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OPTIMA

OPTIMA Batteries High Performance D34/78 YellowTop Dual Purpose Sealed AGM Car, Truck and SUV Battery, 750 CCA, Dual Terminal, Maintenance Free, Versitile Mounting

  • Based on 1,539 reviews
Condition: New
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4th of July Sale · 9% off was $339.99

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Features

  • BATTERY SPECS: 12-Volt, 750 Cold Cranking Amps, Size: 10" x 6 7/8" x 7 13/16" tall, Weight: 43.5 pounds, Dual SAE & GM Terminals, C20 Capacity: 55 AH
  • RESERVE CAPACITY of 120 minutes for constant performance. Faster charging capabilities.
  • SPIRALCELL TECHNOLOGY: Spircalcell Technology with 99.99% pure lead delivers more power and consistently outperforms conventional flat-plate batteries. Optimal starting power even in bad weather.
  • LONG LASTING: Fifteen times more resistant to vibration than standard flooded battieres for durability and Up to 3 times longer life vs. standard flooded batteries.
  • MAINTENANCE FREE: for maximum convenience. Ideal for High electrical demands.

Description

The OPTIMA YellowTop high-performance AGM battery is one of the only true dual-purpose automotive batteries available. With premium cranking power and unparalleled cycling capability (rechargeability), it is perfect for modern accessory-loaded vehicles. With a 40-year history of technological innovation and engineering OPTIMA products offer unstoppable power for extreme enthusiasts. Trucks with winches, vehicles with high-demand audio systems and commercial vehicles can all rely on this battery to provide ultimate starting and deep-cycle power.

Brand: OPTIMA


Size: 10 x 6-7/8 x 7-13/16 inch


Product Dimensions: 6.88"D x 10"W x 7.81"H


Terminal: SAE Terminal


OEM Part Number: 8014-045


Automotive Fit Type: Vehicle Specific Fit


Manufacturer: Optima Batteries


UPC:


Global Trade Identification Number: 54, 14


Brand: ‎OPTIMA


Size: ‎10 x 6-7/8 x 7-13/16 inch


Product Dimensions: ‎6.88"D x 10"W x 7.81"H


Terminal: ‎SAE Terminal


OEM Part Number: ‎8014-045


Automotive Fit Type: ‎Vehicle Specific Fit


Manufacturer: ‎Optima Batteries


UPC: ‎721112767383 114050004502 721112819914 811405000454 811405000218


Global Trade Identification Number: ‎54, 14


Model: ‎9014-045


Item Weight: ‎43.5 pounds


Country of Origin: ‎Mexico


Item model number: ‎OPT8014-045


Batteries: ‎1 12V batteries required. (included)


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎8014045


Amperage: ‎55 Amps


National Stock Number: ‎6140-01-441-4272


Date First Available: January 18, 2007


Frequently asked questions

The OPTIMA D34/78 YellowTop battery is considered dual purpose because it is designed to provide both deep cycling capabilities and high cranking power. This means it is suitable for vehicles that require a lot of power to start, as well as for those that run a lot of accessories that drain power, like audio systems or winches.

Yes, the OPTIMA YellowTop D34/78 battery is suitable for cold climates. It features a high cold cranking amps (CCA) rating, which means it has the ability to start your vehicle in cold weather conditions where other batteries might struggle.

The lifespan of the OPTIMA YellowTop D34/78 battery can vary depending on usage and maintenance. Generally, with proper care and regular charging, it can last longer than traditional lead-acid batteries, potentially up to 3-5 years. It's important to follow the manufacturer's guidelines for charging and maintenance to maximize the battery life.

Yes, the OPTIMA D34/78 YellowTop battery can be mounted in virtually any position except upside-down. Its AGM (Absorbent Glass Mat) technology prevents acid leakage and allows for flexible installation in tight spaces, making it a convenient choice for varied applications.

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Top Amazon Reviews

🚀 Abunda's Overview

This is our summary and key points to consider based on customer reviews.

The reviews for the Optima YellowTop Dual Purpose Battery are overwhelmingly positive, with users praising its longevity, reliability, and performance across various vehicle types and weather conditions. The only significant detractor comes from issues unrelated to the battery's functionality, focusing instead on warranty service complications. This battery is noted for its ease of installation, with no modifications needed for several car models, and its ability to hold a charge in extreme conditions.

