional Features Spillproof, mountable at any angle, enhanced vibration resistance, 2x cycle life of conventional batteries, superior cold cranking ability, fast recharge.

Battery Technology

The Duralast Platinum uses AGM technology that absorbs electrolytes in a fiberglass mat separator. This makes the battery spill-proof and mountable at any angle while also providing resistance to vibrations and heat.

AGM batteries outperform conventional flooded lead-acid batteries in cycle life, charge acceptance and power delivery.


Duralast provides a generous 3-year replacement warranty on Platinum AGM batteries. This reflects the manufacturer’s confidence in the battery’s longevity and performance over an extended period. The warranty protects against defects and premature failure.

Group Size

The Platinum series is available in group sizes from 24 to 124R to fit a broad range of vehicle applications.

Popular sizes include 34, 35, 49, and 94R for late-model passenger vehicles, trucks, and SUVs equipped with high-demand electronics and accessories.

Cold Cranking Amps

With cold cranking amps (CCA) ratings from 340A to 950A, the Duralast Platinum delivers ample starting power even in extremely cold weather. The top-end 950 CCA model rivals and exceeds many original equipment batteries.

Cranking Amps

Cranking amp (CA) ratings ranging from 425A to 1060A ensure the battery has plenty of power for rapid, reliable engine starting.

This level of high-output performance is essential for vehicles with beefy V8s and diesel engines.

Reserve Capacity

Up to 170 minutes of reserve capacity provides extended runtime for electronics and accessories when the alternator is not charging the battery. This is important for off-road use or frequent short trips.


With an MSRP of around $250, the Duralast Platinum sits at the high end for an aftermarket replacement battery but still costs hundreds less than an OE model in many cases.

The premium price reflects the AGM technology, performance specs, warrantied reliability, and extra service life.

Additional Features

  • Twice the cycle life of conventional batteries
  • Completely leakproof and non-spillable
  • Faster recharge and discharge capabilities
  • Enhanced vibration resistance
  • Superior corrosion resistance
  • Maintains charge extremely well during storage
  • Handles repeated deep discharges without damage
  • High heat tolerance

Our Observation
In summary, the Duralast Platinum AGM battery lives up to its name as a high-end power source designed for vehicles with significant electrical loads and accessories.

The AGM technology, robust performance specs, strong warranty, and proven durability make this battery ideal for upgraded vehicles, trucks, SUVs, classics, race cars, marine applications, solar storage, and off-grid power needs where premium quality is paramount.

 Installation is straightforward as a drop-in replacement for the stock battery. For vehicle owners who demand powerful starting, deep cycling, and maintenance-free longevity from their batteries, the Duralast Platinum is a top choice.

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