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OPTIMA Batteries 8004-003 34/78 RedTop Starting Battery

4.5 4.5 out of 5 stars 1,570 ratings

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Purchase options and add-ons

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
Number Of Cells 6
Terminal SAE Terminal
Vehicle Service Type
Passenger Car
Voltage
12 Volts
Battery Cell Composition
Lead-Acid, AGM
Item Weight
38.8 Pounds

About this item

  • 12-Volt, 800 Cold Cranking Amps, Size: 10" x 6 7/8" x 7 13/16" tall, Weight: 38.8 pounds, Dual SAE & GM Posts
  • Reserve capacity of 100 minutes for constant performance
  • Optimal starting power even in bad weather
  • This item is not for sale in Catalina Island. Battery Charger:13.8 to 15.0 volts, 10 amps maximum, approximately for six to twelve hours. Alternator:13.3 to 15 volts, no amperage limit
  • Fifteen times more resistant to vibration for durability. Mountable in virtually any position. May include convenient carrying handle for ease of placement in battery holder.
  • Completely spillproof, mountable in virtually any position
See more product details

Frequently bought together

$279.99
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Ships from and sold by Amazon.com.
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$9.99 ($1.25/Count)
Get it as soon as Monday, Apr 1
In Stock
Sold by Hawrey US and ships from Amazon Fulfillment.
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$10.69 ($1.07/Count)
Get it as soon as Monday, Apr 1
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Sold by TKDMR Store and ships from Amazon Fulfillment.
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OPTIMA Batteries 8004-003 34/78 RedTop Starting Battery
OPTIMA Batteries 8004-003 34/78 RedTop Starting Battery
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Price$279.99$299.99$249.99$279.99$299.99$309.99
Delivery
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Customer Ratings
Value for money
3.3
3.5
3.2
3.7
3.0
3.4
Longevity
3.2
3.1
3.2
3.7
3.0
3.0
Easy to install
4.3
5.0
4.0
4.3
Battery life
3.4
4.6
2.7
4.0
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
compatible vehicles
Passenger Car
Truck
Passenger Car
size
10 x 6-7/8 x 7-13/16 inch
10 x 7-1/4 x 7-3/16 inch
10-5/16 x 6-13/16 x 7-5/8 inch
10 x 6-7/8 x 7-13/16 inch
10 x 6-7/8 x 7-13/16 inch
10 x 6-7/8 x 7-13/16 inch
terminal type
SAE Terminal
SAE Terminal
SAE Terminal
SAE Terminal
SAE Terminal
SAE Terminal
voltage
12 volts
12 volts
12 volts
12 volts
12 volts
12 volts
number of cells
6
6
6
6
battery composition
lead acid agm
lead acid
lead acid agm
lead acid agm
lead acid
lead acid agm
weight
38.8 pounds
39.5 pounds
32 pounds
37.9 pounds
37.9 pounds
42.9 pounds

From the manufacturer

banner redtop optima
Redtop

RedTop 34-78 shown above

redtop
Our Promise

Ultimate Power, for the ultimate professionals, for the ultimate enthusiasts. And for the ultimate experience. That's our goal each and every day. We look for every technological advantage to push the limits of what's possible and leave pretenders in our dust.

We manufacture our own batteries in our own facilities to our demanding standards.To ensure quality and consistency in our batteries, no matter where they are being sold - our batteries are never re-labled or re-spec'd.

Gentlemen, Start Your Engines

The RedTop high-performance AGM battery is the ultimate starting battery designed to deliver a powerful burst of ignition power for a reliable start-up every time. It will withstand hard launches, extreme corners and is race proven for every road every day whether it's used as a truck battery, automotive battery, or for other applications. Its reputation as a truck battery or automotive battery is unsurpassed.

  • Strong starting burst
  • More than 15 times the vibration resistance
  • Spillproof, mountable in virtually any position
  • Maintenance-free with up to 2x longer life
  • Faster recharging
  • With impressive high-power delivery and extreme resistance to the most common causes of battery failure, the RedTop is ideal for trucks, SUVs, hot rods, street cars.

SpiralCell Technology

At the heart of every OPTIMA battery is a series of individual spiral-wound cells comprised of two pure (99.99%) lead plates coated in a precise coating of lead oxide. One coated plate is positive and the other is negative.

The unique manufacturing process of spiral winding continuous lead plates is far more precision-controlled and expensive than building traditional flat plate AGM batteries. Custom automated cell-winding machines are required to maintain the close tolerances required to maintain quality and performance. Critical tolerances, temperatures, humidity and automated processes are maintained and constantly monitored.

OPTIMA has built over 100 million individual spiral cells since the early 1990’s.

