Help is just a click away!
Click here to chat with a Speedway Team Member
Online - Chat with us!
Products to Compare (max of 3)
Compare These Parts
Talk to the Experts. Call 800.979.0122, 7am-10pm, everyday.
Customer Service
Since 1952
  • Expert Tech Support
  • Huge Inventory
  • Fast Shipping
Talk to the Experts. Call 800.979.0122
Shop By
Street Race Truck More... The Toolbox
Add to Cart
Optima Batteries 34/78-1050 Std Group 34/78 Red Top Battery, 1000 CA
Optima Batteries 34/78-1050 Std Group 34/78 Red Top Battery, 1000 CA

Optima Batteries 34/78-1050 Std Group 34/78 Red Top Battery, 1000 CA

Universal Fit, AGM Battery Type, 10.00" Overall Length, 6.88" Overall Width, 40.20 lbs. Weight

15 Reviews | 3 Answered Questions
In Stock
Select your vehicle to verify fitment.
Select Vehicle
Optima Batteries 34/78-1050 Std Group 34/78 Red Top Battery, 1000 CA
Optima Batteries 34/78-1050 Std Group 34/78 Red Top Battery, 1000 CA
Zoomed In Image
Part # 91066411
Add to Cart
Call to Order
Add to Buildlist

Videos & Articles

Important Messages:

  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.


MFG. Part #:
Battery Type:
Overall Length:
Overall Width:
Overall Height:
Battery Terminals:
Battery Usage:
Deep Cycle
Battery BCI Group:
Cranking Amps (0 deg. F):
Cranking Amps (32 deg. F):
40.20 lbs.
12 volts
Sold in Quantity:


As featured on Classic Truck’s Week to Wicked. Watch the transformation here!

Discover the revolutionary new technology that has changed the way the world looks at batteries: Optimas famous Spiralcell Technology. These batteries last 2-3 times longer than other batteries and are 100% maitenance free. Plus, with the unique sealed design, you can mount them in any position.

  • Strongest 5 second starting burst
  • Up to 2x longer life
  • More than 15x the vibration resistance
  • Completely spill-proof, mountable in many positions
  • Maintenance free
  • Faster recharging capabilities
  • Optimal starting power, regardless of temperature

4 post design - two on top and two on the side. Posts are 1-1/8" tall.

Optima Spec Sheet (PDF)

NOTE: For circle track / off road applications, we recommend the Optima Deep Cycle battery (Yellow Top).

Item Details

'9-15/16" X 6-13/16" X 7-13/16" Can''t ship Air!'

Material Safety Data Sheet (PDF)


  1. The vehicle must have a properly working alternator, and should not have “aftermarket accessories” with amperage drain exceeding 10 amps. For applications with extra accessories, the correct Optima battery to use is the Yellow Top.
  2. The vehicle must have a fully functional voltage regulated charging system. Use of accessories that prevent the charging system form maintaining the battery in a fully charged state will void the warranty and cause premature failure. For these applications, an Optima deep cycle battery is recommended for this combination of starting and heavy cycling.
  3. Red top batteries should only be used for hot rod/street rod/OE applications where the system has a fully functional voltage regulated charging system. Red top batteries should not be used for off road/circle track aftermarket performance applications. The warranty is voided when a red top battery is used with out a fully functional voltage regulated charging system.


Optima Red Top Warranty Info

  • 12V Passenger Vehicle / Light Truck
    • 36 Months Free Replacement, Remaining 36 Month Prorated
  • Abusive service / Deep Cycle Applications / Car Audio
    • Not covered

Complete Warranty - Purchased Before 2-1-09 (PDF)

Complete Warranty - Purchased On or After 2-1-09 (PDF)

Some parts are not legal for use in California or other states with similar laws/regulations

Related Products

More Like This


Q & A

Videos & Articles
  • Visit the Toolbox

    The Toolbox is Speedway Motors' hub for professionally written articles.

  • There are 3 basic automotive battery designs in use today. Here is some information about each.
  • In this episode, Project Chevelle takes a big step in its muscle car transformation. It's out with the little old 307 and to the dyno with our new 383 from BluePrint Engines!
  • This creative Chevelle project explains the process of installing a battery box into a retro cooler with some hiccups along the way. Where there's a will, there's a way.

You May Also Like