Optima Batteries 8040-218 D35 YellowTop Dual Purpose Battery Review

Optima Batteries are one of the most well-known batteries used and trusted by consumers. Through the company’s innovation and technology, they have made a name for themselves over the past 40 years.
The Optima 8040-218 D35 Yellow Top Battery offers a lot of features and this heavy-duty battery is perfect for vehicles that are accessory-loaded.
With its price of less than $300, it is a great purchase since you can totally rely on its benefits for your vehicle. A lot of people has testified to its deep-cycling capability and the extra performance it provides.
If you are looking for a battery that is best for your vehicle, then you might want to check this Optima 8040-218 D35 Yellow Top Dual Purpose Battery Review.

Is the Optima Batteries 8040-218 D35 Yellow Top Dual Purpose Battery a Great Purchase for You?

This battery is perfect for you if:
You are looking for a quality battery for your vehicle
You are in need of a battery that has high-end features
You want a deep cycle battery
Longer battery life is a priority
Faster Recharging is a big factor for buying decisions
You want a maintenance-free battery
A lot of car enthusiasts testified that this battery is a great one. But definitely, it’s not for everyone. 
And this is not the best pick for you if:
You are looking for a cheaper battery
Features offered by the battery is not a priority
You want a battery for temporary  replacement  only

Quick Summary

Price: Below $300
Weight: 36.4 pounds
Product Dimensions: 9.4 x 6.8 x 7.7 inches
Reserve Capacity : 98 mins
Voltage: 12 volts
C20 Capacity: 48 Ampere Hour
Post Type: SAE Post
CCA: 620 Amp

Features and Specifications

Deep Cycle Battery And Cranking Power

Deep Cycle Battery provides a steady amount of current for a long period of time which is ideal for the ultimate source of power.

3x Longer Life
With this feature, you can be sure that the money you spent buying this battery is worth it since you do not need to change your battery over and over again. With this, you are guaranteed that it will last for a couple of years.
Maintenance-free batteries are also known as VRLA or Valve Regulated Lead Acids. With this feature, your battery does not require watering, but of course, regular inspection is still recommended.
Having a good quality battery like Optima Batteries 8040-218 D35 YellowTop Dual Purpose Battery will let you have the advantage of being guaranteed for a long time!
Vibration Resistant
Vibration from appalling road conditions is the biggest cause of battery failure that is why Optima made sure to develop and address this problem through this feature.
This feature, with the help of the spiral winding design that gives more efficient output, ensures that even if you drive through a rugged road, your Optima battery can withstand all the poor road conditions.
Virtually Spillproof
You can be sure that your battery will have a greater life cycle because of this feature. With this, your battery is completely sealed which means it will not have any leakage and will result to a much higher durability.
Faster Recharging
Usually, it is advised to have your battery charged at 10 amps, 13.8 to 15.0 volts while other batteries are frequently charged at 2 amps.
Accordingly, charging at 1 amp means a total of 48 hours charging; 2 amps mean 24 hours. Hence, 10 amps mean 3.6 hours only! It will definitely save you time in completely charging your battery.
Spiral Cell Technology
This technology is the heart of Optima. It consists of spiral-wound cells made out of two pure lead plates covered in a precise coating of lead oxide. This allows more power and frequently outweighs flat-plate batteries.


Maintenance Free
You will not have to worry about your battery anymore since Optima made sure that your Yellow Top Battery does not need watering anymore.
Power Packed
Because of the increased plate surface area, you are guaranteed with its greater starting power.
No More Leak
Optima made sure to continuously improve their products. With that, Glass Mat Separators were developed to allow your battery to be spill-proof.
Faster Recharging
Optima Batteries 8040-218 D35 YellowTop needs less than 4 hours only for the battery to be completely charged. It is a lot faster compared to the usual 24 hour charging of other batteries in the market.
The company offers 36 months replacement period from the date of original purchase. If the battery is proven to have a defect in material/s, the battery will be replaced free of charge.
Vibration Resistant
A much greater tolerance for rough roads and such is what makes your Optima Batteries durable and last longer. It can withstand any poor road condition and you can be sure that it will not need for a replacement so soon.