What's the difference between OPTIMA RedTop, YellowTop, and BlueTop Batteries?

redtop

yellowtop

Bluetop

RedTop

For normal engine starting where an alternator immediately monitors the state of charge and provides energy to the battery whenever it is needed.

This would describe most stock vehicles, including: automotive and RV underhood starting, heavy equipment where starting is the primary function, and diesel vehicles without aftermarket electronics.

YellowTop

Use this when electrical loads are higher than average, or when the discharge cycle is more than typical engine starting, such as vehicles with multiple electronic accessories and vehicles without alternators. This can also include vehicles with a lot of factory electronics such as power sliding doors and a DVD player. Examples also include: racing vehicles without a charging system, dedicated drag racers, diesel powered vehicles with aftermarket electronics, and vehicles with inverters, winches, or other accessories.

BlueTop

The BlueTop starting battery (dark gray case) is to be used when a dedicated starting battery is required and it should never be used for cycling duty. Use a BlueTop starting battery for marine applications and RVs when the battery's only function is engine starting.

The dual purpose BlueTop (light gray case) can be used for both starting and deep cycling -- it is a true deep cycle battery with extremely high cranking power. Uses include: trolling motors, marine applications with heavy electrical accessories, and RVs.

Product Description

Optima 34/78 RedTop is designed to deliver high power cranking ability even in harsh weather conditions. This battery is great for heavy use by hot rods and off-roaders with its leak-proof, high power, and starting ability. The unique SpiralCell design provides a strong and clean power source, ensuring the safety of you, your family and the environment. The higher reserve capacity gives you a longer shelf-life to give you the power when you need it, where you need it.Tested to exceed a continuous 200 amp load. For dual cable installation. Use with 6v or 12V Batteries. Long side Bolt Battery Terminal. Although these battery trays are used to replace stock battery trays, they are often used when relocating the battery to the trunk of the vehicle as well.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
For warranty information about this product, please Click here [PDF ] Product Warranty: For warranty information about this product, please click here [PDF ]

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OPTIMA Batteries 8004-003 34/78 RedTop Starting Battery


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What's in the box

  • battery
  • Product guides and documents

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    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    1,570 global ratings

    Customers say

    Customers like the value and ease of installation of the auto battery. For example, they mention it's worth every penny spent, and it comes with all you need to install it. That said, some complain about the warranty. Opinions are mixed on performance, fit, and quality.

    AI-generated from the text of customer reviews

    99 customers mention74 positive25 negative

    Customers like the value of the auto battery. They say it is the best value for the money, worth every penny spent, and a superior option compared to standard batteries.

    "...construction, maintenance-free design, and versatility make it a superior option compared to standard batteries...." Read more

    "...This battery was less expensive than the others and has a 3 year Free replacement from the Manufacturer...." Read more

    "...The price on the battery was excellent, though it's likely due to a couple of considerations. First, the battery is covered by a warranty...." Read more

    "...I've notice with the Walmart brand batteries is that the price is continuing to go up while the warranty is disappearing...." Read more

    33 customers mention23 positive10 negative

    Customers are mixed about the fit of the auto battery. Some mention that it fits the car perfectly fine, while others say that it does not fit their car because the cables do not reach the connection posts. The battery comes with everything you need to fit it to your application and works perfect. However, some customers say that the fit was a little tight and that the battery will not fit in late 2007 Chevy Silverado pickup.

    "...with its exceptional performance, makes it a suitable choice for various automotive applications, from daily commuting to more demanding driving..." Read more

    "...and Miscellaneous Installation Adaptors which made it very easy to fit the battery in my 2008 Dodge Ram 2500 Cummins Battery Holder...." Read more

    "...Because the interior is so small, I had a hard time getting out...." Read more

    "...A bigger battery with high cranking amps. This battery is smaller and has just as much cranking amps as the bigger ones...." Read more

    16 customers mention16 positive0 negative

    Customers find the installation of the auto battery to be very easy with a couple of basic tools. They also appreciate the hassle-free car maintenance experience, and the convenient terminal style that makes it easy to wire up heavy accessories.

    "...which is perfect for someone like me who prefers a hassle-free car maintenance experience...." Read more

    "...due to the seller services (Timely Shipping) and the product installation flexibility and Miscellaneous Installation Adaptors which made it very..." Read more

    "...Very convenient." Read more

    "Quality product and easy install" Read more

    11 customers mention11 positive0 negative

    Customers like the brackets of the auto battery. They say it comes with five mounting brackets, side mounts built in, and multiple hold-down adapters. Some customers also say it has various lower hold down blocks and a vertical spacer. Overall, customers are satisfied with the bracket set.

