Duralast Platinum H8 AGM Battery

The Duralast Platinum H8 AGM Battery is a high performance absorbing glass mat (AGM) battery designed to provide maximum power, durability and flexibility for vehicles with multiple electrical accessories.

In this review, we will take a closer look at the key features and specifications of the Duralast Platinum H8 and see how to stack your vehicle.

specification	detail
Battery Technology	Absorbent glass mat (AGM)
guarantee	Free exchange for 3 years
Group size	49
Cold cranking amplifier	900a
Ampere drilling	1000A
Reservation ability	160 minutes
Voltage	12V DC
Terminal type	SAE – Type A
Negative terminal position	Upper left front
size	13.94in. x6.94 in x 7.5 in.
type	boot
Weight	59 lbs
Positive terminal position	Top right
price	$249.99

Battery Technology

The Duralast Platinum H8 utilizes absorbed glass mat (AGM) battery technology. AGM batteries are valve controlled lead acid batteries that use a fiberglass mat separator between the battery plates to absorb and secure the electrolyte solution.

This allows the battery to be sealed and prevents spills and leaks. AGM batteries have several advantages over traditional flooded lead acid batteries.

• Longer cycle life – Can cycle more than twice as many times as traditional batteries
• Faster Charging – Can be charged in half the time of a traditional battery
• Improved vibration resistance – Immobilized electrolytes allow better vibration treatment
• Low internal resistance – Provides very high cranking current for a strong start
• Works well in cold weather – can be charged at freezing temperatures

The AGM design provides the durability, quick charging and excellent starting power of the Duralast Platinum H8.

guarantee

The Duralast Platinum H8 comes with a 3-year free replacement warranty. This covers the battery for three years from the date of purchase.

If the battery breaks down during that time, you can get a free replacement battery from the Autozone store. Few cars have warranties for this long.

Three-year coverage offers the excellent peace of mind of getting a quality, durable AGM battery.

Group size

The BCI group size for this battery is 49. Group size refers to the dimensions of the battery and its terminal configuration. The group size 49 battery has terminal posts on the right and left sides, measuring approximately 6.94 inches wide x 6.77 inches high x 13.94 inches long.

The H8 fits well with most full-size pickup trucks, SUVs and heavy vehicles with Group 49 batteries. To ensure compatibility, simply double check the factory battery specifications of your vehicle.

Cold cranking amplifier

An important specification for starting batteries is the Cold Cranking Amplifier (CCA) rating. The Duralast Platinum H8 has a CCA of 900 amps. This means that you can power 900 amps for 30 seconds at 0°F, while maintaining a voltage of at least 7.2 volts.

High CCA provides incredible starting power even in frozen weather. It ensures that your engine will quickly turn over on a frigid winter morning.

Ampere drilling

In addition to the cold cranking amplifier, this battery has a cranking amplifier (CA) rated at 1000 amps. This measures the starting ability at 32°F. With ample cranking power, it is ideal for trucks and vehicles with big V8s or diesel engines.

Reservation ability

The Duralast Platinum H8 AGM battery offers a 160 minute spare capacity. This indicates how long the battery can supply 25 amps of current before it drops below 10.5 volts.

The 160-minute high rating gives you plenty of reserve to run additional electronics, such as lights, audio systems, power seats and other accessories, when the engine is turned off. This is a major advantage for battery-powered vehicles with many power-hungry electronics.

price

This premium AGM battery costs $249.99. This will limit the price range for automotive batteries, but its excellent 3-year warranty, high performance specifications and proven Duralast brand are worth the investment.

The price is very reasonable considering you get a 900 cold crank amplifier along with leak-proof AGM technology battery-backed with a 3-year replacement warranty.

Terminal location

The Duralast Platinum H8 uses a standard top terminal post configuration, with a positive post on the right front and a negative post on the left front. Both posts are located at the top of the battery for easy access.

This standard OEM style layout makes the battery quick and convenient to install on a variety of vehicles. SAE terminal type ensures universal compatibility.

size

The length dimensions of 6.94″ wide x 7.5″ high x 13.94″ long make the H8 a suitable size for the BCI Group 49 battery. The dimensions are similar to OEM batteries of the same group size.

Make sure you have sufficient clearance for the specific vehicle battery compartment. At 59 pounds, it's quite heavy and may require assistance in lifting and installing.

Weight

At 59 pounds, the weight of the H8 is the average for lead acid batteries of physical size and capacity. The absorbed glass mat material accounts for a little extra weight compared to traditional flooded batteries.

The heavy-duty polypropylene case helps to keep your overall weight reasonably high while providing protection and stiffness. Weight is not an issue with most full-size vehicle battery compartments.

Voltage

This is a standard 12 volt car starter battery. The 12 Volt rating works with most passenger cars and mild trucks today.

Replace existing 12 volt battery directly without any problems. Before purchasing, make sure your vehicle does not require anything other than a 12 volt battery.

Additional features

Other notable features of the Duralast Platinum H8 AGM battery include:

• Uncertified Non-Suppression – No risk of dangerous acid spills
• Calcium Alloy Grid – Improved Performance and Lifespan
• Pressure Vent Valve – Safely releases excess pressure
• Robust intercell connections – Maximize current flow

Our observation
The Duralast Platinum H8 AGM battery offers excellent performance and durability. The 900 cold cranking amplifier and 160 minutes of spare capacity provide a powerful starting force even in cold weather.

Absorbed glass mat technology ensures spilled vibration and vibration resistance. It has twice the cycle life of a traditional battery, and is faster and longer lasts.

The Duralast Platinum H8 AGM battery is recommended to handle high electrical needs with a combination of power, durability and flexibility. The three-year warranty also offers peace of mind.