Quite Pricey
Optima 8040-218 D35 is not one of the cheapest batteries in the market. But even so, its features and specifications can justify its price.
Charge it Carefully
To avoid overcharging and damaging the battery, you need to charge it carefully because the battery uses Absorbent Glass Mat Technology

Actual Feedbacks and Review

“Over the past 10 years these have been consistently better performing than others.”
“I was very happy with my packaging. After I did all the research on this Optima D35 for about a month, I must say, that it was a damn fine purchase. “

Final Words: Is it worth the price?

Choosing the best battery for your car may be challenging because there are so many options in the market.
If you are looking for a battery that has a reputable quality and durability, then I would definitely recommend you to purchase the Optima 8040-218 D35 YellowTop Dual Purpose Battery.
Features like Deep Cycle, Maintenance-Free, Spillproof, Longer Life, and Vibration Resistant makes this product worth the price of less than $300. When you come to think of it, you will even save more by not buying a replacement after just a couple of months.
However, it is still entirely up to you whether you think this Optima 8040-218 D35 YellowTop Dual Purpose Battery is worth the purchase depending on your buying decisions.

Frequently Asked Questions:

Who should use the Optima Battery 8040-218 D35?

These batteries are best suited for those who require a battery with a high starting voltage of 12 volts and an excellent reserve capacity. The Optima Battery 8040-218 D35 is also suited for those who are looking for a fast recharge time, which is 3.6 hours only, even as low as 10 amps. Those who need a well-built battery that won't fail because of vibration also suit this product well.

How do you properly install the Optima Battery 8040-218 D35 in your vehicle?

You should first ensure that the battery is in a cool, dry place. It should be placed on a horizontal position, with both terminal covers removed. The Yellow Top Battery from Optima has to be connected to the vehicle's chassis by using either copper or lead. Always connect it to an "above-ground" part of your chassis, so as not to cause any electrical short-circuit.

Can you use the Optima Battery 8040-218 D35 with a Hybrid or a Plug-In Hybrid?

Yes. You can use the Yellow Top Battery from Optima with other battery technologies as well. Since there is no companion connection, it doesn't pose any problems while connecting to the non-GM vehicle or as a power source for solar panels.

What is the warranty period of the Optima Battery 8040-218 D35?

The warranty period for this product is 36 months from the time of original purchase. The battery can be replaced free of charge, should it have any defect in material/s, within this period. However, the company will only handle and do replacements on batteries that are within its expiration date.

Does the Optima Battery 8040-218 D35 contain acid?

No. It does not contain acid and is deemed as a sealed battery. The batteries are treated with a protective coating, which prevents any leakage. This protects the battery from corrosion and is an additional precaution to ensure its optimum durability.

Is it safe to charge your Yellow Top Battery at 10 amps?

This is completely safe to do so, as long as you use the correct level of amperage. It is suggested that you charge the Yellow Top Battery at least to 2 amps. If you charge it at 1 amp, the battery will take nearly 4 hours to be completely charged.

How do you know when your Optima Battery 8040-218 D35 needs a replacement?

The best way to make sure that your Yellow Top Battery from Optima is still working effectively is by checking its specific gravity method. If at any point, the specific gravity drops to less than 1.

What kind of maintenance is required for the Optima Battery 8040-218 D35?

It is good to check the electrolyte levels every few months. If there is low electrolyte, just add water in it. However, do not overfill it with water. You can also clean the battery terminals every once in a while to ensure that there are no corrosion build-up.

Is the Optima Battery 8040-218 D35 a good fit for low performance vehicles?

The Yellow Top Battery from Optima is a battery that is best suited for vehicles that require fast battery charging and quick starts. It will definitely be able to provide you with this, as long as the vehicle has the required capacity and voltage. With its high performance and long lasting time, it is definitely a good fit for these vehicles.

Is it possible to overcharge the Optima Battery 8040-218 D35?

It is possible for the battery to be overcharged. This may result in a shorter life of the battery, if not taken care of properly. As a precautionary measure, always charge the battery at least 2 amps. It is best to keep it charged overnight, so that it doesn't lose its efficiency to a great extent.

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