    "...It comes with several external brackets to use to secure the battery to your vehicle and one fit my truck perfectly...." Read more

    "...I did like that the battery came with a lot of adapters to make it fit into different car battery wells...." Read more

    "...It also has side mounts built in so you can mount it in any position." Read more

    "I like the fact that it comes with multiple hold-down adapters for multiple applications...." Read more

    10 customers mention8 positive2 negative

    Customers are satisfied with the acid leakage of the auto battery. They mention that it does not leak acid, has high-tech features, and is spill proof.

    "...I like that it is sealed/spill proof and maintenance free...." Read more

    "...They don't leak acid...." Read more

    "...I was impressed with it (no acid leakage, no terminals to clean),i installed them in my Dakota, 5.0 mustang, and i just received one for my vette...." Read more

    "...a vent and when using power - like your starter, they will leak acid out thru the vent when on their side...." Read more

    260 customers mention169 positive91 negative

    Customers are mixed about the quality of the auto battery. Some mention it's a good battery, while others say that it no longer holds a charge and failed after 1 year.

    "...Its impressive starting power, rugged construction, maintenance-free design, and versatility make it a superior option compared to standard batteries..." Read more

    "...Garbage product (maybe I got a dud to be fair) with Garbage support...." Read more

    "...and the product installation flexibility and Miscellaneous Installation Adaptors which made it very easy to fit the battery in my 2008..." Read more

    "...Now it's installed I know I will have a reliable and long lasting battery" Read more

    196 customers mention121 positive75 negative

    Customers are mixed about the performance of the auto battery. Some mention that it will perform well, is reliable, and long-lasting, while others say that it died during a slow turn.

    "...Its impressive starting power, rugged construction, maintenance-free design, and versatility make it a superior option compared to standard batteries..." Read more

    "...I jump started it, she drove home, but it died during a slow turn. I jumped it again and I drove it home. As I got into the garage it died again...." Read more

    "...So far the engine starts PRETTY EASY." Read more

    "...Now it's installed I know I will have a reliable and long lasting battery" Read more

    17 customers mention3 positive14 negative

    Customers are dissatisfied with the warranty of the auto battery. They mention that there is absolutely no warranty, Amazon refuses to honor the warranty, and the battery won't hold a charge.

    "...batteries is that the price is continuing to go up while the warranty is disappearing...." Read more

    "...battery for classic cars that don’t get driven often and their warranty is piss poor" Read more

    "Bought this June 30. It won't hold a charge. No warranty or return options available. Wasted money...." Read more

    "...Zero customer service, zero warranty honor. My rating is minus 5 stars, avoid at all costs." Read more

    Great Battery
    5 Stars
    Great Battery
    I have a 1994 Ford Bronco XLT and the past batteries I've used were Bosch or Champion battery size 27. A bigger battery with high cranking amps. This battery is smaller and has just as much cranking amps as the bigger ones. This battery was less expensive than the others and has a 3 year Free replacement from the Manufacturer. I live in the Desert where batteries usually last about 2-3 years but this battery will last at least 4-5 years.I say that it will last longer because a friend of mine had one in his Ford 1 ton van for four years and one night he left lights on and it died. It was completely dead, not even the done light went on. So he left me with this battery and bought another. I took his battery and cleaned the terminals and put it on my charger on 2 amp trickle for a week. When I came back to check on it it was fully charged and held a charge under load. So I put it in my truck and used it for another 2 years until it was down to holding 75% charge. I still use it for running 12 volts pumps and its been 7 years total. If that's not a good battery I don't know what is.
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    Top reviews from the United States

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    Customer image
    5.0 out of 5 stars Great Battery
    Reviewed in the United States on December 4, 2022
    I have a 1994 Ford Bronco XLT and the past batteries I've used were Bosch or Champion battery size 27. A bigger battery with high cranking amps. This battery is smaller and has just as much cranking amps as the bigger ones. This battery was less expensive than the others and has a 3 year Free replacement from the Manufacturer. I live in the Desert where batteries usually last about 2-3 years but this battery will last at least 4-5 years.

    I say that it will last longer because a friend of mine had one in his Ford 1 ton van for four years and one night he left lights on and it died. It was completely dead, not even the done light went on. So he left me with this battery and bought another. I took his battery and cleaned the terminals and put it on my charger on 2 amp trickle for a week. When I came back to check on it it was fully charged and held a charge under load. So I put it in my truck and used it for another 2 years until it was down to holding 75% charge. I still use it for running 12 volts pumps and its been 7 years total. If that's not a good battery I don't know what is.
    Images in this review
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    10 people found this helpful
    Report
    Reviewed in the United States on January 15, 2024
    Product Packaging: Frustration-Free PackagingVerified Purchase

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