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Deal.ai › Optima
Optima
Optima 34/78

Optima 34/78

4.7(3 ratings)

Best price now

$200.00at BonanzaChecked 52 min ago

31% under what the other stores charge

Compared across 20 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $200.00 at Bonanza (checked Nov 12, 2026).
  • Checked at 20 stores.
  • Our take on the Optima 34/78

    The Optima RedTop 34/78 is a sealed absorbed glass mat (AGM) starting battery built for a strong cranking burst and resistance to vibration and extreme temperatures. It is spill-proof, maintenance-free and can be mounted in almost any position, which suits sports cars, trucks, SUVs, hot rods and off-road builds. Against conventional flooded batteries it trades a higher upfront cost for longer life and no acid handling, but it is a starting battery only, not a deep-cycle unit for winches or trolling motors. Owners like the reliable cold starts and long service life; some report shorter life than expected in hot climates or with heavy accessory loads.

    Best forSports and luxury cars needing a strong startTrucks, SUVs and off-road vehiclesHot rods and custom builds with unusual battery placementOwners replacing a flooded battery who want no maintenance
    Pros
    • Strong cranking burst for cold starts
    • Sealed AGM design resists vibration and spills
    • Mounts in nearly any position
    • Maintenance-free with no water checks
    • Recharges faster than many flooded batteries
    Cons
    • Starting-only design, not for deep-cycle use
    • Costs more than a conventional battery
    • Some owners report shorter life in hot climates
    • Needs a charger suited to AGM batteries

    Optima 34/78 prices at every store

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    • TruckPointNew

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    • Fast Track AutoNew

      In stockReturn policy

      $279.99Checked 52 min ago
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    • Battery GuysNew

      In stockReturn policy

      $289.99Checked 52 min ago
      Visit Battery Guys
    • WCB | West Coast BatteriesNew

      In stockReturn policy

      $289.99Checked 52 min ago
      Visit WCB | West Coast Batteries
    • 797 PerformanceNew

      In stock

      $279.99+ $13.99 shippingChecked 52 min ago
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    • Battery WorldNew

      In stockReturn policy

      $299.95Checked 52 min ago
      Visit Battery World
    • Continental Battery SystemsNew

      In stock

      $310.99Checked 52 min ago
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    • Speedway MotorsNew

      In stock

      $279.99+ $42.99 shippingChecked 52 min ago
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    • BonanzaNew

      Availability unknownSold by theman71177's booth

      $200.00Checked 52 min ago
      Visit Bonanza
    • Busted Knuckle Off RoadNew

      Availability unknown

      $279.00Checked 52 min ago
      Visit Busted Knuckle Off Road
    • AmazonNew

      Availability unknown

      As an Amazon Associate, Deal.ai earns from qualifying purchases.

      $279.99Free shippingChecked 52 min ago
      Visit Amazon
    • AmericanMuscle.comNew

      Availability unknown

      $279.99Checked 52 min ago
      Visit AmericanMuscle.com
    • Racecar EngineeringNew

      Availability unknown

      $289.99Checked 52 min ago
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    • champsperformance.comNew

      Availability unknown

      $289.99Checked 52 min ago
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    • Impel MotorsportsNew

      Availability unknown

      $289.99Checked 52 min ago
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    • Mel Hambelton RacingNew

      Availability unknown

      $289.99Checked 52 min ago
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    • SK Speed Racing EquipmentNew

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      $299.99Checked 52 min ago
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    • VizopowerNew

      Availability unknown

      $376.04Checked 52 min ago
      Visit Vizopower
    • eBayNew

      Availability unknownSold by invenniongroup

      $503.16Checked 52 min ago
      Visit eBay

    Store links may earn us a commission.

    Optima 34/78 price history

    Lowest price we've seen: $200.00 on Nov 12 at Bonanza. Tracked across 14 stores since Nov 12.

    What reviewers say

    Owners generally praise the RedTop 34/78 for dependable starting, long service and a sealed build that tolerates vibration and odd mounting angles. Complaints center on lifespan in hot climates and on batteries that failed earlier than expected, sometimes with heavy accessory loads.

    What people mention
    • Starting powerPraisedOwners say it cranks strongly in cold weather and starts engines reliably.
    • LifespanMixedMany get several years of service, but some report failures well short of expectations.
    • Heat toleranceCriticisedOwners in hot climates report shorter life than advertised.
    • BuildPraisedThe sealed AGM case resists vibration, spills and corrosion.
    • Deep cyclingCriticisedDraining it with winches or accessories wears it out; it is a starting battery.

    About the Optima 34/78

    The Optima REDTOP is a high-performance Absorbed Glass Mat (AGM) battery made for starting applications. It is designed for high power delivery and for resistance to extreme conditions that often lead to common battery failures.

    It is a leak-proof, starting-only battery for sports and luxury cars, SUVs, trucks, hot rods, off-road vehicles and other demanding cranking and starting uses. It is virtually spill proof, maintenance-free and can be mounted in virtually any position.

    Compared with traditional batteries, it offers up to 3 times longer life and is 15 times more vibration-resistant. It also recharges faster.

    Model
    Optima REDTOP 34/78
    Type
    Absorbed Glass Mat (AGM) starting battery
    Use
    Starting only
    Maintenance
    Maintenance-free
    Spill resistance
    Virtually spill proof
    Mounting
    Virtually any position
    Vibration resistance
    15 times more than traditional batteries
    Service life
    Up to 3 times longer than traditional batteries
    Suited for
    Sports and luxury cars, SUVs, trucks, hot rods, off-road vehicles

    Questions and answers

    Is the RedTop 34/78 a deep-cycle battery?
    No. It is a starting battery designed for short, high-current cranking bursts. Repeated deep discharges shorten its life.
    Can it be mounted on its side?
    Yes. The sealed AGM design allows mounting in nearly any position, unlike a flooded battery that must stay upright.
    Does it need a special charger?
    Use a charger with an AGM setting. A standard flooded-battery charger can overcharge it.
    How does it compare with the YellowTop?
    The RedTop is for starting only. The YellowTop is a dual-purpose battery built to handle deep cycling for accessories and winches.
    What is in the box?
    The battery itself. Terminal adapters and hold-down hardware vary by vehicle, so check what your car needs.
    Does it fit my car?
    Group 34/78 is a common fitment, but check your vehicle's group size, terminal layout and hold-down before buying.
    Where is the Optima 34/78 cheapest?
    At Bonanza, for $200.00, 31% under what the other stores charge, as of our latest check.
    What do buyers say about the Optima 34/78?
    Rated 4.7 out of 5 from 3 ratings.
    Where can I buy the Optima 34/78?
    20 stores we checked sell it, including Battery Guys, TruckPoint, WCB | West Coast Batteries, Battery World, Fast Track Auto.

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    • Bonanza deals and prices

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