See Details

25% Off Online Orders of Select Hard Parts. Enter Promo Code MMJ25 in Cart.

Close (X)

Receive Up To 25% Off Your Online Purchase Of Select Parts And Accessories
Use promotional code MMJ25 at checkout to receive 25% off the following categories: Select Brake Parts, Select Hi-Performance and Truck Accessories, Batteries, Shocks & Struts, Paint, Splash Guards, Select Ventvisors & Bug Shields, Springs & Spacers, Water Pumps, Belts, A/C Parts, Starters, Alternators, Fuel Pumps, Radiators, Radiator Fans, Thermostats, Caps & Clamps, Clutches, Spark Plugs, Plug Wires, Chassis, CV Axles, Batteries, Battery Chargers & Booster Cables, OE Locks, Rack & Pinons, Window Motors, RainX Wipers, Appearance Chemicals, Car Wash Accessories, Floor Mats, Lift Equipment, Hand Tools, Travel Accessories, Outdoor Lifestyle, Towing, Car Covers, Seat Covers, Wheel Covers, Body Repair, Collectibles and Apparel.

Use promotional code MMJ20 at checkout to receive 20% off the following categories: Ignition, Air Filters, Oil Filters, Bearings & Seals and Engine Parts.

Offers not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included in these offers will be displayed in product search results and product detail pages. Excludes the following brands: Champion, Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner, Philips and BBK Performance. Valid online until 11:59 PM EST on 9/24/17.

Receive 25% Off Wagner branded brake parts with your online purchase. Use promotional code: WAGNER25.

Receive 10% Off Select Champion, MOOG and FelPro branded products with your online purchase. Use promotional codes: CHAMP10, MOOG10 and/or FELPRO10.

Free Shipping on Orders Over $40 or in-store pickup

Optima RedTop Sealed Car Battery Group Size 34/78DT 9083547
Zoom [+]
  • Part #: RED34/78|
  • SKU: 9083547

Available today

Pay in Store Available

    • Featuring AGM battery technology, this premium car battery will tolerate repeated deep discharges and provide an overall longer service life.
    • The Optima 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.

Optima RedTop Sealed Car Battery Group Size 34/78DT

The ultimate performance battery for cars, trucks & SUV's, the Optima Redtop sealed car battery is the best in class battery replacement option. Optima batteries promise impressive high-power delivery and extreme resistance to the most common causes of battery failure.
  • Featuring AGM battery technology, this premium car battery will tolerate repeated deep discharges and provide an overall longer service life.
  • The Optima 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.
  • Highly resistant to failure from vibration, Optima batteries provide efficient starting power for SUVs, trucks and cars.
  • This highly efficient replacement battery mounts in any position.
  • Optima batteries come with a 3-year free replacement guarantee.
  • Optima batteries provide the most efficient starting power for SUVs, trucks and cars.
  • The Optima RedTop car battery will outperform and outlast traditional batteries in demanding cranking/starting applications.
  • Our wide assortment of subwoofers, amplifiers and head units will pair perfectly with this battery replacement option.
  • The Pep Boys Say:"Optima RedTop batteries provide reliable starting power under the most extreme heat, cold and high vibration environments. Optima delivers performance."
  • The Pep Boys Say: "Optima has built a long standing reputation for delivering performance in demanding applications where resistance to vibration, temperature and deep cycling capability are a priority."

Wet or Dry
Reserve Capacity (minutes)
CCA,Group Size,Battery Type,Battery Usage
Group Size
Right Or Left Hand Positive
Terminal Type
Length (in.)
Width (in.)
Cold Cranking Amps (CCA) @ 0F
Height (in.)
Weight (lbs)
Cranking Amps @ 32F
Battery Usage
Truck/Car Battery
Group Size
Battery Type


