Optima Red Top Group 75/25 Starting Battery SC75U

Optima absorbed glass mat (AGM) 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.
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.

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 - an Optima YellowTop dual purpose battery will be a better choice.

• Delivers the strongest 5 second ignition power for a reliable start-up every time
• Outperforms and outlasts traditional batteries in demanding cranking/starting applications
• Spill proof - no excess liquid; can be operated in any position without the risk of leakage
• Never needs water; sealed - so no corrosion can form on the posts, connectors, or cables
• Unaffected by vibrations that destroy ordinary batteries
• More economical than ordinary batteries over the long life of the battery
• Dual posts: SAE automotive & GM style side terminal 3/8"-16 UNC-2B
• Dimensions (including terminals):   9.3"Lx6.8"Wx7.6"H
• Weight:   33 lb
• 3-year free replacement warranty; 1-year commercial use

How do I wake up my OPTIMA battery?

If an OPTIMA lithium-enabled charger is utilized, the OPTIMA REDTOP lithium battery will awaken from Sleep/Storage mode for charging automatically. However, if a non-OPTIMA charger is used, it may be required to manually activate the battery using the POWERLINK™ button.

How long can an OPTIMA battery sit unused?

Depending on the storage temperature, the OPTIMA can typically last 8 to 12 months and start most vehicles. It is advisable to store the battery in a cool, dry place when feasible. Monitor the battery voltage every 6 months and recharge if it drops below 12.6 volts.