Optima 25 RedTop Starting Battery Review: Here’s Why It’s Our Budget Pick for 2021

The Good

It has a powerful starting burst, which is more than enough to start your car even in the midst of winter. At 90 minutes, its reserve capacity is satisfactory and is suitable for most vehicles.

The Bad

While it works perfectly in starting your ride, it may not be suitable with electronics-laden vehicles such as those with power sliding doors and entertainment system since they require a higher working load. There are some complaints that for some vehicle models, it does not fit as snugly as expected due to its design and some modifications had to be done.
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The Bottomline

A good choice for starting vehicles especially those with average electrical load requirements.
No sane driver would ever dream of experiencing a battery problem that could potentially ruin his entire day. But life sometimes has a strange sense of humor and those little problems - that wouldn’t have been a big deal in ordinary days – often strike at the most inopportune of times. For instance, you might find that your trusted and reliable ride, which did not have any problem for years, just suddenly won’t start due to a minor issue with the battery. And it so happened just as you’re trying to rush to a very important meeting to close the deal of a lifetime.
Well, that’s life and as they say, it sometimes sucks. But the good thing is, your vehicle’s battery doesn’t have to be as problematic. If you choose the right option for your car, you’ll avoid tons of vehicle-related troubles and, perhaps, even live a less stressful life. That’s why we’re doing this Optima 25 RedTop review for you.

Power When You Need It Most

One of the most problems drivers frequently encounter is that their cars won’t start when the weather is cold. There is an explanation for this and it has something to do with the temperature, as you’ve probably suspected. Batteries give electricity as a product of a chemical reaction. This process, however, can be affected by temperature. The colder the environment is, the less current it will produce since the cold is interfering with the chemical reaction.
That is why you need a product that’s specifically designed for such conditions. One way to determine how it might perform under such condition is to take a look at its CCA rating. The acronym stands for cold cranking amp, which is a measure of the electrical current it can produce at 0º F. This is also the major indicator of how well it can start your vehicle in cold weather.
As its name suggests, the Optima 25 RedTop Starting Battery is optimized for such conditions. It features 720 Cold Cranking Amps, which is more than enough to start most vehicles in the midst of winter. Just to be sure though, check your car’s owner manual for the recommended CCA rating. In fact, it is specifically designed for flawless starting each and every time with its capability of delivering a strong starting burst of power to start the engine ignition.
If you’ve been researching the net, you’ve likely noticed the term reserve capacity coming up a lot in the description and specs of each product. The reason it’s placed there is that it is also very important and should be factored into your final choice. Reserve capacity of a product is the estimated length of time that it will give your vehicle enough current to power the necessary electrical systems and keep them running.
In the case of this Optima 25 RedTop, it has a reserve capacity of 90 minutes. This is very helpful in case your vehicle encounters a problem in its charging system. In this case, you’ll have to rely on its power alone to run the windshield wipers, electric pumps, and headlights. Ninety minutes should give you enough time to reach a safer location or an auto repair shop to have the problem fixed.

Durable and Versatile

For those who have to drive over dirt tracks or unpaved roads, chances are their batteries won’t last as long as those who drive on paved city streets even if the mileage in the same. The reason is that the vibration experienced when driving on bumpy roads can hasten battery failure.
That is unless you get a product that is specifically designed for this rough scenario, such as the Optima 25 RedTop. It is 15 times more resistant to shocks and vibration compared to regular options, which makes it even suitable for use in offroad trucks, racing, and other high-performance vehicles.
For a regular car, this vibration resistance ensures that you’ll enjoy worry-free driving for years to come. It is also spill-proof, which means you can mount it any way you prefer.

Pros and Cons of Optima 25 RedTop Starting Battery


+ Increased size and capacity to meet the demands of e-cars, trucks and minivans.

+ 14% better than Interstate’s regular battery and 10% better than Interstate’s Yellow Top.

+ Can handle higher temperatures.

+ Better than a Yellow top battery owing to its higher CCA capacity of 720 - 735.

