UniEnergy Technologies Battery » Diehard battery VS interstate battery: What’s the difference?

Diehard battery VS interstate battery: What’s the difference?

We know that getting the right car battery can be hard enough if you know nothing about them, but if you’re also concerned about how to get the best value, then it might seem like an impossible task.

But it doesn’t have to be a hard choice – Diehard and Interstate are 2 popular types of car batteries, but each has its advantages and disadvantages. By reading this guide on diehard vs interstate batteries, you’ll learn everything there is to know about both batteries, so you will be able to make an informed decision.

What are diehard batteries?

DieHard is a well-known brand in the industry and their Platinum AGM batteries are a staple in the car community. This is an AGM battery with a voltage of 12V. In addition to acting as a cranking battery, these AGM batteries provide power to your motor. Due to its non-alloy lead plates, it has one of the most reliable designs available on the market.

Diehard car batteries are more expensive, have a longer life and are generally easier to maintain. Batteries manufactured by Diehard are made in the United States.

Diehard batteries use lead-acid batteries, which hold more of a charge when compared to other types of car batteries. They also have fewer electrolytes and don’t need to be watered as often, which means it’s less likely that the battery will leak and damage your car.

They can be a good choice if you’re looking for a reliable battery that’s likely to last a long time. If you’re looking for a diehard car battery, you should look for a model with a high cold cranking amps (CCA) rating. The higher the cranking amps, the better the battery will be able to start a car in cold weather and where the engine is harder to start.

What are diehard batteries?
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What are Interstate Batteries?

Interstate Batteries (also known as marine batteries) is another popular car battery brand that is manufactured in Mexico.  Like the diehard brand, interstate batteries are one of the more expensive options, but they are also very reliable high-quality batteries.

Interstate batteries are also known as “mfr” batteries because they’re manufactured specifically for certain car models. This means that they are a better choice if you want a battery that’s guaranteed to fit perfectly in your car.

What are the differences between interstate and diehard batteries?

As we’ve discussed, it’s important to know how to pick the right car battery for your car. The most important thing when comparing diehard vs interstate batteries is the cranking amps (CCA) rating. Besides, there are also other factors to compare. Here are they:

1. Price

If you’re looking for a battery that’s on the cheaper side, then an interstate battery might be the way to go. Interstate batteries are less expensive than DieHard batteries while providing comparable performance in a variety of situations. They also come with a 75-month warranty, which means that you will get a free replacement. Diehard batteries come with a warranty as well, but the company has common problems with respecting them.

If you want to get the most out of your money, then it makes sense to spend a little more and get a diehard battery. Diehard batteries are meant to be high-quality and designed for frequent use, so they are more expensive than an interstate battery. But in the long run, they will last much longer than an interstate battery.

2. Features

The diehard battery is designed to withstand vibrations and is meant for use in cars that are driven for long periods in cold weather conditions. On the other hand, the interstate battery is a lower-quality battery, so it is not meant for use in harsher conditions. Interstate batteries are not meant for heavy-duty use and will not last as long.

Another benefit of diehard batteries is their ability to withstand extreme temperatures – the diehards can even function in freezing weather whereas other car battery brands aren’t as durable.

A diehard battery will last up to two times longer than an interstate battery. Diehard batteries also tend to be more durable because they are made with thicker lead plates and heavier-duty materials.

Even if both batteries don’t require a lot of maintenance, the downside of diehard batteries is that they need a little more care, which can be inconvenient. Another downside of diehard batteries is that some car owners may not know how to maintain them properly, which could end up costing them more money in the long run.

3. Endurance

The endurance of a battery is related to how many times it can be charged and discharged before it needs replacing. This durability is affected by a variety of elements such as weather and temperature conditions, driving, and the charging mechanism.

The endurance of diehard batteries is around 400 cycles, while that of interstate batteries is between 600 and 700 cycles, but both last around 3 to 5 years.

4. Manufacture

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The main difference between diehard and interstate batteries is their construction. Diehard batteries are lead-acid batteries with a flooded construction, while the others are absorbed glass mat (AGM) batteries with sealed construction.

The diehard battery uses a lead-acid solution that contains distilled water. The filtered water acts as an electrolyte that is needed to produce power from the battery. The diehard battery’s flooded construction means that the lead-acid solution we mentioned earlier is held inside a container. This construction makes it easier to fill the battery, but it also means that it is more likely to leak and spill.

5. Lifespan

The lifespan of the diehard battery is going to be much greater than that of the interstate battery, but this does not mean the interstate battery will die instantly. Most diehards will last for about 4 to 5 years before they need to be replaced, whereas most interstates will last for around 3 years.

This is caused by the differences in the reserve capacity. Diehard has a larger reserved capacity, which makes them last a little longer.

Which one is better for you?

When considering diehard vs interstate batteries, it’s important to think about how often you drive and the conditions in which you drive, to make sure the battery life will last as long as possible.

Your climate should also help you make a good choice: if you’re driving your car frequently, in cold temperatures, and for long distances, then you should choose a diehard battery over an interstate battery because it will last longer. If you’re driving infrequently, in warm temperatures, and for short distances, then an interstate battery will be more than sufficient.

In any case, before you choose a car battery, you should check its ampere-hour rating so that you get the right one for your car. When it comes to the type of car you own, you can find and purchase the perfect size from both companies: Automobiles, trucks, RVs, boats, golf carts, and so forth.

The wrong battery might seem cheap, but it will end up wasting your money and being a hassle to deal with. It’s a good idea to pick a battery based on its CCA rating and then find out more about it later once you’ve made your choice. This will help you avoid being swayed by details that don’t really matter as much.


So now that you know the difference between diehard and interstate batteries, which one should you pick? It really depends on what’s more important to you. If price is the only thing on your list, then interstate will be right for you. If safety or durability is what matters to you most, then go with diehard.

Both have pros and cons and only your personal opinion can dictate what will work best for your car. We hoped this helped you and if any questions you have, leave them in the comments!

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