Optima SC34U Red Top Starting Battery - Group 34/78

Optima red top absorbed glass mat (AGM) starting and deep cycling batteries are sealed and maintenance-free. They combine proven lead/acid electrochemistry with a unique highly efficient spiral-cell design that provides up to twice the service life of a traditional starting battery, faster charging, and more recharging cycles - even in the hottest and coldest climates. This is true to the Optima battery 34/78. It has a longer life vs standard flooded batteries.
Red Top models are Starting Batteries with high cold cranking amps - ideal for extreme duty vehicles. You know who you are. Out-performs and outlasts traditional batteries in demanding cranking/starting applications.
SpiralCell technology with 99.99 pure lead delivers more power and consistently outperforms conventional flat plate batteries for high performance applications.

Red Top batteries are best suited for vehicles that have alternators capable of keeping up with all electrical loads. If you have demanding electrical accessory loads - such as winches, audio systems, and other devices - a high performance Optima Yellow Top dual purpose battery will be a better choice.

• This Optima RedTop Battery Delivers the strongest 5 second ignition power for a reliable start-up every time
• Outperforms and outlasts traditional batteries in demanding cranking/starting power applications
• Optima batteries red top have a high power output
• Spill proof - no excess liquid; can be operated in any position without the risk of leakage
• 15x the vibration resistance of a standard flooded battery
• Maintenance free for maximum convenience and basic electrical demands
• A high performance AGM battery never needs water; sealed - so no corrosion can form on the posts, connectors, or cables
• Completely non spillable mountable in many positions
• More economical than ordinary batteries over the long life of the battery
• SAE automotive & GM style side terminal 3/8"-16 UNC-2B
• Dimensions (including terminals):   10"L x 6.9"W x 7.8"H
• Weight:   39 lb
• 3-year free replacement warranty; 1-year commercial use

Are Optima Red Top batteries worth it?

The RedTop offers a powerful 5-second burst of energy whenever you need to kick-start your vehicle, making it an excellent choice for those prioritizing dependability.

How do I know if my Optima Red Top battery is bad?

If it's fully charged and still loses power within a day or two, then it's no longer functional. Red Tops are designed for starting - with thin plates for rapid power release - and like any starting battery, they cannot endure complete discharge. If a starting battery is completely drained multiple times, it is typically damaged.