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OPTIMA Batteries 8020-164 35 RedTop Starting Battery

4.4 4.4 out of 5 stars 2,282 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Automotive Replacement Batteries by OPTIMA

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Purchase options and add-ons

Brand OPTIMA
Size 9.38 x 7.69 x 6.75 inch
Product Dimensions 7.69"D x 9.38"W x 6.75"H
Terminal SAE Terminal
Vehicle Service Type
Passenger Car
Voltage
12 Volts
Battery Cell Composition
Lead-Acid, AGM
Item Weight
31.7 Pounds

About this item

  • 12-Volt, 720 Cold Cranking Amps, Size: 9.38 x 7.69 x 6.75-Inches Weight: 31.7 pounds, SAE Posts
  • Reserve capacity of 90 minutes for constant performance
  • Optimal starting power even in bad weather. Case material is Polypropylene
  • Fifteen times more resistant to vibration for durability
  • This item is not for sale in Catalina Island
  • Fit Type: Vehicle Specific
See more product details

Frequently bought together

$269.99
Get it as soon as Sunday, Mar 31
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Ships from and sold by Amazon.com.
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$9.99 ($5.00/Count)
Get it as soon as Sunday, Mar 31
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Sold by huanheng and ships from Amazon Fulfillment.
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OPTIMA Batteries 8020-164 35 RedTop Starting Battery
OPTIMA Batteries 8020-164 35 RedTop Starting Battery
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Price$269.99$280.38$223.95$289.99$154.99$295.76
Delivery
Get it as soon as Sunday, Mar 31
Get it Mar 29 - Apr 3
Get it Mar 29 - Apr 3
Get it Mar 29 - Apr 3
Customer Ratings
Easy to install
4.1
4.2
4.6
Value for money
3.0
4.2
4.3
Longevity
2.9
5.0
4.0
Sold By
Amazon.com
Autoplicity ✅
Interstate Batteries
XingCell Lithium Power
Hykolity
4Wheel Online
compatible vehicles
Passenger Car
Passenger Car, Truck, SUV, Van
Passenger Car, ATV, SUV, Truck
Passenger Car
size
9.38 x 7.69 x 6.75 inch
10.75x6.90x9.45
BCI Group 35/PD23
terminal type
SAE Terminal
Top Post
SAE Terminal
A Terminal
SAE Terminal
voltage
12 volts
12 volts
12 volts
12.8 volts
12 volts of direct current
12 volts
battery composition
lead acid agm
sealed lead acid
lead acid
lithium ion
lead acid agm
lead acid agm
weight
31.7 pounds
42.5 pounds
43.8 pounds
13.6 pounds
41.6 pounds
47 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 35 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.

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 ]

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OPTIMA Batteries 8020-164 35 RedTop Starting Battery


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What's in the box

  • battery
  • Product guides and documents

    Looking for specific info?

    Customer reviews

    4.4 out of 5 stars
    4.4 out of 5
    2,282 global ratings

    Customers say

    Customers like the performance and seal of the auto battery. For example, they mention it works well and has no issues. That said, some complain about the warranty. Opinions are mixed on quality, value, durability, and fit.

    AI-generated from the text of customer reviews

    142 customers mention100 positive42 negative

    Customers generally like the performance of the auto battery. They say it works well, has no issues, and functions as it should. Some say it fits and works in their 2008 C6 Corvette perfectly. They also say the Spiral Cell batteries are a proven performer and have no obvious malfunctions. Overall, most are happy with their purchase and recommend it to others.

    "Order arrived on time, and fit and works in my 2008 C6 Corvette perfectly!..." Read more

    "...After installing and connecting, fired up the Taco and no obvious malfunctions, incompatibility (all electronics seem to function the same) and my..." Read more

    "...These new ones are pure crap!..." Read more

    "...It’s new so it works great for the week that I’ve owned it...." Read more

    40 customers mention38 positive2 negative

    Customers find the installation of the auto battery to be easy. They mention that it works great in their 4Runner and is easy to mount.

    "...Fits good and installed easily. A little smaller and lighter, which are plus. After the replacement, the car started strong assuringly...." Read more

    "...The battery was simple to install using the following steps:..." Read more

    "...It was super easy to put in and light-weight yet powerful! I am very satisfied with my purchase!..." Read more

    "...49 batteries in the same Mercedes sedan, this was a cinch to install in the battery tray tucked deep next to the firewall, partially buried under..." Read more

    21 customers mention16 positive5 negative

    Customers like the seal of the auto battery. They say it has no acid leakage and never has any corrosion around the terminals. They appreciate the spiral cell permanently sealed technology and the fact that the battery is spill proof. Customers also mention that the gel battery has no water inside and will not spill acid if tipped.

    "...Another positive aspect of Optima batteries is they are completely sealed so there are no terminal corrosion issues or other potentially messy..." Read more

    "...are used in the us military due to their dependability and spill proof properties. i cant say enough good things about them...." Read more

    "...This battery is also fully sealed so never have to worry about battery acid leaking as the electro light is a gel and not a liquid so it will hold..." Read more

    "...after just a bit over a year since installation, the negative terminal started leaking acid. I wrote to Optima and included my Amazon receipt...." Read more

    457 customers mention244 positive213 negative

    Customers are mixed about the quality of the auto battery. Some mention it's a good product, with top quality and a powerful battery, while others say that it failed after just under three years. The battery itself is great, but has a defect that only would crank at. The other customers say that the battery will not hold a charge anymore and will fail in 6-12 months.