Pros

  • 🔋 Long-lasting performance across diverse vehicle types.
  • 🚗 No modifications needed for installation in several car models.
  • ❄️ Excellent cold-weather reliability, starting engines in low temperatures without prior charging.
  • 💪 Robust build quality and frustration-free packaging.

Cons

  • 💲 More expensive than other batteries and OEM options.
  • 🕒 Some users report newer models do not last as long as older versions.
  • 📜 Warranty service can be difficult to navigate, based on a customer's isolated experience.

Should I Buy It?

If you're in the market for a reliable, long-lasting battery that can handle demanding weather conditions and require no modifications for installation, the Optima YellowTop Dual Purpose Battery is an excellent choice. Despite its higher price and some concerns over the longevity of newer models compared to older ones, its performance and reliability make it worth considering for those willing to invest in quality.

    • Optima fit in 2000 Mustang GT with no modification needed
Product Packaging: Frustration-Free Packaging
Review Image by B J B J
Review Image by B J B J
Review Image by B J B J
Review Image by B J B J
Review Image by B J B J
Review Image by B J B J
Review Image by B J B J
Fit just fine in my 2000 mustang GT battery holder. No modification needed. No clearance issues etc. I should have bought years ago. The one I got is: Optima Batteries 8014-045 D34/78 YellowTop Dual Purpose Battery The battery was about 1mm longer than the tray (from front to rear of car vs left to right), but the tray just stretches out to accommodate. I laughed and said to myself - "Are you serious?!? that's what I was all worried about?!? Lol!" "Good grief - this fit just fine!!! Lol" :-) 1st pic shows Mustang 2nd pic is looking at battery from drivers side - it shows how the tray stretches to accommodate the 1mm increase in size 3rd shows from the drivers side looking at the front of the battery in the mustang - the thing to notice is that the front side didn't need to stretch since it's already stretched on the back side 4th pic shows mustang from the front and how it's installed without the blue adapter, without the large yellow tray adapter, and without the larger of the 2 red adapters (I left them on top to show how they're not used) 5th picture is from the drivers side looking over the battery to show how I used the red clip that came with the Optima. This red clip is the same as the stock black clip. But the new one looks nicer. 6th picture is from the front at headlight level - they show how I didn't run into any clearance issues. 7th shows no clearance issue. The pictures help. See, the Optima site doesn't list it as fitting in the 2000 mustang GT. But yet we all know people put them in their mustangs... So the discrepancy between the 2 kept me from buying for a long time. But all you do is drop it in, and lock it down. In hindsight, it was really no different than any other battery I have ever installed. I used the new clamp that came with the battery vs the factory because because the new one was clean, red, and looked cool, but it was identical in shape to the factory clamp. There were a few other clamp items (blue tray items) for applications in other vehicle types, and they caught me off guard and so I tried to use all of them - partly because I thought they looked cool, but most because I didn't realize that they're actually for different vehicles; it ended up just being the red one, which was the same as the factory black clip that came with the mustang. The other ones would raise the battery with no benefit. I don't remember if there were any clearance issues if it was raised, but don't bother with them unless you're just having fun with the battery changing project and just want to see. You might save them in case you ever get a new car and want to bring the battery - Optima batteries are notorious for lasting a super long time. But yeah - the yellow top Optima fit just fine in 2000 mustang GT. I was all worried that I was going to need to get an F150 tray from a salvage yard (which was a pretty neat idea that someone had done successfully), or order a new cool fancy tray (but those aren't cheap). Neither are necessary, but they're good to know because the knowledge helps guarantee that can somehow fit if your experience is somehow different than mine. But you won't need to do it. You can still do stuff like that it you want, but do it after you put your battery in - because if your tray is the hard plastic one like mine, there is absolutely no problem putting it in. No modification to your tray is needed. I was very happy about how easily it went in. Can't believe I waffled for years over getting one. The low price on Amazon