Optima RedTop Sealed Car Battery Group Size 34/78DT is rated 4.6 out of 5 by 22.
Rated 4 out of 5 by from My pros and cons of this battery Since I have purchased this battery before for my previous vehicle, I was happy with its performance so I decided to get it again. This time i purchased it to put it on my 1978 corolla that is only driven to car shows. During the winter it lost its charge in a week. By the time the spring time came that I was going to drive my car it wouldn't crank and the battery was swollen on the top part. I took it back to PepBoys and they switched it for a new one. So far its working great. The great thing about it is that they have a three year warranty. I will connect it to a battery charger this winter to prevent the same issue.
Date published: 2015-07-20
Rated 4 out of 5 by from technology of AGM Many people think the AGM batteries are best for mounting location benefits. Although that is a benefit because they are non spillable, it is more about the way AGM batteries give up or deliver the energy stored within. The surface area of the Optima Red Top spiral technology is enormous compared to a traditional "wet" lead acid battery.The red top optima is able to receive a charge quickly too. The daily driver will benefit from the quick recharge and stable power delivery of this battery. Texas heat is brutal and the AGM works better than lead-acid. The price seems high until compared to benefits and the fact that the lead inside is purer. AGMs don't have to support hanging from tabs in a liquid like traditional plates do, those consist of alloys which reduces the reaction. Phone chargers, car audio, and other accessories will benefit from consistent stable power delivery. The 34/78 posts offer multi-purpose connections for fuse blocks or jumper cables without the hassle of trying to get them to stay on the little side post terminals.
Date published: 2015-07-13
Rated 5 out of 5 by from exactly what i needed great price and quick delivery.
Date published: 2015-05-02
Rated 5 out of 5 by from Best battery and best price on the market I have used Optima a Redtop Battery for my off road Jeep for years, always thought they were the best. Never even thought about an Optima for my work truck. This time I was checking around for a replacement for my truck and looked at the Optima. Liked what I saw on reviews and then in checking with suppliers, I found that Pep Boys were offering 30% of their initial price. That was even more than 30% lower than any other parts place. Great product and outstanding price.
Date published: 2015-01-11
Rated 3 out of 5 by from Put in truck and it started, Great Old battery was losing its charge put this one in and the truck started up, and it's continuing to start every time. Could have came with better vehicle specific installation instructions, comes with every adapter for all kinds of vehicles, and couple options for Ford.
Date published: 2014-12-25
Rated 5 out of 5 by from great product pepboys had it when i needed it Price is way to high but they had it when I needed it !!!! Product itself is excellent
Date published: 2014-12-10
Rated 2 out of 5 by from starts of good but.... The battery starts off good but doesn't last.... had to replace it twice.... but customer service at the Randallstown location is superb
Date published: 2014-11-09
Rated 5 out of 5 by from Great Battery! Solved my cranking issues as my battery is far from the starter. Problem solved....
Date published: 2014-10-28
Rated 5 out of 5 by from Best battery on the market. I found this battery to be the best and has a great warranty. Pep Boys is the best place to buy it (and anything else for your car/truck).
Date published: 2014-09-27
Rated 5 out of 5 by from My 2nd Optima Battery & it works fine Although the Red Top Optima Battery had to have a Hold Down Puck Adapter for the installation in my Silverado Truck it came with the battery & was a cinch to install. Have had a Red Top Battery in my Jeep CJ5 for over 6yrs & it is still going strong.
Date published: 2014-08-11
Rated 5 out of 5 by from Good product,from good people,always helpful,at a good price. Above! Nuff said!
Date published: 2014-07-18
Rated 5 out of 5 by from Great price & fast shipping Received in 2 days changed in 15 minutes sure beats waiting 1-2 hrs to have someone do it for me. Plus I have a local Pep Boys if there is a warranty problem
Date published: 2014-02-13
Rated 5 out of 5 by from Best Battery on the Planet This is my 2nd optima battery purchase. The first one lasted approx. 7 years. and it really didn't go dead, but I was experiencing a weak start on occasion so I decided to replace it before I got stranded. Highly recommend the optima battery.
Date published: 2013-09-23
Rated 5 out of 5 by from I like optima batteries great price for this battery will use you for other parts for my truck
Date published: 2013-09-18
  • y_2017, m_3, d_5, h_24
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0
  • cp_2, bvpage2n
  • co_hasreviews, tv_0, tr_22
  • loc_en_US, sid_9083547, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_pepboys
PayPal available for online purchases. Major credit cards accepted online and in store. Pay online, in-store or take advantage of our Pep Boys credit card. Learn more and see additional details in cart.