+ Higher CCA means better starting power since starting batteries need more volts and current to jumpstart the car engine.

+ Higher CCA also allows for better cold cranking times, which are necessary for all cars, especially those that use engines with gas or diesel fuel.

+ Less likely to develop internal shorts.

+ Higher CCA allows for a longer time before the battery needs to be replaced.

+ Leak-proof, spill-proof design allows you to mount it in any position with no worries about acid leaking out.

+ Longer lifespan compared to other brands.

+ Strong acid that will not leak.

+ Spill-proof design so you can mount it any way you want.

+ Perfect for both city and off-road use.


- The battery comes with no instructions and there were reports of customers having trouble installing the battery in their vehicles.

- Some people have a problem connecting the negative and positive terminal to the battery, which causes the battery not to work properly.

This problem can be solved by purchasing a battery terminal connector. Optima also recommends that you use their lighter adapter to charge the battery. Some customers have complained about bad customer service.

- Does not fit all cars.

- Some car chargers take a long time to fully charge it.

But I Just Wish…

While this product is designed for flawless engine ignition, it is not designed for vehicles with a lot of electronic accessories. For example, if you’re vehicle has a higher electrical load due to multiple electronic accessories, entertainment system or power sliding doors, Optima’s YellowTop, which is designed for high load scenarios, would do the job better.
This product fits most cars, trucks, and motorcycles. However, there are a few complaints saying that due to the battery’s design, the fit is not as snug as they expected and they had to do some modifications instead. Before buying, better do additional research or ask your friendly mechanic if this product is compatible with your vehicle.

Frequently Asked Questions:

Are Optima Batteries still good?

Optima batteries are still good. The company has made a few changes to the packaging since 1998, but the model numbers stay the same. Optima also released a new battery for their YELLOWTOP line with higher CCA capacity. It is the same size and voltage just more powerful.

How many Amps does the Optima 25 RedTop Starting Battery deliver?

Yes, it comes with a one-year warranty. You can also download the warranty that applies to your Acer product and even extend it. Go ahead and check out this website for more information regarding the warranty on your product:

How is Optima 25 RedTop better than regular batteries?

Optima batteries are made from the newest battery technology on the market. They are spill-proof and can be mounted in any position without leaking acid. Plus, this car battery will not leak even if it’s damaged, it will just “dry up”.

What's the difference between Redtop and Yellow Top batteries?

The difference between the two batteries is in their color and capacity. Yellow top batteries are for heavy duty use, like golf cart applications. This battery will be rated at higher amps and can handle more power than a redtop battery. They also come with thicker plates that last longer.

What color Optima battery is best?

It depends what application you are using the battery for. For a vehicle, Red is better than yellow. Yellow is best for high-heavy duty use, like powering golf carts or large motors.

How do I know if my Optima battery is bad?

You will typically know if a battery is bad if your car doesn't turn on, and the battery is old or has been used a lot. There are usually no signs of a bad battery unless your headlights aren't bright or you don’t have any power at all.

Which is better Optima or Interstate Battery?

Both are good batteries and come in different capacities. Interstate is the older and more popular brand while Optima is newer and has higher energy capacity. If you need a battery for heavy duty, I would recommend Interstate. This battery is also spill-proof, which means you can mount it in any position without worrying about acid leaking.

How do I bring my Optima battery back to life?

Bring your battery back to life by taking it to an auto shop. They are able to test a car battery and determine if it is damaged. If the battery has no fault, you should buy a new one and have the old one tested for future use.

How long do Optima Redtop batteries last?

This battery can last from 4-8 years, depending on the car and how you take care of it. If you are a new driver with little experience or language barrier, chances are your car battery is probably dead by now.

How long does it take to charge a dead Optima battery?

It depends on your battery charger. Some car chargers can fully charge a dead Optima battery in 4-8 hours, but some chargers will take 12-24 hours. If you think your battery is dead, call the Sears auto repair number and have them test it before you charge it.

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