helped too. The absolute best battery I could get otherwise was around 120 dollars, but not nearly the same quality as the Optima. The Optima red top wasn't much more than that on Amazon, but I went yellow because it is an even better battery. Both the red and yellow are great though - WAAAAY better than other batteries. But most people know that about Optima batteries. I don't think they need people to endorse them. I'm writing this not so much because of Optima's quality (already known), but more so 2000 Mustang owners know that they can get this and be happy. It should be the same for any 99-04 mustang, the red or yellow top. But my knowledge is first hand for the 2000, and the Optima Yellow top Optima Battery that I'm rating: Optima Batteries 8014-045 D34/78 Yellow Top Dual Purpose Battery ... show more
Reviewed in the United States on October 22, 2016 by B J B J
    • Yellow tops rule
Product Packaging: Frustration-Free Packaging
Great battery
Reviewed in the United States on June 24, 2025 by NTM
    • Amazon wont ship to CA???????
Product Packaging: Frustration-Free Packaging
The Yellow Top batteries are the ultimate in performance and longevity... they last far longer than a 'red top' and have PLENTY of CCA to start any engine... these are in an 8.1 liter engine... my issue is not with the battery, but with AMAZON. I just bought these batteries in January of 2025...(3 months ago)... now AMAZON will no longer ship to CA... WTF??? ... show more
Reviewed in the United States on April 23, 2025 by Greg Burns
    • My Optima Y-Top 34/78 Batt Failed (lost 2 cells) 15 months after ship & 8 months after install!
Product Packaging: Frustration-Free Packaging
CAUTION, You may want to consider risk of buying an Optima battery, BUT DEFINITELY DO NOT BUY ONLINE OR VIA AMAZON. I have used Optima Y-Top batteries on ALL of my cars/trucks since they first came out. I generally got 5 to 6 years life even hot in South Florida (Miami to Stuart). I never had a warranty issue. I found them to be very robust batteries even if you did something stupid like leaving lights or a load on. When they finally degraded, the after charge standing voltage would gradually drop indicating it was time to replace. Even in a degraded condition, they would easily recharge or jump start well enough to allow time to get a new battery. So I finally trusted this brand enough to buy from Amazon, & NOW IT LOOKS LIKE I GOT SCREWED for a $330 battery. Battery was fine on 11/20/24. On 11/22/24, my new Yellow top 34/78 battery failed 15 months after it shipped from Amazon & 9 months after I installed it. Voltage suddenly dropped to an unrecoverable 8V or less. I had read some bad reviews on Corvette forums, but discounted them based on my prior experience. I bought in August 2023, but delayed the install as the old degraded Y-Top (Year 2018 date code) was still able to run reliably in my truck. On 11/24/24, I contacted the seller for a warranty claim via Amazon link on 11/25/24. After 6 days, I have received absolutely no response (crickets). Now that I review the warranty requirements, I see that you are required to ship the battery back to the seller. For a non-business personal ship, UPS would charge well over $100 for a 44lb battery! If my valid warranty claim is resolved fairly, then I will revise this notice. HOWEVER, BASED ON HOME I HAVE BEEN IGNORED FOR A FULL WEEK, DO NOT BUY OPTIMA BATTERIES ON AMAZON. ... show more
Reviewed in the United States on December 1, 2024 by RickR
    • Can go weeks without need to recharge.
Product Packaging: Frustration-Free Packaging
The best batteries available. Especially for vehicles that you do not run regularly.
Reviewed in the United States on May 4, 2025 by PoliDoc
    • Yellow top Optima
Product Packaging: Frustration-Free Packaging
As usual top quality Battery. Awesome
Reviewed in the United States on May 4, 2025 by Mike Wright
    • Heavy
Product Packaging: Frustration-Free Packaging
Shipping Box flimsy. Should be shipped in stronger reinforced box. One 'ding' in plastic battery casing. Battery works great. My last onevlasted (in Las Vegas) for 10 years.
Reviewed in the United States on March 23, 2025 by Gregory Rice
    • Optima doesn't seem to be what it used to be.
Product Packaging: Frustration-Free Packaging
Old optima batteries seemed to last longer, hold a charge longer, etc. these new ones cost more than oem/cheap local parts store brand batteries and don't even last as long.. definitely don't hold a charge as long. i have to keep a charger on my yellow top in my classic car and the last one died after about 3yrs. old optimas would last 5+ easily. ... show more
Reviewed in the United States on April 8, 2024 by George

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