    "...Has been starting just fine, even on coldest mornings here which have been down to 31F...." Read more

    "I bought this to replace what the auto shops kept saying was a low voltage battery...." Read more

    "Fits perfectly inside a 2014 Juke SV, started without issue." Read more

    "...Here's what's going to happen... It will fail in 6-12 months and you are going to end up spending a lot of your time trying to get it replaced...." Read more

    109 customers mention73 positive36 negative

    Customers have mixed opinions about the value of the auto battery. Some say that it lives up to the hype and is well worth the asking price. They say it's an affordable battery that is maintenance free. However, others say that the batteries are pretty expensive and overpriced.

    "Optima batteries are still the best, worth the price." Read more

    "...this battery over the other generic type batteries and well worth the cost." Read more

    "...the only drawback was the value. slightly over priced." Read more

    "Optimas are still great batteries for the price and reliability...." Read more

    78 customers mention46 positive32 negative

    Customers are mixed about the fit of the auto battery. Some mention that it fits perfectly in a 2005 Mazda RX-8, and works great; while others say that it's not a direct fit and may have to check if the posts are. Some say that the battery is too small for a Toyota FJ, and does not fit the horizontal stock battery brace.

    "Fits perfectly inside a 2014 Juke SV, started without issue." Read more

    "...Cons:*A little short for the stock battery well(-1/4 a star) However this can be fixed by using the terminal cover that came with the battery..." Read more

    "...The Optima is lighter, smaller and has substantially more CCA's then the OEM Toyota battery, and of course it won't spill and/or (hopefully)..." Read more

    "It is a slightly tricky fit. But once you've got it in there it's great. No issues." Read more

    60 customers mention41 positive19 negative

    Customers are mixed about the durability of the auto battery. Some mention it's durable, reliable, and can last well if kept in frequent use. However, others say that it started getting weak and started failing from a bad cell.

    "...Very reliable. Being a dry cell you have no corrosion build up on the posts." Read more

    "...After the replacement, the car started strong assuringly. So far (a couple of months), no issue...." Read more

    "...Nope.When it first started failing from a bad cell I almost had them ready to replace it, but then they (Optima) decided I had to take it..." Read more

    "...for years and they are used in the us military due to their dependability and spill proof properties. i cant say enough good things about them...." Read more

    19 customers mention0 positive19 negative

    Customers are dissatisfied with the warranty of the auto battery. They mention that it's worthless, Optima won't honor it, and it'll go bad before the 3 year warranty. They also say that there's no refund or exchange available, and the return policy is not very customer oriented.

    "...180 Degree turn on my initial review - This is a piece of Shieza!!! No Warranty - No Return - No Working = No Buy!!!" Read more

    "...Nothing worked battery is dead and has tested bad. Warranty is a joke as I am out a vehicle now and supposedly per the manufacturer they have issues..." Read more

    "No longevity at all died in 2 months. No Customer service." Read more

    "avoid this battery, goes bad before 3 year warranty an Amazon does not honor warranty even though this item was bought and sold by Amazon LLC." Read more

    Excelente producto
    5 Stars
    Excelente producto
    Llego en poco tiempo y quedo muy bien esperemos el desempeño
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    Top reviews from the United States

    Reviewed in the United States on January 27, 2024
    Reviewed in the United States on April 1, 2023
    5 people found this helpful
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    Reviewed in the United States on January 20, 2024
    One person found this helpful
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    Reviewed in the United States on August 8, 2012
    21 people found this helpful
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    Reviewed in the United States on February 25, 2024
    One person found this helpful
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    Reviewed in the United States on February 5, 2024
    One person found this helpful
    Report
    Reviewed in the United States on February 10, 2023
    Customer image
    4.0 out of 5 stars First time battery buyer.
    Reviewed in the United States on February 10, 2023
    I bought this to replace what the auto shops kept saying was a low voltage battery. I just wish that I had payed attention to the dimensions of the battery since it ended up being a couple of inches too short for the hold down bar in my 2016 Toyota Corolla. Also I didn't want to pay close to $350 for the shop's cheapest battery and labor. I wanted a quality battery and so far it is holding up to that.
    *Update*
    I ended up buying an extra hold down bar, shown in the picture, and it worked like a charm. Now that battery will not budge.
    Images in this review
    Customer image
    Customer image
    3 people found this helpful
    Report
    Reviewed in the United States on December 31, 2023
    One person found this helpful
    Report

    Top reviews from other countries

    Anthony
    5.0 out of 5 stars Best battery ever.
    Reviewed in Canada on February 16, 2024
    Ross Stanton
    5.0 out of 5 stars It's a premium quality automotive battery.
    Reviewed in Canada on February 15, 2024
    Dany Champagne
    5.0 out of 5 stars High quality battery
    Reviewed in Canada on November 4, 2018
    Customer image
    Dany Champagne
    5.0 out of 5 stars High quality battery
    Reviewed in Canada on November 4, 2018
    I bought this battery as a replacement for my old lead-acid battery. I needed AGM cause I do lapping events with my car and the lead-acid batteries are unsafe in case of an accident. Especially in my case, I've changed the location of my battery, it is now in the center of the passenger compartment, right on the floor. The battery was a bit low when I received it, but it's probably just for sitting on the shelves for a while. Gave it a good charge at low amps for a couple of days and it works just fine now.
    Images in this review
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    Customer image
    2 people found this helpful
    Report
    Amazon Customer
    1.0 out of 5 stars Do not recommend, won't hold a charge
    Reviewed in Canada on January 9, 2021
    2 people found this helpful
    Report
    Borislav Todorov
    5.0 out of 5 stars Great battery
    Reviewed in Canada on March 15, 2019